author | robm |
Wed, 11 Apr 2012 17:47:56 -0700 | |
changeset 13041 | 8477cb6992be |
parent 12040 | 558b0e0d5910 |
child 18212 | 22f8c33b0690 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.rmi.server; |
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import java.io.ByteArrayOutputStream; |
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import java.io.File; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.ObjectInputStream; |
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import java.io.OutputStream; |
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import java.io.PrintStream; |
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import java.io.PrintWriter; |
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import java.io.Serializable; |
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import java.lang.Process; |
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import java.lang.reflect.InvocationTargetException; |
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import java.lang.reflect.Method; |
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import java.net.InetAddress; |
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import java.net.ServerSocket; |
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import java.net.Socket; |
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import java.net.SocketAddress; |
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import java.net.SocketException; |
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import java.nio.file.Files; |
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import java.nio.channels.Channel; |
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import java.nio.channels.ServerSocketChannel; |
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import java.rmi.AccessException; |
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import java.rmi.AlreadyBoundException; |
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import java.rmi.ConnectException; |
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import java.rmi.ConnectIOException; |
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import java.rmi.MarshalledObject; |
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import java.rmi.NoSuchObjectException; |
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import java.rmi.NotBoundException; |
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import java.rmi.Remote; |
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import java.rmi.RemoteException; |
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import java.rmi.activation.ActivationDesc; |
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import java.rmi.activation.ActivationException; |
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import java.rmi.activation.ActivationGroupDesc; |
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import java.rmi.activation.ActivationGroup; |
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import java.rmi.activation.ActivationGroupID; |
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import java.rmi.activation.ActivationID; |
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import java.rmi.activation.ActivationInstantiator; |
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import java.rmi.activation.ActivationMonitor; |
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import java.rmi.activation.ActivationSystem; |
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import java.rmi.activation.Activator; |
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import java.rmi.activation.UnknownGroupException; |
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import java.rmi.activation.UnknownObjectException; |
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import java.rmi.registry.Registry; |
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import java.rmi.server.ObjID; |
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import java.rmi.server.RMIClassLoader; |
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import java.rmi.server.RMIClientSocketFactory; |
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import java.rmi.server.RMIServerSocketFactory; |
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import java.rmi.server.RemoteObject; |
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import java.rmi.server.RemoteServer; |
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import java.rmi.server.UnicastRemoteObject; |
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import java.security.AccessControlException; |
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import java.security.AccessController; |
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import java.security.AllPermission; |
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import java.security.CodeSource; |
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import java.security.Permission; |
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import java.security.PermissionCollection; |
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import java.security.Permissions; |
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import java.security.Policy; |
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import java.security.PrivilegedAction; |
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import java.security.PrivilegedExceptionAction; |
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import java.security.cert.Certificate; |
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import java.text.MessageFormat; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Date; |
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import java.util.Enumeration; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.MissingResourceException; |
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import java.util.Properties; |
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import java.util.ResourceBundle; |
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import java.util.Set; |
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import java.util.concurrent.ConcurrentHashMap; |
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import sun.rmi.log.LogHandler; |
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import sun.rmi.log.ReliableLog; |
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import sun.rmi.registry.RegistryImpl; |
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import sun.rmi.runtime.NewThreadAction; |
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import sun.rmi.server.UnicastServerRef; |
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import sun.rmi.transport.LiveRef; |
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import sun.security.action.GetBooleanAction; |
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import sun.security.action.GetIntegerAction; |
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import sun.security.action.GetPropertyAction; |
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import sun.security.provider.PolicyFile; |
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import com.sun.rmi.rmid.ExecPermission; |
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import com.sun.rmi.rmid.ExecOptionPermission; |
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/** |
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* The Activator facilitates remote object activation. A "faulting" |
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* remote reference calls the activator's <code>activate</code> method |
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* to obtain a "live" reference to a activatable remote object. Upon |
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* receiving a request for activation, the activator looks up the |
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* activation descriptor for the activation identifier, id, determines |
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* the group in which the object should be activated and invokes the |
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* activate method on the object's activation group (described by the |
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* remote interface <code>ActivationInstantiator</code>). The |
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* activator initiates the execution of activation groups as |
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* necessary. For example, if an activation group for a specific group |
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* identifier is not already executing, the activator will spawn a |
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* child process for the activation group. <p> |
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* |
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* The activator is responsible for monitoring and detecting when |
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* activation groups fail so that it can remove stale remote references |
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* from its internal tables. <p> |
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* |
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* @author Ann Wollrath |
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* @since 1.2 |
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*/ |
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public class Activation implements Serializable { |
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/** indicate compatibility with JDK 1.2 version of class */ |
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private static final long serialVersionUID = 2921265612698155191L; |
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private static final byte MAJOR_VERSION = 1; |
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private static final byte MINOR_VERSION = 0; |
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/** exec policy object */ |
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private static Object execPolicy; |
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private static Method execPolicyMethod; |
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private static boolean debugExec; |
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/** maps activation id to its respective group id */ |
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private Map<ActivationID,ActivationGroupID> idTable = |
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new ConcurrentHashMap<>(); |
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/** maps group id to its GroupEntry groups */ |
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private Map<ActivationGroupID,GroupEntry> groupTable = |
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new ConcurrentHashMap<>(); |
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private byte majorVersion = MAJOR_VERSION; |
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private byte minorVersion = MINOR_VERSION; |
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/** number of simultaneous group exec's */ |
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private transient int groupSemaphore; |
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/** counter for numbering groups */ |
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private transient int groupCounter; |
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/** reliable log to hold descriptor table */ |
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private transient ReliableLog log; |
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/** number of updates since last snapshot */ |
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private transient int numUpdates; |
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/** the java command */ |
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// accessed by GroupEntry |
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private transient String[] command; |
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/** timeout on wait for child process to be created or destroyed */ |
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private static final long groupTimeout = |
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getInt("sun.rmi.activation.groupTimeout", 60000); |
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/** take snapshot after this many updates */ |
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private static final int snapshotInterval = |
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getInt("sun.rmi.activation.snapshotInterval", 200); |
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/** timeout on wait for child process to be created */ |
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private static final long execTimeout = |
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getInt("sun.rmi.activation.execTimeout", 30000); |
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private static final Object initLock = new Object(); |
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private static boolean initDone = false; |
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// this should be a *private* method since it is privileged |
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private static int getInt(String name, int def) { |
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return AccessController.doPrivileged(new GetIntegerAction(name, def)); |
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} |
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private transient Activator activator; |
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private transient Activator activatorStub; |
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private transient ActivationSystem system; |
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private transient ActivationSystem systemStub; |
