hadoop IOStatisticsStoreBuilderImpl 源码

haddop IOStatisticsStoreBuilderImpl 代码

文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/statistics/impl/IOStatisticsStoreBuilderImpl.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.fs.statistics.impl;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import static org.apache.hadoop.fs.statistics.StoreStatisticNames.SUFFIX_FAILURES;
import static org.apache.hadoop.fs.statistics.StoreStatisticNames.SUFFIX_MAX;
import static org.apache.hadoop.fs.statistics.StoreStatisticNames.SUFFIX_MEAN;
import static org.apache.hadoop.fs.statistics.StoreStatisticNames.SUFFIX_MIN;

/**
 * Builder for an IOStatistics store..
 */
final class IOStatisticsStoreBuilderImpl implements
    IOStatisticsStoreBuilder {

  private final List<String> counters = new ArrayList<>();

  private final List<String> gauges = new ArrayList<>();

  private final List<String> minimums = new ArrayList<>();

  private final List<String> maximums = new ArrayList<>();

  private final List<String> meanStatistics = new ArrayList<>();

  @Override
  public IOStatisticsStoreBuilderImpl withCounters(final String... keys) {
    counters.addAll(Arrays.asList(keys));
    return this;
  }

  @Override
  public IOStatisticsStoreBuilderImpl withGauges(final String... keys) {
    gauges.addAll(Arrays.asList(keys));
    return this;
  }

  @Override
  public IOStatisticsStoreBuilderImpl withMaximums(final String... keys) {
    maximums.addAll(Arrays.asList(keys));
    return this;
  }

  @Override
  public IOStatisticsStoreBuilderImpl withMinimums(final String... keys) {
    minimums.addAll(Arrays.asList(keys));
    return this;
  }

  @Override
  public IOStatisticsStoreBuilderImpl withMeanStatistics(
      final String... keys) {
    meanStatistics.addAll(Arrays.asList(keys));
    return this;
  }

  @Override
  public IOStatisticsStoreBuilderImpl withDurationTracking(
      final String... prefixes) {
    for (String p : prefixes) {
      withCounters(p, p + SUFFIX_FAILURES);
      withMinimums(
          p + SUFFIX_MIN,
          p + SUFFIX_FAILURES + SUFFIX_MIN);
      withMaximums(
          p + SUFFIX_MAX,
          p + SUFFIX_FAILURES + SUFFIX_MAX);
      withMeanStatistics(
          p + SUFFIX_MEAN,
          p + SUFFIX_FAILURES + SUFFIX_MEAN);
    }
    return this;
  }

  @Override
  public IOStatisticsStore build() {
    return new IOStatisticsStoreImpl(counters, gauges, minimums,
        maximums, meanStatistics);
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AbstractIOStatisticsImpl 源码

hadoop DynamicIOStatistics 源码

hadoop DynamicIOStatisticsBuilder 源码

hadoop EmptyIOStatistics 源码

hadoop EmptyIOStatisticsContextImpl 源码

hadoop EmptyIOStatisticsStore 源码

hadoop EvaluatingStatisticsMap 源码

hadoop IOStatisticsBinding 源码

hadoop IOStatisticsContextImpl 源码

hadoop IOStatisticsContextIntegration 源码