| /** |
| * 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; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.util.Progressable; |
| |
| /** |
| * The context for task attempts. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| public interface TaskAttemptContext extends JobContext, Progressable { |
| |
| /** |
| * Get the unique name for this task attempt. |
| */ |
| public TaskAttemptID getTaskAttemptID(); |
| |
| /** |
| * Set the current status of the task to the given string. |
| */ |
| public void setStatus(String msg); |
| |
| /** |
| * Get the last set status message. |
| * @return the current status message |
| */ |
| public String getStatus(); |
| |
| /** |
| * The current progress of the task attempt. |
| * @return a number between 0.0 and 1.0 (inclusive) indicating the attempt's |
| * progress. |
| */ |
| public abstract float getProgress(); |
| |
| /** |
| * Get the {@link Counter} for the given <code>counterName</code>. |
| * @param counterName counter name |
| * @return the <code>Counter</code> for the given <code>counterName</code> |
| */ |
| public Counter getCounter(Enum<?> counterName); |
| |
| /** |
| * Get the {@link Counter} for the given <code>groupName</code> and |
| * <code>counterName</code>. |
| * @param counterName counter name |
| * @return the <code>Counter</code> for the given <code>groupName</code> and |
| * <code>counterName</code> |
| */ |
| public Counter getCounter(String groupName, String counterName); |
| |
| } |