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1 /* |
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2 * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package javax.management.remote.rmi; |
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27 |
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28 import com.sun.jmx.remote.internal.ClientCommunicatorAdmin; |
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29 import com.sun.jmx.remote.internal.ClientListenerInfo; |
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30 import com.sun.jmx.remote.internal.ClientNotifForwarder; |
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31 import com.sun.jmx.remote.internal.rmi.ProxyRef; |
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32 import com.sun.jmx.remote.util.ClassLogger; |
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33 import com.sun.jmx.remote.util.EnvHelp; |
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34 import java.io.ByteArrayInputStream; |
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35 import java.io.IOException; |
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36 import java.io.InputStream; |
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37 import java.io.InvalidObjectException; |
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38 import java.io.ObjectInputStream; |
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39 import java.io.ObjectStreamClass; |
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40 import java.io.Serializable; |
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41 import java.lang.ref.WeakReference; |
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42 import java.lang.reflect.Constructor; |
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43 import java.lang.reflect.InvocationHandler; |
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44 import java.lang.reflect.InvocationTargetException; |
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45 import java.lang.reflect.Module; |
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46 import java.lang.reflect.Proxy; |
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47 import java.net.MalformedURLException; |
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48 import java.rmi.MarshalledObject; |
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49 import java.rmi.NoSuchObjectException; |
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50 import java.rmi.Remote; |
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51 import java.rmi.ServerException; |
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52 import java.rmi.UnmarshalException; |
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53 import java.rmi.server.RMIClientSocketFactory; |
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54 import java.rmi.server.RemoteObject; |
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55 import java.rmi.server.RemoteObjectInvocationHandler; |
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56 import java.rmi.server.RemoteRef; |
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57 import java.security.AccessController; |
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58 import java.security.PrivilegedAction; |
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59 import java.security.PrivilegedExceptionAction; |
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60 import java.security.ProtectionDomain; |
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61 import java.util.Arrays; |
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62 import java.util.Collections; |
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63 import java.util.HashMap; |
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64 import java.util.Hashtable; |
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65 import java.util.Map; |
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66 import java.util.Objects; |
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67 import java.util.Set; |
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68 import java.util.WeakHashMap; |
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69 import java.util.stream.Collectors; |
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70 import javax.management.Attribute; |
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71 import javax.management.AttributeList; |
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72 import javax.management.AttributeNotFoundException; |
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73 import javax.management.InstanceAlreadyExistsException; |
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74 import javax.management.InstanceNotFoundException; |
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75 import javax.management.IntrospectionException; |
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76 import javax.management.InvalidAttributeValueException; |
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77 import javax.management.ListenerNotFoundException; |
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78 import javax.management.MBeanException; |
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79 import javax.management.MBeanInfo; |
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80 import javax.management.MBeanRegistrationException; |
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81 import javax.management.MBeanServerConnection; |
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82 import javax.management.MBeanServerDelegate; |
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83 import javax.management.MBeanServerNotification; |
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84 import javax.management.NotCompliantMBeanException; |
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85 import javax.management.Notification; |
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86 import javax.management.NotificationBroadcasterSupport; |
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87 import javax.management.NotificationFilter; |
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88 import javax.management.NotificationFilterSupport; |
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89 import javax.management.NotificationListener; |
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90 import javax.management.ObjectInstance; |
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91 import javax.management.ObjectName; |
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92 import javax.management.QueryExp; |
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93 import javax.management.ReflectionException; |
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94 import javax.management.remote.JMXConnectionNotification; |
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95 import javax.management.remote.JMXConnector; |
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96 import javax.management.remote.JMXConnectorFactory; |
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97 import javax.management.remote.JMXServiceURL; |
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98 import javax.management.remote.NotificationResult; |
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99 import javax.management.remote.JMXAddressable; |
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100 import javax.naming.InitialContext; |
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101 import javax.naming.NamingException; |
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102 import javax.rmi.ssl.SslRMIClientSocketFactory; |
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103 import javax.security.auth.Subject; |
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104 import jdk.internal.module.Modules; |
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105 import sun.reflect.misc.ReflectUtil; |
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106 import sun.rmi.server.UnicastRef2; |
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107 import sun.rmi.transport.LiveRef; |
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108 import java.io.NotSerializableException; |
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109 |
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110 /** |
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111 * <p>A connection to a remote RMI connector. Usually, such |
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112 * connections are made using {@link |
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113 * javax.management.remote.JMXConnectorFactory JMXConnectorFactory}. |
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114 * However, specialized applications can use this class directly, for |
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115 * example with an {@link RMIServer} stub obtained without going |
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116 * through JNDI.</p> |
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117 * |
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118 * @since 1.5 |
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119 */ |
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120 public class RMIConnector implements JMXConnector, Serializable, JMXAddressable { |
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121 |
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122 private static final ClassLogger logger = |
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123 new ClassLogger("javax.management.remote.rmi", "RMIConnector"); |
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124 |
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125 private static final long serialVersionUID = 817323035842634473L; |
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126 |
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127 static final class Util { |
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128 private Util() {} |
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129 |
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130 /* This method can be used by code that is deliberately violating the |
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131 * allowed checked casts. Rather than marking the whole method containing |
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132 * the code with @SuppressWarnings, you can use a call to this method for |
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133 * the exact place where you need to escape the constraints. Typically |
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134 * you will "import static" this method and then write either |
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135 * X x = cast(y); |
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136 * or, if that doesn't work (e.g. X is a type variable) |
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137 * Util.<X>cast(y); |
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138 */ |
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139 @SuppressWarnings("unchecked") |
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140 public static <T> T cast(Object x) { |
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141 return (T) x; |
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142 } |
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143 } |
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144 |
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145 private RMIConnector(RMIServer rmiServer, JMXServiceURL address, |
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146 Map<String, ?> environment) { |
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147 if (rmiServer == null && address == null) throw new |
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148 IllegalArgumentException("rmiServer and jmxServiceURL both null"); |
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149 initTransients(); |
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150 |
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151 this.rmiServer = rmiServer; |
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152 this.jmxServiceURL = address; |
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153 if (environment == null) { |
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154 this.env = Collections.emptyMap(); |
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155 } else { |
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156 EnvHelp.checkAttributes(environment); |
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157 this.env = Collections.unmodifiableMap(environment); |
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158 } |
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159 } |
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160 |
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161 /** |
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162 * <p>Constructs an {@code RMIConnector} that will connect |
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163 * the RMI connector server with the given address.</p> |
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164 * |
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165 * <p>The address can refer directly to the connector server, |
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166 * using the following syntax:</p> |
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167 * |
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168 * <pre> |
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169 * service:jmx:rmi://<em>[host[:port]]</em>/stub/<em>encoded-stub</em> |
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170 * </pre> |
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171 * |
