hadoop AggregatedLogsPage 源码

  • 2022-10-20
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haddop AggregatedLogsPage 代码

文件路径:/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/log/AggregatedLogsPage.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.webapp.log;

import static org.apache.hadoop.yarn.webapp.YarnWebParams.CONTAINER_ID;
import static org.apache.hadoop.yarn.webapp.YarnWebParams.ENTITY_STRING;
import static org.apache.hadoop.yarn.util.StringHelper.join;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.ACCORDION;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.ACCORDION_ID;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;


import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.yarn.webapp.SubView;
import org.apache.hadoop.yarn.webapp.view.TwoColumnLayout;

@InterfaceAudience.LimitedPrivate({"YARN", "MapReduce"})
public class AggregatedLogsPage extends TwoColumnLayout {

  /* (non-Javadoc)
   * @see org.apache.hadoop.yarn.server.nodemanager.webapp.NMView#preHead(org.apache.hadoop.yarn.webapp.hamlet.Hamlet.HTML)
   */
  @Override
  protected void preHead(Page.HTML<__> html) {
    String logEntity = $(ENTITY_STRING);
    if (logEntity == null || logEntity.isEmpty()) {
      logEntity = $(CONTAINER_ID);
    }
    if (logEntity == null || logEntity.isEmpty()) {
      logEntity = "UNKNOWN";
    }
    set(TITLE, join("Logs for ", logEntity));
    set(ACCORDION_ID, "nav");
    set(initID(ACCORDION, "nav"), "{autoHeight:false, active:0}");
  }

  @Override
  protected Class<? extends SubView> content() {
    return AggregatedLogsBlock.class;
  }
  
  @Override
  protected Class<? extends SubView> nav() {
    return AggregatedLogsNavBlock.class;
  }
}

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