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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.sca.implementation.openjpa.provider;
import java.lang.reflect.Method;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.transaction.TransactionManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
public class JPAInvoker implements Invoker {
private Operation operation;
private TransactionManager tm;
public JPAInvoker(Operation operation, EntityManagerFactory emf, TransactionManager tm) {
this.operation = operation;
this.tm = tm;
this.emf = emf;
}
private Log log = LogFactory.getLog(this.getClass());
private EntityManagerFactory emf;
public Message invoke(Message msg) {
try {
tm.begin();
Method method = JavaInterfaceUtil.findMethod(EntityManager.class, operation);
Object r = method.invoke(emf.createEntityManager(), (Object[])msg.getBody());
tm.commit();
log.info(method);
msg.setBody(r);
return msg;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
}
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