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172 * <p>(Here, the square brackets {@code []} are not part of the |
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173 * address but indicate that the host and port are optional.)</p> |
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174 * |
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175 * <p>The address can instead indicate where to find an RMI stub |
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176 * through JNDI, using the following syntax:</p> |
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177 * |
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178 * <pre> |
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179 * service:jmx:rmi://<em>[host[:port]]</em>/jndi/<em>jndi-name</em> |
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180 * </pre> |
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181 * |
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182 * <p>An implementation may also recognize additional address |
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183 * syntaxes, for example:</p> |
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184 * |
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185 * <pre> |
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186 * service:jmx:iiop://<em>[host[:port]]</em>/stub/<em>encoded-stub</em> |
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187 * </pre> |
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188 * |
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189 * @param url the address of the RMI connector server. |
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190 * |
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191 * @param environment additional attributes specifying how to make |
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192 * the connection. For JNDI-based addresses, these attributes can |
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193 * usefully include JNDI attributes recognized by {@link |
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194 * InitialContext#InitialContext(Hashtable) InitialContext}. This |
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195 * parameter can be null, which is equivalent to an empty Map. |
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196 * |
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197 * @exception IllegalArgumentException if {@code url} |
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198 * is null. |
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199 */ |
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200 public RMIConnector(JMXServiceURL url, Map<String,?> environment) { |
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201 this(null, url, environment); |
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202 } |
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203 |
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204 /** |
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205 * <p>Constructs an {@code RMIConnector} using the given RMI stub. |
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206 * |
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207 * @param rmiServer an RMI stub representing the RMI connector server. |
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208 * @param environment additional attributes specifying how to make |
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209 * the connection. This parameter can be null, which is |
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210 * equivalent to an empty Map. |
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211 * |
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212 * @exception IllegalArgumentException if {@code rmiServer} |
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213 * is null. |
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214 */ |
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215 public RMIConnector(RMIServer rmiServer, Map<String,?> environment) { |
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216 this(rmiServer, null, environment); |
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217 } |
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218 |
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219 /** |
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220 * <p>Returns a string representation of this object. In general, |
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221 * the {@code toString} method returns a string that |
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222 * "textually represents" this object. The result should be a |
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223 * concise but informative representation that is easy for a |
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224 * person to read.</p> |
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225 * |
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226 * @return a String representation of this object. |
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227 **/ |
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228 @Override |
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229 public String toString() { |
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230 final StringBuilder b = new StringBuilder(this.getClass().getName()); |
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231 b.append(":"); |
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232 if (rmiServer != null) { |
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233 b.append(" rmiServer=").append(rmiServer.toString()); |
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234 } |
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235 if (jmxServiceURL != null) { |
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236 if (rmiServer!=null) b.append(","); |
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237 b.append(" jmxServiceURL=").append(jmxServiceURL.toString()); |
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238 } |
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239 return b.toString(); |
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240 } |
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241 |
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242 /** |
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243 * <p>The address of this connector.</p> |
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244 * |
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245 * @return the address of this connector, or null if it |
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246 * does not have one. |
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247 * |
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248 * @since 1.6 |
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249 */ |
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250 public JMXServiceURL getAddress() { |
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251 return jmxServiceURL; |
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252 } |
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253 |
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254 //-------------------------------------------------------------------- |
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255 // implements JMXConnector interface |
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256 //-------------------------------------------------------------------- |
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257 |
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258 /** |
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259 * @throws IOException if the connection could not be made because of a |
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260 * communication problem |
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261 */ |
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262 public void connect() throws IOException { |
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263 connect(null); |
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264 } |
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265 |
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266 /** |
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267 * @throws IOException if the connection could not be made because of a |
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268 * communication problem |
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269 */ |
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270 public synchronized void connect(Map<String,?> environment) |
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271 throws IOException { |
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272 final boolean tracing = logger.traceOn(); |
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273 String idstr = (tracing?"["+this.toString()+"]":null); |
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274 |
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275 if (terminated) { |
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276 logger.trace("connect",idstr + " already closed."); |
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277 throw new IOException("Connector closed"); |
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278 } |
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279 if (connected) { |
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280 logger.trace("connect",idstr + " already connected."); |
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281 return; |
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282 } |
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283 |
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284 try { |
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285 if (tracing) logger.trace("connect",idstr + " connecting..."); |
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286 |
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287 final Map<String, Object> usemap = |
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288 new HashMap<String, Object>((this.env==null) ? |
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289 Collections.<String, Object>emptyMap() : this.env); |
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290 |
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291 |
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292 if (environment != null) { |
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293 EnvHelp.checkAttributes(environment); |
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294 usemap.putAll(environment); |
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295 } |
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296 |
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297 // Get RMIServer stub from directory or URL encoding if needed. |
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298 if (tracing) logger.trace("connect",idstr + " finding stub..."); |
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299 RMIServer stub = (rmiServer!=null)?rmiServer: |
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300 findRMIServer(jmxServiceURL, usemap); |
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301 |
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302 // Check for secure RMIServer stub if the corresponding |
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303 // client-side environment property is set to "true". |
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304 // |
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305 String stringBoolean = (String) usemap.get("jmx.remote.x.check.stub"); |
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306 boolean checkStub = EnvHelp.computeBooleanFromString(stringBoolean); |
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307 |
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308 if (checkStub) checkStub(stub, rmiServerImplStubClass); |
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309 |
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310 if (tracing) logger.trace("connect",idstr + " connecting stub..."); |
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311 idstr = (tracing?"["+this.toString()+"]":null); |
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312 |
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313 // Calling newClient on the RMIServer stub. |
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314 if (tracing) |
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315 logger.trace("connect",idstr + " getting connection..."); |
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316 Object credentials = usemap.get(CREDENTIALS); |
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317 |
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318 try { |
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319 connection = getConnection(stub, credentials, checkStub); |
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320 } catch (java.rmi.RemoteException re) { |
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321 throw re; |
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322 } |
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323 |
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324 // Always use one of: |
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325 // ClassLoader provided in Map at connect time, |
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326 // or contextClassLoader at connect time. |
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327 if (tracing) |
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328 logger.trace("connect",idstr + " getting class loader..."); |
