JpaCloseEntityManagerOnCompletion.java

/**
 * 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.camel.component.jpa;

import javax.persistence.EntityManager;

import org.apache.camel.Exchange;
import org.apache.camel.Ordered;
import org.apache.camel.support.SynchronizationAdapter;

public class JpaCloseEntityManagerOnCompletion extends SynchronizationAdapter {

    private final EntityManager entityManager;

    public JpaCloseEntityManagerOnCompletion(EntityManager entityManager) {
        this.entityManager = entityManager;
    }

    @Override
    public void onDone(Exchange exchange) {
        try {
            if (entityManager.isOpen()) {
                entityManager.close();
            }
        } catch (Exception e) {
            // ignore
        }
    }

    @Override
    public int getOrder() {
        // we want to run as last as possible
        return Ordered.LOWEST;
    }
}