Package org.infinispan.api.mvcc

Source Code of org.infinispan.api.mvcc.LockAssert

/*
* JBoss, Home of Professional Open Source
* Copyright 2009 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.api.mvcc;

import org.infinispan.Cache;
import org.infinispan.context.InvocationContextContainer;
import org.infinispan.test.TestingUtil;
import org.infinispan.util.concurrent.locks.LockManager;
import org.infinispan.util.concurrent.locks.containers.LockContainer;

/**
* Helper class to assert lock status in MVCC
*
* @author Manik Surtani (<a href="mailto:manik@jboss.org">manik@jboss.org</a>)
*/
public class LockAssert {
   public static void assertLocked(Object key, LockManager lockManager, InvocationContextContainer icc) {
      assert lockManager.isLocked(key) : key + " not locked!";
   }

   public static void assertNotLocked(Object key, InvocationContextContainer icc) {
      // can't rely on the negative test since other entries may share the same lock with lock striping.
      assert !icc.createInvocationContext(true, -1).hasLockedKey(key) : key + " lock recorded!";
   }

   public static void assertNoLocks(LockManager lockManager, InvocationContextContainer icc) {
      LockContainer lc = (LockContainer) TestingUtil.extractField(lockManager, "lockContainer");
      assert lc.getNumLocksHeld() == 0 : "Stale locks exist! NumLocksHeld is " + lc.getNumLocksHeld() + " and lock info is " + lockManager.printLockInfo();
   }

   public static void assertNoLocks(Cache cache) {
      LockManager lockManager = TestingUtil.extractComponentRegistry(cache).getComponent(LockManager.class);
      InvocationContextContainer icc = TestingUtil.extractComponentRegistry(cache).getComponent(InvocationContextContainer.class);

      assertNoLocks(lockManager, icc);
   }
}
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