001    /**
002     * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
003     * Licensed under the Apache License, Version 2.0 (the "License");
004     * you may not use this file except in compliance with the License.
005     * You may obtain a copy of the License at
006     *
007     *   http://www.apache.org/licenses/LICENSE-2.0
008     *
009     *  Unless required by applicable law or agreed to in writing, software
010     *  distributed under the License is distributed on an "AS IS" BASIS,
011     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012     *  See the License for the specific language governing permissions and
013     *  limitations under the License. See accompanying LICENSE file.
014     */
015    package org.apache.oozie.command.coord;
016    
017    import org.apache.oozie.client.CoordinatorJob;
018    import org.apache.oozie.CoordinatorActionBean;
019    import org.apache.oozie.CoordinatorJobBean;
020    import org.apache.oozie.XException;
021    import org.apache.oozie.command.wf.KillCommand;
022    import org.apache.oozie.command.CommandException;
023    import org.apache.oozie.store.CoordinatorStore;
024    import org.apache.oozie.store.StoreException;
025    import org.apache.oozie.util.ParamChecker;
026    import org.apache.oozie.util.XLog;
027    
028    import java.util.Date;
029    import java.util.List;
030    
031    public class CoordKillCommand extends CoordinatorCommand<Void> {
032    
033        private String jobId;
034        private final XLog log = XLog.getLog(getClass());
035    
036        public CoordKillCommand(String id) {
037            super("coord_kill", "coord_kill", 1, XLog.STD);
038            this.jobId = ParamChecker.notEmpty(id, "id");
039        }
040    
041        protected Void call(CoordinatorStore store) throws StoreException, CommandException {
042            try {
043                // CoordinatorJobBean coordJob = store.getCoordinatorJob(jobId,
044                // false);
045                CoordinatorJobBean coordJob = store.getEntityManager().find(CoordinatorJobBean.class, jobId);
046                setLogInfo(coordJob);
047                if (coordJob.getStatus() != CoordinatorJob.Status.SUCCEEDED
048                        || coordJob.getStatus() != CoordinatorJob.Status.FAILED) {
049                    coordJob.setEndTime(new Date());
050                    incrJobCounter(1);
051                    coordJob.setStatus(CoordinatorJob.Status.KILLED);
052                    List<CoordinatorActionBean> actionList = store.getActionsForCoordinatorJob(jobId, false);
053                    for (CoordinatorActionBean action : actionList) {
054                        if (action.getStatus() != CoordinatorActionBean.Status.FAILED
055                                && action.getStatus() != CoordinatorActionBean.Status.TIMEDOUT
056                                && action.getStatus() != CoordinatorActionBean.Status.SUCCEEDED
057                                && action.getStatus() != CoordinatorActionBean.Status.KILLED) {
058                            // queue a KillCommand to delete the workflow job
059                            if (action.getExternalId() != null) {
060                                queueCallable(new KillCommand(action.getExternalId()));
061                            }
062                            action.setStatus(CoordinatorActionBean.Status.KILLED);
063                            store.updateCoordinatorAction(action);
064                        }
065                    }
066                    store.updateCoordinatorJob(coordJob);
067                    // TODO queueCallable(new NotificationCommand(coordJob));
068                }
069                else {
070                    log.info("CoordKillCommand not killed - job either " + "finished successfully or does not exist "
071                            + jobId);
072                }
073                return null;
074            }
075            catch (XException ex) {
076                throw new CommandException(ex);
077            }
078        }
079    
080        @Override
081        protected Void execute(CoordinatorStore store) throws StoreException, CommandException {
082            log.info("STARTED CoordKillCommand for jobId=" + jobId);
083            try {
084                if (lock(jobId)) {
085                    call(store);
086                }
087                else {
088                    queueCallable(new CoordKillCommand(jobId), LOCK_FAILURE_REQUEUE_INTERVAL);
089                    log.warn("CoordKillCommand lock was not acquired - " + " failed " + jobId + ". Requeing the same.");
090                }
091            }
092            catch (InterruptedException e) {
093                queueCallable(new CoordKillCommand(jobId), LOCK_FAILURE_REQUEUE_INTERVAL);
094                log.warn("CoordKillCommand lock acquiring failed " + " with exception " + e.getMessage() + " for job id "
095                        + jobId + ". Requeing the same.");
096            }
097            finally {
098                log.info("ENDED CoordKillCommand for jobId=" + jobId);
099            }
100            return null;
101        }
102    
103    }