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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.server.node.remote;

import java.net.SocketTimeoutException;
import java.util.concurrent.atomic.AtomicBoolean;

import org.jppf.comm.socket.SocketWrapper;
import org.jppf.server.node.AbstractNodeConnectionChecker;
import org.jppf.utils.*;
import org.slf4j.*;

/**
 * Connection checker implementation for a remote node.
 * @author Laurent Cohen
 * @exclude
 */
public class RemoteNodeConnectionChecker extends AbstractNodeConnectionChecker
{
  /**
   * Logger for this class.
   */
  private static final Logger log = LoggerFactory.getLogger(RemoteNodeConnectionChecker.class);
  /**
   * Determines whether the debug level is enabled in the logging configuration, without the cost of a method call.
   */
  private static boolean debugEnabled = LoggingUtils.isDebugEnabled(log);
  /**
   * The node for which to check the connection.
   */
  private AbstractRemoteNode node = null;
  /**
   * The socket connection.
   */
  private SocketWrapper socketWrapper = null;
  /**
   * The thread which performs the checks.
   */
  private CheckerThread checkerThread = null;
  /**
   * 
   */
  private Object suspendedLock = new Object();

  /**
   * Initialize this checker