001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 * 
010 *      http://www.apache.org/licenses/LICENSE-2.0
011 * 
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.oozie.executor.jpa;
019
020import java.util.List;
021
022import javax.persistence.EntityManager;
023import javax.persistence.Query;
024
025import org.apache.oozie.BundleActionBean;
026import org.apache.oozie.ErrorCode;
027import org.apache.oozie.util.ParamChecker;
028
029/**
030 * Load the BundleAction into a Bean and return it.
031 */
032public class BundleActionGetJPAExecutor implements JPAExecutor<BundleActionBean> {
033
034    private String bundleActionId = null;
035
036    /**
037     * The constructor for class {@link BundleActionGetJPAExecutor}
038     *
039     * @param bundleId bundle job id
040     * @param coordName coordinator name
041     */
042    public BundleActionGetJPAExecutor(String bundleId, String coordName) {
043        ParamChecker.notNull(bundleId, "bundleId");
044        ParamChecker.notNull(coordName, "coordName");
045        this.bundleActionId = bundleId + "_" + coordName;
046    }
047
048    /* (non-Javadoc)
049     * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
050     */
051    @Override
052    public String getName() {
053        return "BundleActionGetJPAExecutor";
054    }
055
056    /* (non-Javadoc)
057     * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
058     */
059    @Override
060    @SuppressWarnings("unchecked")
061    public BundleActionBean execute(EntityManager em) throws JPAExecutorException {
062        List<BundleActionBean> baBeans;
063        try {
064            Query q = em.createNamedQuery("GET_BUNDLE_ACTION");
065            q.setParameter("bundleActionId", bundleActionId);
066            baBeans = q.getResultList();
067        }
068        catch (Exception e) {
069            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
070        }
071
072        BundleActionBean bean = null;
073        if (baBeans != null && baBeans.size() > 0) {
074            bean = baBeans.get(0);
075            return bean;
076        }
077        else {
078            throw new JPAExecutorException(ErrorCode.E0605, bundleActionId);
079        }
080    }
081}