test.utils/src/main/java/org/apache/clerezza/test/utils/LockChecker.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor  license  agreements.  See the NOTICE file distributed
 * with this work  for  additional  information  regarding  copyright
 * ownership.  The ASF  licenses  this file to you 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.apache.clerezza.test.utils;

import java.util.concurrent.locks.ReentrantReadWriteLock;

/**
 *
 * @author mir
 */
class LockChecker {

    public static void checkIfReadLocked(ReentrantReadWriteLock lock) {
        if (lock.getReadLockCount() == 0 && !lock.isWriteLockedByCurrentThread()) {
            throw new RuntimeException("Neither read- nor write-locked");
        }
    }

    public static void checkIfWriteLocked(ReentrantReadWriteLock lock) {
        if (!lock.isWriteLockedByCurrentThread()) {
            throw new RuntimeException("Not write-locked");
        }
    }
}