/*

 * Copyright (c) 2003, 2008, 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;

import java.lang.management.RuntimeMXBean;

import java.lang.management.ManagementFactory;

import java.util.List;

import java.util.HashMap;

import java.util.Map;

import java.util.Set;

import java.util.Properties;

import javax.management.ObjectName;

/**

 * Implementation class for the runtime subsystem.

 * Standard and committed hotspot-specific metrics if any.

 *

 * ManagementFactory.getRuntimeMXBean() returns an instance

 * of this class.

 */

class RuntimeImpl implements RuntimeMXBean {

    private final VMManagement jvm;

    private final long vmStartupTime;

    /**

     * Constructor of RuntimeImpl class.

     */

    RuntimeImpl(VMManagement vm) {

        this.jvm = vm;

        this.vmStartupTime = jvm.getStartupTime();

    }

    public String getName() {

        return jvm.getVmId();

    }

    public String getManagementSpecVersion() {

        return jvm.getManagementVersion();

    }

    public String getVmName() {

        return jvm.getVmName();

    }

    public String getVmVendor() {

        return jvm.getVmVendor();

    }

    public String getVmVersion() {

        return jvm.getVmVersion();

    }

    public String getSpecName() {

        return jvm.getVmSpecName();

    }

    public String getSpecVendor() {

        return jvm.getVmSpecVendor();

    }

    public String getSpecVersion() {

        return jvm.getVmSpecVersion();

    }

    public String getClassPath() {

        return jvm.getClassPath();

    }

    public String getLibraryPath() {

        return jvm.getLibraryPath();

    }

    public String getBootClassPath() {

        if (!isBootClassPathSupported()) {

            throw new UnsupportedOperationException(

                "Boot class path mechanism is not supported");

        }

        Util.checkMonitorAccess();

        return jvm.getBootClassPath();

    }

    public List<String> getInputArguments() {

        Util.checkMonitorAccess();

        return jvm.getVmArguments();

    }

    public long getUptime() {

        long current = System.currentTimeMillis();

        // TODO: If called from client side when we support

        // MBean proxy to read performance counters from shared memory,

        // need to check if the monitored VM exitd.

        return (current - vmStartupTime);

    }

    public long getStartTime() {

        return vmStartupTime;

    }

    public boolean isBootClassPathSupported() {

        return jvm.isBootClassPathSupported();

    }

    public Map<String,String> getSystemProperties() {

        Properties sysProps = System.getProperties();

        // Properties.entrySet() does not include the entries in

        // the default properties.  So use Properties.stringPropertyNames()

        // to get the list of property keys including the default ones.

        Set<String> keys = sysProps.stringPropertyNames();

        for (String k : keys) {

            String value = sysProps.getProperty(k);

            map.put(k, value);

        }

        return map;

    }

    public ObjectName getObjectName() {

        return Util.newObjectName(ManagementFactory.RUNTIME_MXBEAN_NAME);

    }

}