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329 defaultClassLoader = EnvHelp.resolveClientClassLoader(usemap); |
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330 |
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331 usemap.put(JMXConnectorFactory.DEFAULT_CLASS_LOADER, |
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332 defaultClassLoader); |
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333 |
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334 rmiNotifClient = new RMINotifClient(defaultClassLoader, usemap); |
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335 |
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336 env = usemap; |
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337 final long checkPeriod = EnvHelp.getConnectionCheckPeriod(usemap); |
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338 communicatorAdmin = new RMIClientCommunicatorAdmin(checkPeriod); |
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339 |
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340 connected = true; |
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341 |
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342 // The connectionId variable is used in doStart(), when |
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343 // reconnecting, to identify the "old" connection. |
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344 // |
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345 connectionId = getConnectionId(); |
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346 |
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347 Notification connectedNotif = |
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348 new JMXConnectionNotification(JMXConnectionNotification.OPENED, |
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349 this, |
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350 connectionId, |
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351 clientNotifSeqNo++, |
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352 "Successful connection", |
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353 null); |
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354 sendNotification(connectedNotif); |
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355 |
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356 if (tracing) logger.trace("connect",idstr + " done..."); |
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357 } catch (IOException e) { |
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358 if (tracing) |
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359 logger.trace("connect",idstr + " failed to connect: " + e); |
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360 throw e; |
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361 } catch (RuntimeException e) { |
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362 if (tracing) |
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363 logger.trace("connect",idstr + " failed to connect: " + e); |
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364 throw e; |
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365 } catch (NamingException e) { |
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366 final String msg = "Failed to retrieve RMIServer stub: " + e; |
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367 if (tracing) logger.trace("connect",idstr + " " + msg); |
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368 throw EnvHelp.initCause(new IOException(msg),e); |
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369 } |
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370 } |
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371 |
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372 public synchronized String getConnectionId() throws IOException { |
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373 if (terminated || !connected) { |
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374 if (logger.traceOn()) |
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375 logger.trace("getConnectionId","["+this.toString()+ |
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376 "] not connected."); |
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377 |
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378 throw new IOException("Not connected"); |
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379 } |
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380 |
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381 // we do a remote call to have an IOException if the connection is broken. |
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382 // see the bug 4939578 |
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383 return connection.getConnectionId(); |
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384 } |
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385 |
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386 public synchronized MBeanServerConnection getMBeanServerConnection() |
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387 throws IOException { |
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388 return getMBeanServerConnection(null); |
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389 } |
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390 |
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391 public synchronized MBeanServerConnection |
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392 getMBeanServerConnection(Subject delegationSubject) |
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393 throws IOException { |
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394 |
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395 if (terminated) { |
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396 if (logger.traceOn()) |
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397 logger.trace("getMBeanServerConnection","[" + this.toString() + |
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398 "] already closed."); |
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399 throw new IOException("Connection closed"); |
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400 } else if (!connected) { |
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401 if (logger.traceOn()) |
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402 logger.trace("getMBeanServerConnection","[" + this.toString() + |
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403 "] is not connected."); |
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404 throw new IOException("Not connected"); |
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405 } |
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406 |
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407 return getConnectionWithSubject(delegationSubject); |
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408 } |
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409 |
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410 public void |
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411 addConnectionNotificationListener(NotificationListener listener, |
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412 NotificationFilter filter, |
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413 Object handback) { |
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414 if (listener == null) |
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415 throw new NullPointerException("listener"); |
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416 connectionBroadcaster.addNotificationListener(listener, filter, |
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417 handback); |
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418 } |
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419 |
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420 public void |
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421 removeConnectionNotificationListener(NotificationListener listener) |
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422 throws ListenerNotFoundException { |
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423 if (listener == null) |
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424 throw new NullPointerException("listener"); |
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425 connectionBroadcaster.removeNotificationListener(listener); |
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426 } |
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427 |
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428 public void |
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429 removeConnectionNotificationListener(NotificationListener listener, |
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430 NotificationFilter filter, |
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431 Object handback) |
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432 throws ListenerNotFoundException { |
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433 if (listener == null) |
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434 throw new NullPointerException("listener"); |
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435 connectionBroadcaster.removeNotificationListener(listener, filter, |
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436 handback); |
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437 } |
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438 |
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439 private void sendNotification(Notification n) { |
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440 connectionBroadcaster.sendNotification(n); |
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441 } |
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442 |
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443 public synchronized void close() throws IOException { |
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444 close(false); |
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445 } |
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446 |
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447 // allows to do close after setting the flag "terminated" to true. |
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448 // It is necessary to avoid a deadlock, see 6296324 |
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449 private synchronized void close(boolean intern) throws IOException { |
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450 final boolean tracing = logger.traceOn(); |
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451 final boolean debug = logger.debugOn(); |
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452 final String idstr = (tracing?"["+this.toString()+"]":null); |
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453 |
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454 if (!intern) { |
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455 // Return if already cleanly closed. |
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456 // |
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457 if (terminated) { |
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458 if (closeException == null) { |
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459 if (tracing) logger.trace("close",idstr + " already closed."); |
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460 return; |
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461 } |
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462 } else { |
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463 terminated = true; |
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464 } |
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465 } |
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466 |
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467 if (closeException != null && tracing) { |
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468 // Already closed, but not cleanly. Attempt again. |
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469 // |
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470 if (tracing) { |
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471 logger.trace("close",idstr + " had failed: " + closeException); |
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472 logger.trace("close",idstr + " attempting to close again."); |
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473 } |
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474 } |
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475 |
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476 String savedConnectionId = null; |
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477 if (connected) { |
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478 savedConnectionId = connectionId; |
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479 } |
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480 |
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481 closeException = null; |
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482 |
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483 if (tracing) logger.trace("close",idstr + " closing."); |
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484 |
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485 if (communicatorAdmin != null) { |
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486 communicatorAdmin.terminate(); |
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487 } |
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488 |
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489 if (rmiNotifClient != null) { |
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490 try { |
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491 rmiNotifClient.terminate(); |
