| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.activemq.network.jms; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import javax.jms.Connection; |
| import javax.jms.Destination; |
| import javax.jms.JMSException; |
| import javax.naming.NamingException; |
| |
| import org.apache.activemq.ActiveMQConnectionFactory; |
| import org.apache.activemq.Service; |
| import org.apache.activemq.broker.BrokerService; |
| import org.apache.activemq.util.LRUCache; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.jndi.JndiTemplate; |
| |
| /** |
| * This bridge joins the gap between foreign JMS providers and ActiveMQ As some |
| * JMS providers are still only 1.0.1 compliant, this bridge itself aimed to be |
| * JMS 1.0.2 compliant. |
| * |
| * |
| */ |
| public abstract class JmsConnector implements Service { |
| |
| private static int nextId; |
| private static final Logger LOG = LoggerFactory.getLogger(JmsConnector.class); |
| |
| protected JndiTemplate jndiLocalTemplate; |
| protected JndiTemplate jndiOutboundTemplate; |
| protected JmsMesageConvertor inboundMessageConvertor; |
| protected JmsMesageConvertor outboundMessageConvertor; |
| protected AtomicBoolean initialized = new AtomicBoolean(false); |
| protected AtomicBoolean started = new AtomicBoolean(false); |
| protected ActiveMQConnectionFactory embeddedConnectionFactory; |
| protected int replyToDestinationCacheSize = 10000; |
| protected String outboundUsername; |
| protected String outboundPassword; |
| protected String localUsername; |
| protected String localPassword; |
| protected String outboundClientId; |
| protected String localClientId; |
| protected LRUCache replyToBridges = createLRUCache(); |
| |
| private List<DestinationBridge> inboundBridges = new CopyOnWriteArrayList<DestinationBridge>(); |
| private List<DestinationBridge> outboundBridges = new CopyOnWriteArrayList<DestinationBridge>(); |
| private String name; |
| |
| |
| private static LRUCache createLRUCache() { |
| return new LRUCache() { |
| private static final long serialVersionUID = -7446792754185879286L; |
| |
| protected boolean removeEldestEntry(Map.Entry enty) { |
| if (size() > maxCacheSize) { |
| Iterator iter = entrySet().iterator(); |
| Map.Entry lru = (Map.Entry)iter.next(); |
| remove(lru.getKey()); |
| DestinationBridge bridge = (DestinationBridge)lru.getValue(); |
| try { |
| bridge.stop(); |
| LOG.info("Expired bridge: " + bridge); |
| } catch (Exception e) { |
| LOG.warn("stopping expired bridge" + bridge + " caused an exception", e); |
| } |
| } |
| return false; |
| } |
| }; |
| } |
| |
| /** |
| */ |
| public boolean init() { |
| boolean result = initialized.compareAndSet(false, true); |
| if (result) { |
| if (jndiLocalTemplate == null) { |
| jndiLocalTemplate = new JndiTemplate(); |
| } |
| if (jndiOutboundTemplate == null) { |
| jndiOutboundTemplate = new JndiTemplate(); |
| } |
| if (inboundMessageConvertor == null) { |
| inboundMessageConvertor = new SimpleJmsMessageConvertor(); |
| } |
| if (outboundMessageConvertor == null) { |
| outboundMessageConvertor = new SimpleJmsMessageConvertor(); |
| } |
| replyToBridges.setMaxCacheSize(getReplyToDestinationCacheSize()); |
| } |
| return result; |
| } |
| |
| public void start() throws Exception { |
| init(); |
| if (started.compareAndSet(false, true)) { |
| for (int i = 0; i < inboundBridges.size(); i++) { |
| DestinationBridge bridge = inboundBridges.get(i); |
| bridge.start(); |
| } |
| for (int i = 0; i < outboundBridges.size(); i++) { |
| DestinationBridge bridge = outboundBridges.get(i); |
| bridge.start(); |
| } |
| LOG.info("JMS Connector " + getName() + " Started"); |
| } |
| } |
| |
| public void stop() throws Exception { |
| if (started.compareAndSet(true, false)) { |
| for (int i = 0; i < inboundBridges.size(); i++) { |
| DestinationBridge bridge = inboundBridges.get(i); |
| bridge.stop(); |
| } |
| for (int i = 0; i < outboundBridges.size(); i++) { |
| DestinationBridge bridge = outboundBridges.get(i); |
| bridge.stop(); |
| } |
| LOG.info("JMS Connector " + getName() + " Stopped"); |
| } |
| } |
| |
| public void clearBridges() { |
| inboundBridges.clear(); |
| outboundBridges.clear(); |
| } |
| |
| protected abstract Destination createReplyToBridge(Destination destination, Connection consumerConnection, Connection producerConnection); |
| |
| /** |
| * One way to configure the local connection - this is called by The |
| * BrokerService when the Connector is embedded |
| * |
| * @param service |
| */ |
| public void setBrokerService(BrokerService service) { |
| embeddedConnectionFactory = new ActiveMQConnectionFactory(service.getVmConnectorURI()); |
| } |
| |
