Add missing file for MAPREDUCE-5732

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1562642 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobQueueChangeEvent.java

@@ -0,0 +1,63 @@
+/**
+ * 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.hadoop.mapreduce.jobhistory;
+
+import org.apache.avro.util.Utf8;
+import org.apache.hadoop.mapreduce.JobID;
+
+@SuppressWarnings("deprecation")
+public class JobQueueChangeEvent implements HistoryEvent {
+  private JobQueueChange datum = new JobQueueChange();
+  
+  public JobQueueChangeEvent(JobID id, String queueName) {
+    datum.jobid = new Utf8(id.toString());
+    datum.jobQueueName = new Utf8(queueName);
+  }
+  
+  JobQueueChangeEvent() { }
+  
+  @Override
+  public EventType getEventType() {
+    return EventType.JOB_QUEUE_CHANGED;
+  }
+
+  @Override
+  public Object getDatum() {
+    return datum;
+  }
+
+  @Override
+  public void setDatum(Object datum) {
+    this.datum = (JobQueueChange) datum;
+  }
+  
+  /** Get the Job ID */
+  public JobID getJobId() {
+    return JobID.forName(datum.jobid.toString());
+  }
+  
+  /** Get the new Job queue name */
+  public String getJobQueueName() {
+    if (datum.jobQueueName != null) {
+      return datum.jobQueueName.toString();
+    }
+    return null;
+  }
+
+}