org.apache.hadoop.mapred.jobcontrol.JobControl Maven / Gradle / Ivy
/**
* 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.jobcontrol;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob;
@InterfaceAudience.Public
@InterfaceStability.Stable
public class JobControl extends
org.apache.hadoop.mapreduce.lib.jobcontrol.JobControl {
/**
* Construct a job control for a group of jobs.
* @param groupName a name identifying this group
*/
public JobControl(String groupName) {
super(groupName);
}
static ArrayList castToJobList(List cjobs) {
ArrayList ret = new ArrayList();
for (ControlledJob job : cjobs) {
ret.add((Job)job);
}
return ret;
}
/**
* @return the jobs in the waiting state
*/
public ArrayList getWaitingJobs() {
return castToJobList(super.getWaitingJobList());
}
/**
* @return the jobs in the running state
*/
public ArrayList getRunningJobs() {
return castToJobList(super.getRunningJobList());
}
/**
* @return the jobs in the ready state
*/
public ArrayList getReadyJobs() {
return castToJobList(super.getReadyJobsList());
}
/**
* @return the jobs in the success state
*/
public ArrayList getSuccessfulJobs() {
return castToJobList(super.getSuccessfulJobList());
}
public ArrayList getFailedJobs() {
return castToJobList(super.getFailedJobList());
}
/**
* Add a collection of jobs
*
* @param jobs
*/
public void addJobs(Collection jobs) {
for (Job job : jobs) {
addJob(job);
}
}
/**
* @return the thread state
*/
public int getState() {
ThreadState state = super.getThreadState();
if (state == ThreadState.RUNNING) {
return 0;
}
if (state == ThreadState.SUSPENDED) {
return 1;
}
if (state == ThreadState.STOPPED) {
return 2;
}
if (state == ThreadState.STOPPING) {
return 3;
}
if (state == ThreadState.READY ) {
return 4;
}
return -1;
}
}