| /** |
| * 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.io.Text; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.io.WritableFactories; |
| import org.apache.hadoop.io.WritableFactory; |
| |
| /************************************************** |
| * Describes the current status of a job. This is |
| * not intended to be a comprehensive piece of data. |
| * For that, look at JobProfile. |
| **************************************************/ |
| public class JobStatus implements Writable { |
| |
| static { // register a ctor |
| WritableFactories.setFactory |
| (JobStatus.class, |
| new WritableFactory() { |
| public Writable newInstance() { return new JobStatus(); } |
| }); |
| } |
| |
| public static final int RUNNING = 1; |
| public static final int SUCCEEDED = 2; |
| public static final int FAILED = 3; |
| public static final int PREP = 4; |
| |
| private JobID jobid; |
| private float mapProgress; |
| private float reduceProgress; |
| private int runState; |
| private long startTime; |
| private String user; |
| |
| /** |
| */ |
| public JobStatus() { |
| } |
| |
| @Deprecated |
| public JobStatus(String jobid, float mapProgress, float reduceProgress, |
| int runState) { |
| this(JobID.forName(jobid), mapProgress, reduceProgress, runState); |
| } |
| |
| /** |
| * Create a job status object for a given jobid. |
| * @param jobid The jobid of the job |
| * @param mapProgress The progress made on the maps |
| * @param reduceProgress The progress made on the reduces |
| * @param runState The current state of the job |
| */ |
| public JobStatus(JobID jobid, float mapProgress, float reduceProgress, int runState) { |
| this.jobid = jobid; |
| this.mapProgress = mapProgress; |
| this.reduceProgress = reduceProgress; |
| this.runState = runState; |
| this.user = "nobody"; |
| } |
| |
| /** |
| * @deprecated use getJobID instead |
| */ |
| @Deprecated |
| public String getJobId() { return jobid.toString(); } |
| |
| /** |
| * @return The jobid of the Job |
| */ |
| public JobID getJobID() { return jobid; } |
| |
| /** |
| * @return Percentage of progress in maps |
| */ |
| public synchronized float mapProgress() { return mapProgress; } |
| |
| /** |
| * Sets the map progress of this job |
| * @param p The value of map progress to set to |
| */ |
| synchronized void setMapProgress(float p) { |
| this.mapProgress = (float) Math.min(1.0, Math.max(0.0, p)); |
| } |
| |
| /** |
| * @return Percentage of progress in reduce |
| */ |
| public synchronized float reduceProgress() { return reduceProgress; } |
| |
| /** |
| * Sets the reduce progress of this Job |
| * @param p The value of reduce progress to set to |
| */ |
| synchronized void setReduceProgress(float p) { |
| this.reduceProgress = (float) Math.min(1.0, Math.max(0.0, p)); |
| } |
| |
| /** |
| * @return running state of the job |
| */ |
| public synchronized int getRunState() { return runState; } |
| |
| /** |
| * Change the current run state of the job. |
| */ |
| public synchronized void setRunState(int state) { |
| this.runState = state; |
| } |
| |
| /** |
| * Set the start time of the job |
| * @param startTime The startTime of the job |
| */ |
| synchronized void setStartTime(long startTime) { this.startTime = startTime;} |
| |
| /** |
| * @return start time of the job |
| */ |
| synchronized public long getStartTime() { return startTime;} |
| |
| /** |
| * @param user The username of the job |
| */ |
| synchronized void setUsername(String userName) { this.user = userName;} |
| |
| /** |
| * @return the username of the job |
| */ |
| public synchronized String getUsername() { return this.user;} |
| |
| /////////////////////////////////////// |
| // Writable |
| /////////////////////////////////////// |
| public void write(DataOutput out) throws IOException { |
| jobid.write(out); |
| out.writeFloat(mapProgress); |
| out.writeFloat(reduceProgress); |
| out.writeInt(runState); |
| out.writeLong(startTime); |
| Text.writeString(out, user); |
| } |
| |
| public void readFields(DataInput in) throws IOException { |
| this.jobid = JobID.read(in); |
| this.mapProgress = in.readFloat(); |
| this.reduceProgress = in.readFloat(); |
| this.runState = in.readInt(); |
| this.startTime = in.readLong(); |
| this.user = Text.readString(in); |
| } |
| } |