hadoop HsAboutPage 源码
haddop HsAboutPage 代码
文件路径：/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsAboutPage.java
/**
* 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.hs.webapp;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.ACCORDION;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.HistoryInfo;
import org.apache.hadoop.yarn.util.Times;
import org.apache.hadoop.yarn.webapp.SubView;
import org.apache.hadoop.yarn.webapp.view.InfoBlock;
/**
* A Page the shows info about the history server
*/
public class HsAboutPage extends HsView {
/*
* (non-Javadoc)
* @see org.apache.hadoop.mapreduce.v2.hs.webapp.HsView#preHead(org.apache.hadoop.yarn.webapp.hamlet.Hamlet.HTML)
*/
@Override protected void preHead(Page.HTML<__> html) {
commonPreHead(html);
//override the nav config from commonPReHead
set(initID(ACCORDION, "nav"), "{autoHeight:false, active:0}");
setTitle("About History Server");
}
/**
* The content of this page is the attempts block
* @return AttemptsBlock.class
*/
@Override protected Class<? extends SubView> content() {
HistoryInfo info = new HistoryInfo();
info("History Server").
__("BuildVersion", info.getHadoopBuildVersion()
+ " on " + info.getHadoopVersionBuiltOn()).
__("History Server started on", Times.format(info.getStartedOn()));
return InfoBlock.class;
}
}
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