com.liferay.portal.backgroundtask.BackgroundTaskStatusRegistryImpl Maven / Gradle / Ivy
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Contains implementation for the portal services.
/**
* Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
*
* This library 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 library 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.
*/
package com.liferay.portal.backgroundtask;
import com.liferay.portal.kernel.backgroundtask.BackgroundTaskStatus;
import com.liferay.portal.kernel.backgroundtask.BackgroundTaskStatusRegistry;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
/**
* @author Michael C. Han
*/
public class BackgroundTaskStatusRegistryImpl
implements BackgroundTaskStatusRegistry {
@Override
public BackgroundTaskStatus getBackgroundTaskStatus(long backgroundTaskId) {
Lock lock = _readWriteLock.readLock();
lock.lock();
try {
return _backgroundTaskStatuses.get(backgroundTaskId);
}
finally {
lock.unlock();
}
}
@Override
public BackgroundTaskStatus registerBackgroundTaskStatus(
long backgroundTaskId) {
Lock lock = _readWriteLock.writeLock();
lock.lock();
try {
BackgroundTaskStatus backgroundTaskStatus =
_backgroundTaskStatuses.get(backgroundTaskId);
if (backgroundTaskStatus == null) {
backgroundTaskStatus = new BackgroundTaskStatus();
_backgroundTaskStatuses.put(
backgroundTaskId, backgroundTaskStatus);
}
return backgroundTaskStatus;
}
finally {
lock.unlock();
}
}
@Override
public BackgroundTaskStatus unregisterBackgroundTaskStatus(
long backgroundTaskId) {
Lock lock = _readWriteLock.writeLock();
lock.lock();
try {
BackgroundTaskStatus backgroundTaskStatus =
_backgroundTaskStatuses.remove(backgroundTaskId);
return backgroundTaskStatus;
}
finally {
lock.unlock();
}
}
private Map _backgroundTaskStatuses =
new HashMap();
private ReadWriteLock _readWriteLock = new ReentrantReadWriteLock();
}