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.Collection;
021    
022    import javax.persistence.EntityManager;
023    import org.apache.oozie.ErrorCode;
024    import org.apache.oozie.FaultInjection;
025    import org.apache.oozie.client.rest.JsonBean;
026    import org.apache.oozie.util.ParamChecker;
027    
028    /**
029     * Class for inserting and updating beans in bulk
030     * @param <T>
031    */
032    public class BulkUpdateInsertJPAExecutor implements JPAExecutor<Void> {
033    
034        private Collection<JsonBean> updateList;
035        private Collection<JsonBean> insertList;
036    
037        /**
038         * Initialize the JPAExecutor using the insert and update list of JSON beans
039         * @param updateList
040         * @param insertList
041         */
042        public BulkUpdateInsertJPAExecutor(Collection<JsonBean> updateList, Collection<JsonBean> insertList) {
043            this.updateList = updateList;
044            this.insertList = insertList;
045        }
046    
047        public BulkUpdateInsertJPAExecutor() {
048        }
049    
050        /**
051         * Sets the update list for JSON bean
052         * @param updateList
053         */
054        public void setUpdateList(Collection<JsonBean> updateList) {
055            this.updateList = updateList;
056        }
057    
058        /**
059         * Sets the insert list for JSON bean
060         * @param insertList
061         */
062        public void setInsertList(Collection<JsonBean> insertList) {
063            this.insertList = insertList;
064        }
065    
066    
067        /* (non-Javadoc)
068         * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
069         */
070        @Override
071        public String getName() {
072            return "BulkUpdateInsertJPAExecutor";
073        }
074    
075        /* (non-Javadoc)
076         * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
077         */
078        @Override
079        public Void execute(EntityManager em) throws JPAExecutorException {
080            try {
081                if (insertList!= null){
082                    for (JsonBean entity: insertList){
083                        ParamChecker.notNull(entity, "JsonBean");
084                        em.persist(entity);
085                    }
086                }
087                // Only used by test cases to check for rollback of transaction
088                FaultInjection.activate("org.apache.oozie.command.SkipCommitFaultInjection");
089                if (updateList!= null){
090                    for (JsonBean entity: updateList){
091                        ParamChecker.notNull(entity, "JsonBean");
092                        em.merge(entity);
093                    }
094                }
095                return null;
096            }
097            catch (Exception e) {
098                throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
099            }
100        }
101    
102    
103    }