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private transient ActivationMonitor monitor; |
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private transient Registry registry; |
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private transient volatile boolean shuttingDown = false; |
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private transient volatile Object startupLock; |
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private transient Thread shutdownHook; |
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private static ResourceBundle resources = null; |
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/** |
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* Create an uninitialized instance of Activation that can be |
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* populated with log data. This is only called when the initial |
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* snapshot is taken during the first incarnation of rmid. |
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*/ |
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private Activation() {} |
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/** |
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* Recover activation state from the reliable log and initialize |
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* activation services. |
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*/ |
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private static void startActivation(int port, |
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RMIServerSocketFactory ssf, |
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String logName, |
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String[] childArgs) |
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throws Exception |
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{ |
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ReliableLog log = new ReliableLog(logName, new ActLogHandler()); |
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Activation state = (Activation) log.recover(); |
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state.init(port, ssf, log, childArgs); |
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} |
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/** |
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* Initialize the Activation instantiation; start activation |
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* services. |
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*/ |
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private void init(int port, |
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RMIServerSocketFactory ssf, |
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ReliableLog log, |
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String[] childArgs) |
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throws Exception |
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{ |
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// initialize |
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this.log = log; |
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numUpdates = 0; |
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shutdownHook = new ShutdownHook(); |
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groupSemaphore = getInt("sun.rmi.activation.groupThrottle", 3); |
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groupCounter = 0; |
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Runtime.getRuntime().addShutdownHook(shutdownHook); |
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// Use array size of 0, since the value from calling size() |
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// may be out of date by the time toArray() is called. |
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ActivationGroupID[] gids = |
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groupTable.keySet().toArray(new ActivationGroupID[0]); |
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synchronized (startupLock = new Object()) { |
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// all the remote methods briefly synchronize on startupLock |
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// (via checkShutdown) to make sure they don't happen in the |
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// middle of this block. This block must not cause any such |
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// incoming remote calls to happen, or deadlock would result! |
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activator = new ActivatorImpl(port, ssf); |
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activatorStub = (Activator) RemoteObject.toStub(activator); |
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system = new ActivationSystemImpl(port, ssf); |
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systemStub = (ActivationSystem) RemoteObject.toStub(system); |
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monitor = new ActivationMonitorImpl(port, ssf); |
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initCommand(childArgs); |
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registry = new SystemRegistryImpl(port, null, ssf, systemStub); |
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if (ssf != null) { |
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synchronized (initLock) { |
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initDone = true; |
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initLock.notifyAll(); |
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} |
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} |
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} |
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startupLock = null; |
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// restart services |
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for (int i = gids.length; --i >= 0; ) { |
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try { |
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getGroupEntry(gids[i]).restartServices(); |
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} catch (UnknownGroupException e) { |
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System.err.println( |
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getTextResource("rmid.restart.group.warning")); |
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e.printStackTrace(); |
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} |
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} |
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} |
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/** |
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* Previous versions used HashMap instead of ConcurrentHashMap. |
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* Replace any HashMaps found during deserialization with |
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* ConcurrentHashMaps. |
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*/ |
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private void readObject(ObjectInputStream ois) |
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throws IOException, ClassNotFoundException |
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{ |
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ois.defaultReadObject(); |
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if (! (groupTable instanceof ConcurrentHashMap)) { |
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groupTable = new ConcurrentHashMap<>(groupTable); |
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} |
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if (! (idTable instanceof ConcurrentHashMap)) { |
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idTable = new ConcurrentHashMap<>(idTable); |
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} |
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} |
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private static class SystemRegistryImpl extends RegistryImpl { |
299 |
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private static final String NAME = ActivationSystem.class.getName(); |
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private static final long serialVersionUID = 4877330021609408794L; |
2 | 302 |
private final ActivationSystem systemStub; |
303 |
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304 |
SystemRegistryImpl(int port, |
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RMIClientSocketFactory csf, |
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RMIServerSocketFactory ssf, |
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ActivationSystem systemStub) |
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throws RemoteException |
|
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{ |
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super(port, csf, ssf); |
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this.systemStub = systemStub; |
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} |
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/** |
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* Returns the activation system stub if the specified name |
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* matches the activation system's class name, otherwise |
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* returns the result of invoking super.lookup with the specified |
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* name. |
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*/ |
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public Remote lookup(String name) |
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321 |
throws RemoteException, NotBoundException |
|
322 |
{ |
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323 |
if (name.equals(NAME)) { |
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324 |
return systemStub; |
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325 |
} else { |
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return super.lookup(name); |
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} |
|
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} |
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329 |
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330 |
public String[] list() throws RemoteException { |
|
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String[] list1 = super.list(); |
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int length = list1.length; |
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String[] list2 = new String[length + 1]; |
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if (length > 0) { |
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System.arraycopy(list1, 0, list2, 0, length); |
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} |
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list2[length] = NAME; |
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return list2; |
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339 |
} |
|
340 |
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341 |
public void bind(String name, Remote obj) |
|
342 |
throws RemoteException, AlreadyBoundException, AccessException |
|
343 |
{ |
|
344 |
if (name.equals(NAME)) { |
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throw new AccessException( |
|
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"binding ActivationSystem is disallowed"); |
|
347 |
} else { |
|
348 |
super.bind(name, obj); |
|
349 |
} |
|
350 |
} |
|
351 |
||
352 |
public void unbind(String name) |
|
353 |
throws RemoteException, NotBoundException, AccessException |
|
354 |
{ |
|
355 |
if (name.equals(NAME)) { |
|
356 |
throw new AccessException( |
|
357 |
"unbinding ActivationSystem is disallowed"); |
|
358 |
} else { |
|
359 |
super.unbind(name); |
|
360 |
} |
|
361 |
} |
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362 |
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363 |
||
364 |
public void rebind(String name, Remote obj) |
|
365 |
throws RemoteException, AccessException |
|
366 |
{ |
|
367 |
if (name.equals(NAME)) { |
|
368 |
throw new AccessException( |
|
369 |
"binding ActivationSystem is disallowed"); |
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370 |
} else { |
|
371 |
super.rebind(name, obj); |
|
372 |
} |
|
373 |
} |
|
374 |
} |
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375 |
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376 |
||
377 |
class ActivatorImpl extends RemoteServer implements Activator { |
|
378 |
// Because ActivatorImpl has a fixed ObjID, it can be |
|
379 |
// called by clients holding stale remote references. Each of |
|
380 |
// its remote methods, then, must check startupLock (calling |
|
381 |
// checkShutdown() is easiest). |
|
382 |
||
383 |
private static final long serialVersionUID = -3654244726254566136L; |
|
384 |
||
385 |
/** |
|
386 |
* Construct a new Activator on a specified port. |
|
387 |
*/ |
|
388 |
ActivatorImpl(int port, RMIServerSocketFactory ssf) |
|
389 |
throws RemoteException |
|
390 |
{ |
|
391 |
/* Server ref must be created and assigned before remote object |
|
392 |
* 'this' can be exported. |
|
393 |
*/ |
|
394 |
LiveRef lref = |
|
395 |
new LiveRef(new ObjID(ObjID.ACTIVATOR_ID), port, null, ssf); |
|
396 |
UnicastServerRef uref = new UnicastServerRef(lref); |
|
397 |
ref = uref; |
|
398 |
uref.exportObject(this, null, false); |
|
399 |
} |
|
400 |
||
401 |
public MarshalledObject<? extends Remote> activate(ActivationID id, |
|
402 |
boolean force) |
|
403 |
throws ActivationException, UnknownObjectException, RemoteException |
|
404 |
{ |
|
405 |
checkShutdown(); |
|
406 |
return getGroupEntry(id).activate(id, force); |
|
407 |
} |
|
408 |
} |
|
409 |
||
410 |
class ActivationMonitorImpl extends UnicastRemoteObject |
|
