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 javax.persistence.EntityManager;
021    
022    import org.apache.oozie.CoordinatorActionBean;
023    import org.apache.oozie.ErrorCode;
024    import org.apache.oozie.command.CommandException;
025    import org.apache.oozie.util.ParamChecker;
026    
027    /**
028     * Update the CoordinatorAction into a Bean and persist it.
029     */
030    public class CoordActionRemoveJPAExecutor implements JPAExecutor<Void> {
031    
032        // private CoordinatorActionBean coordAction = null;
033        private String coordActionId = null;
034    
035        /**
036         * This constructs the object to Update the CoordinatorAction into a Bean and persist it.
037         * 
038         * @param coordAction
039         */
040        public CoordActionRemoveJPAExecutor(String coordActionId) {
041            ParamChecker.notNull(coordActionId, "coordActionId");
042            this.coordActionId = coordActionId;
043        }
044    
045        /* (non-Javadoc)
046         * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
047         */
048        @Override
049        public Void execute(EntityManager em) throws JPAExecutorException {
050            try {
051                CoordinatorActionBean action = em.find(CoordinatorActionBean.class, coordActionId);
052                if (action != null) {
053                    em.remove(action);
054                }
055                else {
056                    throw new CommandException(ErrorCode.E0605, coordActionId);
057                }
058    
059                return null;
060            }
061            catch (Exception e) {
062                throw new JPAExecutorException(ErrorCode.E0603, e);
063            }
064        }
065    
066        /* (non-Javadoc)
067         * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
068         */
069        @Override
070        public String getName() {
071            return "CoordActionRemoveJPAExecutor";
072        }
073    }