001/* 002 * (C) Copyright 2013 Nuxeo SA (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 * Stephane Lacoin 018 */ 019package org.nuxeo.ecm.core.management.jtajca.internal; 020 021import org.nuxeo.ecm.core.api.CoreSessionService; 022import org.nuxeo.ecm.core.management.jtajca.CoreSessionMonitor; 023import org.nuxeo.ecm.core.management.jtajca.internal.DefaultMonitorComponent.ServerInstance; 024import org.nuxeo.runtime.api.Framework; 025import org.nuxeo.runtime.metrics.MetricsService; 026 027import io.dropwizard.metrics5.MetricName; 028import io.dropwizard.metrics5.MetricRegistry; 029import io.dropwizard.metrics5.SharedMetricRegistries; 030import io.dropwizard.metrics5.jvm.JmxAttributeGauge; 031 032public class DefaultCoreSessionMonitor implements CoreSessionMonitor { 033 034 // @since 5.7.2 035 protected final MetricRegistry registry = SharedMetricRegistries.getOrCreate(MetricsService.class.getName()); 036 037 protected MetricName sessionGauge; 038 039 @Override 040 public int getCount() { 041 return Framework.getService(CoreSessionService.class).getNumberOfOpenCoreSessions(); 042 } 043 044 @Override 045 public String[] getInfos() { 046 return new String[0]; 047 } 048 049 protected ServerInstance self; 050 051 @Override 052 public void install() { 053 self = DefaultMonitorComponent.bind(CoreSessionMonitor.class, this); 054 sessionGauge = MetricRegistry.name("nuxeo.repositories.sessions"); 055 registry.register(sessionGauge, new JmxAttributeGauge(self.name, "Count")); 056 } 057 058 @Override 059 public void uninstall() { 060 DefaultMonitorComponent.unbind(self); 061 registry.remove(sessionGauge); 062 self = null; 063 } 064 065}