mirror of https://github.com/apache/activemq.git
Added a new/highly refactored version of the STOMP protocol implementation.
The biggest difference between this and previous implementation is that conversion between the STOMP protocol and the ActiveMQ protocol happens at a Transport Filter layer instead of doing it all at the WireFormat layer. I think this has resulted in cleaner code since there's a better seperating between marshalling/unmarshalling of the STOMP protocol and converting the stomp protocol to the activemq protocol. git-svn-id: https://svn.apache.org/repos/asf/incubator/activemq/trunk@418550 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Hiram R. Chirino
parent
6d550302a2
commit
dc98d967b5
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@ -0,0 +1,627 @@
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/**
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*
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* Copyright 2005-2006 The Apache Software Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.activemq.transport.stomp2;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.PrintWriter;
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import java.net.ProtocolException;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import javax.jms.Destination;
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import javax.jms.JMSException;
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import org.apache.activeio.util.ByteArrayOutputStream;
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import org.apache.activemq.command.ActiveMQBytesMessage;
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import org.apache.activemq.command.ActiveMQDestination;
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import org.apache.activemq.command.ActiveMQMessage;
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import org.apache.activemq.command.ActiveMQTextMessage;
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import org.apache.activemq.command.Command;
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import org.apache.activemq.command.ConnectionId;
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import org.apache.activemq.command.ConnectionInfo;
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import org.apache.activemq.command.ConsumerId;
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import org.apache.activemq.command.ConsumerInfo;
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import org.apache.activemq.command.LocalTransactionId;
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import org.apache.activemq.command.MessageAck;
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import org.apache.activemq.command.MessageDispatch;
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import org.apache.activemq.command.MessageId;
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import org.apache.activemq.command.ProducerId;
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import org.apache.activemq.command.ProducerInfo;
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import org.apache.activemq.command.Response;
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import org.apache.activemq.command.SessionId;
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import org.apache.activemq.command.SessionInfo;
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import org.apache.activemq.command.ShutdownInfo;
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import org.apache.activemq.command.TransactionId;
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import org.apache.activemq.command.TransactionInfo;
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import org.apache.activemq.transport.stomp.Stomp;
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import org.apache.activemq.util.IdGenerator;
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import org.apache.activemq.util.IntrospectionSupport;
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import org.apache.activemq.util.LongSequenceGenerator;
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import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap;
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import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicBoolean;
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/**
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*
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* @author <a href="http://hiramchirino.com">chirino</a>
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*/
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public class ProtocolConverter {
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private static final IdGenerator connectionIdGenerator = new IdGenerator();
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private final ConnectionId connectionId = new ConnectionId(connectionIdGenerator.generateId());
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private final SessionId sessionId = new SessionId(connectionId, -1);
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private final ProducerId producerId = new ProducerId(sessionId, 1);
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private final LongSequenceGenerator consumerIdGenerator = new LongSequenceGenerator();
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private final LongSequenceGenerator messageIdGenerator = new LongSequenceGenerator();
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private final LongSequenceGenerator transactionIdGenerator = new LongSequenceGenerator();
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private final ConcurrentHashMap resposeHandlers = new ConcurrentHashMap();
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private final ConcurrentHashMap subscriptionsByConsumerId = new ConcurrentHashMap();
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private final Map transactions = new ConcurrentHashMap();
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private StompTransportFilter transportFilter;
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private final Object commnadIdMutex = new Object();
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private int lastCommandId;
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private final AtomicBoolean connected = new AtomicBoolean(false);
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protected int generateCommandId() {
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synchronized(commnadIdMutex){
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return lastCommandId++;
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}
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}
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protected ResponseHandler createResponseHandler(StompCommand command){
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final String receiptId = (String) command.getHeaders().get(Stomp.Headers.RECEIPT_REQUESTED);
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// A response may not be needed.
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if( receiptId != null ) {
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return new ResponseHandler() {
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public void onResponse(ProtocolConverter converter, Response response) throws IOException {
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StompCommand sc = new StompCommand();
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sc.setHeaders(new HashMap(5));
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sc.getHeaders().put(Stomp.Headers.Response.RECEIPT_ID, receiptId);
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transportFilter.sendToStomp(sc);
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}
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};
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}
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return null;
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}
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protected void sendToActiveMQ(Command command, ResponseHandler handler) {
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command.setCommandId(generateCommandId());
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if(handler!=null) {
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command.setResponseRequired(true);
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resposeHandlers.put(new Integer(command.getCommandId()), handler);
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}
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transportFilter.sendToActiveMQ(command);
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}
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protected void sendToStomp(StompCommand command) throws IOException {
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transportFilter.sendToStomp(command);
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}
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/**
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* Convert a stomp command
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* @param command
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*/
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public void onStompCommad( StompCommand command ) throws IOException, JMSException {
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try {
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String action = command.getAction();
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if (action.startsWith(Stomp.Commands.SEND))
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onStompSend(command);
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else if (action.startsWith(Stomp.Commands.ACK))
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onStompAck(command);
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else if (action.startsWith(Stomp.Commands.BEGIN))
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onStompBegin(command);
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else if (action.startsWith(Stomp.Commands.COMMIT))
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onStompCommit(command);
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else if (action.startsWith(Stomp.Commands.ABORT))
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onStompAbort(command);
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else if (action.startsWith(Stomp.Commands.SUBSCRIBE))
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onStompSubscribe(command);
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else if (action.startsWith(Stomp.Commands.UNSUBSCRIBE))
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onStompUnsubscribe(command);
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else if (action.startsWith(Stomp.Commands.CONNECT))
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onStompConnect(command);
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else if (action.startsWith(Stomp.Commands.DISCONNECT))
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onStompDisconnect(command);
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else
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throw new ProtocolException("Unknown STOMP action: "+action);
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} catch (ProtocolException e) {
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// Let the stomp client know about any protocol errors.
