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 java.sql.SQLException;
021    import java.util.ArrayList;
022    import java.util.List;
023    
024    import javax.persistence.EntityManager;
025    import javax.persistence.Query;
026    
027    import org.apache.oozie.ErrorCode;
028    import org.apache.oozie.WorkflowActionBean;
029    import org.apache.oozie.util.ParamChecker;
030    import org.apache.openjpa.persistence.OpenJPAPersistence;
031    
032    /**
033     * JPA Command to get subset of workflow actions for a particular workflow.
034     */
035    public class WorkflowActionSubsetGetJPAExecutor implements JPAExecutor<List<WorkflowActionBean>> {
036    
037        private final String wfId;
038        private final int start;
039        private final int length;
040    
041        /**
042         * This Constructor creates the WorkflowActionSubsetGetJPAExecutor object Which gets the List of wrokflow action
043         * bean.
044         *
045         * @param wfId
046         * @param start
047         * @param length
048         */
049        public WorkflowActionSubsetGetJPAExecutor(String wfId, int start, int length) {
050            ParamChecker.notNull(wfId, "wfJobId");
051            this.wfId = wfId;
052            this.start = start;
053            this.length = length;
054        }
055    
056        /* (non-Javadoc)
057         * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
058         */
059        @Override
060        @SuppressWarnings("unchecked")
061        public List<WorkflowActionBean> execute(EntityManager em) throws JPAExecutorException {
062            List<WorkflowActionBean> actions;
063            List<WorkflowActionBean> actionList = new ArrayList<WorkflowActionBean>();
064            try {
065                Query q = em.createNamedQuery("GET_ACTIONS_FOR_WORKFLOW");
066                OpenJPAPersistence.cast(q);
067                q.setParameter("wfId", wfId);
068                q.setFirstResult(start - 1);
069                q.setMaxResults(length);
070                actions = q.getResultList();
071                for (WorkflowActionBean a : actions) {
072                    WorkflowActionBean aa = getBeanForRunningAction(a);
073                    actionList.add(aa);
074                }
075            }
076            catch (Exception e) {
077                throw new JPAExecutorException(ErrorCode.E0605, e);
078            }
079            return actionList;
080        }
081    
082        /* (non-Javadoc)
083         * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
084         */
085        @Override
086        public String getName() {
087            return "WorkflowActionSubsetGetJPAExecutor";
088        }
089    
090        private WorkflowActionBean getBeanForRunningAction(WorkflowActionBean a) throws SQLException {
091            if (a != null) {
092                WorkflowActionBean action = new WorkflowActionBean();
093                action.setId(a.getId());
094                action.setConf(a.getConf());
095                action.setConsoleUrl(a.getConsoleUrl());
096                action.setData(a.getData());
097                action.setStats(a.getStats());
098                action.setExternalChildIDs(a.getExternalChildIDs());
099                action.setErrorInfo(a.getErrorCode(), a.getErrorMessage());
100                action.setExternalId(a.getExternalId());
101                action.setExternalStatus(a.getExternalStatus());
102                action.setName(a.getName());
103                action.setCred(a.getCred());
104                action.setRetries(a.getRetries());
105                action.setTrackerUri(a.getTrackerUri());
106                action.setTransition(a.getTransition());
107                action.setType(a.getType());
108                action.setEndTime(a.getEndTime());
109                action.setExecutionPath(a.getExecutionPath());
110                action.setLastCheckTime(a.getLastCheckTime());
111                action.setLogToken(a.getLogToken());
112                if (a.getPending() == true) {
113                    action.setPending();
114                }
115                action.setPendingAge(a.getPendingAge());
116                action.setSignalValue(a.getSignalValue());
117                action.setSlaXml(a.getSlaXml());
118                action.setStartTime(a.getStartTime());
119                action.setStatus(a.getStatus());
120                action.setJobId(a.getWfId());
121                return action;
122            }
123            return null;
124        }
125    }