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492 if (tracing) logger.trace("close",idstr + |
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493 " RMI Notification client terminated."); |
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494 } catch (RuntimeException x) { |
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495 closeException = x; |
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496 if (tracing) logger.trace("close",idstr + |
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497 " Failed to terminate RMI Notification client: " + x); |
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498 if (debug) logger.debug("close",x); |
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499 } |
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500 } |
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501 |
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502 if (connection != null) { |
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503 try { |
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504 connection.close(); |
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505 if (tracing) logger.trace("close",idstr + " closed."); |
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506 } catch (NoSuchObjectException nse) { |
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507 // OK, the server maybe closed itself. |
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508 } catch (IOException e) { |
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509 closeException = e; |
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510 if (tracing) logger.trace("close",idstr + |
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511 " Failed to close RMIServer: " + e); |
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512 if (debug) logger.debug("close",e); |
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513 } |
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514 } |
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515 |
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516 // Clean up MBeanServerConnection table |
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517 // |
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518 rmbscMap.clear(); |
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519 |
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520 /* Send notification of closure. We don't do this if the user |
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521 * never called connect() on the connector, because there's no |
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522 * connection id in that case. */ |
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523 |
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524 if (savedConnectionId != null) { |
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525 Notification closedNotif = |
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526 new JMXConnectionNotification(JMXConnectionNotification.CLOSED, |
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527 this, |
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528 savedConnectionId, |
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529 clientNotifSeqNo++, |
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530 "Client has been closed", |
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531 null); |
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532 sendNotification(closedNotif); |
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533 } |
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534 |
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535 // throw exception if needed |
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536 // |
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537 if (closeException != null) { |
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538 if (tracing) logger.trace("close",idstr + " failed to close: " + |
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539 closeException); |
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540 if (closeException instanceof IOException) |
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541 throw (IOException) closeException; |
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542 if (closeException instanceof RuntimeException) |
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543 throw (RuntimeException) closeException; |
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544 final IOException x = |
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545 new IOException("Failed to close: " + closeException); |
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546 throw EnvHelp.initCause(x,closeException); |
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547 } |
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548 } |
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549 |
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550 // added for re-connection |
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551 private Integer addListenerWithSubject(ObjectName name, |
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552 MarshalledObject<NotificationFilter> filter, |
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553 Subject delegationSubject, |
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554 boolean reconnect) |
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555 throws InstanceNotFoundException, IOException { |
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556 |
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557 final boolean debug = logger.debugOn(); |
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558 if (debug) |
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559 logger.debug("addListenerWithSubject", |
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560 "(ObjectName,MarshalledObject,Subject)"); |
|
561 |
|
562 final ObjectName[] names = new ObjectName[] {name}; |
|
563 final MarshalledObject<NotificationFilter>[] filters = |
|
564 Util.cast(new MarshalledObject<?>[] {filter}); |
|
565 final Subject[] delegationSubjects = new Subject[] { |
|
566 delegationSubject |
|
567 }; |
|
568 |
|
569 final Integer[] listenerIDs = |
|
570 addListenersWithSubjects(names,filters,delegationSubjects, |
|
571 reconnect); |
|
572 |
|
573 if (debug) logger.debug("addListenerWithSubject","listenerID=" |
|
574 + listenerIDs[0]); |
|
575 return listenerIDs[0]; |
|
576 } |
|
577 |
|
578 // added for re-connection |
|
579 private Integer[] addListenersWithSubjects(ObjectName[] names, |
|
580 MarshalledObject<NotificationFilter>[] filters, |
|
581 Subject[] delegationSubjects, |
|
582 boolean reconnect) |
|
583 throws InstanceNotFoundException, IOException { |
|
584 |
|
585 final boolean debug = logger.debugOn(); |
|
586 if (debug) |
|
587 logger.debug("addListenersWithSubjects", |
|
588 "(ObjectName[],MarshalledObject[],Subject[])"); |
|
589 |
|
590 final ClassLoader old = pushDefaultClassLoader(); |
|
591 Integer[] listenerIDs = null; |
|
592 |
|
593 try { |
|
594 listenerIDs = connection.addNotificationListeners(names, |
|
595 filters, |
|
596 delegationSubjects); |
|
597 } catch (NoSuchObjectException noe) { |
|
598 // maybe reconnect |
|
599 if (reconnect) { |
|
600 communicatorAdmin.gotIOException(noe); |
|
601 |
|
602 listenerIDs = connection.addNotificationListeners(names, |
|
603 filters, |
|
604 delegationSubjects); |
|
605 } else { |
|
606 throw noe; |
|
607 } |
|
608 } catch (IOException ioe) { |
|
609 // send a failed notif if necessary |
|
610 communicatorAdmin.gotIOException(ioe); |
|
611 } finally { |
|
612 popDefaultClassLoader(old); |
|
613 } |
|
614 |
|
615 if (debug) logger.debug("addListenersWithSubjects","registered " |
|
616 + ((listenerIDs==null)?0:listenerIDs.length) |
|
617 + " listener(s)"); |
|
618 return listenerIDs; |
|
619 } |
|
620 |
|
621 //-------------------------------------------------------------------- |
|
622 // Implementation of MBeanServerConnection |
|
623 //-------------------------------------------------------------------- |
|
624 private class RemoteMBeanServerConnection implements MBeanServerConnection { |
|
625 private Subject delegationSubject; |
|
626 |
|
627 public RemoteMBeanServerConnection() { |
|
628 this(null); |
|
629 } |
|
630 |
|
631 public RemoteMBeanServerConnection(Subject delegationSubject) { |
|
632 this.delegationSubject = delegationSubject; |
|
633 } |
|
634 |
|
635 public ObjectInstance createMBean(String className, |
|
636 ObjectName name) |
|
637 throws ReflectionException, |
|
638 InstanceAlreadyExistsException, |
|
639 MBeanRegistrationException, |
|
640 MBeanException, |
|
641 NotCompliantMBeanException, |
|
642 IOException { |
|
643 if (logger.debugOn()) |
|
644 logger.debug("createMBean(String,ObjectName)", |
|
645 "className=" + className + ", name=" + |
|
646 name); |
|
647 |
|
648 final ClassLoader old = pushDefaultClassLoader(); |
|
649 try { |
|
650 return connection.createMBean(className, |
|
651 name, |
|
652 delegationSubject); |
|
653 } catch (IOException ioe) { |
|
654 communicatorAdmin.gotIOException(ioe); |
|
655 |
|
656 return connection.createMBean(className, |
|
657 name, |
|
658 delegationSubject); |
|
659 } finally { |
|
660 popDefaultClassLoader(old); |
|
661 } |
|
662 } |
|
663 |
|
664 public ObjectInstance createMBean(String className, |
|
665 ObjectName name, |
|
666 ObjectName loaderName) |
|
667 throws ReflectionException, |
|
668 InstanceAlreadyExistsException, |
|
669 MBeanRegistrationException, |
|
670 MBeanException, |
|
671 NotCompliantMBeanException, |
|
672 InstanceNotFoundException, |
|
673 IOException { |
|
674 |
|
675 if (logger.debugOn()) |
|
676 logger.debug("createMBean(String,ObjectName,ObjectName)", |
|
677 "className=" + className + ", name=" |
|
678 + name + ", loaderName=" |
|
679 + loaderName + ")"); |
|
680 |
|
681 final ClassLoader old = pushDefaultClassLoader(); |
|
682 try { |
|
683 return connection.createMBean(className, |
|
684 name, |
|
685 loaderName, |
|
686 delegationSubject); |
|
687 |
|
688 } catch (IOException ioe) { |
|
689 communicatorAdmin.gotIOException(ioe); |
|
690 |
|
691 return connection.createMBean(className, |
|
692 name, |
|
693 loaderName, |
|
694 delegationSubject); |
|
695 |
|
696 } finally { |
|
697 popDefaultClassLoader(old); |
|
698 } |
|
699 } |
|
700 |
|
701 public ObjectInstance createMBean(String className, |
|
702 ObjectName name, |
|
703 Object params[], |
|
704 String signature[]) |
|
705 throws ReflectionException, |
|
706 InstanceAlreadyExistsException, |
|
707 MBeanRegistrationException, |
|
708 MBeanException, |
|
709 NotCompliantMBeanException, |
|
710 IOException { |
|
711 if (logger.debugOn()) |
|
712 logger.debug("createMBean(String,ObjectName,Object[],String[])", |
|
713 "className=" + className + ", name=" |
|
714 + name + ", signature=" + strings(signature)); |
|
715 |
|
716 final MarshalledObject<Object[]> sParams = |
|
717 new MarshalledObject<Object[]>(params); |
|
718 final ClassLoader old = pushDefaultClassLoader(); |
|
719 try { |
|
720 return connection.createMBean(className, |
|
721 name, |
|
722 sParams, |
|
723 signature, |
|
724 delegationSubject); |
|
725 } catch (IOException ioe) { |
|
726 communicatorAdmin.gotIOException(ioe); |
|
727 |
|
728 return connection.createMBean(className, |
|
729 name, |
|
730 sParams, |
|
731 signature, |
|
732 delegationSubject); |
|
733 } finally { |
|
734 popDefaultClassLoader(old); |
|
735 } |
|
736 } |
|
737 |
|
738 public ObjectInstance createMBean(String className, |
|
739 ObjectName name, |
|
740 ObjectName loaderName, |
|
741 Object params[], |
|
742 String signature[]) |
|
743 throws ReflectionException, |
|
744 InstanceAlreadyExistsException, |
|
745 MBeanRegistrationException, |
|
746 MBeanException, |
|
747 NotCompliantMBeanException, |
|
748 InstanceNotFoundException, |
|
749 IOException { |
|
750 if (logger.debugOn()) logger.debug( |
|
751 "createMBean(String,ObjectName,ObjectName,Object[],String[])", |
|
752 "className=" + className + ", name=" + name + ", loaderName=" |
|
753 + loaderName + ", signature=" + strings(signature)); |
|
754 |
|
755 final MarshalledObject<Object[]> sParams = |
|
756 new MarshalledObject<Object[]>(params); |
|
757 final ClassLoader old = pushDefaultClassLoader(); |
|
758 try { |
|
759 return connection.createMBean(className, |
|
760 name, |
|
761 loaderName, |
|
762 sParams, |
|
763 signature, |
|
764 delegationSubject); |
|
765 } catch (IOException ioe) { |
|
766 communicatorAdmin.gotIOException(ioe); |
|
767 |
|
768 return connection.createMBean(className, |
|
769 name, |
|
770 loaderName, |
|
771 sParams, |
|
772 signature, |
|
773 delegationSubject); |
|
774 } finally { |
|
775 popDefaultClassLoader(old); |
|
776 } |
|
777 } |
|
778 |
|
779 public void unregisterMBean(ObjectName name) |
|
780 throws InstanceNotFoundException, |
|
781 MBeanRegistrationException, |
|
782 IOException { |
|
783 if (logger.debugOn()) |
|
784 logger.debug("unregisterMBean", "name=" + name); |
|
785 |
|
786 final ClassLoader old = pushDefaultClassLoader(); |
|
787 try { |
|
788 connection.unregisterMBean(name, delegationSubject); |
|
789 } catch (IOException ioe) { |
|
790 communicatorAdmin.gotIOException(ioe); |
|
791 |
|
792 connection.unregisterMBean(name, delegationSubject); |
|
793 } finally { |
|
794 popDefaultClassLoader(old); |
|
795 } |
|
796 } |
|
797 |
|
798 public ObjectInstance getObjectInstance(ObjectName name) |
|
799 throws InstanceNotFoundException, |
|
800 IOException { |
|
801 if (logger.debugOn()) |
|
802 logger.debug("getObjectInstance", "name=" + name); |
|
803 |
|
804 final ClassLoader old = pushDefaultClassLoader(); |
|
805 try { |
|
806 return connection.getObjectInstance(name, delegationSubject); |
|
807 } catch (IOException ioe) { |
|
808 communicatorAdmin.gotIOException(ioe); |
|
809 |
|