411 |
implements ActivationMonitor |
|
412 |
{ |
|
413 |
private static final long serialVersionUID = -6214940464757948867L; |
|
414 |
||
415 |
ActivationMonitorImpl(int port, RMIServerSocketFactory ssf) |
|
416 |
throws RemoteException |
|
417 |
{ |
|
418 |
super(port, null, ssf); |
|
419 |
} |
|
420 |
||
421 |
public void inactiveObject(ActivationID id) |
|
422 |
throws UnknownObjectException, RemoteException |
|
423 |
{ |
|
424 |
try { |
|
425 |
checkShutdown(); |
|
426 |
} catch (ActivationException e) { |
|
427 |
return; |
|
428 |
} |
|
429 |
RegistryImpl.checkAccess("Activator.inactiveObject"); |
|
430 |
getGroupEntry(id).inactiveObject(id); |
|
431 |
} |
|
432 |
||
433 |
public void activeObject(ActivationID id, |
|
434 |
MarshalledObject<? extends Remote> mobj) |
|
435 |
throws UnknownObjectException, RemoteException |
|
436 |
{ |
|
437 |
try { |
|
438 |
checkShutdown(); |
|
439 |
} catch (ActivationException e) { |
|
440 |
return; |
|
441 |
} |
|
442 |
RegistryImpl.checkAccess("ActivationSystem.activeObject"); |
|
443 |
getGroupEntry(id).activeObject(id, mobj); |
|
444 |
} |
|
445 |
||
446 |
public void inactiveGroup(ActivationGroupID id, |
|
447 |
long incarnation) |
|
448 |
throws UnknownGroupException, RemoteException |
|
449 |
{ |
|
450 |
try { |
|
451 |
checkShutdown(); |
|
452 |
} catch (ActivationException e) { |
|
453 |
return; |
|
454 |
} |
|
455 |
RegistryImpl.checkAccess("ActivationMonitor.inactiveGroup"); |
|
456 |
getGroupEntry(id).inactiveGroup(incarnation, false); |
|
457 |
} |
|
458 |
} |
|
459 |
||
460 |
||
461 |
class ActivationSystemImpl |
|
462 |
extends RemoteServer |
|
463 |
implements ActivationSystem |
|
464 |
{ |
|
465 |
private static final long serialVersionUID = 9100152600327688967L; |
|
466 |
||
467 |
// Because ActivationSystemImpl has a fixed ObjID, it can be |
|
468 |
// called by clients holding stale remote references. Each of |
|
469 |
// its remote methods, then, must check startupLock (calling |
|
470 |
// checkShutdown() is easiest). |
|
471 |
ActivationSystemImpl(int port, RMIServerSocketFactory ssf) |
|
472 |
throws RemoteException |
|
473 |
{ |
|
474 |
/* Server ref must be created and assigned before remote object |
|
475 |
* 'this' can be exported. |
|
476 |
*/ |
|
477 |
LiveRef lref = new LiveRef(new ObjID(4), port, null, ssf); |
|
478 |
UnicastServerRef uref = new UnicastServerRef(lref); |
|
479 |
ref = uref; |
|
480 |
uref.exportObject(this, null); |
|
481 |
} |
|
482 |
||
483 |
public ActivationID registerObject(ActivationDesc desc) |
|
484 |
throws ActivationException, UnknownGroupException, RemoteException |
|
485 |
{ |
|
486 |
checkShutdown(); |
|
487 |
RegistryImpl.checkAccess("ActivationSystem.registerObject"); |
|
488 |
||
489 |
ActivationGroupID groupID = desc.getGroupID(); |
|
490 |
ActivationID id = new ActivationID(activatorStub); |
|
491 |
getGroupEntry(groupID).registerObject(id, desc, true); |
|
492 |
return id; |
|
493 |
} |
|
494 |
||
495 |
public void unregisterObject(ActivationID id) |
|
496 |
throws ActivationException, UnknownObjectException, RemoteException |
|
497 |
{ |
|
498 |
checkShutdown(); |
|
499 |
RegistryImpl.checkAccess("ActivationSystem.unregisterObject"); |
|
500 |
getGroupEntry(id).unregisterObject(id, true); |
|
501 |
} |
|
502 |
||
503 |
public ActivationGroupID registerGroup(ActivationGroupDesc desc) |
|
504 |
throws ActivationException, RemoteException |
|
505 |
{ |
|
506 |
checkShutdown(); |
|
507 |
RegistryImpl.checkAccess("ActivationSystem.registerGroup"); |
|
508 |
checkArgs(desc, null); |
|
509 |
||
510 |
ActivationGroupID id = new ActivationGroupID(systemStub); |
|
511 |
GroupEntry entry = new GroupEntry(id, desc); |
|
512 |
// table insertion must take place before log update |
|
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|
513 |
groupTable.put(id, entry); |
2 | 514 |
addLogRecord(new LogRegisterGroup(id, desc)); |
515 |
return id; |
|
516 |
} |
|
517 |
||
518 |
public ActivationMonitor activeGroup(ActivationGroupID id, |
|
519 |
ActivationInstantiator group, |
|
520 |
long incarnation) |
|
521 |
throws ActivationException, UnknownGroupException, RemoteException |
|
522 |
{ |
|
523 |
checkShutdown(); |
|
524 |
RegistryImpl.checkAccess("ActivationSystem.activeGroup"); |
|
525 |
||
526 |
getGroupEntry(id).activeGroup(group, incarnation); |
|
527 |
return monitor; |
|
528 |
} |
|
529 |
||
530 |
public void unregisterGroup(ActivationGroupID id) |
|
531 |
throws ActivationException, UnknownGroupException, RemoteException |
|
532 |
{ |
|
533 |
checkShutdown(); |
|
534 |
RegistryImpl.checkAccess("ActivationSystem.unregisterGroup"); |
|
535 |
||
536 |
// remove entry before unregister so state is updated before |
|
537 |
// logged |
|
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|
538 |
removeGroupEntry(id).unregisterGroup(true); |
2 | 539 |
} |
540 |
||
541 |
public ActivationDesc setActivationDesc(ActivationID id, |
|
542 |
ActivationDesc desc) |
|
543 |
throws ActivationException, UnknownObjectException, RemoteException |
|
544 |
{ |
|
545 |
checkShutdown(); |
|
546 |
RegistryImpl.checkAccess("ActivationSystem.setActivationDesc"); |
|
547 |
||
548 |
if (!getGroupID(id).equals(desc.getGroupID())) { |
|
549 |
throw new ActivationException( |
|
550 |
"ActivationDesc contains wrong group"); |
|
551 |
} |
|
552 |
return getGroupEntry(id).setActivationDesc(id, desc, true); |
|
553 |
} |
|
554 |
||
555 |
public ActivationGroupDesc setActivationGroupDesc(ActivationGroupID id, |
|
556 |
ActivationGroupDesc desc) |
|
557 |
throws ActivationException, UnknownGroupException, RemoteException |
|
558 |
{ |
|
559 |
checkShutdown(); |
|
560 |
RegistryImpl.checkAccess( |
|
561 |
"ActivationSystem.setActivationGroupDesc"); |
|
562 |
||
563 |
checkArgs(desc, null); |
|
564 |
return getGroupEntry(id).setActivationGroupDesc(id, desc, true); |
|
565 |
} |
|
566 |
||
567 |
public ActivationDesc getActivationDesc(ActivationID id) |
|
568 |
throws ActivationException, UnknownObjectException, RemoteException |
|
569 |
{ |
|
570 |
checkShutdown(); |
|
571 |
RegistryImpl.checkAccess("ActivationSystem.getActivationDesc"); |
|
572 |
||
573 |
return getGroupEntry(id).getActivationDesc(id); |
|
574 |
} |
|
575 |
||
576 |
public ActivationGroupDesc getActivationGroupDesc(ActivationGroupID id) |
|
577 |
throws ActivationException, UnknownGroupException, RemoteException |
|
578 |
{ |
|
579 |
checkShutdown(); |
|
580 |
RegistryImpl.checkAccess |
|
581 |
("ActivationSystem.getActivationGroupDesc"); |
|
582 |
||
583 |
return getGroupEntry(id).desc; |
|
584 |
} |
|
585 |
||
586 |
/** |
|
587 |
* Shutdown the activation system. Destroys all groups spawned by |
|
588 |
* the activation daemon and exits the activation daemon. |
|
589 |
*/ |
|
590 |
public void shutdown() throws AccessException { |
|
591 |
RegistryImpl.checkAccess("ActivationSystem.shutdown"); |
|
592 |
||
593 |
Object lock = startupLock; |
|
594 |
if (lock != null) { |
|
595 |
synchronized (lock) { |
|
596 |
// nothing |
|
597 |
} |
|
598 |
} |
|
599 |
||
600 |
synchronized (Activation.this) { |
|
601 |
if (!shuttingDown) { |
|
602 |
shuttingDown = true; |
|
603 |
(new Shutdown()).start(); |
|
604 |
} |
|
605 |
} |
|
606 |
} |
|
607 |
} |
|
608 |
||
609 |
private void checkShutdown() throws ActivationException { |
|
610 |
// if the startup critical section is running, wait until it |
|
611 |
// completes/fails before continuing with the remote call. |
|
612 |
Object lock = startupLock; |
|
613 |
if (lock != null) { |
|
614 |
synchronized (lock) { |
|
615 |
// nothing |
|
616 |
} |
|
617 |
} |
|
618 |
||
619 |
if (shuttingDown == true) { |
|
620 |
throw new ActivationException( |
|
621 |
"activation system shutting down"); |
|
622 |
} |
|
623 |
} |
|
624 |
||
625 |
private static void unexport(Remote obj) { |
|
626 |
for (;;) { |
|
627 |
try { |
|
628 |
if (UnicastRemoteObject.unexportObject(obj, false) == true) { |
|
629 |
break; |
|
630 |
} else { |
|
631 |
Thread.sleep(100); |
|
632 |
} |
|
633 |
} catch (Exception e) { |
|
634 |
continue; |
|
635 |
} |
|
636 |
} |
|
637 |
} |
|
638 |
||
639 |
/** |
|
640 |
* Thread to shutdown rmid. |
|
641 |
*/ |
|
642 |
private class Shutdown extends Thread { |
|
643 |
Shutdown() { |
|
644 |
super("rmid Shutdown"); |
|
645 |
} |
|
646 |
||
647 |
public void run() { |
|
648 |
try { |
|
649 |
/* |
|
650 |
* Unexport activation system services |
|
651 |
*/ |
|
652 |
unexport(activator); |
|
653 |
unexport(system); |
|
654 |
||
655 |
// destroy all child processes (groups) |
|
9502
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|
656 |
for (GroupEntry groupEntry : groupTable.values()) { |
2 | 657 |
groupEntry.shutdown(); |
658 |
} |
|
659 |
||
660 |
Runtime.getRuntime().removeShutdownHook(shutdownHook); |
|
661 |
||
662 |
/* |
|
663 |
* Unexport monitor safely since all processes are destroyed. |
|
664 |
*/ |
|
665 |
unexport(monitor); |
|
666 |
||
667 |
/* |
|
668 |
* Close log file, fix for 4243264: rmid shutdown thread |
|
669 |
* interferes with remote calls in progress. Make sure |
|
670 |
* the log file is only closed when it is impossible for |
|
671 |
* its closure to interfere with any pending remote calls. |
|
672 |
* We close the log when all objects in the rmid VM are |
|
673 |
* unexported. |
|
674 |
*/ |
|
675 |
try { |
|
676 |
synchronized (log) { |
|
677 |
log.close(); |
|
678 |
} |
|
679 |
} catch (IOException e) { |
|
680 |
} |
|
681 |
||
682 |
} finally { |
|
683 |
/* |
|
684 |
* Now exit... A System.exit should only be done if |
|
685 |
* the RMI activation system daemon was started up |
|
686 |
* by the main method below (in which should always |
|
687 |
* be the case since the Activation contructor is private). |
|
688 |
*/ |
|
689 |
System.err.println(getTextResource("rmid.daemon.shutdown")); |
|
690 |
System.exit(0); |
|
691 |
} |
|
692 |
} |
|
693 |
} |
|
694 |
||
695 |
/** Thread to destroy children in the event of abnormal termination. */ |
|
696 |
private class ShutdownHook extends Thread { |
|
697 |
ShutdownHook() { |
|
698 |
super("rmid ShutdownHook"); |
|
699 |
} |
|
700 |
||
701 |
public void run() { |
|
702 |
synchronized (Activation.this) { |
|
703 |
shuttingDown = true; |
|
704 |
} |
|
705 |
||
706 |
// destroy all child processes (groups) quickly |
|
9502
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changeset
|
707 |
for (GroupEntry groupEntry : groupTable.values()) { |
de183d393b77
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|
708 |
groupEntry.shutdownFast(); |
2 | 709 |
} |
710 |
} |
|
711 |
} |
|
712 |
||
713 |
/** |
|
714 |
* Returns the groupID for a given id of an object in the group. |
|
715 |
* Throws UnknownObjectException if the object is not registered. |
|
716 |
*/ |
|
717 |
private ActivationGroupID getGroupID(ActivationID id) |
|
718 |
throws UnknownObjectException |
|
719 |
{ |
|
9502
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|
720 |
ActivationGroupID groupID = idTable.get(id); |
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|
721 |
if (groupID != null) { |
de183d393b77
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diff
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|
722 |
return groupID; |
de183d393b77
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diff
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|
723 |
} |
de183d393b77
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changeset
|
724 |
throw new UnknownObjectException("unknown object: " + id); |
de183d393b77
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diff
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|
725 |
} |
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6896297: (rmi) fix ConcurrentModificationException causing TCK failure
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5506
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changeset
|
726 |
|
de183d393b77
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|
727 |
/** |
de183d393b77
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changeset
|
728 |
* Returns the group entry for the group id, optionally removing it. |
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|
729 |
* Throws UnknownGroupException if the group is not registered. |
de183d393b77
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|
730 |
*/ |
de183d393b77
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|
731 |
private GroupEntry getGroupEntry(ActivationGroupID id, boolean rm) |
de183d393b77
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|
732 |
throws UnknownGroupException |
de183d393b77
6896297: (rmi) fix ConcurrentModificationException causing TCK failure
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|
733 |
{ |
de183d393b77
6896297: (rmi) fix ConcurrentModificationException causing TCK failure
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|
734 |
if (id.getClass() == ActivationGroupID.class) { |
de183d393b77
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|
735 |
GroupEntry entry; |
de183d393b77
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diff
changeset
|
736 |
if (rm) { |
de183d393b77
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|
737 |
entry = groupTable.remove(id); |
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|
738 |
} else { |
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|
739 |
entry = groupTable.get(id); |
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|
740 |
} |
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|
741 |
if (entry != null && !entry.removed) { |
de183d393b77
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|
742 |
return entry; |
2 | 743 |
} |
744 |
} |
|
9502
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|
745 |
throw new UnknownGroupException("group unknown"); |
2 | 746 |
} |
747 |
||
748 |
/** |
|
749 |
* Returns the group entry for the group id. Throws |
|
750 |
* UnknownGroupException if the group is not registered. |
|
751 |
*/ |
|
752 |
private GroupEntry getGroupEntry(ActivationGroupID id) |
|
753 |
throws UnknownGroupException |
|
754 |
{ |
|
9502
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|
