1 /*

     2  * Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 package sun.management.snmp.jvminstr;

    26 

    27 // java imports

    28 //

    29 import com.sun.jmx.mbeanserver.Util;

    30 import java.io.Serializable;

    31 import java.lang.management.RuntimeMXBean;

    32 import java.lang.management.ManagementFactory;

    33 import java.util.List;

    34 import java.util.Map;

    35 

    36 // jmx imports

    37 //

    38 import javax.management.MBeanServer;

    39 import com.sun.jmx.snmp.SnmpString;

    40 import com.sun.jmx.snmp.SnmpStatusException;

    41 

    42 // jdmk imports

    43 //

    44 import com.sun.jmx.snmp.agent.SnmpMib;

    45 

    46 import sun.management.snmp.jvmmib.JvmRuntimeMBean;

    47 import sun.management.snmp.jvmmib.EnumJvmRTBootClassPathSupport;

    48 import sun.management.snmp.util.JvmContextFactory;

    49 

    50 /**

    51  * The class is used for implementing the "JvmRuntime" group.

    52  */

    53 public class JvmRuntimeImpl implements JvmRuntimeMBean {

    54 

    55     /**

    56      * Variable for storing the value of "JvmRTBootClassPathSupport".

    57      *

    58      * "Indicates whether the Java virtual machine supports the

    59      * boot class path mechanism used by the system class loader

    60      * to search for class files.

    61      *

    62      * See java.management.RuntimeMXBean.isBootClassPathSupported()

    63      * "

    64      *

    65      */

    66     static final EnumJvmRTBootClassPathSupport

    67         JvmRTBootClassPathSupportSupported =

    68         new EnumJvmRTBootClassPathSupport("supported");

    69     static final EnumJvmRTBootClassPathSupport

    70         JvmRTBootClassPathSupportUnSupported =

    71         new EnumJvmRTBootClassPathSupport("unsupported");

    72 

    73     /**

    74      * Constructor for the "JvmRuntime" group.

    75      * If the group contains a table, the entries created through an SNMP SET

    76      * will not be registered in Java DMK.

    77      */

    78     public JvmRuntimeImpl(SnmpMib myMib) {

    79 

    80     }

    81 

    82 

    83     /**

    84      * Constructor for the "JvmRuntime" group.

    85      * If the group contains a table, the entries created through an SNMP SET

    86      * will be AUTOMATICALLY REGISTERED in Java DMK.

    87      */

    88     public JvmRuntimeImpl(SnmpMib myMib, MBeanServer server) {

    89 

    90     }

    91 

    92     static RuntimeMXBean getRuntimeMXBean() {

    93         return ManagementFactory.getRuntimeMXBean();

    94     }

    95 

    96     private static String validDisplayStringTC(String str) {

    97         return JVM_MANAGEMENT_MIB_IMPL.validDisplayStringTC(str);

    98     }

    99 

   100     private static String validPathElementTC(String str) {

   101         return JVM_MANAGEMENT_MIB_IMPL.validPathElementTC(str);

   102     }

   103 

   104     private static String validJavaObjectNameTC(String str) {

   105         return JVM_MANAGEMENT_MIB_IMPL.validJavaObjectNameTC(str);

   106     }

   107 

   108 

   109     static String[] splitPath(String path) {

   110         final String[] items = path.split(java.io.File.pathSeparator);

   111         // for (int i=0;i<items.length;i++) {

   112         //    items[i]=validPathElementTC(items[i]);

   113         // }

   114         return items;

   115     }

   116 

   117     static String[] getClassPath(Object userData) {

   118         final Map<Object, Object> m =

   119                 Util.cast((userData instanceof Map)?userData:null);

   120         final String tag = "JvmRuntime.getClassPath";

   121 

   122         // If the list is in the cache, simply return it.

   123         //

   124         if (m != null) {

   125             final String[] cached = (String[])m.get(tag);

   126             if (cached != null) return cached;

   127         }

   128 

   129         final String[] args = splitPath(getRuntimeMXBean().getClassPath());

   130 

   131         if (m != null) m.put(tag,args);

   132         return args;

   133     }

   134 

   135     static String[] getBootClassPath(Object userData) {

   136         if (!getRuntimeMXBean().isBootClassPathSupported())

   137         return new String[0];

   138 

   139         final Map<Object, Object> m =

   140                 Util.cast((userData instanceof Map)?userData:null);

   141         final String tag = "JvmRuntime.getBootClassPath";

   142 

   143         // If the list is in the cache, simply return it.

