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/*
 * Copyright 2010-2012 Luca Garulli (l.garulli--at--orientechnologies.com)
 *
 * 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 com.orientechnologies.common.concur.lock;

import java.util.concurrent.locks.ReadWriteLock;

/**
 * Lock that uses the write lock of a reader writer lock object.
 * 
 * @author Luca Garulli (l.garulli--at--orientechnologies.com)
 * 
 */
public class OExclusiveLock extends OAbstractLock {
  private final ReadWriteLock lock;

  public OExclusiveLock(final ReadWriteLock iLock) {
    lock = iLock;
  }

  public void lock() {
    lock.writeLock().lock();
  }

  public void unlock() {
    lock.writeLock().unlock();
  }

  @Override
  public void close() {
    try {
      lock.readLock().unlock();
    } catch (Exception e) {
      // IGNORE IT
    }

    try {
      lock.writeLock().unlock();
    } catch (Exception e) {
      // IGNORE IT
    }
  }

}