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