1 /* 2 * Copyright (c) 2003, 2004, 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 java.io.Serializable; 30 import java.lang.management.ManagementFactory; 31 import java.lang.management.CompilationMXBean; 32 33 // jmx imports 34 // 35 import javax.management.MBeanServer; 36 import com.sun.jmx.snmp.SnmpString; 37 import com.sun.jmx.snmp.SnmpStatusException; 38 39 // jdmk imports 40 // 41 import com.sun.jmx.snmp.agent.SnmpMib; 42 43 import sun.management.snmp.jvmmib.JvmCompilationMBean; 44 import sun.management.snmp.jvmmib.EnumJvmJITCompilerTimeMonitoring; 45 import sun.management.snmp.util.MibLogger; 46 47 /** 48 * The class is used for implementing the "JvmCompilation" group. 49 */ 50 public class JvmCompilationImpl implements JvmCompilationMBean { 51 52 /** 53 * Variable for storing the value of "JvmJITCompilerTimeMonitoring". 54 * 55 * "Indicates whether the Java virtual machine supports 56 * compilation time monitoring. 57 * 58 * See java.management.CompilationMXBean. 59 * isCompilationTimeMonitoringSupported() 60 * " 61 * 62 */ 63 static final EnumJvmJITCompilerTimeMonitoring 64 JvmJITCompilerTimeMonitoringSupported = 65 new EnumJvmJITCompilerTimeMonitoring("supported"); 66 static final EnumJvmJITCompilerTimeMonitoring 67 JvmJITCompilerTimeMonitoringUnsupported = 68 new EnumJvmJITCompilerTimeMonitoring("unsupported"); 69 70 71 /** 72 * Constructor for the "JvmCompilation" group. 73 * If the group contains a table, the entries created through an SNMP SET 74 * will not be registered in Java DMK. 75 */ 76 public JvmCompilationImpl(SnmpMib myMib) { 77 } 78 79 80 /** 81 * Constructor for the "JvmCompilation" group. 82 * If the group contains a table, the entries created through an SNMP 83 * SET will be AUTOMATICALLY REGISTERED in Java DMK. 84 */ 85 public JvmCompilationImpl(SnmpMib myMib, MBeanServer server) { 86 } 87 88 private static CompilationMXBean getCompilationMXBean() { 89 return ManagementFactory.getCompilationMXBean(); 90 } 91 92 /** 93 * Getter for the "JvmJITCompilerTimeMonitoring" variable. 94 */ 95 public EnumJvmJITCompilerTimeMonitoring getJvmJITCompilerTimeMonitoring() 96 throws SnmpStatusException { 97 98 // If we reach this point, then we can safely assume that 99 // getCompilationMXBean() will not return null, because this 100 // object will not be instantiated when there is no compilation 101 // system (see JVM_MANAGEMENT_MIB_IMPL). 102 // 103 if(getCompilationMXBean().isCompilationTimeMonitoringSupported()) 104 return JvmJITCompilerTimeMonitoringSupported; 105 else 106 return JvmJITCompilerTimeMonitoringUnsupported; 107 } 108 109 /** 110 * Getter for the "JvmJITCompilerTimeMs" variable. 111 */ 112 public Long getJvmJITCompilerTimeMs() throws SnmpStatusException { 113 final long t; 114 if(getCompilationMXBean().isCompilationTimeMonitoringSupported()) 115 t = getCompilationMXBean().getTotalCompilationTime(); 116 else 117 t = 0; 118 return t; 119 } 120 121 /** 122 * Getter for the "JvmJITCompilerName" variable. 123 */ 124 public String getJvmJITCompilerName() throws SnmpStatusException { 125 return JVM_MANAGEMENT_MIB_IMPL. 126 validJavaObjectNameTC(getCompilationMXBean().getName()); 127 } 128 129 }