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    import javax.persistence.Query;
022    
023    import org.apache.oozie.ErrorCode;
024    import org.apache.oozie.util.ParamChecker;
025    
026    /**
027     * Deletes the coordinator action if its in WAITING or READY state.
028     */
029    public class CoordActionRemoveJPAExecutor implements JPAExecutor<Void> {
030    
031        // private CoordinatorActionBean coordAction = null;
032        private String coordActionId = null;
033    
034        /**
035         * Constructor which records coordinator action id.
036         * 
037         * @param coordAction
038         */
039        public CoordActionRemoveJPAExecutor(String coordActionId) {
040            ParamChecker.notNull(coordActionId, "coordActionId");
041            this.coordActionId = coordActionId;
042        }
043    
044        /* (non-Javadoc)
045         * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
046         */
047        @Override
048        public Void execute(EntityManager em) throws JPAExecutorException {
049            Query g = em.createNamedQuery("DELETE_UNSCHEDULED_ACTION");
050            g.setParameter("id", coordActionId);
051            int actionsDeleted;
052            try {
053                actionsDeleted = g.executeUpdate();
054            } catch (Exception e) {
055                throw new JPAExecutorException(ErrorCode.E0603, e);
056            }
057    
058            if (actionsDeleted == 0)
059                throw new JPAExecutorException(ErrorCode.E1022, coordActionId);
060    
061            return null;
062        }
063    
064        /* (non-Javadoc)
065         * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
066         */
067        @Override
068        public String getName() {
069            return "CoordActionRemoveJPAExecutor";
070        }
071    }