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JPPF, the open source grid computing solution

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/*
 * JPPF.
 * Copyright (C) 2005-2015 JPPF Team.
 * http://www.jppf.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jppf.management;

import java.util.concurrent.locks.*;

import javax.management.MBeanServer;
import javax.management.remote.JMXConnectorServer;

/**
 * This class is a wrapper around a JMX management server.
 * It is used essentially to hide the details of the remote management protocol used.
 * @author Laurent Cohen
 * @exclude
 */
public abstract class AbstractJMXServer implements JMXServer {
  /**
   * Used to synchronize lookup for available port.
   */
  protected static Lock lock = new ReentrantLock();
  /**
   * The mbean server.
   */
  protected MBeanServer server = null;
  /**
   * The JMX connector server.
   */
  protected JMXConnectorServer connectorServer = null;
  /**
   * Determines whether this JMX server is stopped.
   */
  protected boolean stopped = true;
  /**
   * This server's unique id.
   */
  protected String id;
  /**
   * The host interface on which the JMX server is listeneing for connections.
   */
  protected String managementHost = null;
  /**
   * The port on which the connector is listening for connections from remote clients.
   */
  protected int managementPort = -1;
  /**
   * Determines whether JMX should be used over an SSL/TLS connection.
   */
  protected boolean ssl = false;

  @Override
  public void stop() throws Exception {
    stopped = true;
    connectorServer.stop();
  }

  @Override
  public MBeanServer getServer() {
    return server;
  }

  @Override
  public boolean isStopped() {
    return stopped;
  }

  @Override
  public String getId() {
    return id;
  }

  @Override
  public int getManagementPort() {
    return managementPort;
  }

  @Override
  public String getManagementHost() {
    return managementHost;
  }
}