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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PrintWriter stream = new PrintWriter(new OutputStreamWriter(baos,"UTF-8"));
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e.printStackTrace(stream);
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stream.close();
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HashMap headers = new HashMap();
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headers.put(Stomp.Headers.Error.MESSAGE, e.getMessage());
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final String receiptId = (String) command.getHeaders().get(Stomp.Headers.RECEIPT_REQUESTED);
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if( receiptId != null ) {
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headers.put(Stomp.Headers.Response.RECEIPT_ID, receiptId);
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}
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StompCommand errorMessage = new StompCommand(Stomp.Responses.ERROR,headers,baos.toByteArray());
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sendToStomp(errorMessage);
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}
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}
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protected void onStompSend(StompCommand command) throws IOException, JMSException {
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checkConnected();
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Map headers = command.getHeaders();
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String stompTx = (String) headers.get(Stomp.Headers.TRANSACTION);
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ActiveMQMessage message = convertMessage(command);
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message.setProducerId(producerId);
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MessageId id = new MessageId(producerId, messageIdGenerator.getNextSequenceId());
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message.setMessageId(id);
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message.setJMSTimestamp(System.currentTimeMillis());
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if (stompTx!=null) {
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TransactionId activemqTx = (TransactionId) transactions.get(stompTx);
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if (activemqTx == null)
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throw new ProtocolException("Invalid transaction id: "+stompTx);
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message.setTransactionId(activemqTx);
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}
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message.onSend();
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sendToActiveMQ(message, createResponseHandler(command));
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}
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protected void onStompAck(StompCommand command) throws ProtocolException {
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checkConnected();
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// TODO: acking with just a message id is very bogus
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// since the same message id could have been sent to 2 different subscriptions
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// on the same stomp connection. For example, when 2 subs are created on the same topic.
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Map headers = command.getHeaders();
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String messageId = (String) headers.get(Stomp.Headers.Ack.MESSAGE_ID);
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if (messageId == null)
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throw new ProtocolException("ACK received without a message-id to acknowledge!");
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TransactionId activemqTx=null;
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String stompTx = (String) headers.get(Stomp.Headers.TRANSACTION);
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if (stompTx!=null) {
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activemqTx = (TransactionId) transactions.get(stompTx);
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if (activemqTx == null)
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throw new ProtocolException("Invalid transaction id: "+stompTx);
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}
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boolean acked=false;
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for (Iterator iter = subscriptionsByConsumerId.values().iterator(); iter.hasNext();) {
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StompSubscription sub = (StompSubscription) iter.next();
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MessageAck ack = sub.onStompMessageAck(messageId);
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if( ack!=null ) {
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ack.setTransactionId(activemqTx);
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sendToActiveMQ(ack,createResponseHandler(command));
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acked=true;
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break;
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}
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}
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if( !acked )
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throw new ProtocolException("Unexpected ACK received for message-id [" + messageId + "]");
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}
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protected void onStompBegin(StompCommand command) throws ProtocolException {
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checkConnected();
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Map headers = command.getHeaders();
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String stompTx = (String)headers.get(Stomp.Headers.TRANSACTION);
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if (!headers.containsKey(Stomp.Headers.TRANSACTION)) {
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throw new ProtocolException("Must specify the transaction you are beginning");
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}
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if( transactions.get(stompTx)!=null ) {
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throw new ProtocolException("The transaction was allready started: "+stompTx);
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}
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LocalTransactionId activemqTx = new LocalTransactionId(connectionId, transactionIdGenerator.getNextSequenceId());
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transactions.put(stompTx, activemqTx);
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TransactionInfo tx = new TransactionInfo();
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tx.setConnectionId(connectionId);
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tx.setTransactionId(activemqTx);
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tx.setType(TransactionInfo.BEGIN);
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sendToActiveMQ(tx, createResponseHandler(command));
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}
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protected void onStompCommit(StompCommand command) throws ProtocolException {
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checkConnected();
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Map headers = command.getHeaders();
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String stompTx = (String) headers.get(Stomp.Headers.TRANSACTION);
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if (stompTx==null) {
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throw new ProtocolException("Must specify the transaction you are committing");
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}
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TransactionId activemqTx=null;
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if (stompTx!=null) {
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activemqTx = (TransactionId) transactions.remove(stompTx);
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if (activemqTx == null)
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throw new ProtocolException("Invalid transaction id: "+stompTx);
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}
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TransactionInfo tx = new TransactionInfo();
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tx.setConnectionId(connectionId);
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tx.setTransactionId(activemqTx);
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tx.setType(TransactionInfo.COMMIT_ONE_PHASE);
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sendToActiveMQ(tx, createResponseHandler(command));
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}
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protected void onStompAbort(StompCommand command) throws ProtocolException {
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checkConnected();
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Map headers = command.getHeaders();
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String stompTx = (String) headers.get(Stomp.Headers.TRANSACTION);
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if (stompTx==null) {
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throw new ProtocolException("Must specify the transaction you are committing");
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}
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TransactionId activemqTx=null;
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if (stompTx!=null) {
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activemqTx = (TransactionId) transactions.remove(stompTx);
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if (activemqTx == null)
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throw new ProtocolException("Invalid transaction id: "+stompTx);
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}
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TransactionInfo tx = new TransactionInfo();
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tx.setConnectionId(connectionId);
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tx.setTransactionId(activemqTx);
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tx.setType(TransactionInfo.ROLLBACK);
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sendToActiveMQ(tx, createResponseHandler(command));
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}
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protected void onStompSubscribe(StompCommand command) throws ProtocolException {
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checkConnected();
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Map headers = command.getHeaders();
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String subscriptionId = (String)headers.get(Stomp.Headers.Subscribe.ID);
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String destination = (String)headers.get(Stomp.Headers.Subscribe.DESTINATION);
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ActiveMQDestination actual_dest = convertDestination(destination);
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ConsumerId id = new ConsumerId(sessionId, consumerIdGenerator.getNextSequenceId());
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ConsumerInfo consumerInfo = new ConsumerInfo(id);
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consumerInfo.setPrefetchSize(1000);
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consumerInfo.setDispatchAsync(true);
|
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String selector = (String) headers.remove(Stomp.Headers.Subscribe.SELECTOR);
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consumerInfo.setSelector(selector);
|
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IntrospectionSupport.setProperties(consumerInfo, headers, "activemq.");
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consumerInfo.setDestination(convertDestination(destination));
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StompSubscription stompSubscription = new StompSubscription(this, subscriptionId, consumerInfo);
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stompSubscription.setDestination(actual_dest);
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String ackMode = (String)headers.get(Stomp.Headers.Subscribe.ACK_MODE);
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if (Stomp.Headers.Subscribe.AckModeValues.CLIENT.equals(ackMode)) {
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stompSubscription.setAckMode(StompSubscription.CLIENT_ACK);
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} else {
|
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|
stompSubscription.setAckMode(StompSubscription.AUTO_ACK);
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|
}
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subscriptionsByConsumerId.put(id, stompSubscription);
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sendToActiveMQ(consumerInfo, createResponseHandler(command));
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}
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protected void onStompUnsubscribe(StompCommand command) throws ProtocolException {
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checkConnected();
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Map headers = command.getHeaders();
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ActiveMQDestination destination=null;
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Object o = headers.get(Stomp.Headers.Unsubscribe.DESTINATION);
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if( o!=null )
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destination =convertDestination((String) o);
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String subscriptionId = (String)headers.get(Stomp.Headers.Unsubscribe.ID);
|
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|
|
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|
if (subscriptionId==null && destination==null) {
|
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throw new ProtocolException("Must specify the subscriptionId or the destination you are unsubscribing from");
|
||||||
|
}
|
||||||
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|
||||||
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// TODO: Unsubscribing using a destination is a bit wierd if multiple subscriptions
|
||||||
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// are created with the same destination. Perhaps this should be removed.
