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 java.util.Arrays; 022import java.util.Collection; 023import java.util.Comparator; 024 025import javax.management.ObjectInstance; 026 027import org.nuxeo.ecm.core.api.CoreInstance; 028import org.nuxeo.ecm.core.api.CoreInstance.RegistrationInfo; 029import org.nuxeo.ecm.core.management.jtajca.CoreSessionMonitor; 030import org.nuxeo.ecm.core.management.jtajca.Defaults; 031import org.nuxeo.runtime.metrics.MetricsService; 032 033import com.codahale.metrics.JmxAttributeGauge; 034import com.codahale.metrics.MetricRegistry; 035import com.codahale.metrics.SharedMetricRegistries; 036 037public class DefaultCoreSessionMonitor implements CoreSessionMonitor { 038 039 // @since 5.7.2 040 protected final MetricRegistry registry = SharedMetricRegistries.getOrCreate(MetricsService.class.getName()); 041 042 @Override 043 public int getCount() { 044 return CoreInstance.getInstance().getNumberOfSessions(); 045 } 046 047 @Override 048 public String[] getInfos() { 049 return toInfos(toSortedRegistration(CoreInstance.getInstance().getRegistrationInfos())); 050 } 051 052 public RegistrationInfo[] toSortedRegistration(Collection<RegistrationInfo> infos) { 053 RegistrationInfo[] sortedInfos = infos.toArray(new RegistrationInfo[infos.size()]); 054 Arrays.sort(sortedInfos, new Comparator<RegistrationInfo>() { 055 056 @Override 057 public int compare(RegistrationInfo o1, RegistrationInfo o2) { 058 return o2.session.getSessionId().compareTo(o1.session.getSessionId()); 059 } 060 061 }); 062 return sortedInfos; 063 } 064 065 public String[] toInfos(RegistrationInfo[] infos) { 066 String[] values = new String[infos.length]; 067 for (int i = 0; i < infos.length; ++i) { 068 values[i] = Defaults.instance.printStackTrace(infos[i]); 069 } 070 return values; 071 } 072 073 protected ObjectInstance self; 074 075 @Override 076 public void install() { 077 self = DefaultMonitorComponent.bind(CoreSessionMonitor.class, this); 078 registry.register(MetricRegistry.name("nuxeo.repositories", "sessions"), 079 new JmxAttributeGauge(self.getObjectName(), "Count")); 080 } 081 082 @Override 083 public void uninstall() { 084 DefaultMonitorComponent.unbind(self); 085 registry.remove(MetricRegistry.name("nuxeo.repositories", "sessions")); 086 self = null; 087 } 088 089}