| /** |
| * @return Returns the jndiTemplate. |
| */ |
| public JndiTemplate getJndiLocalTemplate() { |
| return jndiLocalTemplate; |
| } |
| |
| /** |
| * @param jndiTemplate The jndiTemplate to set. |
| */ |
| public void setJndiLocalTemplate(JndiTemplate jndiTemplate) { |
| this.jndiLocalTemplate = jndiTemplate; |
| } |
| |
| /** |
| * @return Returns the jndiOutboundTemplate. |
| */ |
| public JndiTemplate getJndiOutboundTemplate() { |
| return jndiOutboundTemplate; |
| } |
| |
| /** |
| * @param jndiOutboundTemplate The jndiOutboundTemplate to set. |
| */ |
| public void setJndiOutboundTemplate(JndiTemplate jndiOutboundTemplate) { |
| this.jndiOutboundTemplate = jndiOutboundTemplate; |
| } |
| |
| /** |
| * @return Returns the inboundMessageConvertor. |
| */ |
| public JmsMesageConvertor getInboundMessageConvertor() { |
| return inboundMessageConvertor; |
| } |
| |
| /** |
| * @param inboundMessageConvertor The inboundMessageConvertor to set. |
| */ |
| public void setInboundMessageConvertor(JmsMesageConvertor jmsMessageConvertor) { |
| this.inboundMessageConvertor = jmsMessageConvertor; |
| } |
| |
| /** |
| * @return Returns the outboundMessageConvertor. |
| */ |
| public JmsMesageConvertor getOutboundMessageConvertor() { |
| return outboundMessageConvertor; |
| } |
| |
| /** |
| * @param outboundMessageConvertor The outboundMessageConvertor to set. |
| */ |
| public void setOutboundMessageConvertor(JmsMesageConvertor outboundMessageConvertor) { |
| this.outboundMessageConvertor = outboundMessageConvertor; |
| } |
| |
| /** |
| * @return Returns the replyToDestinationCacheSize. |
| */ |
| public int getReplyToDestinationCacheSize() { |
| return replyToDestinationCacheSize; |
| } |
| |
| /** |
| * @param replyToDestinationCacheSize The replyToDestinationCacheSize to |
| * set. |
| */ |
| public void setReplyToDestinationCacheSize(int replyToDestinationCacheSize) { |
| this.replyToDestinationCacheSize = replyToDestinationCacheSize; |
| } |
| |
| /** |
| * @return Returns the localPassword. |
| */ |
| public String getLocalPassword() { |
| return localPassword; |
| } |
| |
| /** |
| * @param localPassword The localPassword to set. |
| */ |
| public void setLocalPassword(String localPassword) { |
| this.localPassword = localPassword; |
| } |
| |
| /** |
| * @return Returns the localUsername. |
| */ |
| public String getLocalUsername() { |
| return localUsername; |
| } |
| |
| /** |
| * @param localUsername The localUsername to set. |
| */ |
| public void setLocalUsername(String localUsername) { |
| this.localUsername = localUsername; |
| } |
| |
| /** |
| * @return Returns the outboundPassword. |
| */ |
| public String getOutboundPassword() { |
| return outboundPassword; |
| } |
| |
| /** |
| * @param outboundPassword The outboundPassword to set. |
| */ |
| public void setOutboundPassword(String outboundPassword) { |
| this.outboundPassword = outboundPassword; |
| } |
| |
| /** |
| * @return Returns the outboundUsername. |
| */ |
| public String getOutboundUsername() { |
| return outboundUsername; |
| } |
| |
| /** |
| * @param outboundUsername The outboundUsername to set. |
| */ |
| public void setOutboundUsername(String outboundUsername) { |
| this.outboundUsername = outboundUsername; |
| } |
| |
| /** |
| * @return the outboundClientId |
| */ |
| public String getOutboundClientId() { |
| return outboundClientId; |
| } |
| |
| /** |
| * @param outboundClientId the outboundClientId to set |
| */ |
| public void setOutboundClientId(String outboundClientId) { |
| this.outboundClientId = outboundClientId; |
| } |
| |
| /** |
| * @return the localClientId |
| */ |
| public String getLocalClientId() { |
| return localClientId; |
| } |
| |
| /** |
| * @param localClientId the localClientId to set |
| */ |
| public void setLocalClientId(String localClientId) { |
| this.localClientId = localClientId; |
| } |
| |
| |
| protected void addInboundBridge(DestinationBridge bridge) { |
| inboundBridges.add(bridge); |
| } |
| |
| protected void addOutboundBridge(DestinationBridge bridge) { |
| outboundBridges.add(bridge); |
| } |
| |
| protected void removeInboundBridge(DestinationBridge bridge) { |
| inboundBridges.remove(bridge); |
| } |
| |
| protected void removeOutboundBridge(DestinationBridge bridge) { |
| outboundBridges.remove(bridge); |
| } |
| |
| public String getName() { |
| if (name == null) { |
| name = "Connector:" + getNextId(); |
| } |
| return name; |
| } |
| |
| private static synchronized int getNextId() { |
| return nextId++; |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| public abstract void restartProducerConnection() throws NamingException, JMSException; |
| } |