810 return connection.getObjectInstance(name, delegationSubject); |
|
811 } finally { |
|
812 popDefaultClassLoader(old); |
|
813 } |
|
814 } |
|
815 |
|
816 public Set<ObjectInstance> queryMBeans(ObjectName name, |
|
817 QueryExp query) |
|
818 throws IOException { |
|
819 if (logger.debugOn()) logger.debug("queryMBeans", |
|
820 "name=" + name + ", query=" + query); |
|
821 |
|
822 final MarshalledObject<QueryExp> sQuery = |
|
823 new MarshalledObject<QueryExp>(query); |
|
824 final ClassLoader old = pushDefaultClassLoader(); |
|
825 try { |
|
826 return connection.queryMBeans(name, sQuery, delegationSubject); |
|
827 } catch (IOException ioe) { |
|
828 communicatorAdmin.gotIOException(ioe); |
|
829 |
|
830 return connection.queryMBeans(name, sQuery, delegationSubject); |
|
831 } finally { |
|
832 popDefaultClassLoader(old); |
|
833 } |
|
834 } |
|
835 |
|
836 public Set<ObjectName> queryNames(ObjectName name, |
|
837 QueryExp query) |
|
838 throws IOException { |
|
839 if (logger.debugOn()) logger.debug("queryNames", |
|
840 "name=" + name + ", query=" + query); |
|
841 |
|
842 final MarshalledObject<QueryExp> sQuery = |
|
843 new MarshalledObject<QueryExp>(query); |
|
844 final ClassLoader old = pushDefaultClassLoader(); |
|
845 try { |
|
846 return connection.queryNames(name, sQuery, delegationSubject); |
|
847 } catch (IOException ioe) { |
|
848 communicatorAdmin.gotIOException(ioe); |
|
849 |
|
850 return connection.queryNames(name, sQuery, delegationSubject); |
|
851 } finally { |
|
852 popDefaultClassLoader(old); |
|
853 } |
|
854 } |
|
855 |
|
856 public boolean isRegistered(ObjectName name) |
|
857 throws IOException { |
|
858 if (logger.debugOn()) |
|
859 logger.debug("isRegistered", "name=" + name); |
|
860 |
|
861 final ClassLoader old = pushDefaultClassLoader(); |
|
862 try { |
|
863 return connection.isRegistered(name, delegationSubject); |
|
864 } catch (IOException ioe) { |
|
865 communicatorAdmin.gotIOException(ioe); |
|
866 |
|
867 return connection.isRegistered(name, delegationSubject); |
|
868 } finally { |
|
869 popDefaultClassLoader(old); |
|
870 } |
|
871 } |
|
872 |
|
873 public Integer getMBeanCount() |
|
874 throws IOException { |
|
875 if (logger.debugOn()) logger.debug("getMBeanCount", ""); |
|
876 |
|
877 final ClassLoader old = pushDefaultClassLoader(); |
|
878 try { |
|
879 return connection.getMBeanCount(delegationSubject); |
|
880 } catch (IOException ioe) { |
|
881 communicatorAdmin.gotIOException(ioe); |
|
882 |
|
883 return connection.getMBeanCount(delegationSubject); |
|
884 } finally { |
|
885 popDefaultClassLoader(old); |
|
886 } |
|
887 } |
|
888 |
|
889 public Object getAttribute(ObjectName name, |
|
890 String attribute) |
|
891 throws MBeanException, |
|
892 AttributeNotFoundException, |
|
893 InstanceNotFoundException, |
|
894 ReflectionException, |
|
895 IOException { |
|
896 if (logger.debugOn()) logger.debug("getAttribute", |
|
897 "name=" + name + ", attribute=" |
|
898 + attribute); |
|
899 |
|
900 final ClassLoader old = pushDefaultClassLoader(); |
|
901 try { |
|
902 return connection.getAttribute(name, |
|
903 attribute, |
|
904 delegationSubject); |
|
905 } catch (IOException ioe) { |
|
906 communicatorAdmin.gotIOException(ioe); |
|
907 |
|
908 return connection.getAttribute(name, |
|
909 attribute, |
|
910 delegationSubject); |
|
911 } finally { |
|
912 popDefaultClassLoader(old); |
|
913 } |
|
914 } |
|
915 |
|
916 public AttributeList getAttributes(ObjectName name, |
|
917 String[] attributes) |
|
918 throws InstanceNotFoundException, |
|
919 ReflectionException, |
|
920 IOException { |
|
921 if (logger.debugOn()) logger.debug("getAttributes", |
|
922 "name=" + name + ", attributes=" |
|
923 + strings(attributes)); |
|
924 |
|
925 final ClassLoader old = pushDefaultClassLoader(); |
|
926 try { |
|
927 return connection.getAttributes(name, |
|
928 attributes, |
|
929 delegationSubject); |
|
930 |
|
931 } catch (IOException ioe) { |
|
932 communicatorAdmin.gotIOException(ioe); |
|
933 |
|
934 return connection.getAttributes(name, |
|
935 attributes, |
|
936 delegationSubject); |
|
937 } finally { |
|
938 popDefaultClassLoader(old); |
|
939 } |
|
940 } |
|
941 |
|
942 |
|
943 public void setAttribute(ObjectName name, |
|
944 Attribute attribute) |
|
945 throws InstanceNotFoundException, |
|
946 AttributeNotFoundException, |
|
947 InvalidAttributeValueException, |
|
948 MBeanException, |
|
949 ReflectionException, |
|
950 IOException { |
|
951 |
|
952 if (logger.debugOn()) logger.debug("setAttribute", |
|
953 "name=" + name + ", attribute name=" |
|
954 + attribute.getName()); |
|
955 |
|
956 final MarshalledObject<Attribute> sAttribute = |
|
957 new MarshalledObject<Attribute>(attribute); |
|
958 final ClassLoader old = pushDefaultClassLoader(); |
|
959 try { |
|
960 connection.setAttribute(name, sAttribute, delegationSubject); |
|
961 } catch (IOException ioe) { |
|
962 communicatorAdmin.gotIOException(ioe); |
|
963 |
|
964 connection.setAttribute(name, sAttribute, delegationSubject); |
|
965 } finally { |
|
966 popDefaultClassLoader(old); |
|
967 } |
|
968 } |
|
969 |
|
970 public AttributeList setAttributes(ObjectName name, |
|
971 AttributeList attributes) |
|
972 throws InstanceNotFoundException, |
|
973 ReflectionException, |
|
974 IOException { |
|
975 |
|
976 if (logger.debugOn()) { |
|
977 logger.debug("setAttributes", |
|
978 "name=" + name + ", attribute names=" |
|
979 + getAttributesNames(attributes)); |
|
980 } |
|
981 |
|
982 final MarshalledObject<AttributeList> sAttributes = |
|
983 new MarshalledObject<AttributeList>(attributes); |
|
984 final ClassLoader old = pushDefaultClassLoader(); |
|
985 try { |
|
986 return connection.setAttributes(name, |
|
987 sAttributes, |
|
988 delegationSubject); |
|
989 } catch (IOException ioe) { |
|
990 communicatorAdmin.gotIOException(ioe); |
|
991 |
|
992 return connection.setAttributes(name, |
|
993 sAttributes, |
|
994 delegationSubject); |
|
995 } finally { |
|
996 popDefaultClassLoader(old); |
|
997 } |
|
998 } |
|
999 |
|
1000 |
|
1001 public Object invoke(ObjectName name, |
|
1002 String operationName, |
|
1003 Object params[], |
|
1004 String signature[]) |
|
1005 throws InstanceNotFoundException, |
|
1006 MBeanException, |
|
1007 ReflectionException, |
|
1008 IOException { |
|
1009 |
|
1010 if (logger.debugOn()) logger.debug("invoke", |
|
1011 "name=" + name |
|
1012 + ", operationName=" + operationName |
|
1013 + ", signature=" + strings(signature)); |
|
1014 |
|
1015 final MarshalledObject<Object[]> sParams = |
|
1016 new MarshalledObject<Object[]>(params); |
|
1017 final ClassLoader old = pushDefaultClassLoader(); |
|
1018 try { |
|
1019 return connection.invoke(name, |
|
1020 operationName, |
|
1021 sParams, |
|
1022 signature, |
|
1023 delegationSubject); |
|
1024 } catch (IOException ioe) { |
|
1025 communicatorAdmin.gotIOException(ioe); |
|
1026 |
|
1027 return connection.invoke(name, |
|
1028 operationName, |
|
1029 sParams, |
|
1030 signature, |
|
1031 delegationSubject); |
|
1032 } finally { |
|
1033 popDefaultClassLoader(old); |
|
1034 } |
|
1035 } |
|
1036 |
|
1037 |
|
1038 public String getDefaultDomain() |
|
1039 throws IOException { |
|
1040 if (logger.debugOn()) logger.debug("getDefaultDomain", ""); |
|
1041 |
|
1042 final ClassLoader old = pushDefaultClassLoader(); |
|
1043 try { |
|
1044 return connection.getDefaultDomain(delegationSubject); |
|
1045 } catch (IOException ioe) { |
|
1046 communicatorAdmin.gotIOException(ioe); |
|
1047 |
|
1048 return connection.getDefaultDomain(delegationSubject); |
|
1049 } finally { |
|
1050 popDefaultClassLoader(old); |
|
1051 } |
|
1052 } |
|
1053 |
|
1054 public String[] getDomains() throws IOException { |
|
1055 if (logger.debugOn()) logger.debug("getDomains", ""); |
|
1056 |
|
1057 final ClassLoader old = pushDefaultClassLoader(); |
|
1058 try { |
|
1059 return connection.getDomains(delegationSubject); |
|
1060 } catch (IOException ioe) { |
|
1061 communicatorAdmin.gotIOException(ioe); |
|
1062 |
|
1063 return connection.getDomains(delegationSubject); |
|
1064 } finally { |
|
1065 popDefaultClassLoader(old); |
|
1066 } |
|
1067 } |
|
1068 |
|
1069 public MBeanInfo getMBeanInfo(ObjectName name) |
|
1070 throws InstanceNotFoundException, |
|
1071 IntrospectionException, |
|
1072 ReflectionException, |
|
1073 IOException { |
|
1074 |
|
1075 if (logger.debugOn()) logger.debug("getMBeanInfo", "name=" + name); |
|
1076 final ClassLoader old = pushDefaultClassLoader(); |
|
1077 try { |
|
1078 return connection.getMBeanInfo(name, delegationSubject); |
|
1079 } catch (IOException ioe) { |
|
1080 communicatorAdmin.gotIOException(ioe); |
|
1081 |
|
1082 return connection.getMBeanInfo(name, delegationSubject); |
|
1083 } finally { |
|
1084 popDefaultClassLoader(old); |
|
1085 } |
|
1086 } |
|
1087 |
|
1088 |
|
1089 public boolean isInstanceOf(ObjectName name, |
|
1090 String className) |
|
1091 throws InstanceNotFoundException, |
|
1092 IOException { |
|
1093 if (logger.debugOn()) |
|
1094 logger.debug("isInstanceOf", "name=" + name + |
|
1095 ", className=" + className); |
|
1096 |
|
1097 final ClassLoader old = pushDefaultClassLoader(); |
|
1098 try { |
|
1099 return connection.isInstanceOf(name, |
|
1100 className, |
|
1101 delegationSubject); |
|
1102 } catch (IOException ioe) { |
|
1103 communicatorAdmin.gotIOException(ioe); |
|
1104 |
|
1105 return connection.isInstanceOf(name, |
|
1106 className, |
|
1107 delegationSubject); |
|
1108 } finally { |
|
1109 popDefaultClassLoader(old); |
|
1110 } |
|
1111 } |
|
1112 |
|
1113 public void addNotificationListener(ObjectName name, |
|
1114 ObjectName listener, |
|
1115 NotificationFilter filter, |
|
1116 Object handback) |
|
1117 throws InstanceNotFoundException, |
|
1118 IOException { |
|
1119 |
|
1120 if (logger.debugOn()) |
|
1121 logger.debug("addNotificationListener" + |
|
1122 "(ObjectName,ObjectName,NotificationFilter,Object)", |
|
1123 "name=" + name + ", listener=" + listener |
|
1124 + ", filter=" + filter + ", handback=" + handback); |
|
1125 |
|
1126 final MarshalledObject<NotificationFilter> sFilter = |
|
1127 new MarshalledObject<NotificationFilter>(filter); |
|
1128 final MarshalledObject<Object> sHandback = |
|
1129 new MarshalledObject<Object>(handback); |
|
1130 final ClassLoader old = pushDefaultClassLoader(); |
|
1131 try { |
|
1132 connection.addNotificationListener(name, |
|
1133 listener, |
|
1134 sFilter, |
|
1135 sHandback, |
|
1136 delegationSubject); |
|
1137 } catch (IOException ioe) { |
|
1138 communicatorAdmin.gotIOException(ioe); |
|
1139 |
|
1140 connection.addNotificationListener(name, |
|
1141 listener, |
|
1142 sFilter, |
|
1143 sHandback, |
|
1144 delegationSubject); |
|
1145 } finally { |
|
1146 popDefaultClassLoader(old); |
|
1147 } |
|
1148 } |
|
1149 |
|
1150 public void removeNotificationListener(ObjectName name, |
|
1151 ObjectName listener) |
|
1152 throws InstanceNotFoundException, |
|
1153 ListenerNotFoundException, |
|
1154 IOException { |
|
1155 |
|
1156 if (logger.debugOn()) logger.debug("removeNotificationListener" + |
|
1157 "(ObjectName,ObjectName)", |
|
1158 "name=" + name |
|
1159 + ", listener=" + listener); |
|
1160 |
|
1161 final ClassLoader old = pushDefaultClassLoader(); |
|
1162 try { |
|
1163 connection.removeNotificationListener(name, |
|
1164 listener, |
|
1165 delegationSubject); |
|
1166 } catch (IOException ioe) { |
|
1167 communicatorAdmin.gotIOException(ioe); |
|
1168 |
|
1169 connection.removeNotificationListener(name, |
|
1170 listener, |
|
1171 delegationSubject); |
|
1172 } finally { |
|
1173 popDefaultClassLoader(old); |
|
1174 } |
|
1175 } |
|
1176 |
|
1177 public void removeNotificationListener(ObjectName name, |
|
1178 ObjectName listener, |
|
1179 NotificationFilter filter, |
|
1180 Object handback) |
|
1181 throws InstanceNotFoundException, |
|
1182 ListenerNotFoundException, |
|
1183 IOException { |
|
1184 if (logger.debugOn()) |
|
1185 logger.debug("removeNotificationListener" + |
|
1186 "(ObjectName,ObjectName,NotificationFilter,Object)", |
|
1187 "name=" + name |
|
1188 + ", listener=" + listener |
|
1189 + ", filter=" + filter |
|
1190 + ", handback=" + handback); |
|
1191 |
|
1192 final MarshalledObject<NotificationFilter> sFilter = |
|
1193 new MarshalledObject<NotificationFilter>(filter); |
|
1194 final MarshalledObject<Object> sHandback = |
|
1195 new MarshalledObject<Object>(handback); |
|
1196 final ClassLoader old = pushDefaultClassLoader(); |
|
1197 try { |
|
1198 connection.removeNotificationListener(name, |
|
1199 listener, |
|
1200 sFilter, |
|
1201 sHandback, |
|
1202 delegationSubject); |
|
1203 } catch (IOException ioe) { |
|
1204 communicatorAdmin.gotIOException(ioe); |
|
1205 |
|
1206 connection.removeNotificationListener(name, |
|
1207 listener, |
|
1208 sFilter, |
|
1209 sHandback, |
|
1210 delegationSubject); |
|
1211 } finally { |
|
1212 popDefaultClassLoader(old); |
|
1213 } |
|
1214 } |
|
1215 |
|
1216 // Specific Notification Handle ---------------------------------- |
|
1217 |
|
1218 public void addNotificationListener(ObjectName name, |
|
1219 NotificationListener listener, |
|
1220 NotificationFilter filter, |
|
1221 Object handback) |
|
1222 throws InstanceNotFoundException, |
|
1223 IOException { |
|
1224 |
|
1225 final boolean debug = logger.debugOn(); |
|
1226 |
|
1227 if (debug) |
|
1228 logger.debug("addNotificationListener" + |
|
1229 "(ObjectName,NotificationListener,"+ |
|
1230 "NotificationFilter,Object)", |
|
1231 "name=" + name |
|
1232 + ", listener=" + listener |
|
1233 + ", filter=" + filter |
|
1234 + ", handback=" + handback); |
|
1235 |
|
1236 final Integer listenerID = |
|
1237 addListenerWithSubject(name, |
|
1238 new MarshalledObject<NotificationFilter>(filter), |
|
1239 delegationSubject,true); |
|
1240 rmiNotifClient.addNotificationListener(listenerID, name, listener, |
|
1241 filter, handback, |
|
1242 delegationSubject); |