755 |
return getGroupEntry(id, false); |
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|
756 |
} |
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|
757 |
|
de183d393b77
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|
758 |
/** |
de183d393b77
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|
759 |
* Removes and returns the group entry for the group id. Throws |
de183d393b77
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|
760 |
* UnknownGroupException if the group is not registered. |
de183d393b77
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|
761 |
*/ |
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|
762 |
private GroupEntry removeGroupEntry(ActivationGroupID id) |
de183d393b77
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|
763 |
throws UnknownGroupException |
de183d393b77
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|
764 |
{ |
de183d393b77
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diff
changeset
|
765 |
return getGroupEntry(id, true); |
2 | 766 |
} |
767 |
||
768 |
/** |
|
769 |
* Returns the group entry for the object's id. Throws |
|
770 |
* UnknownObjectException if the object is not registered or the |
|
771 |
* object's group is not registered. |
|
772 |
*/ |
|
773 |
private GroupEntry getGroupEntry(ActivationID id) |
|
774 |
throws UnknownObjectException |
|
775 |
{ |
|
776 |
ActivationGroupID gid = getGroupID(id); |
|
9502
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|
777 |
GroupEntry entry = groupTable.get(gid); |
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|
778 |
if (entry != null && !entry.removed) { |
de183d393b77
6896297: (rmi) fix ConcurrentModificationException causing TCK failure
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5506
diff
changeset
|
779 |
return entry; |
2 | 780 |
} |
781 |
throw new UnknownObjectException("object's group removed"); |
|
782 |
} |
|
783 |
||
784 |
/** |
|
785 |
* Container for group information: group's descriptor, group's |
|
786 |
* instantiator, flag to indicate pending group creation, and |
|
787 |
* table of the group's actived objects. |
|
788 |
* |
|
789 |
* WARNING: GroupEntry objects should not be written into log file |
|
790 |
* updates. GroupEntrys are inner classes of Activation and they |
|
791 |
* can not be serialized independent of this class. If the |
|
792 |
* complete Activation system is written out as a log update, the |
|
793 |
* point of having updates is nullified. |
|
794 |
*/ |
|
795 |
private class GroupEntry implements Serializable { |
|
796 |
||
797 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
798 |
private static final long serialVersionUID = 7222464070032993304L; |
|
799 |
private static final int MAX_TRIES = 2; |
|
800 |
private static final int NORMAL = 0; |
|
801 |
private static final int CREATING = 1; |
|
802 |
private static final int TERMINATE = 2; |
|
803 |
private static final int TERMINATING = 3; |
|
804 |
||
805 |
ActivationGroupDesc desc = null; |
|
806 |
ActivationGroupID groupID = null; |
|
807 |
long incarnation = 0; |
|
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diff
changeset
|
808 |
Map<ActivationID,ObjectEntry> objects = new HashMap<>(); |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
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|
809 |
Set<ActivationID> restartSet = new HashSet<>(); |
2 | 810 |
|
811 |
transient ActivationInstantiator group = null; |
|
812 |
transient int status = NORMAL; |
|
813 |
transient long waitTime = 0; |
|
814 |
transient String groupName = null; |
|
815 |
transient Process child = null; |
|
816 |
transient boolean removed = false; |
|
817 |
transient Watchdog watchdog = null; |
|
818 |
||
819 |
GroupEntry(ActivationGroupID groupID, ActivationGroupDesc desc) { |
|
820 |
this.groupID = groupID; |
|
821 |
this.desc = desc; |
|
822 |
} |
|
823 |
||
824 |
void restartServices() { |
|
825 |
Iterator<ActivationID> iter = null; |
|
826 |
||
827 |
synchronized (this) { |
|
828 |
if (restartSet.isEmpty()) { |
|
829 |
return; |
|
830 |
} |
|
831 |
||
832 |
/* |
|
833 |
* Clone the restartSet so the set does not have to be locked |
|
834 |
* during iteration. Locking the restartSet could cause |
|
835 |
* deadlock if an object we are restarting caused another |
|
836 |
* object in this group to be activated. |
|
837 |
*/ |
|
838 |
iter = (new HashSet<ActivationID>(restartSet)).iterator(); |
|
839 |
} |
|
840 |
||
841 |
while (iter.hasNext()) { |
|
842 |
ActivationID id = iter.next(); |
|
843 |
try { |
|
844 |
activate(id, true); |
|
845 |
} catch (Exception e) { |
|
846 |
if (shuttingDown) { |
|
847 |
return; |
|
848 |
} |
|
849 |
System.err.println( |
|
850 |
getTextResource("rmid.restart.service.warning")); |
|
851 |
e.printStackTrace(); |
|
852 |
} |
|
853 |
} |
|
854 |
} |
|
855 |
||
856 |
synchronized void activeGroup(ActivationInstantiator inst, |
|
857 |
long instIncarnation) |
|
858 |
throws ActivationException, UnknownGroupException |
|
859 |
{ |
|
860 |
if (incarnation != instIncarnation) { |
|
861 |
throw new ActivationException("invalid incarnation"); |
|
862 |
} |
|
863 |
||
864 |
if (group != null) { |
|
865 |
if (group.equals(inst)) { |
|
866 |
return; |
|
867 |
} else { |
|
868 |
throw new ActivationException("group already active"); |
|
869 |
} |
|
870 |
} |
|
871 |
||
872 |
if (child != null && status != CREATING) { |
|
873 |
throw new ActivationException("group not being created"); |
|
874 |
} |
|
875 |
||
876 |
group = inst; |
|
877 |
status = NORMAL; |
|
878 |
notifyAll(); |
|
879 |
} |
|
880 |
||
881 |
private void checkRemoved() throws UnknownGroupException { |
|
882 |
if (removed) { |
|
883 |
throw new UnknownGroupException("group removed"); |
|
884 |
} |
|
885 |
} |
|
886 |
||
887 |
private ObjectEntry getObjectEntry(ActivationID id) |
|
888 |
throws UnknownObjectException |
|
889 |
{ |
|
890 |
if (removed) { |
|
891 |
throw new UnknownObjectException("object's group removed"); |
|
892 |
} |
|
893 |
ObjectEntry objEntry = objects.get(id); |
|
894 |
if (objEntry == null) { |
|
895 |
throw new UnknownObjectException("object unknown"); |
|
896 |
} |
|
897 |
return objEntry; |
|
898 |
} |
|
899 |
||
900 |
synchronized void registerObject(ActivationID id, |
|
901 |
ActivationDesc desc, |
|
902 |
boolean addRecord) |
|
903 |
throws UnknownGroupException, ActivationException |
|
904 |
{ |
|
905 |
checkRemoved(); |
|
906 |
objects.put(id, new ObjectEntry(desc)); |
|
907 |
if (desc.getRestartMode() == true) { |
|
908 |
restartSet.add(id); |
|
909 |
} |
|
910 |
||
911 |
// table insertion must take place before log update |
|
9502
de183d393b77
6896297: (rmi) fix ConcurrentModificationException causing TCK failure
smarks
parents:
5506
diff
changeset
|
912 |
idTable.put(id, groupID); |
2 | 913 |
|
914 |
if (addRecord) { |
|
915 |
addLogRecord(new LogRegisterObject(id, desc)); |
|
916 |
} |
|
917 |
} |
|
918 |
||
919 |
synchronized void unregisterObject(ActivationID id, boolean addRecord) |
|
920 |
throws UnknownGroupException, ActivationException |
|
921 |
{ |
|
922 |
ObjectEntry objEntry = getObjectEntry(id); |
|
923 |
objEntry.removed = true; |
|
924 |
objects.remove(id); |
|
925 |
if (objEntry.desc.getRestartMode() == true) { |
|
926 |
restartSet.remove(id); |
|
927 |
} |
|
928 |
||
9502
de183d393b77
6896297: (rmi) fix ConcurrentModificationException causing TCK failure
smarks
parents:
5506
diff
changeset
|
929 |
// table removal must take place before log update |
de183d393b77
6896297: (rmi) fix ConcurrentModificationException causing TCK failure
smarks
parents:
5506
diff
changeset
|
930 |
idTable.remove(id); |
2 | 931 |
if (addRecord) { |
932 |
addLogRecord(new LogUnregisterObject(id)); |
|
933 |
} |
|
934 |
} |
|
935 |
||
936 |
synchronized void unregisterGroup(boolean addRecord) |
|
937 |
throws UnknownGroupException, ActivationException |
|
938 |
{ |
|
939 |
checkRemoved(); |
|
940 |
removed = true; |
|
941 |
for (Map.Entry<ActivationID,ObjectEntry> entry : |
|
942 |
objects.entrySet()) |
|
943 |
{ |
|
944 |
ActivationID id = entry.getKey(); |
|
9502
de183d393b77
6896297: (rmi) fix ConcurrentModificationException causing TCK failure
smarks
parents:
5506
diff
changeset
|
945 |
idTable.remove(id); |
2 | 946 |
ObjectEntry objEntry = entry.getValue(); |
947 |
objEntry.removed = true; |
|
948 |
} |
|
949 |
objects.clear(); |
|
950 |
restartSet.clear(); |
|
951 |
reset(); |
|
952 |
childGone(); |
|
953 |
||
954 |
// removal should be recorded before log update |
|
955 |
if (addRecord) { |
|
956 |
addLogRecord(new LogUnregisterGroup(groupID)); |
|
957 |
} |
|
958 |
} |
|
959 |
||
960 |
synchronized ActivationDesc setActivationDesc(ActivationID id, |
|
961 |
ActivationDesc desc, |
|
962 |
boolean addRecord) |
|
963 |
throws UnknownObjectException, UnknownGroupException, |
|
964 |
ActivationException |
|
965 |
{ |
|
966 |
ObjectEntry objEntry = getObjectEntry(id); |
|
967 |
ActivationDesc oldDesc = objEntry.desc; |
|
968 |
objEntry.desc = desc; |
|
969 |
if (desc.getRestartMode() == true) { |
|
970 |
restartSet.add(id); |
|
971 |
} else { |
|
972 |
restartSet.remove(id); |
|
973 |
} |
|
974 |
// restart information should be recorded before log update |
|
975 |
if (addRecord) { |
|
976 |
addLogRecord(new LogUpdateDesc(id, desc)); |
|
977 |
} |
|
978 |
||
979 |
return oldDesc; |
|
980 |
} |
|
981 |
||
982 |
synchronized ActivationDesc getActivationDesc(ActivationID id) |
|
983 |
throws UnknownObjectException, UnknownGroupException |
|
984 |
{ |
|
985 |
return getObjectEntry(id).desc; |
|
986 |
} |
|
987 |
||
988 |
synchronized ActivationGroupDesc setActivationGroupDesc( |
|
989 |
ActivationGroupID id, |
|
990 |
ActivationGroupDesc desc, |
|
991 |
boolean addRecord) |
|
992 |
throws UnknownGroupException, ActivationException |
|
993 |
{ |
|
994 |
checkRemoved(); |
|
995 |
ActivationGroupDesc oldDesc = this.desc; |
|
996 |
this.desc = desc; |
|
997 |
// state update should occur before log update |
|
998 |
if (addRecord) { |
|
999 |
addLogRecord(new LogUpdateGroupDesc(id, desc)); |
|
1000 |
} |
|
1001 |
return oldDesc; |
|
1002 |
} |
|
1003 |
||
1004 |
synchronized void inactiveGroup(long incarnation, boolean failure) |
|
1005 |
throws UnknownGroupException |
|
1006 |
{ |
|
1007 |
checkRemoved(); |
|
1008 |
if (this.incarnation != incarnation) { |
|
1009 |
throw new UnknownGroupException("invalid incarnation"); |
|
1010 |
} |
|
1011 |
||
1012 |
reset(); |
|
1013 |
if (failure) { |
|
1014 |
terminate(); |
|
1015 |
} else if (child != null && status == NORMAL) { |
|
1016 |
status = TERMINATE; |
|
1017 |
watchdog.noRestart(); |
|
1018 |
} |
|
1019 |
} |
|
1020 |
||
1021 |
synchronized void activeObject(ActivationID id, |
|
1022 |
MarshalledObject<? extends Remote> mobj) |
|
1023 |
throws UnknownObjectException |
|
1024 |
{ |
|
1025 |
getObjectEntry(id).stub = mobj; |
|
1026 |
} |
|
1027 |
||
1028 |
synchronized void inactiveObject(ActivationID id) |
|
1029 |
throws UnknownObjectException |
|
1030 |
{ |
|
1031 |
getObjectEntry(id).reset(); |
|
1032 |
} |
|
1033 |
||
1034 |
private synchronized void reset() { |
|
1035 |
group = null; |
|
1036 |
for (ObjectEntry objectEntry : objects.values()) { |
|
1037 |
objectEntry.reset(); |
|
1038 |
} |
|
1039 |
} |
|
1040 |
||
1041 |
private void childGone() { |
|
1042 |
if (child != null) { |
|
1043 |
child = null; |
|
1044 |
watchdog.dispose(); |
|
1045 |
watchdog = null; |
|
1046 |
status = NORMAL; |
|
1047 |
notifyAll(); |
|
1048 |
} |
|
1049 |
} |
|
1050 |
||
1051 |
private void terminate() { |
|
1052 |
if (child != null && status != TERMINATING) { |
|
1053 |
child.destroy(); |
|
1054 |
status = TERMINATING; |
|
1055 |
waitTime = System.currentTimeMillis() + groupTimeout; |
|
1056 |
notifyAll(); |
|
1057 |
} |
|
1058 |
} |
|
1059 |
||
12040
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1060 |
/* |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1061 |
* Fallthrough from TERMINATE to TERMINATING |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1062 |
* is intentional |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1063 |
*/ |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1064 |
@SuppressWarnings("fallthrough") |
2 | 1065 |
private void await() { |
1066 |
while (true) { |
|
1067 |
switch (status) { |
|
1068 |
case NORMAL: |
|
1069 |
return; |
|
1070 |
case TERMINATE: |
|
1071 |
terminate(); |
|
1072 |
case TERMINATING: |
|
1073 |
try { |
|
1074 |
child.exitValue(); |
|
1075 |
} catch (IllegalThreadStateException e) { |
|
1076 |
long now = System.currentTimeMillis(); |
|
1077 |
if (waitTime > now) { |
|
1078 |
try { |
|
1079 |
wait(waitTime - now); |
|
1080 |
} catch (InterruptedException ee) { |
|
1081 |
} |
|
1082 |
continue; |
|
1083 |
} |
|
1084 |
// REMIND: print message that group did not terminate? |
|
1085 |
} |
|
1086 |
childGone(); |
|
1087 |
return; |
|
1088 |
case CREATING: |
|
1089 |
try { |
|
1090 |
wait(); |
|
1091 |
} catch (InterruptedException e) { |
|
1092 |
} |
|
1093 |
} |
|
1094 |
} |
|
1095 |
} |
|
1096 |
||
1097 |
// no synchronization to avoid delay wrt getInstantiator |
|
1098 |
void shutdownFast() { |
|
1099 |
Process p = child; |
|
1100 |
if (p != null) { |
|
1101 |
p.destroy(); |
|
1102 |
} |
|
1103 |
} |
|
1104 |
||
1105 |
synchronized void shutdown() { |
|
1106 |
reset(); |
|
1107 |
terminate(); |
|
1108 |
await(); |
|
1109 |
} |
|
1110 |
||
1111 |
MarshalledObject<? extends Remote> activate(ActivationID id, |
|
1112 |
boolean force) |
|
1113 |
throws ActivationException |
|
1114 |
{ |
|
1115 |
Exception detail = null; |
|
1116 |
||
1117 |
/* |
|
1118 |
* Attempt to activate object and reattempt (several times) |
|
1119 |
* if activation fails due to communication problems. |
|
1120 |
*/ |
|
1121 |
for (int tries = MAX_TRIES; tries > 0; tries--) { |
|
1122 |
ActivationInstantiator inst; |
|
1123 |
long currentIncarnation; |
|
1124 |
||
1125 |
// look up object to activate |
|
1126 |
ObjectEntry objEntry; |
|
1127 |
synchronized (this) { |
|
1128 |
objEntry = getObjectEntry(id); |
|
1129 |
// if not forcing activation, return cached stub |
|
1130 |
