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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.regionserver;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.util.Collections;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.Map;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.concurrent.ConcurrentHashMap;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.metrics.BaseSourceImpl;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.metrics2.MetricsCollector;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.metrics2.MetricsRecordBuilder;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.metrics2.lib.Interns;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.slf4j.Logger;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">030</span><span id="line-30"></span> |
| <span class="source-line-no">031</span><span id="line-31">@InterfaceAudience.Private</span> |
| <span class="source-line-no">032</span><span id="line-32">public class MetricsUserAggregateSourceImpl extends BaseSourceImpl</span> |
| <span class="source-line-no">033</span><span id="line-33"> implements MetricsUserAggregateSource {</span> |
| <span class="source-line-no">034</span><span id="line-34"></span> |
| <span class="source-line-no">035</span><span id="line-35"> private static final Logger LOG = LoggerFactory.getLogger(MetricsUserAggregateSourceImpl.class);</span> |
| <span class="source-line-no">036</span><span id="line-36"></span> |
| <span class="source-line-no">037</span><span id="line-37"> private final ConcurrentHashMap<String, MetricsUserSource> userSources =</span> |
| <span class="source-line-no">038</span><span id="line-38"> new ConcurrentHashMap<String, MetricsUserSource>();</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40"> public MetricsUserAggregateSourceImpl() {</span> |
| <span class="source-line-no">041</span><span id="line-41"> this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT);</span> |
| <span class="source-line-no">042</span><span id="line-42"> }</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44"> public MetricsUserAggregateSourceImpl(String metricsName, String metricsDescription,</span> |
| <span class="source-line-no">045</span><span id="line-45"> String metricsContext, String metricsJmxContext) {</span> |
| <span class="source-line-no">046</span><span id="line-46"> super(metricsName, metricsDescription, metricsContext, metricsJmxContext);</span> |
| <span class="source-line-no">047</span><span id="line-47"> }</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> @Override</span> |
| <span class="source-line-no">050</span><span id="line-50"> public MetricsUserSource getOrCreateMetricsUser(String user) {</span> |
| <span class="source-line-no">051</span><span id="line-51"> MetricsUserSource source = userSources.get(user);</span> |
| <span class="source-line-no">052</span><span id="line-52"> if (source != null) {</span> |
| <span class="source-line-no">053</span><span id="line-53"> return source;</span> |
| <span class="source-line-no">054</span><span id="line-54"> }</span> |
| <span class="source-line-no">055</span><span id="line-55"> source = new MetricsUserSourceImpl(user, this);</span> |
| <span class="source-line-no">056</span><span id="line-56"> MetricsUserSource prev = userSources.putIfAbsent(user, source);</span> |
| <span class="source-line-no">057</span><span id="line-57"></span> |
| <span class="source-line-no">058</span><span id="line-58"> if (prev != null) {</span> |
| <span class="source-line-no">059</span><span id="line-59"> return prev;</span> |
| <span class="source-line-no">060</span><span id="line-60"> } else {</span> |
| <span class="source-line-no">061</span><span id="line-61"> // register the new metrics now</span> |
| <span class="source-line-no">062</span><span id="line-62"> register(source);</span> |
| <span class="source-line-no">063</span><span id="line-63"> }</span> |
| <span class="source-line-no">064</span><span id="line-64"> return source;</span> |
| <span class="source-line-no">065</span><span id="line-65"> }</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67"> public void register(MetricsUserSource source) {</span> |
| <span class="source-line-no">068</span><span id="line-68"> synchronized (this) {</span> |
| <span class="source-line-no">069</span><span id="line-69"> source.register();</span> |
| <span class="source-line-no">070</span><span id="line-70"> }</span> |
| <span class="source-line-no">071</span><span id="line-71"> }</span> |
| <span class="source-line-no">072</span><span id="line-72"></span> |
| <span class="source-line-no">073</span><span id="line-73"> @Override</span> |
| <span class="source-line-no">074</span><span id="line-74"> public void deregister(MetricsUserSource toRemove) {</span> |
| <span class="source-line-no">075</span><span id="line-75"> try {</span> |
| <span class="source-line-no">076</span><span id="line-76"> synchronized (this) {</span> |
| <span class="source-line-no">077</span><span id="line-77"> MetricsUserSource source = userSources.remove(toRemove.getUser());</span> |
| <span class="source-line-no">078</span><span id="line-78"> if (source != null) {</span> |
| <span class="source-line-no">079</span><span id="line-79"> source.deregister();</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"> }</span> |
| <span class="source-line-no">082</span><span id="line-82"> } catch (Exception e) {</span> |
| <span class="source-line-no">083</span><span id="line-83"> // Ignored. If this errors out it means that someone is double</span> |
| <span class="source-line-no">084</span><span id="line-84"> // closing the user source and the user metrics is already nulled out.</span> |
| <span class="source-line-no">085</span><span id="line-85"> LOG.info("Error trying to remove " + toRemove + " from " + getClass().getSimpleName(), e);</span> |
| <span class="source-line-no">086</span><span id="line-86"> }</span> |
| <span class="source-line-no">087</span><span id="line-87"> }</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> @Override</span> |
| <span class="source-line-no">090</span><span id="line-90"> public Map<String, MetricsUserSource> getUserSources() {</span> |
| <span class="source-line-no">091</span><span id="line-91"> return Collections.unmodifiableMap(userSources);</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> @Override</span> |
| <span class="source-line-no">095</span><span id="line-95"> public void getMetrics(MetricsCollector collector, boolean all) {</span> |
| <span class="source-line-no">096</span><span id="line-96"> MetricsRecordBuilder mrb = collector.addRecord(metricsName);</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> if (userSources != null) {</span> |
| <span class="source-line-no">099</span><span id="line-99"> for (MetricsUserSource userMetricSource : userSources.values()) {</span> |
| <span class="source-line-no">100</span><span id="line-100"> if (userMetricSource instanceof MetricsUserSourceImpl) {</span> |
| <span class="source-line-no">101</span><span id="line-101"> ((MetricsUserSourceImpl) userMetricSource).snapshot(mrb, all);</span> |
| <span class="source-line-no">102</span><span id="line-102"> }</span> |
| <span class="source-line-no">103</span><span id="line-103"> }</span> |
| <span class="source-line-no">104</span><span id="line-104"> mrb.addGauge(Interns.info(NUM_USERS, NUMBER_OF_USERS_DESC), userSources.size());</span> |
| <span class="source-line-no">105</span><span id="line-105"> metricsRegistry.snapshot(mrb, all);</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"> }</span> |
| <span class="source-line-no">108</span><span id="line-108">}</span> |
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| </pre> |
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