|
||||||
|
//
|
||||||
|
for (Iterator iter = subscriptionsByConsumerId.values().iterator(); iter.hasNext();) {
|
||||||
|
StompSubscription sub = (StompSubscription) iter.next();
|
||||||
|
if (
|
||||||
|
(subscriptionId!=null && subscriptionId.equals(sub.getSubscriptionId()) ) ||
|
||||||
|
(destination!=null && destination.equals(sub.getDestination()) )
|
||||||
|
) {
|
||||||
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sendToActiveMQ(sub.getConsumerInfo().createRemoveCommand(), createResponseHandler(command));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
throw new ProtocolException("No subscription matched.");
|
||||||
|
}
|
||||||
|
|
||||||
|
protected void onStompConnect(StompCommand command) throws ProtocolException {
|
||||||
|
|
||||||
|
if(connected.get()) {
|
||||||
|
throw new ProtocolException("Allready connected.");
|
||||||
|
}
|
||||||
|
|
||||||
|
final Map headers = command.getHeaders();
|
||||||
|
|
||||||
|
// allow anyone to login for now
|
||||||
|
String login = (String)headers.get(Stomp.Headers.Connect.LOGIN);
|
||||||
|
String passcode = (String)headers.get(Stomp.Headers.Connect.PASSCODE);
|
||||||
|
String clientId = (String)headers.get(Stomp.Headers.Connect.CLIENT_ID);
|
||||||
|
|
||||||
|
final ConnectionInfo connectionInfo = new ConnectionInfo();
|
||||||
|
|
||||||
|
IntrospectionSupport.setProperties(connectionInfo, headers, "activemq.");
|
||||||
|
|
||||||
|
connectionInfo.setConnectionId(connectionId);
|
||||||
|
if( clientId!=null )
|
||||||
|
connectionInfo.setClientId(clientId);
|
||||||
|
else
|
||||||
|
connectionInfo.setClientId(""+connectionInfo.getConnectionId().toString());
|
||||||
|
|
||||||
|
connectionInfo.setResponseRequired(true);
|
||||||
|
connectionInfo.setUserName(login);
|
||||||
|
connectionInfo.setPassword(passcode);
|
||||||
|
|
||||||
|
sendToActiveMQ(connectionInfo, new ResponseHandler(){
|
||||||
|
public void onResponse(ProtocolConverter converter, Response response) throws IOException {
|
||||||
|
|
||||||
|
final SessionInfo sessionInfo = new SessionInfo(sessionId);
|
||||||
|
sendToActiveMQ(sessionInfo,null);
|
||||||
|
|
||||||
|
|
||||||
|
final ProducerInfo producerInfo = new ProducerInfo(producerId);
|
||||||
|
sendToActiveMQ(producerInfo,new ResponseHandler(){
|
||||||
|
public void onResponse(ProtocolConverter converter, Response response) throws IOException {
|
||||||
|
|
||||||
|
connected.set(true);
|
||||||
|
HashMap responseHeaders = new HashMap();
|
||||||
|
|
||||||
|
responseHeaders.put(Stomp.Headers.Connected.SESSION, connectionInfo.getClientId());
|
||||||
|
String requestId = (String) headers.get(Stomp.Headers.Connect.REQUEST_ID);
|
||||||
|
if( requestId !=null ){
|
||||||
|
responseHeaders.put(Stomp.Headers.Connected.RESPONSE_ID, requestId);
|
||||||
|
}
|
||||||
|
|
||||||
|
StompCommand sc = new StompCommand();
|
||||||
|
sc.setAction(Stomp.Responses.CONNECTED);
|
||||||
|
sc.setHeaders(responseHeaders);
|
||||||
|
sendToStomp(sc);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
protected void onStompDisconnect(StompCommand command) throws ProtocolException {
|
||||||
|
checkConnected();
|
||||||
|
sendToActiveMQ(new ShutdownInfo(), createResponseHandler(command));
|
||||||
|
connected.set(false);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
protected void checkConnected() throws ProtocolException {
|
||||||
|
if(!connected.get()) {
|
||||||
|
throw new ProtocolException("Not connected.");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Convert a ActiveMQ command
|
||||||
|
* @param command
|
||||||
|
* @throws IOException
|
||||||
|
*/
|
||||||
|