|
1243 } |
|
1244 |
|
1245 public void removeNotificationListener(ObjectName name, |
|
1246 NotificationListener listener) |
|
1247 throws InstanceNotFoundException, |
|
1248 ListenerNotFoundException, |
|
1249 IOException { |
|
1250 |
|
1251 final boolean debug = logger.debugOn(); |
|
1252 |
|
1253 if (debug) logger.debug("removeNotificationListener"+ |
|
1254 "(ObjectName,NotificationListener)", |
|
1255 "name=" + name |
|
1256 + ", listener=" + listener); |
|
1257 |
|
1258 final Integer[] ret = |
|
1259 rmiNotifClient.removeNotificationListener(name, listener); |
|
1260 |
|
1261 if (debug) logger.debug("removeNotificationListener", |
|
1262 "listenerIDs=" + objects(ret)); |
|
1263 |
|
1264 final ClassLoader old = pushDefaultClassLoader(); |
|
1265 |
|
1266 try { |
|
1267 connection.removeNotificationListeners(name, |
|
1268 ret, |
|
1269 delegationSubject); |
|
1270 } catch (IOException ioe) { |
|
1271 communicatorAdmin.gotIOException(ioe); |
|
1272 |
|
1273 connection.removeNotificationListeners(name, |
|
1274 ret, |
|
1275 delegationSubject); |
|
1276 } finally { |
|
1277 popDefaultClassLoader(old); |
|
1278 } |
|
1279 |
|
1280 } |
|
1281 |
|
1282 public void removeNotificationListener(ObjectName name, |
|
1283 NotificationListener listener, |
|
1284 NotificationFilter filter, |
|
1285 Object handback) |
|
1286 throws InstanceNotFoundException, |
|
1287 ListenerNotFoundException, |
|
1288 IOException { |
|
1289 final boolean debug = logger.debugOn(); |
|
1290 |
|
1291 if (debug) |
|
1292 logger.debug("removeNotificationListener"+ |
|
1293 "(ObjectName,NotificationListener,"+ |
|
1294 "NotificationFilter,Object)", |
|
1295 "name=" + name |
|
1296 + ", listener=" + listener |
|
1297 + ", filter=" + filter |
|
1298 + ", handback=" + handback); |
|
1299 |
|
1300 final Integer ret = |
|
1301 rmiNotifClient.removeNotificationListener(name, listener, |
|
1302 filter, handback); |
|
1303 |
|
1304 if (debug) logger.debug("removeNotificationListener", |
|
1305 "listenerID=" + ret); |
|
1306 |
|
1307 final ClassLoader old = pushDefaultClassLoader(); |
|
1308 try { |
|
1309 connection.removeNotificationListeners(name, |
|
1310 new Integer[] {ret}, |
|
1311 delegationSubject); |
|
1312 } catch (IOException ioe) { |
|
1313 communicatorAdmin.gotIOException(ioe); |
|
1314 |
|
1315 connection.removeNotificationListeners(name, |
|
1316 new Integer[] {ret}, |
|
1317 delegationSubject); |
|
1318 } finally { |
|
1319 popDefaultClassLoader(old); |
|
1320 } |
|
1321 |
|
1322 } |
|
1323 } |
|
1324 |
|
1325 //-------------------------------------------------------------------- |
|
1326 private class RMINotifClient extends ClientNotifForwarder { |
|
1327 public RMINotifClient(ClassLoader cl, Map<String, ?> env) { |
|
1328 super(cl, env); |
|
1329 } |
|
1330 |
|
1331 protected NotificationResult fetchNotifs(long clientSequenceNumber, |
|
1332 int maxNotifications, |
|
1333 long timeout) |
|
1334 throws IOException, ClassNotFoundException { |
|
1335 |
|
1336 boolean retried = false; |
|
1337 while (true) { // used for a successful re-connection |
|
1338 // or a transient network problem |
|
1339 try { |
|
1340 return connection.fetchNotifications(clientSequenceNumber, |
|
1341 maxNotifications, |
|
1342 timeout); // return normally |
|
1343 } catch (IOException ioe) { |
|
1344 // Examine the chain of exceptions to determine whether this |
|
1345 // is a deserialization issue. If so - we propagate the |
|
1346 // appropriate exception to the caller, who will then |
|
1347 // proceed with fetching notifications one by one |
|
1348 rethrowDeserializationException(ioe); |
|
1349 |
|
1350 try { |
|
1351 communicatorAdmin.gotIOException(ioe); |
|
1352 // reconnection OK, back to "while" to do again |
|
1353 } catch (IOException ee) { |
|
1354 boolean toClose = false; |
|
1355 |
|
1356 synchronized (this) { |
|
1357 if (terminated) { |
|
1358 // the connection is closed. |
|
1359 throw ioe; |
|
1360 } else if (retried) { |
|
1361 toClose = true; |
|
1362 } |
|
1363 } |
|
1364 |
|
1365 if (toClose) { |
|
1366 // JDK-8049303 |
|
1367 // We received an IOException - but the communicatorAdmin |
|
1368 // did not close the connection - possibly because |
|
1369 // the original exception was raised by a transient network |
|
1370 // problem? |
|
1371 // We already know that this exception is not due to a deserialization |
|
1372 // issue as we already took care of that before involving the |
|
1373 // communicatorAdmin. Moreover - we already made one retry attempt |
|
1374 // at fetching the same batch of notifications - and the |
|
1375 // problem persisted. |
|
1376 // Since trying again doesn't seem to solve the issue, we will now |
|
1377 // close the connection. Doing otherwise might cause the |
|
1378 // NotifFetcher thread to die silently. |
|
1379 final Notification failedNotif = |
|
1380 new JMXConnectionNotification( |
|
1381 JMXConnectionNotification.FAILED, |
|
1382 this, |
|
1383 connectionId, |
|
1384 clientNotifSeqNo++, |
|
1385 "Failed to communicate with the server: " + ioe.toString(), |
|
1386 ioe); |
|
1387 |
|
1388 sendNotification(failedNotif); |
|
1389 |
|
1390 try { |
|
1391 close(true); |
|
1392 } catch (Exception e) { |
|
1393 // OK. |
|
1394 // We are closing |
|
1395 } |
|
1396 throw ioe; // the connection is closed here. |
|
1397 } else { |
|
1398 // JDK-8049303 possible transient network problem, |
|
1399 // let's try one more time |
|
1400 retried = true; |
|
1401 } |
|
1402 } |
|
1403 } |
|
1404 } |
|
1405 } |
|
1406 |
|
1407 private void rethrowDeserializationException(IOException ioe) |
|
1408 throws ClassNotFoundException, IOException { |
|
1409 // specially treating for an UnmarshalException |
|
1410 if (ioe instanceof UnmarshalException) { |
|
1411 NotSerializableException nse = new NotSerializableException(); |
|
1412 nse.initCause(ioe); |
|
1413 throw nse; // the fix of 6937053 made ClientNotifForwarder.fetchNotifs |
|
1414 // fetch one by one with UnmarshalException |
|
1415 } |
|
1416 |
|
1417 // Not serialization problem, return. |
|
1418 } |
|
1419 |
|
1420 protected Integer addListenerForMBeanRemovedNotif() |
|
1421 throws IOException, InstanceNotFoundException { |
|
1422 NotificationFilterSupport clientFilter = |
|
1423 new NotificationFilterSupport(); |
|
1424 clientFilter.enableType( |
|
1425 MBeanServerNotification.UNREGISTRATION_NOTIFICATION); |
|
1426 MarshalledObject<NotificationFilter> sFilter = |
|
1427 new MarshalledObject<NotificationFilter>(clientFilter); |
|
1428 |
|
1429 Integer[] listenerIDs; |
|
1430 final ObjectName[] names = |
|
1431 new ObjectName[] {MBeanServerDelegate.DELEGATE_NAME}; |
|
1432 final MarshalledObject<NotificationFilter>[] filters = |
|
1433 Util.cast(new MarshalledObject<?>[] {sFilter}); |
|
1434 final Subject[] subjects = new Subject[] {null}; |
|
1435 try { |
|
1436 listenerIDs = |
|
1437 connection.addNotificationListeners(names, |
|
1438 filters, |
|
1439 subjects); |
|
1440 |
|
1441 } catch (IOException ioe) { |
|
1442 communicatorAdmin.gotIOException(ioe); |
|
1443 |
|
1444 listenerIDs = |
|
1445 connection.addNotificationListeners(names, |
|
1446 filters, |
|
1447 subjects); |
|
1448 } |
|
1449 return listenerIDs[0]; |
|
1450 } |
|
1451 |
|
1452 protected void removeListenerForMBeanRemovedNotif(Integer id) |
|
1453 throws IOException, InstanceNotFoundException, |
|
1454 ListenerNotFoundException { |
|
1455 try { |
|
1456 connection.removeNotificationListeners( |
|
1457 MBeanServerDelegate.DELEGATE_NAME, |
|
1458 new Integer[] {id}, |
|
1459 null); |
|
1460 } catch (IOException ioe) { |
|
1461 communicatorAdmin.gotIOException(ioe); |
|
1462 |
|
1463 connection.removeNotificationListeners( |
|
1464 MBeanServerDelegate.DELEGATE_NAME, |
|
1465 new Integer[] {id}, |
|
1466 null); |
|
1467 } |
|
1468 |
|
1469 } |
|
1470 |
|
1471 protected void lostNotifs(String message, long number) { |
|
1472 final String notifType = JMXConnectionNotification.NOTIFS_LOST; |
|
1473 |
|
1474 final JMXConnectionNotification n = |
|
1475 new JMXConnectionNotification(notifType, |
|
1476 RMIConnector.this, |
|
1477 connectionId, |
|
1478 clientNotifCounter++, |
|
1479 message, |
|
1480 Long.valueOf(number)); |
|
1481 sendNotification(n); |
|
1482 } |
|
1483 } |
|
1484 |
|
1485 private class RMIClientCommunicatorAdmin extends ClientCommunicatorAdmin { |
|
1486 public RMIClientCommunicatorAdmin(long period) { |
|
1487 super(period); |
|
1488 } |
|
1489 |
|
1490 @Override |
|
1491 public void gotIOException(IOException ioe) throws IOException { |
|
1492 if (ioe instanceof NoSuchObjectException) { |
|
1493 // need to restart |
|
1494 super.gotIOException(ioe); |
|
1495 |
|
1496 return; |
|
1497 } |
|
1498 |
|
1499 // check if the connection is broken |
|
1500 try { |
|
1501 connection.getDefaultDomain(null); |
|
1502 } catch (IOException ioexc) { |
|
1503 boolean toClose = false; |
|
1504 |
|
1505 synchronized(this) { |
|
1506 if (!terminated) { |
|
1507 terminated = true; |
|
1508 |
|
1509 toClose = true; |
|
1510 } |
|
1511 } |
|
1512 |
|
1513 if (toClose) { |
|
1514 // we should close the connection, |
|
1515 // but send a failed notif at first |
|
1516 final Notification failedNotif = |
|
1517 new JMXConnectionNotification( |
|
1518 JMXConnectionNotification.FAILED, |
|
1519 this, |
|
1520 connectionId, |
|
1521 clientNotifSeqNo++, |
|
1522 "Failed to communicate with the server: "+ioe.toString(), |
|
1523 ioe); |
|
1524 |
|
1525 sendNotification(failedNotif); |
|
1526 |
|
1527 try { |
|
1528 close(true); |
|
1529 } catch (Exception e) { |
|
1530 // OK. |
|
1531 // We are closing |
|
1532 } |
|
1533 } |
|
1534 } |
|
1535 |
|
1536 // forward the exception |
|
1537 if (ioe instanceof ServerException) { |
|
1538 /* Need to unwrap the exception. |
|
1539 Some user-thrown exception at server side will be wrapped by |
|
1540 rmi into a ServerException. |
|
1541 For example, a RMIConnnectorServer will wrap a |
|
1542 ClassNotFoundException into a UnmarshalException, and rmi |
|
1543 will throw a ServerException at client side which wraps this |
|
1544 UnmarshalException. |
|
1545 No failed notif here. |
|
1546 */ |
|
1547 Throwable tt = ((ServerException)ioe).detail; |
|
1548 |
|
1549 if (tt instanceof IOException) { |
|
1550 throw (IOException)tt; |
|
1551 } else if (tt instanceof RuntimeException) { |
|
1552 throw (RuntimeException)tt; |
|
1553 } |
|
1554 } |
|
1555 |
|
1556 throw ioe; |
|
1557 } |
|
1558 |
|
1559 public void reconnectNotificationListeners(ClientListenerInfo[] old) throws IOException { |
|
1560 final int len = old.length; |
|
1561 int i; |
|
1562 |
|
1563 ClientListenerInfo[] clis = new ClientListenerInfo[len]; |
|
1564 |
|
1565 final Subject[] subjects = new Subject[len]; |
|
1566 final ObjectName[] names = new ObjectName[len]; |
|
1567 final NotificationListener[] listeners = new NotificationListener[len]; |
|
1568 final NotificationFilter[] filters = new NotificationFilter[len]; |
|
1569 final MarshalledObject<NotificationFilter>[] mFilters = |
|
1570 Util.cast(new MarshalledObject<?>[len]); |
|
1571 final Object[] handbacks = new Object[len]; |
|
1572 |
|
1573 for (i=0;i<len;i++) { |
|
1574 subjects[i] = old[i].getDelegationSubject(); |
|
1575 names[i] = old[i].getObjectName(); |
|
1576 listeners[i] = old[i].getListener(); |
|
1577 filters[i] = old[i].getNotificationFilter(); |
|
1578 mFilters[i] = new MarshalledObject<NotificationFilter>(filters[i]); |
|
1579 handbacks[i] = old[i].getHandback(); |
|
1580 } |
|
1581 |
|
1582 try { |
|
1583 Integer[] ids = addListenersWithSubjects(names,mFilters,subjects,false); |
|
1584 |
|
1585 for (i=0;i<len;i++) { |
|
1586 clis[i] = new ClientListenerInfo(ids[i], |
|
1587 names[i], |
|
1588 listeners[i], |
|
1589 filters[i], |
|
1590 handbacks[i], |
|
1591 subjects[i]); |
|
1592 } |
|
1593 |
|
1594 rmiNotifClient.postReconnection(clis); |
|
1595 |
|
1596 return; |
|
1597 } catch (InstanceNotFoundException infe) { |
|
1598 // OK, we will do one by one |
|
1599 } |
|
1600 |
|
1601 int j = 0; |
|
1602 for (i=0;i<len;i++) { |
|
1603 try { |
|
1604 Integer id = addListenerWithSubject(names[i], |
|
1605 new MarshalledObject<NotificationFilter>(filters[i]), |
|
1606 subjects[i], |
|
1607 false); |
|
1608 |
|
1609 clis[j++] = new ClientListenerInfo(id, |
|
1610 names[i], |
|
1611 listeners[i], |
|
1612 filters[i], |
|
1613 handbacks[i], |
|
1614 subjects[i]); |
|
1615 } catch (InstanceNotFoundException infe) { |
|
1616 logger.warning("reconnectNotificationListeners", |
|
1617 "Can't reconnect listener for " + |
|
1618 names[i]); |
|
1619 } |
|
1620 } |
|
1621 |
|
1622 if (j != len) { |
|
1623 ClientListenerInfo[] tmp = clis; |
|
1624 clis = new ClientListenerInfo[j]; |
|
1625 System.arraycopy(tmp, 0, clis, 0, j); |
|
1626 } |
|
1627 |
|
1628 rmiNotifClient.postReconnection(clis); |
|
1629 } |
|
1630 |
|
1631 protected void checkConnection() throws IOException { |
|
1632 if (logger.debugOn()) |
|
1633 logger.debug("RMIClientCommunicatorAdmin-checkConnection", |
|
1634 "Calling the method getDefaultDomain."); |
|
1635 |
|
1636 connection.getDefaultDomain(null); |
|
1637 } |
|
1638 |
|
1639 protected void doStart() throws IOException { |
|
1640 // Get RMIServer stub from directory or URL encoding if needed. |
|
1641 RMIServer stub; |
|
1642 try { |
|
1643 stub = (rmiServer!=null)?rmiServer: |
|
1644 findRMIServer(jmxServiceURL, env); |
|
1645 } catch (NamingException ne) { |
|
1646 throw new IOException("Failed to get a RMI stub: "+ne); |
|
1647 } |
|
1648 |
|
1649 // Calling newClient on the RMIServer stub. |
|
1650 Object credentials = env.get(CREDENTIALS); |
|
1651 connection = stub.newClient(credentials); |
|
1652 |
|
1653 // notif issues |
|
1654 final ClientListenerInfo[] old = rmiNotifClient.preReconnection(); |
|
1655 |
|
1656 reconnectNotificationListeners(old); |
|
1657 |
|
1658 connectionId = getConnectionId(); |
|
1659 |
|
1660 Notification reconnectedNotif = |
