/** * Copyright 2005 The Apache Software Foundation * * Licensed 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 org.apache.hadoop.io.*;import java.io.*;/************************************************** * Describes the current status of a task.  This is * not intended to be a comprehensive piece of data. * * @author Mike Cafarella **************************************************/class TaskStatus implements Writable {    public static final int RUNNING = 0;    public static final int SUCCEEDED = 1;    public static final int FAILED = 2;    public static final int UNASSIGNED = 3;        private String taskid;    private boolean isMap;    private float progress;    private int runState;    private String diagnosticInfo;    private String stateString;    public TaskStatus() {}    public TaskStatus(String taskid, boolean isMap, float progress, int runState, String diagnosticInfo, String stateString) {        this.taskid = taskid;        this.isMap = isMap;        this.progress = progress;        this.runState = runState;        this.diagnosticInfo = diagnosticInfo;        this.stateString = stateString;    }        public String getTaskId() { return taskid; }    public boolean getIsMap() { return isMap; }    public float getProgress() { return progress; }    public void setProgress(float progress) { this.progress = progress; }     public int getRunState() { return runState; }    public void setRunState(int runState) { this.runState = runState; }    public String getDiagnosticInfo() { return diagnosticInfo; }    public void setDiagnosticInfo(String info) { this.diagnosticInfo = info; }    public String getStateString() { return stateString; }    public void setStateString(String stateString) { this.stateString = stateString; }    //////////////////////////////////////////////    // Writable    //////////////////////////////////////////////    public void write(DataOutput out) throws IOException {        UTF8.writeString(out, taskid);        out.writeBoolean(isMap);        out.writeFloat(progress);        out.writeInt(runState);        UTF8.writeString(out, diagnosticInfo);        UTF8.writeString(out, stateString);    }    public void readFields(DataInput in) throws IOException {        this.taskid = UTF8.readString(in);        this.isMap = in.readBoolean();        this.progress = in.readFloat();        this.runState = in.readInt();        this.diagnosticInfo = UTF8.readString(in);        this.stateString = UTF8.readString(in);    }}