hadoop LogAggregationWebUtils 源码

  • 2022-10-20
  • 浏览 (20)

haddop LogAggregationWebUtils 代码

文件路径:/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/LogAggregationWebUtils.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.logaggregation;

import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.webapp.view.HtmlBlock.Block;

/**
 * Utils for rendering aggregated logs block.
 *
 */
@Private
public final class LogAggregationWebUtils {

  private LogAggregationWebUtils() {}

  /**
   * Parse start index from html.
   * @param html the html
   * @param startStr the start index string
   * @return the startIndex
   */
  public static long getLogStartIndex(Block html, String startStr)
      throws NumberFormatException {
    long start = -4096;

    if (startStr != null && !startStr.isEmpty()) {
      start = Long.parseLong(startStr);
    }
    return start;
  }

  /**
   * Parse end index from html.
   * @param html the html
   * @param endStr the end index string
   * @return the endIndex
   */
  public static long getLogEndIndex(Block html, String endStr)
      throws NumberFormatException {
    long end = Long.MAX_VALUE;

    if (endStr != null && !endStr.isEmpty()) {
      end = Long.parseLong(endStr);
    }
    return end;
  }

  /**
   * Verify and parse containerId.
   * @param html the html
   * @param containerIdStr the containerId string
   * @return the {@link ContainerId}
   */
  public static ContainerId verifyAndGetContainerId(Block html,
      String containerIdStr) {
    if (containerIdStr == null || containerIdStr.isEmpty()) {
      html.h1().__("Cannot get container logs without a ContainerId").__();
      return null;
    }
    ContainerId containerId = null;
    try {
      containerId = ContainerId.fromString(containerIdStr);
    } catch (IllegalArgumentException e) {
      html.h1()
          .__("Cannot get container logs for invalid containerId: "
              + containerIdStr).__();
      return null;
    }
    return containerId;
  }

  /**
   * Verify and parse NodeId.
   * @param html the html
   * @param nodeIdStr the nodeId string
   * @return the {@link NodeId}
   */
  public static NodeId verifyAndGetNodeId(Block html, String nodeIdStr) {
    if (nodeIdStr == null || nodeIdStr.isEmpty()) {
      html.h1().__("Cannot get container logs without a NodeId").__();
      return null;
    }
    NodeId nodeId = null;
    try {
      nodeId = NodeId.fromString(nodeIdStr);
    } catch (IllegalArgumentException e) {
      html.h1().__("Cannot get container logs. Invalid nodeId: " + nodeIdStr)
          .__();
      return null;
    }
    return nodeId;
  }

  /**
   * Verify and parse the application owner.
   * @param html the html
   * @param appOwner the Application owner
   * @return the appOwner
   */
  public static String verifyAndGetAppOwner(Block html, String appOwner) {
    if (appOwner == null || appOwner.isEmpty()) {
      html.h1().__("Cannot get container logs without an app owner").__();
    }
    return appOwner;
  }

  /**
   * Parse log start time from html.
   * @param startStr the start time string
   * @return the startIndex
   */
  public static long getLogStartTime(String startStr)
      throws NumberFormatException {
    long start = 0;

    if (startStr != null && !startStr.isEmpty()) {
      start = Long.parseLong(startStr);
    }
    return start;
  }

  /**
   * Parse log end time from html.
   * @param endStr the end time string
   * @return the endIndex
   */
  public static long getLogEndTime(String endStr)
      throws NumberFormatException {
    long end = Long.MAX_VALUE;

    if (endStr != null && !endStr.isEmpty()) {
      end = Long.parseLong(endStr);
    }
    return end;
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AggregatedLogDeletionService 源码

hadoop AggregatedLogFormat 源码

hadoop ContainerLogAggregationType 源码

hadoop ContainerLogFileInfo 源码

hadoop ContainerLogMeta 源码

hadoop ContainerLogsRequest 源码

hadoop ExtendedLogMetaRequest 源码

hadoop LogAggregationMetaCollector 源码

hadoop LogAggregationUtils 源码

hadoop LogCLIHelpers 源码

0  赞