public void onActiveMQCommad( Command command ) throws IOException, JMSException {
|
||||||
|
|
||||||
|
if ( command.isResponse() ) {
|
||||||
|
|
||||||
|
Response response = (Response) command;
|
||||||
|
ResponseHandler rh = (ResponseHandler) resposeHandlers.remove(new Integer(response.getCorrelationId()));
|
||||||
|
if( rh !=null ) {
|
||||||
|
rh.onResponse(this, response);
|
||||||
|
}
|
||||||
|
|
||||||
|
} else if( command.isMessageDispatch() ) {
|
||||||
|
|
||||||
|
MessageDispatch md = (MessageDispatch)command;
|
||||||
|
StompSubscription sub = (StompSubscription) subscriptionsByConsumerId.get(md.getConsumerId());
|
||||||
|
if (sub != null)
|
||||||
|
sub.onMessageDispatch(md);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
public ActiveMQMessage convertMessage(StompCommand command) throws IOException, JMSException {
|
||||||
|
Map headers = command.getHeaders();
|
||||||
|
|
||||||
|
// now the body
|
||||||
|
ActiveMQMessage msg;
|
||||||
|
if (headers.containsKey(Stomp.Headers.CONTENT_LENGTH)) {
|
||||||
|
headers.remove(Stomp.Headers.CONTENT_LENGTH);
|
||||||
|
ActiveMQBytesMessage bm = new ActiveMQBytesMessage();
|
||||||
|
bm.writeBytes(command.getContent());
|
||||||
|
msg = bm;
|
||||||
|
} else {
|
||||||
|
ActiveMQTextMessage text = new ActiveMQTextMessage();
|
||||||
|
try {
|
||||||
|
text.setText(new String(command.getContent(), "UTF-8"));
|
||||||
|
} catch (Throwable e) {
|
||||||
|
throw (ProtocolException)new ProtocolException("Text could not bet set: "+e).initCause(e);
|
||||||
|
}
|
||||||
|
msg = text;
|
||||||
|
}
|
||||||
|
|
||||||
|
String destination = (String) headers.remove(Stomp.Headers.Send.DESTINATION);
|
||||||
|
msg.setDestination(convertDestination(destination));
|
||||||
|
|
||||||
|
// the standard JMS headers
|
||||||
|
msg.setJMSCorrelationID((String) headers.remove(Stomp.Headers.Send.CORRELATION_ID));
|
||||||
|
|
||||||
|
Object o = headers.remove(Stomp.Headers.Send.EXPIRATION_TIME);
|
||||||
|
if (o != null) {
|
||||||
|
msg.setJMSExpiration(Long.parseLong((String) o));
|
||||||
|
}
|
||||||
|
|
||||||
|
o = headers.remove(Stomp.Headers.Send.PRIORITY);
|
||||||
|
if (o != null) {
|
||||||
|
msg.setJMSPriority(Integer.parseInt((String)o));
|
||||||
|
}
|
||||||
|
|
||||||
|
o = headers.remove(Stomp.Headers.Send.TYPE);
|
||||||
|
if (o != null) {
|
||||||
|
msg.setJMSType((String) o);
|
||||||
|
}
|
||||||
|
|
||||||
|
o = headers.remove(Stomp.Headers.Send.REPLY_TO);
|
||||||
|
if( o!=null ) {
|
||||||
|
msg.setJMSReplyTo(convertDestination((String)o));
|
||||||
|
}
|
||||||
|
|
||||||
|
o = headers.remove(Stomp.Headers.Send.PERSISTENT);
|
||||||
|
if (o != null) {
|
||||||
|
msg.setPersistent("true".equals(o));
|
||||||
|
}
|
||||||
|
|
||||||
|
// now the general headers
|
||||||
|
msg.setProperties(headers);
|
||||||
|
|
||||||
|
return msg;
|
||||||
|
}
|
||||||
|
|
||||||
|
public StompCommand convertMessage(ActiveMQMessage message) throws IOException, JMSException {
|
||||||
|
|
||||||
|
StompCommand command = new StompCommand();
|
||||||
|
command.setAction(Stomp.Responses.MESSAGE);
|
||||||
|
|
||||||
|
HashMap headers = new HashMap();
|
||||||
|
command.setHeaders(headers);
|
||||||
|
|
||||||
|
headers.put(Stomp.Headers.Message.DESTINATION, convertDestination(message.getDestination()));
|
||||||
|
headers.put(Stomp.Headers.Message.MESSAGE_ID, message.getJMSMessageID());
|
||||||
|
headers.put(Stomp.Headers.Message.CORRELATION_ID, message.getJMSCorrelationID());
|
||||||
|
headers.put(Stomp.Headers.Message.EXPIRATION_TIME, ""+message.getJMSExpiration());
|
||||||
|
if (message.getJMSRedelivered()) {
|
||||||
|
headers.put(Stomp.Headers.Message.REDELIVERED, "true");
