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.command.coord;
019
020 import java.util.ArrayList;
021 import java.util.Collections;
022 import java.util.List;
023
024 import org.apache.oozie.CoordinatorActionBean;
025 import org.apache.oozie.CoordinatorJobBean;
026 import org.apache.oozie.ErrorCode;
027 import org.apache.oozie.XException;
028 import org.apache.oozie.command.CommandException;
029 import org.apache.oozie.command.PreconditionException;
030 import org.apache.oozie.executor.jpa.CoordActionsCountForJobIdJPAExecutor;
031 import org.apache.oozie.executor.jpa.CoordJobGetActionsSubsetJPAExecutor;
032 import org.apache.oozie.executor.jpa.CoordJobGetJPAExecutor;
033 import org.apache.oozie.service.JPAService;
034 import org.apache.oozie.service.Services;
035 import org.apache.oozie.util.ParamChecker;
036
037 /**
038 * Command for loading a coordinator job information
039 */
040 public class CoordJobXCommand extends CoordinatorXCommand<CoordinatorJobBean> {
041 private final String id;
042 private final boolean getActionInfo;
043 private int start = 1;
044 private int len = Integer.MAX_VALUE;
045 private boolean desc = false;
046 private List<String> filterList;
047
048 /**
049 * Constructor for loading a coordinator job information
050 *
051 * @param id coord jobId
052 */
053 public CoordJobXCommand(String id) {
054 this(id, Collections.<String>emptyList(), 1, Integer.MAX_VALUE, false);
055 }
056
057 /**
058 * Constructor for loading a coordinator job information
059 *
060 * @param id coord jobId
061 * @param start starting index in the list of actions belonging to the job
062 * @param length number of actions to be returned
063 */
064 public CoordJobXCommand(String id, List<String> filterList, int start, int length, boolean desc) {
065 super("job.info", "job.info", 1);
066 this.id = ParamChecker.notEmpty(id, "id");
067 this.getActionInfo = true;
068 this.filterList = filterList;
069 this.start = start;
070 this.len = length;
071 this.desc = desc;
072 }
073
074 /**
075 * Constructor for loading a coordinator job information
076 *
077 * @param id coord jobId
078 * @param getActionInfo false to ignore loading actions for the job
079 */
080 public CoordJobXCommand(String id, boolean getActionInfo) {
081 super("job.info", "job.info", 1);
082 this.id = ParamChecker.notEmpty(id, "id");
083 this.getActionInfo = getActionInfo;
084 }
085
086 /* (non-Javadoc)
087 * @see org.apache.oozie.command.XCommand#isLockRequired()
088 */
089 @Override
090 protected boolean isLockRequired() {
091 return false;
092 }
093
094 /* (non-Javadoc)
095 * @see org.apache.oozie.command.XCommand#getEntityKey()
096 */
097 @Override
098 public String getEntityKey() {
099 return this.id;
100 }
101
102 /* (non-Javadoc)
103 * @see org.apache.oozie.command.XCommand#loadState()
104 */
105 @Override
106 protected void loadState() throws CommandException {
107 }
108
109 /* (non-Javadoc)
110 * @see org.apache.oozie.command.XCommand#verifyPrecondition()
111 */
112 @Override
113 protected void verifyPrecondition() throws CommandException, PreconditionException {
114 }
115
116 /* (non-Javadoc)
117 * @see org.apache.oozie.command.XCommand#execute()
118 */
119 @Override
120 protected CoordinatorJobBean execute() throws CommandException {
121 try {
122 JPAService jpaService = Services.get().get(JPAService.class);
123 CoordinatorJobBean coordJob = null;
124 if (jpaService != null) {
125 coordJob = jpaService.execute(new CoordJobGetJPAExecutor(id));
126 if (getActionInfo) {
127 int numAction = jpaService.execute(new CoordActionsCountForJobIdJPAExecutor(id));
128 List<CoordinatorActionBean> coordActions = null;
129 if (len == 0) {
130 coordActions = new ArrayList<CoordinatorActionBean>();
131 }
132 else {
133 coordActions = jpaService.execute(new CoordJobGetActionsSubsetJPAExecutor(id, filterList,
134 start, len, desc));
135 }
136 coordJob.setActions(coordActions);
137 coordJob.setNumActions(numAction);
138 }
139 }
140 else {
141 LOG.error(ErrorCode.E0610);
142 }
143 return coordJob;
144 }
145 catch (XException ex) {
146 throw new CommandException(ex);
147 }
148 }
149
150 }