core/src/main/java/org/apache/oozie/executor/jpa/CoordActionGetJPAExecutor.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.oozie.executor.jpa;

import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.Query;

import org.apache.oozie.CoordinatorActionBean;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.util.ParamChecker;

/**
 * Load the CoordinatorAction into a Bean and return it.
 */
public class CoordActionGetJPAExecutor implements JPAExecutor<CoordinatorActionBean> {

    private String coordActionId = null;

    public CoordActionGetJPAExecutor(String coordActionId) {
        ParamChecker.notNull(coordActionId, "coordActionId");
        this.coordActionId = coordActionId;
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
     */
    @Override
    public String getName() {
        return "CoordActionGetJPAExecutor";
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
     */
    @Override
    @SuppressWarnings("unchecked")
    public CoordinatorActionBean execute(EntityManager em) throws JPAExecutorException {
        List<CoordinatorActionBean> caBeans;
        try {
            Query q = em.createNamedQuery("GET_COORD_ACTION");
            q.setParameter("id", coordActionId);
            caBeans = q.getResultList();
        }
        catch (Exception e) {
            throw new JPAExecutorException(ErrorCode.E0603, e);
        }
        CoordinatorActionBean bean = null;
        if (caBeans != null && caBeans.size() > 0) {
            bean = caBeans.get(0);
            bean = getBeanForRunningCoordAction(bean);
            return bean;
        }
        else {
            throw new JPAExecutorException(ErrorCode.E0605, coordActionId);
        }
    }

    private CoordinatorActionBean getBeanForRunningCoordAction(CoordinatorActionBean a) {
        if (a != null) {
            CoordinatorActionBean action = new CoordinatorActionBean();
            action.setId(a.getId());
            action.setActionNumber(a.getActionNumber());
            action.setActionXml(a.getActionXml());
            action.setConsoleUrl(a.getConsoleUrl());
            action.setCreatedConf(a.getCreatedConf());
            action.setExternalStatus(a.getExternalStatus());
            action.setMissingDependencies(a.getMissingDependencies());
            action.setRunConf(a.getRunConf());
            action.setTimeOut(a.getTimeOut());
            action.setTrackerUri(a.getTrackerUri());
            action.setType(a.getType());
            action.setCreatedTime(a.getCreatedTime());
            action.setExternalId(a.getExternalId());
            action.setJobId(a.getJobId());
            action.setLastModifiedTime(a.getLastModifiedTime());
            action.setNominalTime(a.getNominalTime());
            action.setSlaXml(a.getSlaXml());
            action.setStatus(a.getStatus());
            action.setPending(a.getPending());
            return action;
        }
        return null;
    }
}