|
||||||
|
}
|
||||||
|
headers.put(Stomp.Headers.Message.PRORITY, ""+message.getJMSPriority());
|
||||||
|
headers.put(Stomp.Headers.Message.REPLY_TO, convertDestination(message.getJMSReplyTo()));
|
||||||
|
headers.put(Stomp.Headers.Message.TIMESTAMP, ""+message.getJMSTimestamp());
|
||||||
|
headers.put(Stomp.Headers.Message.TYPE, message.getJMSType());
|
||||||
|
|
||||||
|
// now lets add all the message headers
|
||||||
|
Map properties = message.getProperties();
|
||||||
|
if (properties != null) {
|
||||||
|
headers.putAll(properties);
|
||||||
|
}
|
||||||
|
|
||||||
|
if( message.getDataStructureType() == ActiveMQTextMessage.DATA_STRUCTURE_TYPE ) {
|
||||||
|
|
||||||
|
ActiveMQTextMessage msg = (ActiveMQTextMessage)message.copy();
|
||||||
|
command.setContent(msg.getText().getBytes("UTF-8"));
|
||||||
|
|
||||||
|
} else if( message.getDataStructureType() == ActiveMQBytesMessage.DATA_STRUCTURE_TYPE ) {
|
||||||
|
|
||||||
|
ActiveMQBytesMessage msg = (ActiveMQBytesMessage)message.copy();
|
||||||
|
byte[] data = new byte[(int)msg.getBodyLength()];
|
||||||
|
msg.readBytes(data);
|
||||||
|
|
||||||
|
headers.put(Stomp.Headers.CONTENT_LENGTH, ""+data.length);
|
||||||
|
command.setContent(data);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
return command;
|
||||||
|
}
|
||||||
|
|
||||||
|
protected ActiveMQDestination convertDestination(String name) throws ProtocolException {
|
||||||
|
if (name == null) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
else if (name.startsWith("/queue/")) {
|
||||||
|
String q_name = name.substring("/queue/".length(), name.length());
|
||||||
|
return ActiveMQDestination.createDestination(q_name, ActiveMQDestination.QUEUE_TYPE);
|
||||||
|
}
|
||||||
|
else if (name.startsWith("/topic/")) {
|
||||||
|
String t_name = name.substring("/topic/".length(), name.length());
|
||||||
|
return ActiveMQDestination.createDestination(t_name, ActiveMQDestination.TOPIC_TYPE);
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
throw new ProtocolException("Illegal destination name: [" + name + "] -- ActiveMQ STOMP destinations " + "must begine with /queue/ or /topic/");
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
protected String convertDestination(Destination d) {
|
||||||
|
if (d == null) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
ActiveMQDestination amq_d = (ActiveMQDestination) d;
|
||||||
|
String p_name = amq_d.getPhysicalName();
|
||||||
|
|
||||||
|
StringBuffer buffer = new StringBuffer();
|
||||||
|
if (amq_d.isQueue()) {
|
||||||
|
buffer.append("/queue/");
|
||||||
|
}
|
||||||
|
if (amq_d.isTopic()) {
|
||||||
|
buffer.append("/topic/");
|
||||||
|
}
|
||||||
|
buffer.append(p_name);
|
||||||
|
|
||||||
|
return buffer.toString();
|
||||||
|
}
|
||||||
|
|
||||||
|
public StompTransportFilter getTransportFilter() {
|
||||||
|
return transportFilter;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setTransportFilter(StompTransportFilter transportFilter) {
|
||||||
|
this.transportFilter = transportFilter;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void onStompExcepton(IOException error) {
|
||||||
|
// TODO Auto-generated method stub
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,30 @@
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Copyright 2005-2006 The Apache Software Foundation
|
||||||
|
*
|
||||||
|
* Licensed 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.transport.stomp2;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
|
||||||
|
import org.apache.activemq.command.Response;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Interface used by the ProtocolConverter for callbacks.
