hadoop TimelineParserForNumericFilters 源码

  • 2022-10-20
  • 浏览 (215)

haddop TimelineParserForNumericFilters 代码

文件路径:/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/reader/TimelineParserForNumericFilters.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.timelineservice.reader;

import java.io.IOException;

import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.server.timeline.GenericObjectMapper;
import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineCompareFilter;
import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineCompareOp;
import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineFilter;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.TimelineStorageUtils;

/**
 * Used for parsing numerical filters such as metric filters.
 */
@Private
@Unstable
class TimelineParserForNumericFilters extends TimelineParserForCompareExpr {

  public TimelineParserForNumericFilters(String expression) {
    super(expression, "Metric Filter");
  }

  protected TimelineFilter createFilter() {
    return new TimelineCompareFilter();
  }

  @Override
  protected void setCompareOpToCurrentFilter(TimelineCompareOp compareOp,
      boolean keyMustExistFlag) {
    ((TimelineCompareFilter)getCurrentFilter()).setCompareOp(
        compareOp, keyMustExistFlag);
  }

  protected Object parseValue(String strValue) throws TimelineParseException {
    Object value = null;
    try {
      value = GenericObjectMapper.OBJECT_READER.readValue(strValue);
    } catch (IOException e) {
      throw new TimelineParseException("Value cannot be parsed.");
    }
    if (value == null || !(TimelineStorageUtils.isIntegralValue(value))) {
      throw new TimelineParseException("Value is not a number.");
    }
    return value;
  }

  protected void setValueToCurrentFilter(Object value) {
    TimelineFilter currentFilter = getCurrentFilter();
    if (currentFilter != null) {
      ((TimelineCompareFilter)currentFilter).setValue(value);
    }
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop TimelineDataToRetrieve 源码

hadoop TimelineEntityFilters 源码

hadoop TimelineFromIdConverter 源码

hadoop TimelineParseConstants 源码

hadoop TimelineParseException 源码

hadoop TimelineParser 源码

hadoop TimelineParserForCompareExpr 源码

hadoop TimelineParserForDataToRetrieve 源码

hadoop TimelineParserForEqualityExpr 源码

hadoop TimelineParserForExistFilters 源码

0  赞