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 javax.persistence.EntityManager;
021import javax.persistence.Query;
022
023import org.apache.oozie.ErrorCode;
024import org.apache.oozie.util.ParamChecker;
025
026/**
027 * Deletes the coordinator action if its in WAITING or READY state.
028 */
029public 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.getMessage(), 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}