1/* 2 * Copyright (c) 2003, 2008, 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 26package sun.management; 27 28import java.lang.management.CompilationMXBean; 29import java.lang.management.ManagementFactory; 30import javax.management.ObjectName; 31 32/** 33 * Implementation class for the compilation subsystem. 34 * Standard and committed hotspot-specific metrics if any. 35 * 36 * ManagementFactory.getCompilationMXBean() returns an instance 37 * of this class. 38 */ 39class CompilationImpl implements CompilationMXBean { 40 41 private final VMManagement jvm; 42 private final String name; 43 44 /** 45 * Constructor of CompilationImpl class. 46 */ 47 CompilationImpl(VMManagement vm) { 48 this.jvm = vm; 49 this.name = jvm.getCompilerName(); 50 if (name == null) { 51 throw new AssertionError("Null compiler name"); 52 } 53 } 54 55 public java.lang.String getName() { 56 return name; 57 } 58 59 public boolean isCompilationTimeMonitoringSupported() { 60 return jvm.isCompilationTimeMonitoringSupported(); 61 } 62 63 public long getTotalCompilationTime() { 64 if (!isCompilationTimeMonitoringSupported()) { 65 throw new UnsupportedOperationException( 66 "Compilation time monitoring is not supported."); 67 } 68 69 return jvm.getTotalCompileTime(); 70 } 71 72 public ObjectName getObjectName() { 73 return Util.newObjectName(ManagementFactory.COMPILATION_MXBEAN_NAME); 74 } 75 76 77} 78