if (!force && objEntry.stub != null) { |
|
1131 |
return objEntry.stub; |
|
1132 |
} |
|
1133 |
inst = getInstantiator(groupID); |
|
1134 |
currentIncarnation = incarnation; |
|
1135 |
} |
|
1136 |
||
1137 |
boolean groupInactive = false; |
|
1138 |
boolean failure = false; |
|
1139 |
// activate object |
|
1140 |
try { |
|
1141 |
return objEntry.activate(id, force, inst); |
|
1142 |
} catch (NoSuchObjectException e) { |
|
1143 |
groupInactive = true; |
|
1144 |
detail = e; |
|
1145 |
} catch (ConnectException e) { |
|
1146 |
groupInactive = true; |
|
1147 |
failure = true; |
|
1148 |
detail = e; |
|
1149 |
} catch (ConnectIOException e) { |
|
1150 |
groupInactive = true; |
|
1151 |
failure = true; |
|
1152 |
detail = e; |
|
1153 |
} catch (InactiveGroupException e) { |
|
1154 |
groupInactive = true; |
|
1155 |
detail = e; |
|
1156 |
} catch (RemoteException e) { |
|
1157 |
// REMIND: wait some here before continuing? |
|
1158 |
if (detail == null) { |
|
1159 |
detail = e; |
|
1160 |
} |
|
1161 |
} |
|
1162 |
||
1163 |
if (groupInactive) { |
|
1164 |
// group has failed or is inactive; mark inactive |
|
1165 |
try { |
|
1166 |
System.err.println( |
|
1167 |
MessageFormat.format( |
|
1168 |
getTextResource("rmid.group.inactive"), |
|
1169 |
detail.toString())); |
|
1170 |
detail.printStackTrace(); |
|
1171 |
getGroupEntry(groupID). |
|
1172 |
inactiveGroup(currentIncarnation, failure); |
|
1173 |
} catch (UnknownGroupException e) { |
|
1174 |
// not a problem |
|
1175 |
} |
|
1176 |
} |
|
1177 |
} |
|
1178 |
||
1179 |
/** |
|
1180 |
* signal that group activation failed, nested exception |
|
1181 |
* specifies what exception occurred when the group did not |
|
1182 |
* activate |
|
1183 |
*/ |
|
1184 |
throw new ActivationException("object activation failed after " + |
|
1185 |
MAX_TRIES + " tries", detail); |
|
1186 |
} |
|
1187 |
||
1188 |
/** |
|
1189 |
* Returns the instantiator for the group specified by id and |
|
1190 |
* entry. If the group is currently inactive, exec some |
|
1191 |
* bootstrap code to create the group. |
|
1192 |
*/ |
|
1193 |
private ActivationInstantiator getInstantiator(ActivationGroupID id) |
|
1194 |
throws ActivationException |
|
1195 |
{ |
|
1196 |
assert Thread.holdsLock(this); |
|
1197 |
||
1198 |
await(); |
|
1199 |
if (group != null) { |
|
1200 |
return group; |
|
1201 |
} |
|
1202 |
checkRemoved(); |
|
1203 |
boolean acquired = false; |
|
1204 |
||
1205 |
try { |
|
1206 |
groupName = Pstartgroup(); |
|
1207 |
acquired = true; |
|
1208 |
String[] argv = activationArgs(desc); |
|
1209 |
checkArgs(desc, argv); |
|
1210 |
||
1211 |
if (debugExec) { |
|
1212 |
StringBuffer sb = new StringBuffer(argv[0]); |
|
1213 |
int j; |
|
1214 |
for (j = 1; j < argv.length; j++) { |
|
1215 |
sb.append(' '); |
|
1216 |
sb.append(argv[j]); |
|
1217 |
} |
|
1218 |
System.err.println( |
|
1219 |
MessageFormat.format( |
|
1220 |
getTextResource("rmid.exec.command"), |
|
1221 |
sb.toString())); |
|
1222 |
} |
|
1223 |
||
1224 |
try { |
|
1225 |
child = Runtime.getRuntime().exec(argv); |
|
1226 |
status = CREATING; |
|
1227 |
++incarnation; |
|
1228 |
watchdog = new Watchdog(); |
|
1229 |
watchdog.start(); |
|
1230 |
addLogRecord(new LogGroupIncarnation(id, incarnation)); |
|
1231 |
||
1232 |
// handle child I/O streams before writing to child |
|
1233 |
PipeWriter.plugTogetherPair |
|
1234 |
(child.getInputStream(), System.out, |
|
1235 |
child.getErrorStream(), System.err); |
|
12040
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1236 |
try (MarshalOutputStream out = |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1237 |
new MarshalOutputStream(child.getOutputStream())) { |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1238 |
out.writeObject(id); |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1239 |
out.writeObject(desc); |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1240 |
out.writeLong(incarnation); |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
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parents:
9502
diff
changeset
|
1241 |
out.flush(); |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1242 |
} |
2 | 1243 |
|
1244 |
||
1245 |
} catch (IOException e) { |
|
1246 |
terminate(); |
|
1247 |
throw new ActivationException( |
|
1248 |
"unable to create activation group", e); |
|
1249 |
} |
|
1250 |
||
1251 |
try { |
|
1252 |
long now = System.currentTimeMillis(); |
|
1253 |
long stop = now + execTimeout; |
|
1254 |
do { |
|
1255 |
wait(stop - now); |
|
1256 |
if (group != null) { |
|
1257 |
return group; |
|
1258 |
} |
|
1259 |
now = System.currentTimeMillis(); |
|
1260 |
} while (status == CREATING && now < stop); |
|
1261 |
} catch (InterruptedException e) { |
|
1262 |
} |
|
1263 |
||
1264 |
terminate(); |
|
1265 |
throw new ActivationException( |
|
1266 |
(removed ? |
|
1267 |
"activation group unregistered" : |
|
1268 |
"timeout creating child process")); |
|
1269 |
} finally { |
|
1270 |
if (acquired) { |
|
1271 |
Vstartgroup(); |
|
1272 |
} |
|
1273 |
} |
|
1274 |
} |
|
1275 |
||
1276 |
/** |
|
1277 |
* Waits for process termination and then restarts services. |
|
1278 |
*/ |
|
1279 |
private class Watchdog extends Thread { |
|
1280 |
private final Process groupProcess = child; |
|
1281 |
private final long groupIncarnation = incarnation; |
|
1282 |
private boolean canInterrupt = true; |
|
1283 |
private boolean shouldQuit = false; |
|
1284 |
private boolean shouldRestart = true; |
|
1285 |
||
1286 |
Watchdog() { |
|
1287 |
super("WatchDog-" + groupName + "-" + incarnation); |
|
1288 |
setDaemon(true); |
|
1289 |
} |
|
1290 |
||
1291 |
public void run() { |
|
1292 |
||
1293 |
if (shouldQuit) { |
|
1294 |
return; |
|
1295 |
} |
|
1296 |
||
1297 |
/* |
|
1298 |
* Wait for the group to crash or exit. |
|
1299 |
*/ |
|
1300 |
try { |
|
1301 |
groupProcess.waitFor(); |
|
1302 |
} catch (InterruptedException exit) { |
|
1303 |
return; |
|
1304 |
} |
|
1305 |
||
1306 |
boolean restart = false; |
|
1307 |
synchronized (GroupEntry.this) { |
|
1308 |
if (shouldQuit) { |
|
1309 |
return; |
|
1310 |
} |
|
1311 |
canInterrupt = false; |
|
1312 |
interrupted(); // clear interrupt bit |
|
1313 |
/* |
|
1314 |
* Since the group crashed, we should |
|
1315 |
* reset the entry before activating objects |
|
1316 |
*/ |
|
1317 |
if (groupIncarnation == incarnation) { |
|
1318 |
restart = shouldRestart && !shuttingDown; |
|
1319 |
reset(); |
|
1320 |
childGone(); |
|
1321 |
} |
|
1322 |
} |
|
1323 |
||
1324 |
/* |
|
1325 |
* Activate those objects that require restarting |
|
1326 |
* after a crash. |
|
1327 |
*/ |
|
1328 |
if (restart) { |
|
1329 |
restartServices(); |
|
1330 |
} |
|
1331 |
} |
|
1332 |
||
1333 |
/** |
|
1334 |
* Marks this thread as one that is no longer needed. |
|
1335 |
* If the thread is in a state in which it can be interrupted, |
|
1336 |
* then the thread is interrupted. |
|
1337 |
*/ |
|
1338 |
void dispose() { |
|
1339 |
shouldQuit = true; |
|
1340 |
if (canInterrupt) { |
|
1341 |
interrupt(); |
|
1342 |
} |
|
1343 |
} |
|
1344 |
||
1345 |
/** |
|
1346 |
* Marks this thread as no longer needing to restart objects. |
|
1347 |
*/ |
|
1348 |
void noRestart() { |
|
1349 |
shouldRestart = false; |
|
1350 |
} |
|
1351 |
} |
|
1352 |
} |
|
1353 |
||
1354 |
private String[] activationArgs(ActivationGroupDesc desc) { |
|
1355 |
ActivationGroupDesc.CommandEnvironment cmdenv; |
|
1356 |
cmdenv = desc.getCommandEnvironment(); |
|
1357 |
||
1358 |
// argv is the literal command to exec |
|
12040
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1359 |
List<String> argv = new ArrayList<>(); |
2 | 1360 |
|
1361 |
// Command name/path |
|
1362 |
argv.add((cmdenv != null && cmdenv.getCommandPath() != null) |
|
1363 |
? cmdenv.getCommandPath() |
|
1364 |
: command[0]); |
|
1365 |
||
1366 |
// Group-specific command options |
|
1367 |
if (cmdenv != null && cmdenv.getCommandOptions() != null) { |
|
1368 |
argv.addAll(Arrays.asList(cmdenv.getCommandOptions())); |
|
1369 |
} |
|
1370 |
||
1371 |
// Properties become -D parameters |
|
1372 |
Properties props = desc.getPropertyOverrides(); |
|
1373 |
if (props != null) { |
|
1374 |
for (Enumeration<?> p = props.propertyNames(); |
|
1375 |
p.hasMoreElements();) |
|
1376 |
{ |
|
1377 |
String name = (String) p.nextElement(); |
|
1378 |
/* Note on quoting: it would be wrong |
|
1379 |
* here, since argv will be passed to |
|
1380 |
* Runtime.exec, which should not parse |
|
1381 |
* arguments or split on whitespace. |
|
1382 |
*/ |
|
1383 |
argv.add("-D" + name + "=" + props.getProperty(name)); |
|
1384 |
} |
|
1385 |
} |
|
1386 |
||
1387 |
/* Finally, rmid-global command options (e.g. -C options) |
|
1388 |
* and the classname |
|
1389 |
*/ |
|
1390 |
for (int i = 1; i < command.length; i++) { |
|
1391 |
argv.add(command[i]); |
|
1392 |
} |
|
1393 |
||
1394 |
String[] realArgv = new String[argv.size()]; |
|
1395 |
System.arraycopy(argv.toArray(), 0, realArgv, 0, realArgv.length); |
|
1396 |
||
1397 |
return realArgv; |
|
1398 |
} |
|
1399 |
||
1400 |
private void checkArgs(ActivationGroupDesc desc, String[] cmd) |
|
1401 |
throws SecurityException, ActivationException |
|
1402 |
{ |
|
1403 |
/* |
|
1404 |
* Check exec command using execPolicy object |
|
1405 |
*/ |
|
1406 |
if (execPolicyMethod != null) { |
|
1407 |
if (cmd == null) { |
|
1408 |
cmd = activationArgs(desc); |
|
1409 |
} |
|
1410 |
try { |
|
1411 |
execPolicyMethod.invoke(execPolicy, desc, cmd); |
|
1412 |
} catch (InvocationTargetException e) { |
|
1413 |
Throwable targetException = e.getTargetException(); |
|
1414 |
if (targetException instanceof SecurityException) { |
|
1415 |
throw (SecurityException) targetException; |
|
1416 |
} else { |
|
1417 |
throw new ActivationException( |
|
1418 |
execPolicyMethod.getName() + ": unexpected exception", |
|
1419 |
e); |
|
1420 |
} |
|
1421 |
} catch (Exception e) { |
|
1422 |
throw new ActivationException( |
|
1423 |
execPolicyMethod.getName() + ": unexpected exception", e); |
|
1424 |
} |
|
1425 |
} |
|
1426 |
} |
|
1427 |
||
1428 |
private static class ObjectEntry implements Serializable { |
|
1429 |
||
1430 |
private static final long serialVersionUID = -5500114225321357856L; |
|
1431 |
||
1432 |
/** descriptor for object */ |
|
1433 |
ActivationDesc desc; |
|
1434 |
/** the stub (if active) */ |
|
1435 |
volatile transient MarshalledObject<? extends Remote> stub = null; |
|
1436 |
volatile transient boolean removed = false; |
|
1437 |
||
1438 |
ObjectEntry(ActivationDesc desc) { |
|
1439 |
this.desc = desc; |
|
1440 |
} |
|
1441 |
||
1442 |
synchronized MarshalledObject<? extends Remote> |
|
1443 |
activate(ActivationID id, |
|
1444 |
boolean force, |
|
1445 |
ActivationInstantiator inst) |
|
1446 |
throws RemoteException, ActivationException |
|
1447 |
{ |
|
1448 |
MarshalledObject<? extends Remote> nstub = stub; |
|
1449 |
if (removed) { |
|
1450 |
throw new UnknownObjectException("object removed"); |
|
1451 |
} else if (!force && nstub != null) { |
|
1452 |
return nstub; |
|
1453 |
} |
|
1454 |
||
1455 |
nstub = inst.newInstance(id, desc); |
|
1456 |
stub = nstub; |
|
1457 |
/* |
|
1458 |
* stub could be set to null by a group reset, so return |
|
1459 |
* the newstub here to prevent returning null. |
|
1460 |
*/ |
|
1461 |
return nstub; |
|
1462 |
} |
|
1463 |
||
1464 |
void reset() { |
|
1465 |
stub = null; |
|
1466 |
} |
|
1467 |
} |
|
1468 |
||
1469 |
/** |
|
1470 |
* Add a record to the activation log. If the number of updates |
|
1471 |
* passes a predetermined threshold, record a snapshot. |
|
1472 |
*/ |
|
1473 |
private void addLogRecord(LogRecord rec) throws ActivationException { |
|
1474 |
synchronized (log) { |
|
1475 |
checkShutdown(); |
|
1476 |
try { |
|
1477 |
log.update(rec, true); |
|
1478 |
} catch (Exception e) { |
|
1479 |
numUpdates = snapshotInterval; |
|
1480 |
System.err.println(getTextResource("rmid.log.update.warning")); |
|
1481 |
e.printStackTrace(); |
|
1482 |
} |
|
1483 |
if (++numUpdates < snapshotInterval) { |
|
1484 |
return; |
|
1485 |
} |
|
1486 |
try { |
|
1487 |
log.snapshot(this); |
|
1488 |
numUpdates = 0; |
|
1489 |
} catch (Exception e) { |
|
1490 |
System.err.println( |
|
1491 |
getTextResource("rmid.log.snapshot.warning")); |
|
1492 |
e.printStackTrace(); |
|
1493 |
try { |
|
1494 |
// shutdown activation system because snapshot failed |
|
1495 |
system.shutdown(); |
|
1496 |
} catch (RemoteException ignore) { |
|
1497 |
// can't happen |
|
1498 |
} |
|
1499 |
// warn the client of the original update problem |
|
1500 |
throw new ActivationException("log snapshot failed", e); |
|
1501 |
} |
|
1502 |
} |
|
1503 |
} |
|
1504 |
||
1505 |
/** |
|
1506 |
* Handler for the log that knows how to take the initial snapshot |
|
1507 |
* and apply an update (a LogRecord) to the current state. |
|
1508 |
*/ |
|
1509 |
private static class ActLogHandler extends LogHandler { |
|
1510 |
||
1511 |
ActLogHandler() { |
|
1512 |
} |
|
1513 |
||
1514 |
public Object initialSnapshot() |
|
1515 |
{ |
|
1516 |
/** |
|
1517 |
* Return an empty Activation object. Log will update |
|
1518 |
* this object with recovered state. |
|
1519 |
*/ |
|
1520 |
return new Activation(); |
|
1521 |
} |
|
1522 |
||
1523 |
public Object applyUpdate(Object update, Object state) |
|
1524 |
throws Exception |
|
1525 |
{ |
|
1526 |
return ((LogRecord) update).apply(state); |
|
1527 |
} |
|
1528 |
||
1529 |
} |
|
1530 |
||
1531 |
/** |
|
1532 |
* Abstract class for all log records. The subclass contains |
|
1533 |
* specific update information and implements the apply method |
|
1534 |
* that applys the update information contained in the record |
|
1535 |
* to the current state. |
|
1536 |
*/ |
|
1537 |
private static abstract class LogRecord implements Serializable { |
|
1538 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
1539 |
private static final long serialVersionUID = 8395140512322687529L; |
|
1540 |
abstract Object apply(Object state) throws Exception; |
|
1541 |
} |
|
1542 |
||
1543 |
/** |
|
1544 |
* Log record for registering an object. |
|
1545 |
*/ |
|
1546 |
private static class LogRegisterObject extends LogRecord { |
