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Apache ZooKeeper Server Source Code
Apache ZooKeeper is an open-source server which enables highly reliable distributed coordination.
Apache ZooKeeper Server Source Code files are provided in the source package file, apache-zookeeper-3.8.0.tar.gz.
You can download apache-zookeeper-3.8.0.tar.gz as described in the previous tutorial and go to the "zookeeper-server" sub-folder to view Apache ZooKeeper Server Source Code files.
You can also browse Apache ZooKeeper Server Source Code below:
✍: FYIcenter.com
⏎ org/apache/zookeeper/metrics/MetricsContext.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.zookeeper.metrics; /** * A MetricsContext is like a namespace for metrics. Each component/submodule * will have its own MetricsContext. * <p> * In some cases it is possible to have a separate MetricsContext for each * instance of a component, for instance on the server side a possible usecase * it to gather metrics for every other peer. * </p> * <p> * Contexts are organized in a hierarchy. * </p> * */ public interface MetricsContext { /** * Returns a sub context. * * @param name the name of the subcontext * * @return a new metrics context. */ MetricsContext getContext(String name); /** * Returns a counter. * * @param name * @return the counter identified by name in this context. */ Counter getCounter(String name); /** * Returns the CounterSet identified by the given name * Null name is not allowed * * @param name * @return CounterSet identified by the name in this context. */ CounterSet getCounterSet(String name); /** * Registers an user provided {@link Gauge} which will be called by the * MetricsProvider in order to sample an integer value. * If another Gauge was already registered the new one will * take its place. * Registering a null callback is not allowed. * * @param name unique name of the Gauge in this context * @param gauge the implementation of the Gauge * */ void registerGauge(String name, Gauge gauge); /** * Unregisters the user provided {@link Gauge} bound to the given name. * * @param name unique name of the Gauge in this context * */ void unregisterGauge(String name); /** * Registers a user provided {@link GaugeSet} which will be called by the * MetricsProvider in order to sample number values. * If another GaugeSet was already registered, the new one will take its place. * Registering with a null name or null callback is not allowed. * * @param name unique name of the GaugeSet in this context * @param gaugeSet the implementation of the GaugeSet * */ void registerGaugeSet(String name, GaugeSet gaugeSet); /** * Unregisters the user provided {@link GaugeSet} bound to the given name. * * Unregistering with a null name is not allowed. * @param name unique name of the GaugeSet in this context * */ void unregisterGaugeSet(String name); enum DetailLevel { /** * The returned Summary is expected to track only simple aggregated * values, like min/max/avg */ BASIC, /** * It is expected that the returned Summary performs expensive * aggregations, like percentiles. */ ADVANCED } /** * Returns a summary. * * @param name * @param detailLevel * @return the summary identified by name in this context. */ Summary getSummary(String name, DetailLevel detailLevel); /** * Returns a set of summaries. * * @param name * @param detailLevel * @return the summary identified by name in this context. */ SummarySet getSummarySet(String name, DetailLevel detailLevel); }
⏎ org/apache/zookeeper/metrics/MetricsContext.java
Or download all of them as a single archive file:
File name: zookeeper-server-3.8.0-fyi.zip File size: 885581 bytes Release date: 2022-02-25 Download
⇒ Apache ZooKeeper Jute Source Code
⇐ Download and Install Apache ZooKeeper Source Package
2022-11-16, 13769👍, 0💬
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