JobProfile.java
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上传日期:2018-01-08
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- /**
- * 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 java.net.URL;
- import org.apache.hadoop.io.Text;
- import org.apache.hadoop.io.Writable;
- import org.apache.hadoop.io.WritableFactories;
- import org.apache.hadoop.io.WritableFactory;
- /**************************************************
- * A JobProfile is a MapReduce primitive. Tracks a job,
- * whether living or dead.
- *
- **************************************************/
- public class JobProfile implements Writable {
- static { // register a ctor
- WritableFactories.setFactory
- (JobProfile.class,
- new WritableFactory() {
- public Writable newInstance() { return new JobProfile(); }
- });
- }
- String user;
- final JobID jobid;
- String jobFile;
- String url;
- String name;
- String queueName;
-
- /**
- * Construct an empty {@link JobProfile}.
- */
- public JobProfile() {
- jobid = new JobID();
- }
- /**
- * Construct a {@link JobProfile} the userid, jobid,
- * job config-file, job-details url and job name.
- *
- * @param user userid of the person who submitted the job.
- * @param jobid id of the job.
- * @param jobFile job configuration file.
- * @param url link to the web-ui for details of the job.
- * @param name user-specified job name.
- */
- public JobProfile(String user, org.apache.hadoop.mapreduce.JobID jobid,
- String jobFile, String url,
- String name) {
- this(user, jobid, jobFile, url, name, JobConf.DEFAULT_QUEUE_NAME);
- }
- /**
- * Construct a {@link JobProfile} the userid, jobid,
- * job config-file, job-details url and job name.
- *
- * @param user userid of the person who submitted the job.
- * @param jobid id of the job.
- * @param jobFile job configuration file.
- * @param url link to the web-ui for details of the job.
- * @param name user-specified job name.
- * @param queueName name of the queue to which the job is submitted
- */
- public JobProfile(String user, org.apache.hadoop.mapreduce.JobID jobid,
- String jobFile, String url,
- String name, String queueName) {
- this.user = user;
- this.jobid = JobID.downgrade(jobid);
- this.jobFile = jobFile;
- this.url = url;
- this.name = name;
- this.queueName = queueName;
- }
-
- /**
- * @deprecated use JobProfile(String, JobID, String, String, String) instead
- */
- @Deprecated
- public JobProfile(String user, String jobid, String jobFile, String url,
- String name) {
- this(user, JobID.forName(jobid), jobFile, url, name);
- }
-
- /**
- * Get the user id.
- */
- public String getUser() {
- return user;
- }
-
- /**
- * Get the job id.
- */
- public JobID getJobID() {
- return jobid;
- }
- /**
- * @deprecated use getJobID() instead
- */
- @Deprecated
- public String getJobId() {
- return jobid.toString();
- }
-
- /**
- * Get the configuration file for the job.
- */
- public String getJobFile() {
- return jobFile;
- }
- /**
- * Get the link to the web-ui for details of the job.
- */
- public URL getURL() {
- try {
- return new URL(url);
- } catch (IOException ie) {
- return null;
- }
- }
- /**
- * Get the user-specified job name.
- */
- public String getJobName() {
- return name;
- }
-
- /**
- * Get the name of the queue to which the job is submitted.
- * @return name of the queue.
- */
- public String getQueueName() {
- return queueName;
- }
-
- ///////////////////////////////////////
- // Writable
- ///////////////////////////////////////
- public void write(DataOutput out) throws IOException {
- jobid.write(out);
- Text.writeString(out, jobFile);
- Text.writeString(out, url);
- Text.writeString(out, user);
- Text.writeString(out, name);
- Text.writeString(out, queueName);
- }
- public void readFields(DataInput in) throws IOException {
- jobid.readFields(in);
- this.jobFile = Text.readString(in);
- this.url = Text.readString(in);
- this.user = Text.readString(in);
- this.name = Text.readString(in);
- this.queueName = Text.readString(in);
- }
- }