hadoop AppsPage 源码
haddop AppsPage 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/webapp/AppsPage.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.yarn.server.router.webapp;
import static org.apache.hadoop.yarn.util.StringHelper.sjoin;
import static org.apache.hadoop.yarn.webapp.YarnWebParams.APP_STATE;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES_ID;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.tableInit;
import org.apache.hadoop.yarn.webapp.SubView;
class AppsPage extends RouterView {
@Override
protected void preHead(Page.HTML<__> html) {
commonPreHead(html);
set(DATATABLES_ID, "apps");
set(initID(DATATABLES, "apps"), appsTableInit());
setTableStyles(html, "apps", ".queue {width:6em}", ".ui {width:8em}");
// Set the correct title.
String reqState = $(APP_STATE);
reqState = (reqState == null || reqState.isEmpty() ? "All" : reqState);
setTitle(sjoin(reqState, "Applications"));
}
private String appsTableInit() {
// id, user, name, queue, starttime, finishtime, state, status, progress, ui
return tableInit()
.append(", 'aaData': appsTableData")
.append(", bDeferRender: true")
.append(", bProcessing: true")
.append("\n, aoColumnDefs: ")
.append(getAppsTableColumnDefs())
// Sort by id upon page load
.append(", aaSorting: [[0, 'desc']]}").toString();
}
protected String getAppsTableColumnDefs() {
StringBuilder sb = new StringBuilder();
return sb
.append("[\n")
.append("{'sType':'string', 'aTargets': [0]")
.append(", 'mRender': parseHadoopID }")
.append("\n, {'sType':'numeric', 'aTargets': [6, 7]")
.append(", 'mRender': renderHadoopDate }")
.append("\n, {'sType':'numeric', bSearchable:false, 'aTargets': [10]")
.append(", 'mRender': parseHadoopProgress }]").toString();
}
@Override
protected Class<? extends SubView> content() {
return AppsBlock.class;
}
}
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