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.Comparator; 023import java.util.List; 024 025import org.nuxeo.ecm.core.api.CoreSessionService; 026import org.nuxeo.ecm.core.api.CoreSessionService.CoreSessionRegistrationInfo; 027import org.nuxeo.ecm.core.management.jtajca.CoreSessionMonitor; 028import org.nuxeo.ecm.core.management.jtajca.Defaults; 029import org.nuxeo.ecm.core.management.jtajca.internal.DefaultMonitorComponent.ServerInstance; 030import org.nuxeo.runtime.api.Framework; 031import org.nuxeo.runtime.metrics.MetricsService; 032 033import com.codahale.metrics.MetricRegistry; 034import com.codahale.metrics.SharedMetricRegistries; 035import com.codahale.metrics.jvm.JmxAttributeGauge; 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 Framework.getService(CoreSessionService.class).getNumberOfOpenCoreSessions(); 045 } 046 047 @Override 048 public String[] getInfos() { 049 List<CoreSessionRegistrationInfo> infos = Framework.getService(CoreSessionService.class) 050 .getCoreSessionRegistrationInfos(); 051 return toInfos(toSortedRegistration(infos)); 052 } 053 054 public CoreSessionRegistrationInfo[] toSortedRegistration(List<CoreSessionRegistrationInfo> infos) { 055 CoreSessionRegistrationInfo[] sortedInfos = infos.toArray(new CoreSessionRegistrationInfo[infos.size()]); 056 Arrays.sort(sortedInfos, new Comparator<CoreSessionRegistrationInfo>() { 057 058 @Override 059 public int compare(CoreSessionRegistrationInfo o1, CoreSessionRegistrationInfo o2) { 060 return o2.getCoreSession().getSessionId().compareTo(o1.getCoreSession().getSessionId()); 061 } 062 063 }); 064 return sortedInfos; 065 } 066 067 public String[] toInfos(CoreSessionRegistrationInfo[] infos) { 068 String[] values = new String[infos.length]; 069 for (int i = 0; i < infos.length; ++i) { 070 values[i] = Defaults.instance.printStackTrace(infos[i]); 071 } 072 return values; 073 } 074 075 protected ServerInstance self; 076 077 @Override 078 public void install() { 079 self = DefaultMonitorComponent.bind(CoreSessionMonitor.class, this); 080 registry.register(MetricRegistry.name("nuxeo.repositories", "sessions"), 081 new JmxAttributeGauge(self.name, "Count")); 082 } 083 084 @Override 085 public void uninstall() { 086 DefaultMonitorComponent.unbind(self); 087 registry.remove(MetricRegistry.name("nuxeo.repositories", "sessions")); 088 self = null; 089 } 090 091}