|
||||||
|
*
|
||||||
|
* @author <a href="http://hiramchirino.com">chirino</a>
|
||||||
|
*/
|
||||||
|
interface ResponseHandler {
|
||||||
|
void onResponse(ProtocolConverter converter, Response response) throws IOException;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,149 @@
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Copyright 2005-2006 The Apache Software Foundation
|
||||||
|
*
|
||||||
|
* Licensed 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.transport.stomp2;
|
||||||
|
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import org.apache.activemq.command.Command;
|
||||||
|
import org.apache.activemq.command.Endpoint;
|
||||||
|
import org.apache.activemq.command.Response;
|
||||||
|
import org.apache.activemq.state.CommandVisitor;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Represents all the data in a STOMP frame.
|
||||||
|
*
|
||||||
|
* @author <a href="http://hiramchirino.com">chirino</a>
|
||||||
|
*/
|
||||||
|
public class StompCommand implements Command {
|
||||||
|
|
||||||
|
private static final byte[] NO_DATA = new byte[]{};
|
||||||
|
|
||||||
|
private String action;
|
||||||
|
private Map headers = Collections.EMPTY_MAP;
|
||||||
|
private byte[] content = NO_DATA;
|
||||||
|
|
||||||
|
public StompCommand(String command, HashMap headers, byte[] data) {
|
||||||
|
this.action = command;
|
||||||
|
this.headers = headers;
|
||||||
|
this.content = data;
|
||||||
|
}
|
||||||
|
|
||||||
|
public StompCommand() {
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getAction() {
|
||||||
|
return action;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setAction(String command) {
|
||||||
|
this.action = command;
|
||||||
|
}
|
||||||
|
|
||||||
|
public byte[] getContent() {
|
||||||
|
return content;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setContent(byte[] data) {
|
||||||
|
this.content = data;
|
||||||
|
}
|
||||||
|
|
||||||
|
public Map getHeaders() {
|
||||||
|
return headers;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setHeaders(Map headers) {
|
||||||
|
this.headers = headers;
|
||||||
|
}
|
||||||
|
|
||||||
|
//
|
||||||
|
// Methods in the Command interface
|
||||||
|
//
|
||||||
|
public int getCommandId() {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
public Endpoint getFrom() {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
public Endpoint getTo() {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isBrokerInfo() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isMessage() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isMessageAck() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isMessageDispatch() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isMessageDispatchNotification() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isResponse() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isResponseRequired() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isShutdownInfo() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isWireFormatInfo() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setCommandId(int value) {
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setFrom(Endpoint from) {
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setResponseRequired(boolean responseRequired) {
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setTo(Endpoint to) {
|
||||||
|
}
|
||||||
|
|
||||||
|
public Response visit(CommandVisitor visitor) throws Exception {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
public byte getDataStructureType() {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isMarshallAware() {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,136 @@
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Copyright 2005-2006 The Apache Software Foundation
|
||||||
|
*
|
||||||
|
* Licensed 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.transport.stomp2;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.util.Iterator;
|
||||||
|
import java.util.LinkedHashMap;
|
||||||
|
|
||||||
|
import javax.jms.JMSException;
|
||||||
|
|
||||||
|
import org.apache.activemq.command.ActiveMQDestination;
|
||||||
|
import org.apache.activemq.command.ActiveMQMessage;
|
||||||
|
import org.apache.activemq.command.ConsumerInfo;
|
||||||
|
import org.apache.activemq.command.MessageAck;
|
||||||
|
import org.apache.activemq.command.MessageDispatch;
|
||||||
|
import org.apache.activemq.command.MessageId;
|
||||||
|
import org.apache.activemq.transport.stomp.Stomp;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Keeps track of the STOMP susbscription so that acking is correctly done.
