/*
*
* * 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.core.sql;
import java.util.Map;
import com.orientechnologies.orient.core.command.OCommandRequest;
import com.orientechnologies.orient.core.db.record.ODatabaseRecord;
import com.orientechnologies.orient.core.exception.OCommandExecutionException;
/**
* Acts as a delegate to the real command inserting the execution of the command inside a new transaction if not yet begun.
*
* @author Luca Garulli
*/
public class OCommandExecutorSQLTransactional extends OCommandExecutorSQLDelegate {
public static final String KEYWORD_TRANSACTIONAL = "TRANSACTIONAL";
@SuppressWarnings("unchecked")
@Override
public OCommandExecutorSQLTransactional parse(OCommandRequest iCommand) {
String cmd = ((OCommandSQL) iCommand).getText();
super.parse(new OCommandSQL(cmd.substring(KEYWORD_TRANSACTIONAL.length())));
return this;
}
@Override
public Object execute(Map<Object, Object> iArgs) {
final ODatabaseRecord database = getDatabase();
boolean txbegun = database.getTransaction() == null || !database.getTransaction().isActive();
if (txbegun)
database.begin();
try {
final Object result = super.execute(iArgs);
if (txbegun)
database.commit();
return result;
} catch (Exception e) {
if (txbegun)
database.rollback();
throw new OCommandExecutionException("Transactional command failed", e);
}
}
}