/*

 * Copyright (c) 2003, 2006, 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 com.sun.jmx.mbeanserver.Util;

import java.io.Serializable;

import java.lang.management.RuntimeMXBean;

import java.lang.management.ManagementFactory;

import java.util.List;

import java.util.Map;

// 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.JvmRuntimeMBean;

import sun.management.snmp.jvmmib.EnumJvmRTBootClassPathSupport;

import sun.management.snmp.util.JvmContextFactory;

/**

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

 */

public class JvmRuntimeImpl implements JvmRuntimeMBean {

    /**

     * Variable for storing the value of "JvmRTBootClassPathSupport".

     *

     * "Indicates whether the Java virtual machine supports the

     * boot class path mechanism used by the system class loader

     * to search for class files.

     *

     * See java.management.RuntimeMXBean.isBootClassPathSupported()

     * "

     *

     */

    static final EnumJvmRTBootClassPathSupport

        JvmRTBootClassPathSupportSupported =

        new EnumJvmRTBootClassPathSupport("supported");

    static final EnumJvmRTBootClassPathSupport

        JvmRTBootClassPathSupportUnSupported =

        new EnumJvmRTBootClassPathSupport("unsupported");

    /**

     * Constructor for the "JvmRuntime" group.

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

     * will not be registered in Java DMK.

     */

    public JvmRuntimeImpl(SnmpMib myMib) {

    }

    /**

     * Constructor for the "JvmRuntime" group.

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

     * will be AUTOMATICALLY REGISTERED in Java DMK.

     */

    public JvmRuntimeImpl(SnmpMib myMib, MBeanServer server) {

    }

    static RuntimeMXBean getRuntimeMXBean() {

        return ManagementFactory.getRuntimeMXBean();

    }

    private static String validDisplayStringTC(String str) {

        return JVM_MANAGEMENT_MIB_IMPL.validDisplayStringTC(str);

    }

    private static String validPathElementTC(String str) {

        return JVM_MANAGEMENT_MIB_IMPL.validPathElementTC(str);

    }

    private static String validJavaObjectNameTC(String str) {

        return JVM_MANAGEMENT_MIB_IMPL.validJavaObjectNameTC(str);

    }

    static String[] splitPath(String path) {

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

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

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

        // }

        return items;

    }

    static String[] getClassPath(Object userData) {

        final Map<Object, Object> m =

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

        final String tag = "JvmRuntime.getClassPath";

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

        //

        if (m != null) {

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

            if (cached != null) return cached;

        }

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

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

        return args;

    }

    static String[] getBootClassPath(Object userData) {

        if (!getRuntimeMXBean().isBootClassPathSupported())

        return new String[0];

        final Map<Object, Object> m =

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

        final String tag = "JvmRuntime.getBootClassPath";

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

        //

        if (m != null) {

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

            if (cached != null) return cached;

        }

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

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

        return args;

    }

    static String[] getLibraryPath(Object userData) {

        final Map<Object, Object> m =

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

        final String tag = "JvmRuntime.getLibraryPath";

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

        //

        if (m != null) {

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

            if (cached != null) return cached;

        }

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

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

        return args;

    }

    static String[] getInputArguments(Object userData) {

        final Map<Object, Object> m =

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

        final String tag = "JvmRuntime.getInputArguments";

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

        //

        if (m != null) {

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

            if (cached != null) return cached;

        }

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

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

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

        return args;

    }

    /**

     * Getter for the "JvmRTSpecVendor" variable.

     */

    public String getJvmRTSpecVendor() throws SnmpStatusException {

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

    }

    /**

     * Getter for the "JvmRTSpecName" variable.

     */

    public String getJvmRTSpecName() throws SnmpStatusException {

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

    }

    /**

     * Getter for the "JvmRTVersion" variable.

     */

    public String getJvmRTVMVersion() throws SnmpStatusException {

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

    }

    /**

     * Getter for the "JvmRTVendor" variable.

     */

    public String getJvmRTVMVendor() throws SnmpStatusException {

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

    }

    /**

     * Getter for the "JvmRTManagementSpecVersion" variable.

     */

    public String getJvmRTManagementSpecVersion() throws SnmpStatusException {

        return validDisplayStringTC(getRuntimeMXBean().

                                    getManagementSpecVersion());

    }

    /**

     * Getter for the "JvmRTVMName" variable.

     */

    public String getJvmRTVMName() throws SnmpStatusException {

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

    }

    /**

     * Getter for the "JvmRTInputArgsCount" variable.

     */

    public Integer getJvmRTInputArgsCount() throws SnmpStatusException {

        final String[] args = getInputArguments(JvmContextFactory.

                                                getUserData());

        return new Integer(args.length);

    }

    /**

     * Getter for the "JvmRTBootClassPathSupport" variable.

     */

    public EnumJvmRTBootClassPathSupport getJvmRTBootClassPathSupport()

        throws SnmpStatusException {

        if(getRuntimeMXBean().isBootClassPathSupported())

            return JvmRTBootClassPathSupportSupported;

        else

            return JvmRTBootClassPathSupportUnSupported;

    }

    /**

     * Getter for the "JvmRTUptimeMs" variable.

     */

    public Long getJvmRTUptimeMs() throws SnmpStatusException {

        return new Long(getRuntimeMXBean().getUptime());

    }

    /**

     * Getter for the "JvmRTStartTimeMs" variable.

     */

    public Long getJvmRTStartTimeMs() throws SnmpStatusException {

        return new Long(getRuntimeMXBean().getStartTime());

    }

    /**

     * Getter for the "JvmRTSpecVersion" variable.

     */

    public String getJvmRTSpecVersion() throws SnmpStatusException {

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

    }

    /**

     * Getter for the "JvmRTName" variable.

     */

    public String getJvmRTName() throws SnmpStatusException {

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

    }

}