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     */
018    package org.apache.oozie.executor.jpa;
019    
020    import java.util.List;
021    
022    import javax.persistence.EntityManager;
023    import javax.persistence.Query;
024    
025    import org.apache.oozie.BundleActionBean;
026    import org.apache.oozie.ErrorCode;
027    import org.apache.oozie.util.ParamChecker;
028    
029    /**
030     * Load the BundleAction into a Bean and return it.
031     */
032    public 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    }