| /** |
| * 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.mapred; |
| |
| import java.io.File; |
| import java.util.List; |
| |
| /** |
| * This TaskTrackerInstrumentation subclass forwards all the events it |
| * receives to a list of instrumentation objects, and can thus be used to |
| * attack multiple instrumentation objects to a TaskTracker. |
| */ |
| class CompositeTaskTrackerInstrumentation extends TaskTrackerInstrumentation { |
| |
| private List<TaskTrackerInstrumentation> instrumentations; |
| |
| public CompositeTaskTrackerInstrumentation(TaskTracker tt, |
| List<TaskTrackerInstrumentation> instrumentations) { |
| super(tt); |
| this.instrumentations = instrumentations; |
| } |
| |
| // Package-private getter methods for tests |
| List<TaskTrackerInstrumentation> getInstrumentations() { |
| return instrumentations; |
| } |
| |
| @Override |
| public void completeTask(TaskAttemptID t) { |
| for (TaskTrackerInstrumentation tti: instrumentations) { |
| tti.completeTask(t); |
| } |
| } |
| |
| @Override |
| public void timedoutTask(TaskAttemptID t) { |
| for (TaskTrackerInstrumentation tti: instrumentations) { |
| tti.timedoutTask(t); |
| } |
| } |
| |
| @Override |
| public void taskFailedPing(TaskAttemptID t) { |
| for (TaskTrackerInstrumentation tti: instrumentations) { |
| tti.taskFailedPing(t); |
| } |
| } |
| |
| @Override |
| public void reportTaskLaunch(TaskAttemptID t, File stdout, File stderr) { |
| for (TaskTrackerInstrumentation tti: instrumentations) { |
| tti.reportTaskLaunch(t, stdout, stderr); |
| } |
| } |
| |
| @Override |
| public void reportTaskEnd(TaskAttemptID t) { |
| for (TaskTrackerInstrumentation tti: instrumentations) { |
| tti.reportTaskEnd(t); |
| } |
| } |
| |
| @Override |
| public void statusUpdate(Task task, TaskStatus taskStatus) { |
| for (TaskTrackerInstrumentation tti: instrumentations) { |
| tti.statusUpdate(task, taskStatus); |
| } |
| } |
| } |