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.slf4j.Logger;
026 import org.slf4j.LoggerFactory;
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 Logger log = LoggerFactory.getLogger(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 cb.setReportInterval(getReportInterval());
062 return cb;
063 }
064
065 public boolean isDropAll() {
066 return dropAll;
067 }
068
069 public boolean isDropTemporaryQueues() {
070 return dropTemporaryQueues;
071 }
072
073 public boolean isDropTemporaryTopics() {
074 return dropTemporaryTopics;
075 }
076
077 public String getDropOnly() {
078 return dropOnly;
079 }
080
081 public int getReportInterval() {
082 return reportInterval;
083 }
084
085 public void setDropTemporaryTopics(boolean dropTemporaryTopics) {
086 this.dropTemporaryTopics = dropTemporaryTopics;
087 }
088
089 public void setDropTemporaryQueues(boolean dropTemporaryQueues) {
090 this.dropTemporaryQueues = dropTemporaryQueues;
091 }
092
093 public void setDropAll(boolean dropAll) {
094 this.dropAll = dropAll;
095 }
096
097 public void setDropOnly(String dropOnly) {
098 this.dropOnly = dropOnly;
099 }
100
101 public void setReportInterval(int reportInterval) {
102 this.reportInterval = reportInterval;
103 }
104
105 public Pattern[] getDestFilter() {
106 if (getDropOnly()==null) return null;
107 ArrayList<Pattern> list = new ArrayList<Pattern>();
108 StringTokenizer t = new StringTokenizer(getDropOnly()," ");
109 while (t.hasMoreTokens()) {
110 String s = t.nextToken();
111 if (s!=null && s.trim().length()>0) list.add(Pattern.compile(s));
112 }
113 if (list.size()==0) return null;
114 return list.toArray(new Pattern[0]);
115 }
116 }