|
1547 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
1548 |
private static final long serialVersionUID = -6280336276146085143L; |
|
1549 |
private ActivationID id; |
|
1550 |
private ActivationDesc desc; |
|
1551 |
||
1552 |
LogRegisterObject(ActivationID id, ActivationDesc desc) { |
|
1553 |
this.id = id; |
|
1554 |
this.desc = desc; |
|
1555 |
} |
|
1556 |
||
1557 |
Object apply(Object state) { |
|
1558 |
try { |
|
1559 |
((Activation) state).getGroupEntry(desc.getGroupID()). |
|
1560 |
registerObject(id, desc, false); |
|
1561 |
} catch (Exception ignore) { |
|
1562 |
System.err.println( |
|
1563 |
MessageFormat.format( |
|
1564 |
getTextResource("rmid.log.recover.warning"), |
|
1565 |
"LogRegisterObject")); |
|
1566 |
ignore.printStackTrace(); |
|
1567 |
} |
|
1568 |
return state; |
|
1569 |
} |
|
1570 |
} |
|
1571 |
||
1572 |
/** |
|
1573 |
* Log record for unregistering an object. |
|
1574 |
*/ |
|
1575 |
private static class LogUnregisterObject extends LogRecord { |
|
1576 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
1577 |
private static final long serialVersionUID = 6269824097396935501L; |
|
1578 |
private ActivationID id; |
|
1579 |
||
1580 |
LogUnregisterObject(ActivationID id) { |
|
1581 |
this.id = id; |
|
1582 |
} |
|
1583 |
||
1584 |
Object apply(Object state) { |
|
1585 |
try { |
|
1586 |
((Activation) state).getGroupEntry(id). |
|
1587 |
unregisterObject(id, false); |
|
1588 |
} catch (Exception ignore) { |
|
1589 |
System.err.println( |
|
1590 |
MessageFormat.format( |
|
1591 |
getTextResource("rmid.log.recover.warning"), |
|
1592 |
"LogUnregisterObject")); |
|
1593 |
ignore.printStackTrace(); |
|
1594 |
} |
|
1595 |
return state; |
|
1596 |
} |
|
1597 |
} |
|
1598 |
||
1599 |
/** |
|
1600 |
* Log record for registering a group. |
|
1601 |
*/ |
|
1602 |
private static class LogRegisterGroup extends LogRecord { |
|
1603 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
1604 |
private static final long serialVersionUID = -1966827458515403625L; |
|
1605 |
private ActivationGroupID id; |
|
1606 |
private ActivationGroupDesc desc; |
|
1607 |
||
1608 |
LogRegisterGroup(ActivationGroupID id, ActivationGroupDesc desc) { |
|
1609 |
this.id = id; |
|
1610 |
this.desc = desc; |
|
1611 |
} |
|
1612 |
||
1613 |
Object apply(Object state) { |
|
1614 |
// modify state directly; cant ask a nonexistent GroupEntry |
|
1615 |
// to register itself. |
|
1616 |
((Activation) state).groupTable.put(id, ((Activation) state).new |
|
1617 |
GroupEntry(id, desc)); |
|
1618 |
return state; |
|
1619 |
} |
|
1620 |
} |
|
1621 |
||
1622 |
/** |
|
1623 |
* Log record for udpating an activation desc |
|
1624 |
*/ |
|
1625 |
private static class LogUpdateDesc extends LogRecord { |
|
1626 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
1627 |
private static final long serialVersionUID = 545511539051179885L; |
|
1628 |
||
1629 |
private ActivationID id; |
|
1630 |
private ActivationDesc desc; |
|
1631 |
||
1632 |
LogUpdateDesc(ActivationID id, ActivationDesc desc) { |
|
1633 |
this.id = id; |
|
1634 |
this.desc = desc; |
|
1635 |
} |
|
1636 |
||
1637 |
Object apply(Object state) { |
|
1638 |
try { |
|
1639 |
((Activation) state).getGroupEntry(id). |
|
1640 |
setActivationDesc(id, desc, false); |
|
1641 |
} catch (Exception ignore) { |
|
1642 |
System.err.println( |
|
1643 |
MessageFormat.format( |
|
1644 |
getTextResource("rmid.log.recover.warning"), |
|
1645 |
"LogUpdateDesc")); |
|
1646 |
ignore.printStackTrace(); |
|
1647 |
} |
|
1648 |
return state; |
|
1649 |
} |
|
1650 |
} |
|
1651 |
||
1652 |
/** |
|
1653 |
* Log record for unregistering a group. |
|
1654 |
*/ |
|
1655 |
private static class LogUpdateGroupDesc extends LogRecord { |
|
1656 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
1657 |
private static final long serialVersionUID = -1271300989218424337L; |
|
1658 |
private ActivationGroupID id; |
|
1659 |
private ActivationGroupDesc desc; |
|
1660 |
||
1661 |
LogUpdateGroupDesc(ActivationGroupID id, ActivationGroupDesc desc) { |
|
1662 |
this.id = id; |
|
1663 |
this.desc = desc; |
|
1664 |
} |
|
1665 |
||
1666 |
Object apply(Object state) { |
|
1667 |
try { |
|
1668 |
((Activation) state).getGroupEntry(id). |
|
1669 |
setActivationGroupDesc(id, desc, false); |
|
1670 |
} catch (Exception ignore) { |
|
1671 |
System.err.println( |
|
1672 |
MessageFormat.format( |
|
1673 |
getTextResource("rmid.log.recover.warning"), |
|
1674 |
"LogUpdateGroupDesc")); |
|
1675 |
ignore.printStackTrace(); |
|
1676 |
} |
|
1677 |
return state; |
|
1678 |
} |
|
1679 |
} |
|
1680 |
||
1681 |
/** |
|
1682 |
* Log record for unregistering a group. |
|
1683 |
*/ |
|
1684 |
private static class LogUnregisterGroup extends LogRecord { |
|
1685 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
1686 |
private static final long serialVersionUID = -3356306586522147344L; |
|
1687 |
private ActivationGroupID id; |
|
1688 |
||
1689 |
LogUnregisterGroup(ActivationGroupID id) { |
|
1690 |
this.id = id; |
|
1691 |
} |
|
1692 |
||
1693 |
Object apply(Object state) { |
|
1694 |
GroupEntry entry = ((Activation) state).groupTable.remove(id); |
|
1695 |
try { |
|
1696 |
entry.unregisterGroup(false); |
|
1697 |
} catch (Exception ignore) { |
|
1698 |
System.err.println( |
|
1699 |
MessageFormat.format( |
|
1700 |
getTextResource("rmid.log.recover.warning"), |
|
1701 |
"LogUnregisterGroup")); |
|
1702 |
ignore.printStackTrace(); |
|
1703 |
} |
|
1704 |
return state; |
|
1705 |
} |
|
1706 |
} |
|
1707 |
||
1708 |
/** |
|
1709 |
* Log record for an active group incarnation |
|
1710 |
*/ |
|
1711 |
private static class LogGroupIncarnation extends LogRecord { |
|
1712 |
/** indicate compatibility with JDK 1.2 version of class */ |
|
1713 |
private static final long serialVersionUID = 4146872747377631897L; |
|
1714 |
private ActivationGroupID id; |
|
1715 |
private long inc; |
|
1716 |
||
1717 |
LogGroupIncarnation(ActivationGroupID id, long inc) { |
|
1718 |
this.id = id; |
|
1719 |
this.inc = inc; |
|
1720 |
} |
|
1721 |
||
1722 |
Object apply(Object state) { |
|
1723 |
try { |
|
1724 |
GroupEntry entry = ((Activation) state).getGroupEntry(id); |
|
1725 |
entry.incarnation = inc; |
|
1726 |
} catch (Exception ignore) { |
|
1727 |
System.err.println( |
|
1728 |
MessageFormat.format( |
|
1729 |
getTextResource("rmid.log.recover.warning"), |
|
1730 |
"LogGroupIncarnation")); |
|
1731 |
ignore.printStackTrace(); |
|
1732 |
} |
|
1733 |
return state; |
|
1734 |
} |
|
1735 |
} |
|
1736 |
||
1737 |
/** |
|
1738 |
* Initialize command to exec a default group. |
|
1739 |
*/ |
|
1740 |
private void initCommand(String[] childArgs) { |
|
1741 |
command = new String[childArgs.length + 2]; |
|
1742 |
AccessController.doPrivileged(new PrivilegedAction<Void>() { |
|
1743 |
public Void run() { |
|
1744 |
try { |
|
1745 |
command[0] = System.getProperty("java.home") + |
|
1746 |
File.separator + "bin" + File.separator + "java"; |
|
1747 |
} catch (Exception e) { |
|
1748 |
System.err.println( |
|
1749 |
getTextResource("rmid.unfound.java.home.property")); |
|
1750 |
command[0] = "java"; |
|
1751 |
} |
|
1752 |
return null; |
|
1753 |
} |
|
1754 |
}); |
|
1755 |
System.arraycopy(childArgs, 0, command, 1, childArgs.length); |
|
1756 |
command[command.length-1] = "sun.rmi.server.ActivationGroupInit"; |
|
1757 |
} |
|
1758 |
||
1759 |
private static void bomb(String error) { |
|
1760 |
System.err.println("rmid: " + error); // $NON-NLS$ |
|
1761 |
System.err.println(MessageFormat.format(getTextResource("rmid.usage"), |
|
1762 |
"rmid")); |
|
1763 |
System.exit(1); |
|
1764 |
} |
|
1765 |
||
1766 |
/** |
|
1767 |
* The default policy for checking a command before it is executed |
|
1768 |
* makes sure the appropriate com.sun.rmi.rmid.ExecPermission and |
|
1769 |
* set of com.sun.rmi.rmid.ExecOptionPermissions have been granted. |
|
1770 |
*/ |
|
1771 |
public static class DefaultExecPolicy { |
|
1772 |
||
1773 |
public void checkExecCommand(ActivationGroupDesc desc, String[] cmd) |
|
1774 |
throws SecurityException |
|
1775 |
{ |
|
1776 |
PermissionCollection perms = getExecPermissions(); |
|
1777 |
||
1778 |
/* |
|
1779 |
* Check properties overrides. |
|
1780 |
*/ |
|
1781 |
Properties props = desc.getPropertyOverrides(); |
|
1782 |
if (props != null) { |
|
1783 |
Enumeration<?> p = props.propertyNames(); |
|
1784 |
while (p.hasMoreElements()) { |
|
1785 |
String name = (String) p.nextElement(); |
|
1786 |
String value = props.getProperty(name); |
|
1787 |
String option = "-D" + name + "=" + value; |
|
1788 |
try { |
|
1789 |
checkPermission(perms, |
|
1790 |
new ExecOptionPermission(option)); |
|
1791 |
} catch (AccessControlException e) { |
|
1792 |
if (value.equals("")) { |
|
1793 |
checkPermission(perms, |
|
1794 |
new ExecOptionPermission("-D" + name)); |
|
1795 |
} else { |
|
1796 |
throw e; |
|
1797 |
} |
|
1798 |
} |
|
1799 |
} |
|
1800 |
} |
|
1801 |
||
1802 |
/* |
|
1803 |
* Check group class name (allow nothing but the default), |
|
1804 |
* code location (must be null), and data (must be null). |
|
1805 |
*/ |
|
1806 |
String groupClassName = desc.getClassName(); |
|
1807 |
if ((groupClassName != null && |
|
1808 |
!groupClassName.equals( |
|
1809 |
ActivationGroupImpl.class.getName())) || |
|
1810 |
(desc.getLocation() != null) || |
|
1811 |
(desc.getData() != null)) |
|
1812 |
{ |
|
1813 |
throw new AccessControlException( |
|
1814 |
"access denied (custom group implementation not allowed)"); |
|
1815 |
} |
|
1816 |
||
1817 |
/* |
|
1818 |
* If group descriptor has a command environment, check |
|
1819 |
* command and options. |
|
1820 |
*/ |
|
1821 |
ActivationGroupDesc.CommandEnvironment cmdenv; |
|
1822 |
cmdenv = desc.getCommandEnvironment(); |
|
1823 |
if (cmdenv != null) { |
|
1824 |
String path = cmdenv.getCommandPath(); |
|
1825 |
if (path != null) { |
|
1826 |
checkPermission(perms, new ExecPermission(path)); |
|
1827 |
} |
|
1828 |
||
1829 |
String[] options = cmdenv.getCommandOptions(); |
|
1830 |
if (options != null) { |
|
1831 |
for (String option : options) { |
|
1832 |
checkPermission(perms, |
|
1833 |
new ExecOptionPermission(option)); |
|
1834 |
} |
|
1835 |
} |
|
1836 |
} |
|
1837 |
} |
|
1838 |
||
1839 |
/** |
|
1840 |
* Prints warning message if installed Policy is the default Policy |
|
1841 |
* implementation and globally granted permissions do not include |
|
1842 |
* AllPermission or any ExecPermissions/ExecOptionPermissions. |
|
1843 |
*/ |
|
1844 |
static void checkConfiguration() { |
|
1845 |
Policy policy = |
|
1846 |
AccessController.doPrivileged(new PrivilegedAction<Policy>() { |
|
1847 |
public Policy run() { |
|
1848 |
return Policy.getPolicy(); |
|
1849 |
} |
|
1850 |
}); |
|
1851 |
if (!(policy instanceof PolicyFile)) { |
|
1852 |
return; |
|
1853 |
} |
|
1854 |
PermissionCollection perms = getExecPermissions(); |
|
1855 |
for (Enumeration<Permission> e = perms.elements(); |
|
1856 |
e.hasMoreElements();) |
|
1857 |
{ |
|
1858 |
Permission p = e.nextElement(); |
|
1859 |
if (p instanceof AllPermission || |
|
1860 |
p instanceof ExecPermission || |
|
1861 |
p instanceof ExecOptionPermission) |
|
1862 |
{ |
|
1863 |
return; |
|
1864 |
} |
|
1865 |
} |
|
1866 |
System.err.println(getTextResource("rmid.exec.perms.inadequate")); |
|
1867 |
} |
|
1868 |
||
1869 |
private static PermissionCollection getExecPermissions() { |
|
1870 |
/* |
|
1871 |
* The approach used here is taken from the similar method |
|
1872 |
* getLoaderAccessControlContext() in the class |
|
1873 |
* sun.rmi.server.LoaderHandler. |
|
1874 |
*/ |
|
1875 |
||
1876 |
// obtain permissions granted to all code in current policy |
|
1877 |
PermissionCollection perms = AccessController.doPrivileged( |
|
1878 |
new PrivilegedAction<PermissionCollection>() { |
|
1879 |
public PermissionCollection run() { |
|
1880 |
CodeSource codesource = |
|
1881 |
new CodeSource(null, (Certificate[]) null); |
|
1882 |
Policy p = Policy.getPolicy(); |
|
1883 |
if (p != null) { |
|
1884 |
return p.getPermissions(codesource); |
|
1885 |
} else { |
|
1886 |
return new Permissions(); |
|
1887 |
} |
|
1888 |
} |
|
1889 |
}); |
|
1890 |
||
1891 |
return perms; |
|
1892 |
} |
|
1893 |
||
1894 |
private static void checkPermission(PermissionCollection perms, |
|
1895 |
Permission p) |
|
1896 |
throws AccessControlException |
|
1897 |
{ |
|
1898 |
if (!perms.implies(p)) { |
|
1899 |
throw new AccessControlException( |
|
1900 |
"access denied " + p.toString()); |
|
1901 |
} |
|
1902 |
} |
|
1903 |
} |
|
1904 |
||
1905 |
/** |
|
1906 |
* Main program to start the activation system. <br> |
|
1907 |
* The usage is as follows: rmid [-port num] [-log dir]. |
|
1908 |
*/ |
|
1909 |
public static void main(String[] args) { |
|
1910 |
boolean stop = false; |
|
1911 |
||
1912 |
// Create and install the security manager if one is not installed |
|
1913 |
// already. |
|
1914 |
if (System.getSecurityManager() == null) { |
|
1915 |
System.setSecurityManager(new SecurityManager()); |
|
1916 |
} |
|
1917 |
||
1918 |
try { |
|
1919 |
int port = ActivationSystem.SYSTEM_PORT; |
|
1920 |
RMIServerSocketFactory ssf = null; |
|
1921 |
||
1922 |
/* |
|
1923 |
* If rmid has an inherited channel (meaning that it was |
|
1924 |
* launched from inetd), set the server socket factory to |
|
1925 |
* return the inherited server socket. |
|
1926 |
**/ |
|
1927 |
Channel inheritedChannel = AccessController.doPrivileged( |
|
1928 |
new PrivilegedExceptionAction<Channel>() { |
|
1929 |
public Channel run() throws IOException { |
|
1930 |
return System.inheritedChannel(); |
|
1931 |
} |
|
1932 |
}); |
|
1933 |
||
1934 |
if (inheritedChannel != null && |
|
1935 |
inheritedChannel instanceof ServerSocketChannel) |
|
1936 |
{ |
|
1937 |
/* |
|
1938 |
* Redirect System.err output to a file. |
|
1939 |
*/ |
|
1940 |
AccessController.doPrivileged( |
|
1941 |
new PrivilegedExceptionAction<Void>() { |
|
1942 |
public Void run() throws IOException { |
|
1943 |
File file = |
|
13041
8477cb6992be
7143606: File.createTempFile should be improved for temporary files created by the platform.
