| /** |
| * 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.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.io.WritableUtils; |
| |
| /** |
| * Represents the basic information that is saved per a job when the |
| * JobTracker receives a submitJob request. The information is saved |
| * so that the JobTracker can recover incomplete jobs upon restart. |
| */ |
| class JobInfo implements Writable { |
| private org.apache.hadoop.mapreduce.JobID id; |
| private Text user; |
| private Path jobSubmitDir; |
| public JobInfo() {} |
| |
| public JobInfo(org.apache.hadoop.mapreduce.JobID id, |
| Text user, |
| Path jobSubmitDir) { |
| this.id = id; |
| this.user = user; |
| this.jobSubmitDir = jobSubmitDir; |
| } |
| |
| /** |
| * Get the job id. |
| */ |
| public org.apache.hadoop.mapreduce.JobID getJobID() { |
| return id; |
| } |
| |
| /** |
| * Get the configured job's user-name. |
| */ |
| public Text getUser() { |
| return user; |
| } |
| |
| /** |
| * Get the job submission directory |
| */ |
| public Path getJobSubmitDir() { |
| return this.jobSubmitDir; |
| } |
| |
| public void readFields(DataInput in) throws IOException { |
| id = new org.apache.hadoop.mapreduce.JobID(); |
| id.readFields(in); |
| user = new Text(); |
| user.readFields(in); |
| jobSubmitDir = new Path(WritableUtils.readString(in)); |
| } |
| |
| public void write(DataOutput out) throws IOException { |
| id.write(out); |
| user.write(out); |
| WritableUtils.writeString(out, jobSubmitDir.toString()); |
| } |
| } |