|
1661 new JMXConnectionNotification(JMXConnectionNotification.OPENED, |
|
1662 this, |
|
1663 connectionId, |
|
1664 clientNotifSeqNo++, |
|
1665 "Reconnected to server", |
|
1666 null); |
|
1667 sendNotification(reconnectedNotif); |
|
1668 |
|
1669 } |
|
1670 |
|
1671 protected void doStop() { |
|
1672 try { |
|
1673 close(); |
|
1674 } catch (IOException ioe) { |
|
1675 logger.warning("RMIClientCommunicatorAdmin-doStop", |
|
1676 "Failed to call the method close():" + ioe); |
|
1677 logger.debug("RMIClientCommunicatorAdmin-doStop",ioe); |
|
1678 } |
|
1679 } |
|
1680 } |
|
1681 |
|
1682 //-------------------------------------------------------------------- |
|
1683 // Private stuff - Serialization |
|
1684 //-------------------------------------------------------------------- |
|
1685 /** |
|
1686 * Read RMIConnector fields from an {@link java.io.ObjectInputStream |
|
1687 * ObjectInputStream}. |
|
1688 * Calls {@code s.defaultReadObject()} and then initializes |
|
1689 * all transient variables that need initializing. |
|
1690 * @param s The ObjectInputStream to read from. |
|
1691 * @exception InvalidObjectException if none of <var>rmiServer</var> stub |
|
1692 * or <var>jmxServiceURL</var> are set. |
|
1693 * @see #RMIConnector(JMXServiceURL,Map) |
|
1694 * @see #RMIConnector(RMIServer,Map) |
|
1695 **/ |
|
1696 private void readObject(java.io.ObjectInputStream s) |
|
1697 throws IOException, ClassNotFoundException { |
|
1698 s.defaultReadObject(); |
|
1699 |
|
1700 if (rmiServer == null && jmxServiceURL == null) throw new |
|
1701 InvalidObjectException("rmiServer and jmxServiceURL both null"); |
|
1702 |
|
1703 initTransients(); |
|
1704 } |
|
1705 |
|
1706 /** |
|
1707 * Writes the RMIConnector fields to an {@link java.io.ObjectOutputStream |
|
1708 * ObjectOutputStream}. |
|
1709 * <p>Connects the underlying RMIServer stub to an ORB, if needed, |
|
1710 * before serializing it. This is done using the environment |
|
1711 * map that was provided to the constructor, if any, and as documented |
|
1712 * in {@link javax.management.remote.rmi}.</p> |
|
1713 * <p>This method then calls {@code s.defaultWriteObject()}. |
|
1714 * Usually, <var>rmiServer</var> is null if this object |
|
1715 * was constructed with a JMXServiceURL, and <var>jmxServiceURL</var> |
|
1716 * is null if this object is constructed with a RMIServer stub. |
|
1717 * <p>Note that the environment Map is not serialized, since the objects |
|
1718 * it contains are assumed to be contextual and relevant only |
|
1719 * with respect to the local environment (class loader, ORB, etc...).</p> |
|
1720 * <p>After an RMIConnector is deserialized, it is assumed that the |
|
1721 * user will call {@link #connect(Map)}, providing a new Map that |
|
1722 * can contain values which are contextually relevant to the new |
|
1723 * local environment.</p> |
|
1724 * <p>Since connection to the ORB is needed prior to serializing, and |
|
1725 * since the ORB to connect to is one of those contextual parameters, |
|
1726 * it is not recommended to re-serialize a just de-serialized object - |
|
1727 * as the de-serialized object has no map. Thus, when an RMIConnector |
|
1728 * object is needed for serialization or transmission to a remote |
|
1729 * application, it is recommended to obtain a new RMIConnector stub |
|
1730 * by calling {@link RMIConnectorServer#toJMXConnector(Map)}.</p> |
|
1731 * @param s The ObjectOutputStream to write to. |
|
1732 * @exception InvalidObjectException if none of <var>rmiServer</var> stub |
|
1733 * or <var>jmxServiceURL</var> are set. |
|
1734 * @see #RMIConnector(JMXServiceURL,Map) |
|
1735 * @see #RMIConnector(RMIServer,Map) |
|
1736 **/ |
|
1737 private void writeObject(java.io.ObjectOutputStream s) |
|
1738 throws IOException { |
|
1739 if (rmiServer == null && jmxServiceURL == null) throw new |
|
1740 InvalidObjectException("rmiServer and jmxServiceURL both null."); |
|
1741 s.defaultWriteObject(); |
|
1742 } |
|
1743 |
|
1744 // Initialization of transient variables. |
|
1745 private void initTransients() { |
|
1746 rmbscMap = new WeakHashMap<Subject, WeakReference<MBeanServerConnection>>(); |
|
1747 connected = false; |
|
1748 terminated = false; |
|
1749 |
|
1750 connectionBroadcaster = new NotificationBroadcasterSupport(); |
|
1751 } |
|
1752 |
|
1753 //-------------------------------------------------------------------- |
|
1754 // Private stuff - Check if stub can be trusted. |
|
1755 //-------------------------------------------------------------------- |
|
1756 |
|
1757 private static void checkStub(Remote stub, |
|
1758 Class<?> stubClass) { |
|
1759 |
|
1760 // Check remote stub is from the expected class. |
|
1761 // |
|
1762 if (stub.getClass() != stubClass) { |
|
1763 if (!Proxy.isProxyClass(stub.getClass())) { |
|
1764 throw new SecurityException( |
|
1765 "Expecting a " + stubClass.getName() + " stub!"); |
|
1766 } else { |
|
1767 InvocationHandler handler = Proxy.getInvocationHandler(stub); |
|
1768 if (handler.getClass() != RemoteObjectInvocationHandler.class) |
|
1769 throw new SecurityException( |
|
1770 "Expecting a dynamic proxy instance with a " + |
|
1771 RemoteObjectInvocationHandler.class.getName() + |
|
1772 " invocation handler!"); |
|
1773 else |
|
1774 stub = (Remote) handler; |
|
1775 } |
|
1776 } |
|
1777 |
|
1778 // Check RemoteRef in stub is from the expected class |
|
1779 // "sun.rmi.server.UnicastRef2". |
|
1780 // |
|
1781 RemoteRef ref = ((RemoteObject)stub).getRef(); |
|
1782 if (ref.getClass() != UnicastRef2.class) |
|
1783 throw new SecurityException( |
|
1784 "Expecting a " + UnicastRef2.class.getName() + |
|
1785 " remote reference in stub!"); |
|
1786 |
|
1787 // Check RMIClientSocketFactory in stub is from the expected class |
|
1788 // "javax.rmi.ssl.SslRMIClientSocketFactory". |
|
1789 // |
|
1790 LiveRef liveRef = ((UnicastRef2)ref).getLiveRef(); |
|
1791 RMIClientSocketFactory csf = liveRef.getClientSocketFactory(); |
|
1792 if (csf == null || csf.getClass() != SslRMIClientSocketFactory.class) |
|
1793 throw new SecurityException( |
|
1794 "Expecting a " + SslRMIClientSocketFactory.class.getName() + |
|
1795 " RMI client socket factory in stub!"); |
|
1796 } |
|
1797 |
|
1798 //-------------------------------------------------------------------- |
|
1799 // Private stuff - RMIServer creation |
|
1800 //-------------------------------------------------------------------- |
|
1801 |
|
1802 private RMIServer findRMIServer(JMXServiceURL directoryURL, |
|
1803 Map<String, Object> environment) |
|
1804 throws NamingException, IOException { |
|
1805 |
|
1806 String path = directoryURL.getURLPath(); |
|
1807 int end = path.indexOf(';'); |
|
1808 if (end < 0) end = path.length(); |
|
1809 if (path.startsWith("/jndi/")) |
|
1810 return findRMIServerJNDI(path.substring(6,end), environment); |
|
1811 else if (path.startsWith("/stub/")) |
|
1812 return findRMIServerJRMP(path.substring(6,end), environment); |
|
1813 else { |
|
1814 final String msg = "URL path must begin with /jndi/ or /stub/ " + |
|
1815 "or /ior/: " + path; |
|
1816 throw new MalformedURLException(msg); |
|
1817 } |
|
1818 } |
|
1819 |
|
1820 /** |
|
1821 * Lookup the RMIServer stub in a directory. |
|
1822 * @param jndiURL A JNDI URL indicating the location of the Stub |
|
1823 * (see {@link javax.management.remote.rmi}), e.g.: |
|
1824 * <ul><li>{@code rmi://registry-host:port/rmi-stub-name}</li> |
|
1825 * <li>or {@code ldap://ldap-host:port/java-container-dn}</li> |
|
1826 * </ul> |
|
1827 * @param env the environment Map passed to the connector. |
|
1828 * @return The retrieved RMIServer stub. |
|
1829 * @exception NamingException if the stub couldn't be found. |
|
1830 **/ |
|
1831 private RMIServer findRMIServerJNDI(String jndiURL, Map<String, ?> env) |
|
1832 throws NamingException { |
|
1833 |
|
1834 InitialContext ctx = new InitialContext(EnvHelp.mapToHashtable(env)); |
|
1835 |
|
1836 Object objref = ctx.lookup(jndiURL); |
|
1837 ctx.close(); |
|
1838 |
|
1839 return narrowJRMPServer(objref); |
|
1840 } |
|
1841 |
|
1842 private static RMIServer narrowJRMPServer(Object objref) { |
|
1843 |
|
1844 return (RMIServer) objref; |
|
1845 } |
|
1846 |
|
1847 private RMIServer findRMIServerJRMP(String base64, Map<String, ?> env) |
|
1848 throws IOException { |
|
1849 final byte[] serialized; |
|
1850 try { |
|
1851 serialized = base64ToByteArray(base64); |
|
1852 } catch (IllegalArgumentException e) { |
|
1853 throw new MalformedURLException("Bad BASE64 encoding: " + |
|
1854 e.getMessage()); |
|
1855 } |
|
1856 final ByteArrayInputStream bin = new ByteArrayInputStream(serialized); |
|
1857 |
|
1858 final ClassLoader loader = EnvHelp.resolveClientClassLoader(env); |
|
1859 final ObjectInputStream oin = |
|
1860 (loader == null) ? |
|
1861 new ObjectInputStream(bin) : |
|
1862 new ObjectInputStreamWithLoader(bin, loader); |
|
1863 final Object stub; |
|
1864 try { |
|
1865 stub = oin.readObject(); |
|
1866 } catch (ClassNotFoundException e) { |
|
1867 throw new MalformedURLException("Class not found: " + e); |
|
1868 } |
|
1869 return (RMIServer)stub; |
|
1870 } |
|
1871 |
|
1872 private static final class ObjectInputStreamWithLoader |
|
1873 extends ObjectInputStream { |
|
1874 ObjectInputStreamWithLoader(InputStream in, ClassLoader cl) |
|
1875 throws IOException, IllegalArgumentException { |
|
1876 super(in); |
|
1877 if (cl == null ) { |
|
1878 throw new IllegalArgumentException("class loader is null"); |
|
1879 } |
|
1880 this.loader = cl; |
|
1881 } |
|
1882 |
|
1883 @Override |
|
1884 protected Class<?> resolveClass(ObjectStreamClass classDesc) |
|
1885 throws IOException, ClassNotFoundException { |
|
1886 String name = classDesc.getName(); |
|
1887 ReflectUtil.checkPackageAccess(name); |
|
1888 return Class.forName(name, false, Objects.requireNonNull(loader)); |
|
1889 } |
|
1890 |
|
1891 private final ClassLoader loader; |
|
1892 } |
|
1893 |
|
1894 private MBeanServerConnection getConnectionWithSubject(Subject delegationSubject) { |
|
1895 MBeanServerConnection conn = null; |
|
1896 |
|
1897 if (delegationSubject == null) { |
|
1898 if (nullSubjectConnRef == null |
|
1899 || (conn = nullSubjectConnRef.get()) == null) { |
|
1900 conn = new RemoteMBeanServerConnection(null); |
|
1901 nullSubjectConnRef = new WeakReference<MBeanServerConnection>(conn); |
|
1902 } |
|
1903 } else { |
|
1904 WeakReference<MBeanServerConnection> wr = rmbscMap.get(delegationSubject); |
|
1905 if (wr == null || (conn = wr.get()) == null) { |
|
1906 conn = new RemoteMBeanServerConnection(delegationSubject); |
|
1907 rmbscMap.put(delegationSubject, new WeakReference<MBeanServerConnection>(conn)); |
|
1908 } |
|
1909 } |
|
1910 return conn; |
|
1911 } |
|
1912 |
|
1913 /* |
|
1914 The following section of code avoids a class loading problem |
|
1915 with RMI. The problem is that an RMI stub, when deserializing |
|
1916 a remote method return value or exception, will first of all |
|
1917 consult the first non-bootstrap class loader it finds in the |
|
1918 call stack. This can lead to behavior that is not portable |
|
1919 between implementations of the JMX Remote API. Notably, an |
|
1920 implementation on J2SE 1.4 will find the RMI stub's loader on |
|
1921 the stack. But in J2SE 5, this stub is loaded by the |
|
1922 bootstrap loader, so RMI will find the loader of the user code |
|
1923 that called an MBeanServerConnection method. |
|
1924 |
|
1925 To avoid this problem, we take advantage of what the RMI stub |
|
1926 is doing internally. Each remote call will end up calling |
|
1927 ref.invoke(...), where ref is the RemoteRef parameter given to |
|
1928 the RMI stub's constructor. It is within this call that the |
|
1929 deserialization will happen. So we fabricate our own RemoteRef |
|
1930 that delegates everything to the "real" one but that is loaded |
|
1931 by a class loader that knows no other classes. The class |
|
1932 loader NoCallStackClassLoader does this: the RemoteRef is an |
|
1933 instance of the class named by proxyRefClassName, which is |
|
1934 fabricated by the class loader using byte code that is defined |
|
1935 by the string below. |
|
1936 |
|
1937 The call stack when the deserialization happens is thus this: |
|
1938 MBeanServerConnection.getAttribute (or whatever) |
|
1939 -> RMIConnectionImpl_Stub.getAttribute |
|
1940 -> ProxyRef.invoke(...getAttribute...) |
|
1941 -> UnicastRef.invoke(...getAttribute...) |
|
1942 -> internal RMI stuff |
|
1943 |
|
1944 Here UnicastRef is the RemoteRef created when the stub was |
|
1945 deserialized (which is of some RMI internal class). It and the |
|
1946 "internal RMI stuff" are loaded by the bootstrap loader, so are |
|
1947 transparent to the stack search. The first non-bootstrap |
|
1948 loader found is our ProxyRefLoader, as required. |
|
1949 |
|
1950 In a future version of this code as integrated into J2SE 5, |
|
1951 this workaround could be replaced by direct access to the |
|
1952 internals of RMI. For now, we use the same code base for J2SE |
|
1953 and for the standalone Reference Implementation. |
|
1954 |
|
1955 The byte code below encodes the following class, compiled using |
|
1956 J2SE 1.4.2 with the -g:none option. |
|
1957 |
|
1958 package jdk.jmx.remote.internal.rmi; |
|
1959 |
|
1960 import java.lang.reflect.Method; |
|
1961 import java.rmi.Remote; |
|
1962 import java.rmi.server.RemoteRef; |
|
1963 import com.sun.jmx.remote.internal.rmi.ProxyRef; |
|
1964 |
|
1965 public class PRef extends ProxyRef { |
|
1966 public PRef(RemoteRef ref) { |
|
1967 super(ref); |
|
1968 } |
|
1969 |
|
1970 public Object invoke(Remote obj, Method method, |
|
1971 Object[] params, long opnum) |
|
1972 throws Exception { |
|
1973 return ref.invoke(obj, method, params, opnum); |
|
1974 } |
|
1975 } |
|
1976 */ |
|
1977 |
|
1978 private static final String rmiServerImplStubClassName = |
