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/*-
* ============LICENSE_START=======================================================
* openECOMP : SDN-C
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights
* reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdnc.lock.comp;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
public abstract class SynchronizedFunction {
private Set<String> synchset;
private String lockRequester;
private int lockTimeout; // Seconds
private LockHelper lockHelper;
protected SynchronizedFunction(LockHelper lockHelper, Collection<String> synchset, int lockTimeout) {
this.lockHelper = lockHelper;
this.synchset = new HashSet<String>(synchset);
this.lockRequester = generateLockRequester();
this.lockTimeout = lockTimeout;
}
protected abstract void _exec();
public void exec() {
lockHelper.lock(synchset, lockRequester, lockTimeout);
try {
_exec();
} finally {
lockHelper.unlock(synchset, true);
}
}
private static String generateLockRequester() {
return "SynchronizedFunction-" + (int) (Math.random() * 1000000);
}
}
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