|
||||||
|
*
|
||||||
|
* @author <a href="http://hiramchirino.com">chirino</a>
|
||||||
|
*/
|
||||||
|
public class StompSubscription {
|
||||||
|
|
||||||
|
public static final String AUTO_ACK = Stomp.Headers.Subscribe.AckModeValues.AUTO;
|
||||||
|
public static final String CLIENT_ACK = Stomp.Headers.Subscribe.AckModeValues.CLIENT;
|
||||||
|
|
||||||
|
private final ProtocolConverter protocolConverter;
|
||||||
|
private final String subscriptionId;
|
||||||
|
private final ConsumerInfo consumerInfo;
|
||||||
|
|
||||||
|
private final LinkedHashMap dispatchedMessage = new LinkedHashMap();
|
||||||
|
|
||||||
|
private String ackMode = AUTO_ACK;
|
||||||
|
private ActiveMQDestination destination;
|
||||||
|
|
||||||
|
|
||||||
|
public StompSubscription(ProtocolConverter stompTransport, String subscriptionId, ConsumerInfo consumerInfo) {
|
||||||
|
this.protocolConverter = stompTransport;
|
||||||
|
this.subscriptionId = subscriptionId;
|
||||||
|
this.consumerInfo = consumerInfo;
|
||||||
|
}
|
||||||
|
|
||||||
|
void onMessageDispatch(MessageDispatch md) throws IOException, JMSException {
|
||||||
|
|
||||||
|
ActiveMQMessage message = (ActiveMQMessage) md.getMessage();
|
||||||
|
|
||||||
|
if (ackMode == CLIENT_ACK) {
|
||||||
|
synchronized (this) {
|
||||||
|
dispatchedMessage.put(message.getJMSMessageID(), message.getMessageId());
|
||||||
|
}
|
||||||
|
} else if (ackMode == AUTO_ACK) {
|
||||||
|
MessageAck ack = new MessageAck(md, MessageAck.STANDARD_ACK_TYPE, 1);
|
||||||
|
protocolConverter.getTransportFilter().sendToActiveMQ(ack);
|
||||||
|
}
|
||||||
|
|
||||||
|
StompCommand command = protocolConverter.convertMessage(message);
|
||||||
|
|
||||||
|
command.setAction(Stomp.Responses.MESSAGE);
|
||||||
|
if (subscriptionId!=null) {
|
||||||
|
command.getHeaders().put(Stomp.Headers.Message.SUBSCRIPTION, subscriptionId);
|
||||||
|
}
|
||||||
|
|
||||||
|
protocolConverter.getTransportFilter().sendToStomp(command);
|
||||||
|
}
|
||||||
|
|
||||||
|
synchronized MessageAck onStompMessageAck(String messageId) {
|
||||||
|
|
||||||
|
if( !dispatchedMessage.containsKey(messageId) ) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
MessageAck ack = new MessageAck();
|
||||||
|
ack.setDestination(consumerInfo.getDestination());
|
||||||
|
ack.setAckType(MessageAck.STANDARD_ACK_TYPE);
|
||||||
|
ack.setConsumerId(consumerInfo.getConsumerId());
|
||||||
|
|
||||||
|
int count=0;
|
||||||
|
for (Iterator iter = dispatchedMessage.keySet().iterator(); iter.hasNext();) {
|
||||||
|
|
||||||
|
String id = (String) iter.next();
|
||||||
|
if( ack.getFirstMessageId()==null )
|
||||||
|
ack.setFirstMessageId((MessageId) dispatchedMessage.get(id));
|
||||||
|
|
||||||
|
iter.remove();
|
||||||
|
count++;
|
||||||
|
if( id.equals(messageId) ) {
|
||||||
|
ack.setLastMessageId((MessageId) dispatchedMessage.get(id));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ack.setMessageCount(count);
|
||||||
|
return ack;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getAckMode() {
|
||||||
|
return ackMode;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setAckMode(String ackMode) {
|
||||||
|
this.ackMode = ackMode;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getSubscriptionId() {
|
||||||
|
return subscriptionId;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setDestination(ActiveMQDestination destination) {
|
||||||
|
this.destination = destination;
|
||||||
|
}
|
||||||
|
|
||||||
|
public ActiveMQDestination getDestination() {
|
||||||
|
return destination;
|
||||||
|
}
|
||||||
|
|
||||||
|
public ConsumerInfo getConsumerInfo() {
|
||||||
|
return consumerInfo;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,40 @@
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Copyright 2005-2006 The Apache Software Foundation
|
||||||
|
*
|
||||||
|
* Licensed 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.transport.stomp2;
|
||||||
|
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import org.apache.activeio.command.WireFormat;
|
||||||
|
import org.apache.activemq.transport.Transport;
|
||||||
|
import org.apache.activemq.transport.tcp.TcpTransportFactory;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* A <a href="http://stomp.codehaus.org/">STOMP</a> transport factory
|
||||||
|
*
|
||||||
|
* @version $Revision: 1.1.1.1 $
|
||||||
|
*/
|
||||||
|
public class StompTransportFactory extends TcpTransportFactory {
|
||||||
|
|
||||||
|
protected String getDefaultWireFormatType() {
|
||||||
|
return "stomp";
|
||||||
|
}
|
||||||
|
|
||||||
|
public Transport compositeConfigure(Transport transport, WireFormat format, Map options) {
|
||||||
|
transport = new StompTransportFilter(transport);
|
||||||
|
return super.compositeConfigure(transport, format, options);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,95 @@
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Copyright 2005-2006 The Apache Software Foundation
|
||||||
|
*
|
||||||
|
* Licensed 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.transport.stomp2;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
|
||||||
|
import javax.jms.JMSException;
|
||||||
|
|
||||||
|
import org.apache.activemq.command.Command;
|
||||||
|
import org.apache.activemq.transport.Transport;
|
||||||
|
import org.apache.activemq.transport.TransportFilter;
|
||||||
|
import org.apache.activemq.util.IOExceptionSupport;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* The StompTransportFilter normally sits on top of a TcpTransport
|
||||||
|
* that has been configured with the StompWireFormat and is used to
|
||||||
|
* convert STOMP commands to ActiveMQ commands.