|
1979 RMIServer.class.getName() + "Impl_Stub"; |
|
1980 private static final Class<?> rmiServerImplStubClass; |
|
1981 private static final String rmiConnectionImplStubClassName = |
|
1982 RMIConnection.class.getName() + "Impl_Stub"; |
|
1983 private static final Class<?> rmiConnectionImplStubClass; |
|
1984 private static final String pRefClassName = |
|
1985 "jdk.jmx.remote.internal.rmi.PRef"; |
|
1986 private static final Constructor<?> proxyRefConstructor; |
|
1987 static { |
|
1988 final String pRefByteCodeString = |
|
1989 "\312\376\272\276\0\0\0\65\0\27\12\0\5\0\15\11\0\4\0\16\13\0\17"+ |
|
1990 "\0\20\7\0\21\7\0\22\1\0\6<init>\1\0\36(Ljava/rmi/server/Remote"+ |
|
1991 "Ref;)V\1\0\4Code\1\0\6invoke\1\0S(Ljava/rmi/Remote;Ljava/lang/"+ |
|
1992 "reflect/Method;[Ljava/lang/Object;J)Ljava/lang/Object;\1\0\12E"+ |
|
1993 "xceptions\7\0\23\14\0\6\0\7\14\0\24\0\25\7\0\26\14\0\11\0\12\1"+ |
|
1994 "\0 jdk/jmx/remote/internal/rmi/PRef\1\0(com/sun/jmx/remote/int"+ |
|
1995 "ernal/rmi/ProxyRef\1\0\23java/lang/Exception\1\0\3ref\1\0\33Lj"+ |
|
1996 "ava/rmi/server/RemoteRef;\1\0\31java/rmi/server/RemoteRef\0!\0"+ |
|
1997 "\4\0\5\0\0\0\0\0\2\0\1\0\6\0\7\0\1\0\10\0\0\0\22\0\2\0\2\0\0\0"+ |
|
1998 "\6*+\267\0\1\261\0\0\0\0\0\1\0\11\0\12\0\2\0\10\0\0\0\33\0\6\0"+ |
|
1999 "\6\0\0\0\17*\264\0\2+,-\26\4\271\0\3\6\0\260\0\0\0\0\0\13\0\0\0"+ |
|
2000 "\4\0\1\0\14\0\0"; |
|
2001 final byte[] pRefByteCode = |
|
2002 NoCallStackClassLoader.stringToBytes(pRefByteCodeString); |
|
2003 PrivilegedExceptionAction<Constructor<?>> action = |
|
2004 new PrivilegedExceptionAction<Constructor<?>>() { |
|
2005 public Constructor<?> run() throws Exception { |
|
2006 Class<RMIConnector> thisClass = RMIConnector.class; |
|
2007 ClassLoader thisLoader = thisClass.getClassLoader(); |
|
2008 ProtectionDomain thisProtectionDomain = |
|
2009 thisClass.getProtectionDomain(); |
|
2010 |
|
2011 String proxyRefCName = ProxyRef.class.getName(); |
|
2012 ClassLoader cl = |
|
2013 new NoCallStackClassLoader(pRefClassName, |
|
2014 pRefByteCode, |
|
2015 new String[] { proxyRefCName }, |
|
2016 thisLoader, |
|
2017 thisProtectionDomain); |
|
2018 |
|
2019 Module jmxModule = ProxyRef.class.getModule(); |
|
2020 Module rmiModule = RemoteRef.class.getModule(); |
|
2021 |
|
2022 String pkg = packageOf(pRefClassName); |
|
2023 assert pkg != null && pkg.length() > 0 && !pkg.equals(packageOf(proxyRefCName)); |
|
2024 Module m = Modules.defineModule(cl, "jdk.remoteref", Collections.singleton(pkg)); |
|
2025 |
|
2026 // jdk.remoteref needs to read to java.base and jmxModule |
|
2027 Modules.addReads(m, Object.class.getModule()); |
|
2028 Modules.addReads(m, jmxModule); |
|
2029 Modules.addReads(m, rmiModule); |
|
2030 |
|
2031 // jdk.remoteref needs access to ProxyRef class |
|
2032 Modules.addExports(jmxModule, packageOf(proxyRefCName), m); |
|
2033 |
|
2034 // java.management needs to instantiate the fabricated RemoteRef class |
|
2035 Modules.addReads(jmxModule, m); |
|
2036 Modules.addExports(m, pkg, jmxModule); |
|
2037 |
|
2038 Class<?> c = cl.loadClass(pRefClassName); |
|
2039 return c.getConstructor(RemoteRef.class); |
|
2040 } |
|
2041 }; |
|
2042 |
|
2043 Class<?> serverStubClass; |
|
2044 try { |
|
2045 serverStubClass = Class.forName(rmiServerImplStubClassName); |
|
2046 } catch (Exception e) { |
|
2047 logger.error("<clinit>", |
|
2048 "Failed to instantiate " + |
|
2049 rmiServerImplStubClassName + ": " + e); |
|
2050 logger.debug("<clinit>",e); |
|
2051 serverStubClass = null; |
|
2052 } |
|
2053 rmiServerImplStubClass = serverStubClass; |
|
2054 |
|
2055 Class<?> stubClass; |
|
2056 Constructor<?> constr; |
|
2057 try { |
|
2058 stubClass = Class.forName(rmiConnectionImplStubClassName); |
|
2059 constr = (Constructor<?>) AccessController.doPrivileged(action); |
|
2060 } catch (Exception e) { |
|
2061 logger.error("<clinit>", |
|
2062 "Failed to initialize proxy reference constructor "+ |
|
2063 "for " + rmiConnectionImplStubClassName + ": " + e); |
|
2064 logger.debug("<clinit>",e); |
|
2065 stubClass = null; |
|
2066 constr = null; |
|
2067 } |
|
2068 rmiConnectionImplStubClass = stubClass; |
|
2069 proxyRefConstructor = constr; |
|
2070 } |
|
2071 |
|
2072 private static String packageOf(String cn) { |
|
2073 int i = cn.lastIndexOf('.'); |
|
2074 return i > 0 ? cn.substring(0, i) : ""; |
|
2075 } |
|
2076 |
|
2077 private static RMIConnection shadowJrmpStub(RemoteObject stub) |
|
2078 throws InstantiationException, IllegalAccessException, |
|
2079 InvocationTargetException, ClassNotFoundException, |
|
2080 NoSuchMethodException { |
|
2081 RemoteRef ref = stub.getRef(); |
|
2082 RemoteRef proxyRef = (RemoteRef) |
|
2083 proxyRefConstructor.newInstance(new Object[] {ref}); |
|
2084 final Constructor<?> rmiConnectionImplStubConstructor = |
|
2085 rmiConnectionImplStubClass.getConstructor(RemoteRef.class); |
|
2086 Object[] args = {proxyRef}; |
|
2087 RMIConnection proxyStub = (RMIConnection) |
|
2088 rmiConnectionImplStubConstructor.newInstance(args); |
|
2089 return proxyStub; |
|
2090 } |
|
2091 |
|
2092 private static RMIConnection getConnection(RMIServer server, |
|
2093 Object credentials, |
|
2094 boolean checkStub) |
|
2095 throws IOException { |
|
2096 RMIConnection c = server.newClient(credentials); |
|
2097 if (checkStub) checkStub(c, rmiConnectionImplStubClass); |
|
2098 try { |
|
2099 if (c.getClass() == rmiConnectionImplStubClass) |
|
2100 return shadowJrmpStub((RemoteObject) c); |
|
2101 logger.trace("getConnection", |
|
2102 "Did not wrap " + c.getClass() + " to foil " + |
|
2103 "stack search for classes: class loading semantics " + |
|
2104 "may be incorrect"); |
|
2105 } catch (Exception e) { |
|
2106 logger.error("getConnection", |
|
2107 "Could not wrap " + c.getClass() + " to foil " + |
|
2108 "stack search for classes: class loading semantics " + |
|
2109 "may be incorrect: " + e); |
|
2110 logger.debug("getConnection",e); |
|
2111 // so just return the original stub, which will work for all |
|
2112 // but the most exotic class loading situations |
|
2113 } |
|
2114 return c; |
|
2115 } |
|
2116 |
|
2117 private static byte[] base64ToByteArray(String s) { |
|
2118 int sLen = s.length(); |
|
2119 int numGroups = sLen/4; |
|
2120 if (4*numGroups != sLen) |
|
2121 throw new IllegalArgumentException( |
|
2122 "String length must be a multiple of four."); |
|
2123 int missingBytesInLastGroup = 0; |
|
2124 int numFullGroups = numGroups; |
|
2125 if (sLen != 0) { |
|
2126 if (s.charAt(sLen-1) == '=') { |
|
2127 missingBytesInLastGroup++; |
|
2128 numFullGroups--; |
|
2129 } |
|
2130 if (s.charAt(sLen-2) == '=') |
|
2131 missingBytesInLastGroup++; |
|
2132 } |
|
2133 byte[] result = new byte[3*numGroups - missingBytesInLastGroup]; |
|
2134 |
|
2135 // Translate all full groups from base64 to byte array elements |
|
2136 int inCursor = 0, outCursor = 0; |
|
2137 for (int i=0; i<numFullGroups; i++) { |
|
2138 int ch0 = base64toInt(s.charAt(inCursor++)); |
|
2139 int ch1 = base64toInt(s.charAt(inCursor++)); |
|
2140 int ch2 = base64toInt(s.charAt(inCursor++)); |
|
2141 int ch3 = base64toInt(s.charAt(inCursor++)); |
|
2142 result[outCursor++] = (byte) ((ch0 << 2) | (ch1 >> 4)); |
|
2143 result[outCursor++] = (byte) ((ch1 << 4) | (ch2 >> 2)); |
|
2144 result[outCursor++] = (byte) ((ch2 << 6) | ch3); |
|
2145 } |
|
2146 |
|
2147 // Translate partial group, if present |
|
2148 if (missingBytesInLastGroup != 0) { |
|
2149 int ch0 = base64toInt(s.charAt(inCursor++)); |
|
2150 int ch1 = base64toInt(s.charAt(inCursor++)); |
|
2151 result[outCursor++] = (byte) ((ch0 << 2) | (ch1 >> 4)); |
|
2152 |
|
2153 if (missingBytesInLastGroup == 1) { |
|
2154 int ch2 = base64toInt(s.charAt(inCursor++)); |
|
2155 result[outCursor++] = (byte) ((ch1 << 4) | (ch2 >> 2)); |
|
2156 } |
|
2157 } |
|
2158 // assert inCursor == s.length()-missingBytesInLastGroup; |
|
2159 // assert outCursor == result.length; |
|
2160 return result; |
|
2161 } |
|
2162 |
|
2163 /** |
|
2164 * Translates the specified character, which is assumed to be in the |
|
2165 * "Base 64 Alphabet" into its equivalent 6-bit positive integer. |
|
2166 * |
|
2167 * @throws IllegalArgumentException if |
|
2168 * c is not in the Base64 Alphabet. |
|
2169 */ |
|
2170 private static int base64toInt(char c) { |
|
2171 int result; |
|
2172 |
|
2173 if (c >= base64ToInt.length) |
|
2174 result = -1; |
|
2175 else |
|
2176 result = base64ToInt[c]; |
|
2177 |
|
2178 if (result < 0) |
|
2179 throw new IllegalArgumentException("Illegal character " + c); |
|
2180 return result; |
|
2181 } |
|
2182 |
|
2183 /** |
|
2184 * This array is a lookup table that translates unicode characters |
|
2185 * drawn from the "Base64 Alphabet" (as specified in Table 1 of RFC 2045) |
|
2186 * into their 6-bit positive integer equivalents. Characters that |
|
2187 * are not in the Base64 alphabet but fall within the bounds of the |
|
2188 * array are translated to -1. |
|
2189 */ |
|
2190 private static final byte base64ToInt[] = { |
|
2191 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
|
2192 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
|
2193 -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, |
|
2194 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, |
|
2195 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, |
|
2196 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, |
|
2197 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 |
|
2198 }; |
|
2199 |
|
2200 //-------------------------------------------------------------------- |
|
2201 // Private stuff - Find / Set default class loader |
|
2202 //-------------------------------------------------------------------- |
|
2203 private ClassLoader pushDefaultClassLoader() { |
|
2204 final Thread t = Thread.currentThread(); |
|
2205 final ClassLoader old = t.getContextClassLoader(); |
|
2206 if (defaultClassLoader != null) |
|
2207 AccessController.doPrivileged(new PrivilegedAction<Void>() { |
|
2208 public Void run() { |
|
2209 t.setContextClassLoader(defaultClassLoader); |
|
2210 return null; |
|
2211 } |
|
2212 }); |
|
2213 return old; |
|
2214 } |
|
2215 |
|
2216 private void popDefaultClassLoader(final ClassLoader old) { |
|
2217 AccessController.doPrivileged(new PrivilegedAction<Void>() { |
|
2218 public Void run() { |
|
2219 Thread.currentThread().setContextClassLoader(old); |
|
2220 return null; |
|
2221 } |
|
2222 }); |
|
2223 } |
|
2224 |
|
2225 //-------------------------------------------------------------------- |
|
2226 // Private variables |
|
2227 //-------------------------------------------------------------------- |
|
2228 /** |
|
2229 * @serial The RMIServer stub of the RMI JMX Connector server to |
|
2230 * which this client connector is (or will be) connected. This |
|
2231 * field can be null when <var>jmxServiceURL</var> is not |
|
2232 * null. This includes the case where <var>jmxServiceURL</var> |
|
2233 * contains a serialized RMIServer stub. If both |
|
2234 * <var>rmiServer</var> and <var>jmxServiceURL</var> are null then |
|
2235 * serialization will fail. |
|
2236 * |
|
2237 * @see #RMIConnector(RMIServer,Map) |
|
2238 **/ |
|
2239 private final RMIServer rmiServer; |
|
2240 |
|
2241 /** |
|
2242 * @serial The JMXServiceURL of the RMI JMX Connector server to |
|
2243 * which this client connector will be connected. This field can |
|
2244 * be null when <var>rmiServer</var> is not null. If both |
|
2245 * <var>rmiServer</var> and <var>jmxServiceURL</var> are null then |
|
2246 * serialization will fail. |
|
2247 * |
|
2248 * @see #RMIConnector(JMXServiceURL,Map) |
|
2249 **/ |
|
2250 private final JMXServiceURL jmxServiceURL; |
|
2251 |
|
2252 // --------------------------------------------------------- |
|
2253 // WARNING - WARNING - WARNING - WARNING - WARNING - WARNING |
|
2254 // --------------------------------------------------------- |
|
2255 // Any transient variable which needs to be initialized should |
|
2256 // be initialized in the method initTransient() |
|
2257 private transient Map<String, Object> env; |
|
2258 private transient ClassLoader defaultClassLoader; |
|
2259 private transient RMIConnection connection; |
|
2260 private transient String connectionId; |
|
2261 |
|
2262 private transient long clientNotifSeqNo = 0; |
|
2263 |
|
2264 private transient WeakHashMap<Subject, WeakReference<MBeanServerConnection>> rmbscMap; |
|
2265 private transient WeakReference<MBeanServerConnection> nullSubjectConnRef = null; |
|
2266 |
|
2267 private transient RMINotifClient rmiNotifClient; |
|
2268 // = new RMINotifClient(new Integer(0)); |
|
2269 |
|
2270 private transient long clientNotifCounter = 0; |
|
2271 |
|
2272 private transient boolean connected; |
|
2273 // = false; |
|
2274 private transient boolean terminated; |
|
2275 // = false; |
|
2276 |
|
2277 private transient Exception closeException; |
|
2278 |
|
2279 private transient NotificationBroadcasterSupport connectionBroadcaster; |
|
2280 |
|
2281 private transient ClientCommunicatorAdmin communicatorAdmin; |
|
2282 |
|
2283 /** |
|
2284 * A static WeakReference to an {@link org.omg.CORBA.ORB ORB} to |
|
2285 * connect unconnected stubs. |
|
2286 **/ |
|
2287 private static volatile WeakReference<Object> orb = null; |
|
2288 |
|
2289 // TRACES & DEBUG |
|
2290 //--------------- |
|
2291 private static String objects(final Object[] objs) { |
|
2292 if (objs == null) |
|
2293 return "null"; |
|
2294 else |
|
2295 return Arrays.asList(objs).toString(); |
|
2296 } |
|
2297 |
|
2298 private static String strings(final String[] strs) { |
|
2299 return objects(strs); |
|
2300 } |
|
2301 |
|
2302 static String getAttributesNames(AttributeList attributes) { |
|
2303 return attributes != null ? |
|
2304 attributes.asList().stream() |
|
2305 .map(Attribute::getName) |
|
2306 .collect(Collectors.joining(", ", "[", "]")) |
|
2307 : "[]"; |
|
2308 } |
|
2309 } |