robm
parents:
12040
diff
changeset
|
1944 |
Files.createTempFile("rmid-err", null).toFile(); |
2 | 1945 |
PrintStream errStream = |
1946 |
new PrintStream(new FileOutputStream(file)); |
|
1947 |
System.setErr(errStream); |
|
1948 |
return null; |
|
1949 |
} |
|
1950 |
}); |
|
1951 |
||
1952 |
ServerSocket serverSocket = |
|
1953 |
((ServerSocketChannel) inheritedChannel).socket(); |
|
1954 |
port = serverSocket.getLocalPort(); |
|
1955 |
ssf = new ActivationServerSocketFactory(serverSocket); |
|
1956 |
||
1957 |
System.err.println(new Date()); |
|
1958 |
System.err.println(getTextResource( |
|
1959 |
"rmid.inherited.channel.info") + |
|
1960 |
": " + inheritedChannel); |
|
1961 |
} |
|
1962 |
||
1963 |
String log = null; |
|
12040
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
1964 |
List<String> childArgs = new ArrayList<>(); |
2 | 1965 |
|
1966 |
/* |
|
1967 |
* Parse arguments |
|
1968 |
*/ |
|
1969 |
for (int i = 0; i < args.length; i++) { |
|
1970 |
if (args[i].equals("-port")) { |
|
1971 |
if (ssf != null) { |
|
1972 |
bomb(getTextResource("rmid.syntax.port.badarg")); |
|
1973 |
} |
|
1974 |
if ((i + 1) < args.length) { |
|
1975 |
try { |
|
1976 |
port = Integer.parseInt(args[++i]); |
|
1977 |
} catch (NumberFormatException nfe) { |
|
1978 |
bomb(getTextResource("rmid.syntax.port.badnumber")); |
|
1979 |
} |
|
1980 |
} else { |
|
1981 |
bomb(getTextResource("rmid.syntax.port.missing")); |
|
1982 |
} |
|
1983 |
||
1984 |
} else if (args[i].equals("-log")) { |
|
1985 |
if ((i + 1) < args.length) { |
|
1986 |
log = args[++i]; |
|
1987 |
} else { |
|
1988 |
bomb(getTextResource("rmid.syntax.log.missing")); |
|
1989 |
} |
|
1990 |
||
1991 |
} else if (args[i].equals("-stop")) { |
|
1992 |
stop = true; |
|
1993 |
||
1994 |
} else if (args[i].startsWith("-C")) { |
|
1995 |
childArgs.add(args[i].substring(2)); |
|
1996 |
||
1997 |
} else { |
|
1998 |
bomb(MessageFormat.format( |
|
1999 |
getTextResource("rmid.syntax.illegal.option"), |
|
2000 |
args[i])); |
|
2001 |
} |
|
2002 |
} |
|
2003 |
||
2004 |
if (log == null) { |
|
2005 |
if (ssf != null) { |
|
2006 |
bomb(getTextResource("rmid.syntax.log.required")); |
|
2007 |
} else { |
|
2008 |
log = "log"; |
|
2009 |
} |
|
2010 |
} |
|
2011 |
||
2012 |
debugExec = AccessController.doPrivileged( |
|
2013 |
new GetBooleanAction("sun.rmi.server.activation.debugExec")); |
|
2014 |
||
2015 |
/** |
|
2016 |
* Determine class name for activation exec policy (if any). |
|
2017 |
*/ |
|
2018 |
String execPolicyClassName = AccessController.doPrivileged( |
|
2019 |
new GetPropertyAction("sun.rmi.activation.execPolicy", null)); |
|
2020 |
if (execPolicyClassName == null) { |
|
2021 |
if (!stop) { |
|
2022 |
DefaultExecPolicy.checkConfiguration(); |
|
2023 |
} |
|
2024 |
execPolicyClassName = "default"; |
|
2025 |
} |
|
2026 |
||
2027 |
/** |
|
2028 |
* Initialize method for activation exec policy. |
|
2029 |
*/ |
|
2030 |
if (!execPolicyClassName.equals("none")) { |
|
2031 |
if (execPolicyClassName.equals("") || |
|
2032 |
execPolicyClassName.equals("default")) |
|
2033 |
{ |
|
2034 |
execPolicyClassName = DefaultExecPolicy.class.getName(); |
|
2035 |
} |
|
2036 |
||
2037 |
try { |
|
12040
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
2038 |
Class<?> execPolicyClass = getRMIClass(execPolicyClassName); |
2 | 2039 |
execPolicy = execPolicyClass.newInstance(); |
2040 |
execPolicyMethod = |
|
2041 |
execPolicyClass.getMethod("checkExecCommand", |
|
2042 |
ActivationGroupDesc.class, |
|
2043 |
String[].class); |
|
2044 |
} catch (Exception e) { |
|
2045 |
if (debugExec) { |
|
2046 |
System.err.println( |
|
2047 |
getTextResource("rmid.exec.policy.exception")); |
|
2048 |
e.printStackTrace(); |
|
2049 |
} |
|
2050 |
bomb(getTextResource("rmid.exec.policy.invalid")); |
|
2051 |
} |
|
2052 |
} |
|
2053 |
||
2054 |
if (stop == true) { |
|
2055 |
final int finalPort = port; |
|
2056 |
AccessController.doPrivileged(new PrivilegedAction<Void>() { |
|
2057 |
public Void run() { |
|
2058 |
System.setProperty("java.rmi.activation.port", |
|
2059 |
Integer.toString(finalPort)); |
|
2060 |
return null; |
|
2061 |
} |
|
2062 |
}); |
|
2063 |
ActivationSystem system = ActivationGroup.getSystem(); |
|
2064 |
system.shutdown(); |
|
2065 |
System.exit(0); |
|
2066 |
} |
|
2067 |
||
2068 |
/* |
|
2069 |
* Fix for 4173960: Create and initialize activation using |
|
2070 |
* a static method, startActivation, which will build the |
|
2071 |
* Activation state in two ways: if when rmid is run, no |
|
2072 |
* log file is found, the ActLogHandler.recover(...) |
|
2073 |
* method will create a new Activation instance. |
|
2074 |
* Alternatively, if a logfile is available, a serialized |
|
2075 |
* instance of activation will be read from the log's |
|
2076 |
* snapshot file. Log updates will be applied to this |
|
2077 |
* Activation object until rmid's state has been fully |
|
2078 |
* recovered. In either case, only one instance of |
|
2079 |
* Activation is created. |
|
2080 |
*/ |
|
2081 |
startActivation(port, ssf, log, |
|
2082 |
childArgs.toArray(new String[childArgs.size()])); |
|
2083 |
||
2084 |
// prevent activator from exiting |
|
2085 |
while (true) { |
|
2086 |
try { |
|
2087 |
Thread.sleep(Long.MAX_VALUE); |
|
2088 |
} catch (InterruptedException e) { |
|
2089 |
} |
|
2090 |
} |
|
2091 |
} catch (Exception e) { |
|
2092 |
System.err.println( |
|
2093 |
MessageFormat.format( |
|
2094 |
getTextResource("rmid.unexpected.exception"), e)); |
|
2095 |
e.printStackTrace(); |
|
2096 |
} |
|
2097 |
System.exit(1); |
|
2098 |
} |
|
2099 |
||
2100 |
/** |
|
2101 |
* Retrieves text resources from the locale-specific properties file. |
|
2102 |
*/ |
|
2103 |
private static String getTextResource(String key) { |
|
2104 |
if (Activation.resources == null) { |
|
2105 |
try { |
|
2106 |
Activation.resources = ResourceBundle.getBundle( |
|
2107 |
"sun.rmi.server.resources.rmid"); |
|
2108 |
} catch (MissingResourceException mre) { |
|
2109 |
} |
|
2110 |
if (Activation.resources == null) { |
|
2111 |
// throwing an Error is a bit extreme, methinks |
|
2112 |
return ("[missing resource file: " + key + "]"); |
|
2113 |
} |
|
2114 |
} |
|
2115 |
||
2116 |
String val = null; |
|
2117 |
try { |
|
2118 |
val = Activation.resources.getString (key); |
|
2119 |
} catch (MissingResourceException mre) { |
|
2120 |
} |
|
2121 |
||
2122 |
if (val == null) { |
|
2123 |
return ("[missing resource: " + key + "]"); |
|
2124 |
} else { |
|
2125 |
return val; |
|
2126 |
} |
|
2127 |
} |
|
2128 |
||
12040
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
2129 |
@SuppressWarnings("deprecation") |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
2130 |
private static Class<?> getRMIClass(String execPolicyClassName) throws Exception { |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
2131 |
return RMIClassLoader.loadClass(execPolicyClassName); |
558b0e0d5910
7146763: Warnings cleanup in the sun.rmi and related packages
khazra
parents:
9502
diff
changeset
|
2132 |
} |
2 | 2133 |
/* |
2134 |
* Dijkstra semaphore operations to limit the number of subprocesses |
|
2135 |
* rmid attempts to make at once. |
|
2136 |
*/ |
|
2137 |
/** |
|
2138 |
* Acquire the group semaphore and return a group name. Each |
|
2139 |
* Pstartgroup must be followed by a Vstartgroup. The calling thread |
|
2140 |
* will wait until there are fewer than <code>N</code> other threads |
|
2141 |
* holding the group semaphore. The calling thread will then acquire |
|
2142 |
* the semaphore and return. |
|
2143 |
*/ |
|
2144 |
private synchronized String Pstartgroup() throws ActivationException { |
|
2145 |
while (true) { |
|
2146 |
checkShutdown(); |
|
2147 |
// Wait until positive, then decrement. |
|
2148 |
if (groupSemaphore > 0) { |
|
2149 |
groupSemaphore--; |
|
2150 |
return "Group-" + groupCounter++; |
|
2151 |
} |
|
2152 |
||
2153 |
try { |
|
2154 |
wait(); |
|
2155 |
} catch (InterruptedException e) { |
|
2156 |
} |
|
2157 |
} |
|
2158 |
} |
|
2159 |
||
2160 |
/** |
|
2161 |
* Release the group semaphore. Every P operation must be |
|
2162 |
* followed by a V operation. This may cause another thread to |
|
2163 |
* wake up and return from its P operation. |
|
2164 |
*/ |
|
2165 |
private synchronized void Vstartgroup() { |
|
2166 |
// Increment and notify a waiter (not necessarily FIFO). |
|
2167 |
groupSemaphore++; |
|
2168 |
notifyAll(); |
|
2169 |
} |
|
2170 |
||
2171 |
/** |
|
2172 |
* A server socket factory to use when rmid is launched via 'inetd' |
|
2173 |
* with 'wait' status. This socket factory's 'createServerSocket' |
|
2174 |
* method returns the server socket specified during construction that |
|
2175 |
* is specialized to delay accepting requests until the |
|
2176 |
* 'initDone' flag is 'true'. The server socket supplied to |
|
2177 |
* the constructor should be the server socket obtained from the |
|
2178 |
* ServerSocketChannel returned from the 'System.inheritedChannel' |
|
2179 |
* method. |
|
2180 |
**/ |
|
2181 |
private static class ActivationServerSocketFactory |
|
2182 |
implements RMIServerSocketFactory |
|
2183 |
{ |
|
2184 |
private final ServerSocket serverSocket; |
|
2185 |
||
2186 |
/** |
|
2187 |
* Constructs an 'ActivationServerSocketFactory' with the specified |
|
2188 |
* 'serverSocket'. |
|
2189 |
**/ |
|
2190 |
ActivationServerSocketFactory(ServerSocket serverSocket) { |
|
2191 |
this.serverSocket = serverSocket; |
|
2192 |
} |
|
2193 |
||
2194 |
/** |
|
2195 |
* Returns the server socket specified during construction wrapped |
|
2196 |
* in a 'DelayedAcceptServerSocket'. |
|
2197 |
**/ |
|
2198 |
public ServerSocket createServerSocket(int port) |
|
2199 |
throws IOException |
|
2200 |
{ |
|
2201 |
return new DelayedAcceptServerSocket(serverSocket); |
|
2202 |
} |
|
2203 |
||
2204 |
} |
|
2205 |
||
2206 |
/** |
|
2207 |
* A server socket that delegates all public methods to the underlying |
|
2208 |
* server socket specified at construction. The accept method is |
|
2209 |
* overridden to delay calling accept on the underlying server socket |
|
2210 |
* until the 'initDone' flag is 'true'. |
|
2211 |
**/ |
|
2212 |
