/**
* 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.mapreduce.v2.app.webapp;
import static org.apache.hadoop.mapreduce.v2.app.webapp.AMParams.JOB_ID;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI._TH;
import java.io.IOException;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
import org.apache.hadoop.mapreduce.v2.app.AppContext;
import org.apache.hadoop.mapreduce.v2.app.job.Job;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfEntryInfo;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfInfo;
import org.apache.hadoop.mapreduce.v2.util.MRApps;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TBODY;
import org.apache.hadoop.yarn.webapp.hamlet.HamletSpec.InputType;
import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
import com.google.inject.Inject;
/**
* Render the configuration for this job.
*/
public class ConfBlock extends HtmlBlock {
final AppContext appContext;
@Inject ConfBlock(AppContext appctx) {
appContext = appctx;
}
/*
* (non-Javadoc)
* @see org.apache.hadoop.yarn.webapp.view.HtmlBlock#render(org.apache.hadoop.yarn.webapp.view.HtmlBlock.Block)
*/
@Override protected void render(Block html) {
String jid = $(JOB_ID);
if (jid.isEmpty()) {
html.
p()._("Sorry, can't do anything without a JobID.")._();
return;
}
JobId jobID = MRApps.toJobID(jid);
Job job = appContext.getJob(jobID);
if (job == null) {
html.
p()._("Sorry, ", jid, " not found.")._();
return;
}
Path confPath = job.getConfFile();
try {
ConfInfo info = new ConfInfo(job);
html.div().h3(confPath.toString())._();
TBODY<TABLE<Hamlet>> tbody = html.
// Tasks table
table("#conf").
thead().
tr().
th(_TH, "key").
th(_TH, "value").
th(_TH, "source chain").
_().
_().
tbody();
for (ConfEntryInfo entry : info.getProperties()) {
StringBuffer buffer = new StringBuffer();
String[] sources = entry.getSource();
//Skip the last entry, because it is always the same HDFS file, and
// output them in reverse order so most recent is output first
boolean first = true;
for(int i = (sources.length - 2); i >= 0; i--) {
if(!first) {
// \u2B05 is an arrow <--
buffer.append(" \u2B05 ");
}
first = false;
buffer.append(sources[i]);
}
tbody.
tr().
td(entry.getName()).
td(entry.getValue()).
td(buffer.toString()).
_();
}
tbody._().
tfoot().
tr().
th().input("search_init").$type(InputType.text).$name("key").$value("key")._()._().
th().input("search_init").$type(InputType.text).$name("value").$value("value")._()._().
th().input("search_init").$type(InputType.text).$name("source chain").$value("source chain")._()._().
_().
_().
_();
} catch(IOException e) {
LOG.error("Error while reading "+confPath, e);
html.p()._("Sorry got an error while reading conf file. ",confPath);
}
}
}