org.usergrid.locking.zookeeper.ZookeeperLockImpl Maven / Gradle / Ivy
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Core services for Usergrid system.
/*******************************************************************************
* Copyright 2012 Apigee Corporation
*
* 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.usergrid.locking.zookeeper;
import java.util.concurrent.TimeUnit;
import org.usergrid.locking.Lock;
import org.usergrid.locking.exception.UGLockException;
import com.netflix.curator.framework.recipes.locks.InterProcessMutex;
/**
* Wrapper for locks using curator
* @author tnine
*
*/
public class ZookeeperLockImpl implements Lock {
private InterProcessMutex zkMutex;
/**
*
*/
public ZookeeperLockImpl(InterProcessMutex zkMutex) {
this.zkMutex = zkMutex;
}
/* (non-Javadoc)
* @see org.usergrid.locking.Lock#tryLock(long, java.util.concurrent.TimeUnit)
*/
@Override
public boolean tryLock(long timeout, TimeUnit time) throws UGLockException {
try {
return zkMutex.acquire(timeout, time);
} catch (Exception e) {
throw new UGLockException("Unable to obtain lock", e);
}
}
/* (non-Javadoc)
* @see org.usergrid.locking.Lock#lock()
*/
@Override
public void lock() throws UGLockException {
try {
zkMutex.acquire();
} catch (Exception e) {
throw new UGLockException("Unable to obtain lock", e);
}
}
/* (non-Javadoc)
* @see org.usergrid.locking.Lock#unlock()
*/
@Override
public void unlock() throws UGLockException {
try {
zkMutex.release();
} catch (Exception e) {
throw new UGLockException("Unable to obtain lock", e);
}
}
}