hadoop IOStatisticsStoreBuilder 源码
haddop IOStatisticsStoreBuilder 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/statistics/impl/IOStatisticsStoreBuilder.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;
/**
* Builder of the {@link IOStatisticsStore} implementation.
*/
public interface IOStatisticsStoreBuilder {
/**
* Declare a varargs list of counters to add.
* @param keys names of statistics.
* @return this builder.
*/
IOStatisticsStoreBuilder withCounters(String... keys);
/**
* Declare a varargs list of gauges to add.
* @param keys names of statistics.
* @return this builder.
*/
IOStatisticsStoreBuilder withGauges(String... keys);
/**
* Declare a varargs list of maximums to add.
* @param keys names of statistics.
* @return this builder.
*/
IOStatisticsStoreBuilder withMaximums(String... keys);
/**
* Declare a varargs list of minimums to add.
* @param keys names of statistics.
* @return this builder.
*/
IOStatisticsStoreBuilder withMinimums(String... keys);
/**
* Declare a varargs list of means to add.
* @param keys names of statistics.
* @return this builder.
*/
IOStatisticsStoreBuilder withMeanStatistics(String... keys);
/**
* Add a statistic in the counter, min, max and mean maps for each
* declared statistic prefix.
* @param prefixes prefixes for the stats.
* @return this
*/
IOStatisticsStoreBuilder withDurationTracking(
String... prefixes);
/**
* Build the collector.
* @return a new collector.
*/
IOStatisticsStore build();
}
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