CommonHook.java

package org.opensource.clearpool.core.hook;

import java.util.Collection;

import org.opensource.clearpool.core.ConnectionPoolManager;
import org.opensource.clearpool.core.chain.CommonChain;
import org.opensource.clearpool.core.chain.LockCircleChain;
import org.opensource.clearpool.logging.PoolLogger;
import org.opensource.clearpool.logging.PoolLoggerFactory;

/**
 * The common hook of the hooks.
 *
 * @author xionghui
 * @date 16.08.2014
 * @version 1.0
 */
public abstract class CommonHook implements Runnable {
  private static final PoolLogger LOGGER = PoolLoggerFactory.getLogger(CommonHook.class);

  static CommonChain<ConnectionPoolManager> poolChain =
      new LockCircleChain<ConnectionPoolManager>();

  /**
   * Set and start a idleHook
   */
  Thread startHook(String name) {
    Thread thread = new Thread(this);
    thread.setName(name);
    thread.setDaemon(true);
    thread.start();
    LOGGER.info("start " + name);
    return thread;
  }

  /**
   * Init poolChain.
   */
  public static void initPoolChain(Collection<ConnectionPoolManager> poolCollection) {
    /*
     * Random random = new Random(); for (int i = 0, length = poolArray.length; i < length; i++) {
     * int index = random.nextInt(length - i) + i; this.poolChain.add(poolArray[index]);
     * poolArray[index] = poolArray[i]; }
     */

    for (ConnectionPoolManager manager : poolCollection) {
      poolChain.add(manager);
    }
  }
}