   144         //

   145         if (m != null) {

   146             final String[] cached = (String[])m.get(tag);

   147             if (cached != null) return cached;

   148         }

   149 

   150         final String[] args = splitPath(getRuntimeMXBean().getBootClassPath());

   151 

   152         if (m != null) m.put(tag,args);

   153         return args;

   154     }

   155 

   156     static String[] getLibraryPath(Object userData) {

   157         final Map<Object, Object> m =

   158                 Util.cast((userData instanceof Map)?userData:null);

   159         final String tag = "JvmRuntime.getLibraryPath";

   160 

   161         // If the list is in the cache, simply return it.

   162         //

   163         if (m != null) {

   164             final String[] cached = (String[])m.get(tag);

   165             if (cached != null) return cached;

   166         }

   167 

   168         final String[] args = splitPath(getRuntimeMXBean().getLibraryPath());

   169 

   170         if (m != null) m.put(tag,args);

   171         return args;

   172     }

   173 

   174     static String[] getInputArguments(Object userData) {

   175         final Map<Object, Object> m =

   176                 Util.cast((userData instanceof Map)?userData:null);

   177         final String tag = "JvmRuntime.getInputArguments";

   178 

   179         // If the list is in the cache, simply return it.

   180         //

   181         if (m != null) {

   182             final String[] cached = (String[])m.get(tag);

   183             if (cached != null) return cached;

   184         }

   185 

   186         final List<String> l = getRuntimeMXBean().getInputArguments();

   187         final String[] args = l.toArray(new String[0]);

   188 

   189         if (m != null) m.put(tag,args);

   190         return args;

   191     }

   192 

   193     /**

   194      * Getter for the "JvmRTSpecVendor" variable.

   195      */

   196     public String getJvmRTSpecVendor() throws SnmpStatusException {

   197         return validDisplayStringTC(getRuntimeMXBean().getSpecVendor());

   198     }

   199 

   200     /**

   201      * Getter for the "JvmRTSpecName" variable.

   202      */

   203     public String getJvmRTSpecName() throws SnmpStatusException {

   204         return validDisplayStringTC(getRuntimeMXBean().getSpecName());

   205     }

   206 

   207     /**

   208      * Getter for the "JvmRTVersion" variable.

   209      */

   210     public String getJvmRTVMVersion() throws SnmpStatusException {

   211         return validDisplayStringTC(getRuntimeMXBean().getVmVersion());

   212     }

   213 

   214     /**

   215      * Getter for the "JvmRTVendor" variable.

   216      */

   217     public String getJvmRTVMVendor() throws SnmpStatusException {

   218         return validDisplayStringTC(getRuntimeMXBean().getVmVendor());

   219     }

   220 

   221     /**

   222      * Getter for the "JvmRTManagementSpecVersion" variable.

   223      */

   224     public String getJvmRTManagementSpecVersion() throws SnmpStatusException {

   225         return validDisplayStringTC(getRuntimeMXBean().

   226                                     getManagementSpecVersion());

   227     }

   228 

   229     /**

   230      * Getter for the "JvmRTVMName" variable.

   231      */

   232     public String getJvmRTVMName() throws SnmpStatusException {

   233         return validJavaObjectNameTC(getRuntimeMXBean().getVmName());

   234     }

   235 

   236 

   237     /**

   238      * Getter for the "JvmRTInputArgsCount" variable.

   239      */

   240     public Integer getJvmRTInputArgsCount() throws SnmpStatusException {

   241 

   242         final String[] args = getInputArguments(JvmContextFactory.

   243                                                 getUserData());

   244         return args.length;

   245     }

   246 

   247     /**

   248      * Getter for the "JvmRTBootClassPathSupport" variable.

   249      */

   250     public EnumJvmRTBootClassPathSupport getJvmRTBootClassPathSupport()

   251         throws SnmpStatusException {

   252         if(getRuntimeMXBean().isBootClassPathSupported())

   253             return JvmRTBootClassPathSupportSupported;

   254         else

   255             return JvmRTBootClassPathSupportUnSupported;

   256     }

   257 

   258     /**

   259      * Getter for the "JvmRTUptimeMs" variable.

   260      */

   261     public Long getJvmRTUptimeMs() throws SnmpStatusException {

   262         return getRuntimeMXBean().getUptime();

   263     }

   264 

   265     /**

   266      * Getter for the "JvmRTStartTimeMs" variable.

   267      */

   268     public Long getJvmRTStartTimeMs() throws SnmpStatusException {

   269         return getRuntimeMXBean().getStartTime();

   270     }

   271 

   272     /**

   273      * Getter for the "JvmRTSpecVersion" variable.

   274      */

   275     public String getJvmRTSpecVersion() throws SnmpStatusException {

   276         return validDisplayStringTC(getRuntimeMXBean().getSpecVersion());

   277     }

   278 

   279     /**

   280      * Getter for the "JvmRTName" variable.

   281      */

   282     public String getJvmRTName() throws SnmpStatusException {

   283         return validDisplayStringTC(getRuntimeMXBean().getName());

   284     }

   285 

   286 }