001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.geronimo.monitoring; 018 019 import java.net.URI; 020 import java.util.HashSet; 021 import java.util.Iterator; 022 import java.util.Set; 023 024 import javax.management.ObjectName; 025 026 import org.apache.geronimo.kernel.Kernel; 027 import org.apache.geronimo.kernel.KernelRegistry; 028 029 import org.apache.geronimo.gbean.AbstractName; 030 import org.apache.geronimo.gbean.AbstractNameQuery; 031 032 public class MBeanHelper { 033 034 /** 035 * Return all MBeans that provide stats 036 */ 037 public static Set<String> getStatsProvidersMBeans(Set<String> allMBeans) { 038 Kernel kernel = KernelRegistry.getSingleKernel(); 039 Set<String> result = new HashSet(); 040 041 try { 042 for (Iterator it = allMBeans.iterator(); it.hasNext(); ) { 043 try { 044 String mbeanName = (String) it.next(); 045 Boolean statisticsProvider = (Boolean) kernel.getAttribute(new ObjectName(mbeanName), "statisticsProvider"); 046 if (Boolean.TRUE.equals(statisticsProvider)) { 047 result.add(mbeanName); 048 } 049 } catch (Exception e) { 050 // this will happen if there is not a matching attribute "statisticsProvider" 051 } 052 } 053 } catch(Exception e) { 054 e.printStackTrace(); 055 } 056 057 return result; 058 } 059 }