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
019package org.apache.oozie.executor.jpa;
020
021import javax.persistence.EntityManager;
022import javax.persistence.Query;
023
024import org.apache.oozie.ErrorCode;
025import org.apache.oozie.util.ParamChecker;
026
027/**
028 * Deletes the coordinator action if its in WAITING or READY state.
029 */
030public class CoordActionRemoveJPAExecutor implements JPAExecutor<Void> {
031
032    // private CoordinatorActionBean coordAction = null;
033    private String coordActionId = null;
034
035    /**
036     * Constructor which records coordinator action id.
037     * 
038     * @param coordActionId
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        Query g = em.createNamedQuery("DELETE_UNSCHEDULED_ACTION");
051        g.setParameter("id", coordActionId);
052        int actionsDeleted;
053        try {
054            actionsDeleted = g.executeUpdate();
055        } catch (Exception e) {
056            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
057        }
058
059        if (actionsDeleted == 0)
060            throw new JPAExecutorException(ErrorCode.E1022, coordActionId);
061
062        return null;
063    }
064
065    /* (non-Javadoc)
066     * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
067     */
068    @Override
069    public String getName() {
070        return "CoordActionRemoveJPAExecutor";
071    }
072}