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.activemq.plugin; 018 019 import java.util.ArrayList; 020 import java.util.StringTokenizer; 021 import java.util.regex.Pattern; 022 023 import org.apache.activemq.broker.Broker; 024 import org.apache.activemq.broker.BrokerPlugin; 025 import org.apache.commons.logging.Log; 026 import org.apache.commons.logging.LogFactory; 027 028 /** 029 * @author Filip Hanik 030 * @org.apache.xbean.XBean element="discardingDLQBrokerPlugin" 031 * @version 1.0 032 */ 033 public class DiscardingDLQBrokerPlugin implements BrokerPlugin { 034 public DiscardingDLQBrokerPlugin() { 035 } 036 037 public static Log log = LogFactory.getLog(DiscardingDLQBrokerPlugin.class); 038 private boolean dropTemporaryTopics = true; 039 private boolean dropTemporaryQueues = true; 040 private boolean dropAll = true; 041 private String dropOnly; 042 private int reportInterval = 1000; 043 044 /** 045 * Installs the plugin into the interceptor chain of the broker, returning the new intercepted broker to use. 046 * @param broker Broker 047 * @throws Exception 048 * @return Broker 049 * @todo Implement this org.apache.activemq.broker.BrokerPlugin method 050 */ 051 public Broker installPlugin(Broker broker) throws Exception { 052 log.info("Installing Discarding Dead Letter Queue broker plugin[dropAll="+isDropAll()+ 053 "; dropTemporaryTopics="+isDropTemporaryTopics()+"; dropTemporaryQueues="+ 054 isDropTemporaryQueues()+"; dropOnly="+getDropOnly()+"; reportInterval="+ 055 getReportInterval()+"]"); 056 DiscardingDLQBroker cb = new DiscardingDLQBroker(broker); 057 cb.setDropAll(isDropAll()); 058 cb.setDropTemporaryQueues(isDropTemporaryQueues()); 059 cb.setDropTemporaryTopics(isDropTemporaryTopics()); 060 cb.setDestFilter(getDestFilter()); 061 return cb; 062 } 063 064 public boolean isDropAll() { 065 return dropAll; 066 } 067 068 public boolean isDropTemporaryQueues() { 069 return dropTemporaryQueues; 070 } 071 072 public boolean isDropTemporaryTopics() { 073 return dropTemporaryTopics; 074 } 075 076 public String getDropOnly() { 077 return dropOnly; 078 } 079 080 public int getReportInterval() { 081 return reportInterval; 082 } 083 084 public void setDropTemporaryTopics(boolean dropTemporaryTopics) { 085 this.dropTemporaryTopics = dropTemporaryTopics; 086 } 087 088 public void setDropTemporaryQueues(boolean dropTemporaryQueues) { 089 this.dropTemporaryQueues = dropTemporaryQueues; 090 } 091 092 public void setDropAll(boolean dropAll) { 093 this.dropAll = dropAll; 094 } 095 096 public void setDropOnly(String dropOnly) { 097 this.dropOnly = dropOnly; 098 } 099 100 public void setReportInterval(int reportInterval) { 101 this.reportInterval = reportInterval; 102 } 103 104 public Pattern[] getDestFilter() { 105 if (getDropOnly()==null) return null; 106 ArrayList<Pattern> list = new ArrayList<Pattern>(); 107 StringTokenizer t = new StringTokenizer(getDropOnly()," "); 108 while (t.hasMoreTokens()) { 109 String s = t.nextToken(); 110 if (s!=null && s.trim().length()>0) list.add(Pattern.compile(s)); 111 } 112 if (list.size()==0) return null; 113 return list.toArray(new Pattern[0]); 114 } 115 }