001/* 002 * (C) Copyright 2010 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 * Nuxeo - initial API and implementation 018 */ 019 020package org.nuxeo.runtime.management.metrics; 021 022import org.javasimon.SimonManager; 023import org.nuxeo.runtime.model.ComponentContext; 024import org.nuxeo.runtime.model.DefaultComponent; 025import org.osgi.framework.BundleContext; 026 027// @deprecated since 11.4: use dropwizard metrics instead 028@Deprecated(since = "11.4") 029public class MetricComponent extends DefaultComponent { 030 031 protected final MetricSerializer serializer = new MetricSerializer(); 032 033 protected final MetricEnabler enabler = new MetricEnabler(); 034 035 @Override 036 public <T> T getAdapter(Class<T> adapter) { 037 if (MetricSerializerMXBean.class.isAssignableFrom(adapter)) { 038 return adapter.cast(serializer); 039 } 040 if (MetricEnabler.class.isAssignableFrom(adapter)) { 041 return adapter.cast(enabler); 042 } 043 if (MetricSerializer.class.isAssignableFrom(adapter)) { 044 return adapter.cast(serializer); 045 } 046 return super.getAdapter(adapter); 047 } 048 049 protected final MetricRegister register = new MetricRegister(); 050 051 protected final MetricRegisteringCallback registeringCB = new MetricRegisteringCallback(register); 052 053 @Override 054 public void activate(ComponentContext context) { 055 super.activate(context); 056 doStart(); 057 } 058 059 @Override 060 public void deactivate(ComponentContext context) { 061 doStop(); 062 super.deactivate(context); 063 } 064 065 public void start(BundleContext context) { 066 doStart(); 067 } 068 069 public void stop(BundleContext context) { 070 doStop(); 071 } 072 073 protected void doStart() { 074 enabler.setSerializer(serializer); 075 SimonManager.enable(); 076 SimonManager.callback().addCallback(registeringCB); 077 register.registerMXBean(enabler, "enabler", MetricEnablerMXBean.class, "Feature"); 078 register.registerMXBean(serializer, "serializer", MetricSerializerMXBean.class, "Feature"); 079 } 080 081 protected void doStop() { 082 SimonManager.disable(); 083 if (SimonManager.callback() != null) { 084 SimonManager.callback().removeCallback(registeringCB); 085 } 086 register.unregisterAll(); 087 } 088 089}