private static class DelayedAcceptServerSocket extends ServerSocket { |
|
2213 |
||
2214 |
private final ServerSocket serverSocket; |
|
2215 |
||
2216 |
DelayedAcceptServerSocket(ServerSocket serverSocket) |
|
2217 |
throws IOException |
|
2218 |
{ |
|
2219 |
this.serverSocket = serverSocket; |
|
2220 |
} |
|
2221 |
||
2222 |
public void bind(SocketAddress endpoint) throws IOException { |
|
2223 |
serverSocket.bind(endpoint); |
|
2224 |
} |
|
2225 |
||
2226 |
public void bind(SocketAddress endpoint, int backlog) |
|
2227 |
throws IOException |
|
2228 |
{ |
|
2229 |
serverSocket.bind(endpoint, backlog); |
|
2230 |
} |
|
2231 |
||
2232 |
public InetAddress getInetAddress() { |
|
2233 |
return serverSocket.getInetAddress(); |
|
2234 |
} |
|
2235 |
||
2236 |
public int getLocalPort() { |
|
2237 |
return serverSocket.getLocalPort(); |
|
2238 |
} |
|
2239 |
||
2240 |
public SocketAddress getLocalSocketAddress() { |
|
2241 |
return serverSocket.getLocalSocketAddress(); |
|
2242 |
} |
|
2243 |
||
2244 |
/** |
|
2245 |
* Delays calling accept on the underlying server socket until the |
|
2246 |
* remote service is bound in the registry. |
|
2247 |
**/ |
|
2248 |
public Socket accept() throws IOException { |
|
2249 |
synchronized (initLock) { |
|
2250 |
try { |
|
2251 |
while (!initDone) { |
|
2252 |
initLock.wait(); |
|
2253 |
} |
|
2254 |
} catch (InterruptedException ignore) { |
|
2255 |
throw new AssertionError(ignore); |
|
2256 |
} |
|
2257 |
} |
|
2258 |
return serverSocket.accept(); |
|
2259 |
} |
|
2260 |
||
2261 |
public void close() throws IOException { |
|
2262 |
serverSocket.close(); |
|
2263 |
} |
|
2264 |
||
2265 |
public ServerSocketChannel getChannel() { |
|
2266 |
return serverSocket.getChannel(); |
|
2267 |
} |
|
2268 |
||
2269 |
public boolean isBound() { |
|
2270 |
return serverSocket.isBound(); |
|
2271 |
} |
|
2272 |
||
2273 |
public boolean isClosed() { |
|
2274 |
return serverSocket.isClosed(); |
|
2275 |
} |
|
2276 |
||
2277 |
public void setSoTimeout(int timeout) |
|
2278 |
throws SocketException |
|
2279 |
{ |
|
2280 |
serverSocket.setSoTimeout(timeout); |
|
2281 |
} |
|
2282 |
||
2283 |
public int getSoTimeout() throws IOException { |
|
2284 |
return serverSocket.getSoTimeout(); |
|
2285 |
} |
|
2286 |
||
2287 |
public void setReuseAddress(boolean on) throws SocketException { |
|
2288 |
serverSocket.setReuseAddress(on); |
|
2289 |
} |
|
2290 |
||
2291 |
public boolean getReuseAddress() throws SocketException { |
|
2292 |
return serverSocket.getReuseAddress(); |
|
2293 |
} |
|
2294 |
||
2295 |
public String toString() { |
|
2296 |
return serverSocket.toString(); |
|
2297 |
} |
|
2298 |
||
2299 |
public void setReceiveBufferSize(int size) |
|
2300 |
throws SocketException |
|
2301 |
{ |
|
2302 |
serverSocket.setReceiveBufferSize(size); |
|
2303 |
} |
|
2304 |
||
2305 |
public int getReceiveBufferSize() |
|
2306 |
throws SocketException |
|
2307 |
{ |
|
2308 |
return serverSocket.getReceiveBufferSize(); |
|
2309 |
} |
|
2310 |
} |
|
2311 |
} |
|
2312 |
||
2313 |
/** |
|
2314 |
* PipeWriter plugs together two pairs of input and output streams by |
|
2315 |
* providing readers for input streams and writing through to |
|
2316 |
* appropriate output streams. Both output streams are annotated on a |
|
2317 |
* per-line basis. |
|
2318 |
* |
|
2319 |
* @author Laird Dornin, much code borrowed from Peter Jones, Ken |
|
2320 |
* Arnold and Ann Wollrath. |
|
2321 |
*/ |
|
2322 |
class PipeWriter implements Runnable { |
|
2323 |
||
2324 |
/** stream used for buffering lines */ |
|
2325 |
private ByteArrayOutputStream bufOut; |
|
2326 |
||
2327 |
/** count since last separator */ |
|
2328 |
private int cLast; |
|
2329 |
||
2330 |
/** current chunk of input being compared to lineSeparator.*/ |
|
2331 |
private byte[] currSep; |
|
2332 |
||
2333 |
private PrintWriter out; |
|
2334 |
private InputStream in; |
|
2335 |
||
2336 |
private String pipeString; |
|
2337 |
private String execString; |
|
2338 |
||
2339 |
private static String lineSeparator; |
|
2340 |
private static int lineSeparatorLength; |
|
2341 |
||
2342 |
private static int numExecs = 0; |
|
2343 |
||
2344 |
static { |
|
2345 |
lineSeparator = AccessController.doPrivileged( |
|
2346 |
new GetPropertyAction("line.separator")); |
|
2347 |
lineSeparatorLength = lineSeparator.length(); |
|
2348 |
} |
|
2349 |
||
2350 |
/** |
|
2351 |
* Create a new PipeWriter object. All methods of PipeWriter, |
|
2352 |
* except plugTogetherPair, are only accesible to PipeWriter |
|
2353 |
* itself. Synchronization is unnecessary on functions that will |
|
2354 |
* only be used internally in PipeWriter. |
|
2355 |
* |
|
2356 |
* @param in input stream from which pipe input flows |
|
2357 |
* @param out output stream to which log messages will be sent |
|
2358 |
* @param dest String which tags output stream as 'out' or 'err' |
|
2359 |
* @param nExecs number of execed processes, Activation groups. |
|
2360 |
*/ |
|
2361 |
private PipeWriter |
|
2362 |
(InputStream in, OutputStream out, String tag, int nExecs) { |
|
2363 |
||
2364 |
this.in = in; |
|
2365 |
this.out = new PrintWriter(out); |
|
2366 |
||
2367 |
bufOut = new ByteArrayOutputStream(); |
|
2368 |
currSep = new byte[lineSeparatorLength]; |
|
2369 |
||
2370 |
/* set unique pipe/pair annotations */ |
|
2371 |
execString = ":ExecGroup-" + |
|
2372 |
Integer.toString(nExecs) + ':' + tag + ':'; |
|
2373 |
} |
|
2374 |
||
2375 |
/** |
|
2376 |
* Create a thread to listen and read from input stream, in. buffer |
|
2377 |
* the data that is read until a marker which equals lineSeparator |
|
2378 |
* is read. Once such a string has been discovered; write out an |
|
2379 |
* annotation string followed by the buffered data and a line |
|
2380 |
* separator. |
|
2381 |
*/ |
|
2382 |
public void run() { |
|
2383 |
byte[] buf = new byte[256]; |
|
2384 |
int count; |
|
2385 |
||
2386 |
try { |
|
2387 |
/* read bytes till there are no more. */ |
|
2388 |
while ((count = in.read(buf)) != -1) { |
|
2389 |
write(buf, 0, count); |
|
2390 |
} |
|
2391 |
||
2392 |
/* flush internal buffer... may not have ended on a line |
|
2393 |
* separator, we also need a last annotation if |
|
2394 |
* something was left. |
|
2395 |
*/ |
|
2396 |
String lastInBuffer = bufOut.toString(); |
|
2397 |
bufOut.reset(); |
|
2398 |
if (lastInBuffer.length() > 0) { |
|
2399 |
out.println (createAnnotation() + lastInBuffer); |
|
2400 |
out.flush(); // add a line separator |
|
2401 |
// to make output nicer |
|
2402 |
} |
|
2403 |
||
2404 |
} catch (IOException e) { |
|
2405 |
} |
|
2406 |
} |
|
2407 |
||
2408 |
/** |
|
2409 |
* Write a subarray of bytes. Pass each through write byte method. |
|
2410 |
*/ |
|
2411 |
private void write(byte b[], int off, int len) throws IOException { |
|
2412 |
||
2413 |
if (len < 0) { |
|
2414 |
throw new ArrayIndexOutOfBoundsException(len); |
|
2415 |
} |
|
2416 |
for (int i = 0; i < len; ++ i) { |
|
2417 |
write(b[off + i]); |
|
2418 |
} |
|
2419 |
} |
|
2420 |
||
2421 |
/** |
|
2422 |
* Write a byte of data to the stream. If we have not matched a |
|
2423 |
* line separator string, then the byte is appended to the internal |
|
2424 |
* buffer. If we have matched a line separator, then the currently |
|
2425 |
* buffered line is sent to the output writer with a prepended |
|
2426 |
* annotation string. |
|
2427 |
*/ |
|
2428 |
private void write(byte b) throws IOException { |
|
2429 |
int i = 0; |
|
2430 |
||
2431 |
/* shift current to the left */ |
|
2432 |
for (i = 1 ; i < (currSep.length); i ++) { |
|
2433 |
currSep[i-1] = currSep[i]; |
|
2434 |
} |
|
2435 |
currSep[i-1] = b; |
|
2436 |
bufOut.write(b); |
|
2437 |
||
2438 |
/* enough characters for a separator? */ |
|
2439 |
if ( (cLast >= (lineSeparatorLength - 1)) && |
|
2440 |
(lineSeparator.equals(new String(currSep))) ) { |
|
2441 |
||
2442 |
cLast = 0; |
|
2443 |
||
2444 |
/* write prefix through to underlying byte stream */ |
|
2445 |
out.print(createAnnotation() + bufOut.toString()); |
|
2446 |
out.flush(); |
|
2447 |
bufOut.reset(); |
|
2448 |
||
2449 |
if (out.checkError()) { |
|
2450 |
throw new IOException |
|
2451 |
("PipeWriter: IO Exception when"+ |
|
2452 |
" writing to output stream."); |
|
2453 |
} |
|
2454 |
||
2455 |
} else { |
|
2456 |
cLast++; |
|
2457 |
} |
|
2458 |
} |
|
2459 |
||
2460 |
/** |
|
2461 |
* Create an annotation string to be printed out after |
|
2462 |
* a new line and end of stream. |
|
2463 |
*/ |
|
2464 |
private String createAnnotation() { |
|
2465 |
||
2466 |
/* construct prefix for log messages: |
|
2467 |
* date/time stamp... |
|
2468 |
*/ |
|
2469 |
return ((new Date()).toString() + |
|
2470 |
/* ... print pair # ... */ |
|
2471 |
(execString)); |
|
2472 |
} |
|
2473 |
||
2474 |
/** |
|
2475 |
* Allow plugging together two pipes at a time, to associate |
|
2476 |
* output from an execed process. This is the only publicly |
|
2477 |
* accessible method of this object; this helps ensure that |
|
2478 |
* synchronization will not be an issue in the annotation |
|
2479 |
* process. |
|
2480 |
* |
|
2481 |
* @param in input stream from which pipe input comes |
|
2482 |
* @param out output stream to which log messages will be sent |
|
2483 |
* @param in1 input stream from which pipe input comes |
|
2484 |
* @param out1 output stream to which log messages will be sent |
|
2485 |
*/ |
|
2486 |
static void plugTogetherPair(InputStream in, |
|
2487 |
OutputStream out, |
|
2488 |
InputStream in1, |
|
2489 |
OutputStream out1) { |
|
2490 |
Thread inThread = null; |
|
2491 |
Thread outThread = null; |
|
2492 |
||
2493 |
int nExecs = getNumExec(); |
|
2494 |
||
2495 |
/* start RMI threads to read output from child process */ |
|
2496 |
inThread = AccessController.doPrivileged( |
|
2497 |
new NewThreadAction(new PipeWriter(in, out, "out", nExecs), |
|
2498 |
"out", true)); |
|
2499 |
outThread = AccessController.doPrivileged( |
|
2500 |
new NewThreadAction(new PipeWriter(in1, out1, "err", nExecs), |
|
2501 |
"err", true)); |
|
2502 |
inThread.start(); |
|
2503 |
outThread.start(); |
|
2504 |
} |
|
2505 |
||
2506 |
private static synchronized int getNumExec() { |
|
2507 |
return numExecs++; |
|
2508 |
} |
|
2509 |
} |