/*

 * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.

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

 *

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

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

 * published by the Free Software Foundation.  Oracle designates this

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

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

 *

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

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

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

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

 * accompanied this code).

 *

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

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

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

 *

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

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

 * questions.

 */

package sun.management.snmp.jvminstr;

// java imports

//

import java.io.Serializable;

import java.lang.management.ManagementFactory;

import java.lang.management.CompilationMXBean;

// jmx imports

//

import javax.management.MBeanServer;

import com.sun.jmx.snmp.SnmpString;

import com.sun.jmx.snmp.SnmpStatusException;

// jdmk imports

//

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

import sun.management.snmp.jvmmib.JvmCompilationMBean;

import sun.management.snmp.jvmmib.EnumJvmJITCompilerTimeMonitoring;

import sun.management.snmp.util.MibLogger;

/**

 * The class is used for implementing the "JvmCompilation" group.

 */

public class JvmCompilationImpl implements JvmCompilationMBean {

    /**

     * Variable for storing the value of "JvmJITCompilerTimeMonitoring".

     *

     * "Indicates whether the Java virtual machine supports

     * compilation time monitoring.

     *

     * See java.management.CompilationMXBean.

     * isCompilationTimeMonitoringSupported()

     * "

     *

     */

    static final EnumJvmJITCompilerTimeMonitoring

        JvmJITCompilerTimeMonitoringSupported =

        new EnumJvmJITCompilerTimeMonitoring("supported");

    static final EnumJvmJITCompilerTimeMonitoring

        JvmJITCompilerTimeMonitoringUnsupported =

        new EnumJvmJITCompilerTimeMonitoring("unsupported");

    /**

     * Constructor for the "JvmCompilation" group.

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

     * will not be registered in Java DMK.

     */

    public JvmCompilationImpl(SnmpMib myMib) {

    }

    /**

     * Constructor for the "JvmCompilation" group.

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

     * SET will be AUTOMATICALLY REGISTERED in Java DMK.

     */

    public JvmCompilationImpl(SnmpMib myMib, MBeanServer server) {

    }

    private static CompilationMXBean getCompilationMXBean() {

        return ManagementFactory.getCompilationMXBean();

    }

    /**

     * Getter for the "JvmJITCompilerTimeMonitoring" variable.

     */

    public EnumJvmJITCompilerTimeMonitoring getJvmJITCompilerTimeMonitoring()

        throws SnmpStatusException {

        // If we reach this point, then we can safely assume that

        // getCompilationMXBean() will not return null, because this

        // object will not be instantiated when there is no compilation

        // system (see JVM_MANAGEMENT_MIB_IMPL).

        //

        if(getCompilationMXBean().isCompilationTimeMonitoringSupported())

            return JvmJITCompilerTimeMonitoringSupported;

        else

            return JvmJITCompilerTimeMonitoringUnsupported;

    }

    /**

     * Getter for the "JvmJITCompilerTimeMs" variable.

     */

    public Long getJvmJITCompilerTimeMs() throws SnmpStatusException {

        final long t;

        if(getCompilationMXBean().isCompilationTimeMonitoringSupported())

            t = getCompilationMXBean().getTotalCompilationTime();

        else

            t = 0;

        return new Long(t);

    }

    /**

     * Getter for the "JvmJITCompilerName" variable.

     */

    public String getJvmJITCompilerName() throws SnmpStatusException {

        return JVM_MANAGEMENT_MIB_IMPL.

            validJavaObjectNameTC(getCompilationMXBean().getName());

    }

}