001/* 002 * (C) Copyright 2020 Nuxeo (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Florent Guillaume 018 */ 019package org.nuxeo.ecm.core.management.jtajca.internal; 020 021import org.apache.commons.pool2.impl.GenericKeyedObjectPool; 022import org.nuxeo.ecm.core.management.jtajca.ConnectionPoolMonitor; 023import org.nuxeo.ecm.core.management.jtajca.internal.DefaultMonitorComponent.ServerInstance; 024import org.nuxeo.runtime.metrics.MetricsService; 025 026import io.dropwizard.metrics5.MetricName; 027import io.dropwizard.metrics5.MetricRegistry; 028import io.dropwizard.metrics5.SharedMetricRegistries; 029import io.dropwizard.metrics5.jvm.JmxAttributeGauge; 030 031/** 032 * Connection pool monitor for an Apache Commons Pool. 033 */ 034public class ObjectPoolMonitor implements ConnectionPoolMonitor { 035 036 protected static final MetricRegistry METRICS = SharedMetricRegistries.getOrCreate(MetricsService.class.getName()); 037 038 protected final String name; 039 040 protected final GenericKeyedObjectPool<String, ?> pool; 041 042 protected final String key; 043 044 protected MetricName countGauge; 045 046 protected MetricName idleGauge; 047 048 protected MetricName killedGauge; 049 050 protected ObjectPoolMonitor(String name, GenericKeyedObjectPool<String, ?> pool, String key) { 051 this.name = name; 052 this.pool = pool; 053 this.key = key; 054 } 055 056 protected ServerInstance self; 057 058 @Override 059 public void install() { 060 self = DefaultMonitorComponent.bind(this, name); 061 countGauge = MetricName.build("nuxeo", "repositories", "repository", "connection", "count") 062 .tagged("repository", name); 063 idleGauge = MetricName.build("nuxeo", "repositories", "repository", "connection", "idle") 064 .tagged("repository", name); 065 killedGauge = MetricName.build("nuxeo", "repositories", "repository", "connection", "killed") 066 .tagged("repository", name); 067 METRICS.register(countGauge, new JmxAttributeGauge(self.name, "ConnectionCount")); 068 METRICS.register(idleGauge, new JmxAttributeGauge(self.name, "IdleConnectionCount")); 069 METRICS.register(killedGauge, new JmxAttributeGauge(self.name, "KilledActiveConnectionCount")); 070 } 071 072 @Override 073 public void uninstall() { 074 DefaultMonitorComponent.unbind(self); 075 METRICS.remove(countGauge); 076 METRICS.remove(idleGauge); 077 METRICS.remove(killedGauge); 078 self = null; 079 } 080 081 @Override 082 public String getName() { 083 return name; 084 } 085 086 @Override 087 public int getConnectionCount() { 088 return pool.getNumActive(key) + pool.getNumIdle(key); 089 } 090 091 @Override 092 public int getIdleConnectionCount() { 093 return pool.getNumIdle(key); 094 } 095 096 @Override 097 public int getBlockingTimeoutMilliseconds() { 098 return (int) pool.getMaxWaitMillis(); 099 } 100 101 @Override 102 public int getIdleTimeoutMinutes() { 103 return -1; 104 } 105 106 @Override 107 public int getActiveTimeoutMinutes() { 108 return -1; 109 } 110 111 @Override 112 public void reset() { 113 pool.clear(); 114 } 115 116 @Override 117 public long getKilledActiveConnectionCount() { 118 return 0; 119 } 120 121 @Override 122 public int killActiveTimedoutConnections() { 123 return 0; 124 } 125 126}