/*
*
* * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
* *
* * 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.
* *
* * For more information: http://www.orientechnologies.com
*
*/
package com.orientechnologies.orient.server.distributed.impl;
import com.orientechnologies.orient.core.command.OCommandDistributedReplicateRequest;
import com.orientechnologies.orient.core.db.ODatabaseDocumentInternal;
import com.orientechnologies.orient.server.OServer;
import com.orientechnologies.orient.server.distributed.ODistributedRequestId;
import com.orientechnologies.orient.server.distributed.ODistributedServerManager;
import com.orientechnologies.orient.server.distributed.task.OAbstractRemoteTask;
import com.orientechnologies.orient.server.distributed.task.ORemoteTask;
import java.util.concurrent.CountDownLatch;
/**
* Task wrapper to manage synchronized operations like transactions.
*
* @author Luca Garulli (l.garulli--at--orientdb.com)
*
*/
public class OSynchronizedTaskWrapper extends OAbstractRemoteTask {
private boolean usesDatabase;
private CountDownLatch latch;
private ORemoteTask task;
public OSynchronizedTaskWrapper(final CountDownLatch iLatch, final String iNodeName, final ORemoteTask iTask) {
this.latch = iLatch;
this.task = iTask;
this.task.setNodeSource(iNodeName);
this.usesDatabase = true;
}
public OSynchronizedTaskWrapper(final CountDownLatch iLatch) {
latch = iLatch;
usesDatabase = false;
}
@Override
public String getName() {
return null;
}
@Override
public OCommandDistributedReplicateRequest.QUORUM_TYPE getQuorumType() {
return null;
}
@Override
public Object execute(ODistributedRequestId requestId, OServer iServer, ODistributedServerManager iManager,
ODatabaseDocumentInternal database) throws Exception {
try {
if (task != null)
return task.execute(requestId, iServer, iManager, database);
return null;
} finally {
// RELEASE ALL PENDING WORKERS
latch.countDown();
}
}
@Override
public int getFactoryId() {
return 0;
}
@Override
public String toString() {
return "(" + (task != null ? task.toString() : "-") + ")";
}
@Override
public boolean isUsingDatabase() {
return usesDatabase;
}
}