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 * Retrieve the name of user submitting coordinator
028 *
029 */
030public class CoordinatorJobGetForUserJPAExecutor implements JPAExecutor<String> {
031
032    private String wfJobId = null;
033
034    public CoordinatorJobGetForUserJPAExecutor(String wfJobId) {
035        ParamChecker.notNull(wfJobId, "wfJobId");
036        this.wfJobId = wfJobId;
037    }
038
039    /*
040     * (non-Javadoc)
041     *
042     * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
043     */
044    @Override
045    public String getName() {
046        return "CoordinatorJobGetForUserJPAExecutor";
047    }
048
049    /*
050     * (non-Javadoc)
051     *
052     * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.
053     * EntityManager)
054     */
055    @Override
056    public String execute(EntityManager em) throws JPAExecutorException {
057        try {
058            Query q = em.createNamedQuery("GET_COORD_JOB_FOR_USER");
059            q.setParameter("id", wfJobId);
060            String user = (String) q.getSingleResult();
061            return user;
062        }
063        catch (Exception e) {
064            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
065        }
066    }
067}