|
||||||
|
*
|
||||||
|
* All of the coversion work is done by delegating to the ProtocolConverter.
|
||||||
|
*
|
||||||
|
* @author <a href="http://hiramchirino.com">chirino</a>
|
||||||
|
*/
|
||||||
|
public class StompTransportFilter extends TransportFilter {
|
||||||
|
|
||||||
|
ProtocolConverter protocolConverter = new ProtocolConverter();
|
||||||
|
|
||||||
|
private final Object sendToActiveMQMutex = new Object();
|
||||||
|
private final Object sendToStompMutex = new Object();
|
||||||
|
|
||||||
|
public StompTransportFilter(Transport next) {
|
||||||
|
super(next);
|
||||||
|
protocolConverter.setTransportFilter(this);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void start() throws Exception {
|
||||||
|
super.start();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void stop() throws Exception {
|
||||||
|
super.stop();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void oneway(Command command) throws IOException {
|
||||||
|
try {
|
||||||
|
protocolConverter.onActiveMQCommad(command);
|
||||||
|
} catch (JMSException e) {
|
||||||
|
throw IOExceptionSupport.create(e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public void onCommand(Command command) {
|
||||||
|
try {
|
||||||
|
protocolConverter.onStompCommad((StompCommand) command);
|
||||||
|
} catch (IOException e) {
|
||||||
|
onException(e);
|
||||||
|
} catch (JMSException e) {
|
||||||
|
onException(IOExceptionSupport.create(e));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public void onException(IOException error) {
|
||||||
|
protocolConverter.onStompExcepton(error);
|
||||||
|
transportListener.onException(error);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
public void sendToActiveMQ(Command command) {
|
||||||
|
synchronized(sendToActiveMQMutex) {
|
||||||
|
transportListener.onCommand(command);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public void sendToStomp(StompCommand command) throws IOException {
|
||||||
|
synchronized(sendToStompMutex) {
|
||||||
|
next.oneway(command);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,200 @@
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Copyright 2005-2006 The Apache Software Foundation
|
||||||
|
*
|
||||||
|
* Licensed 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.transport.stomp2;
|
||||||
|
|
||||||
|
import java.io.DataInputStream;
|
||||||
|
import java.io.DataOutputStream;
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.net.ProtocolException;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Iterator;
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import org.apache.activeio.adapter.PacketInputStream;
|
||||||
|
import org.apache.activeio.command.WireFormat;
|
||||||
|
import org.apache.activeio.packet.ByteArrayPacket;
|
||||||
|
import org.apache.activeio.packet.ByteSequence;
|
||||||
|
import org.apache.activeio.packet.Packet;
|
||||||
|
import org.apache.activeio.util.ByteArrayOutputStream;
|
||||||
|
import org.apache.activemq.transport.stomp.Stomp;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Implements marshalling and unmarsalling the <a href="http://stomp.codehaus.org/">Stomp</a> protocol.
|
||||||
|
*/
|
||||||
|
public class StompWireFormat implements WireFormat {
|
||||||
|
|
||||||
|
private static final byte[] NO_DATA = new byte[]{};
|
||||||
|
private static final byte[] END_OF_FRAME = new byte[]{0,'\n'};
|
||||||
|
|
||||||
|
private static final int MAX_COMMAND_LENGTH = 1024;
|
||||||
|
private static final int MAX_HEADER_LENGTH = 1024*10;
|
||||||
|
private static final int MAX_HEADERS = 1000;
|
||||||
|
private static final int MAX_DATA_LENGTH = 1024*1024*100;
|
||||||
|
|
||||||
|
private int version=1;
|
||||||
|
|
||||||
|
public Packet marshal(Object command) throws IOException {
|
||||||
|
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
||||||
|
DataOutputStream dos = new DataOutputStream(baos);
|
||||||
|
marshal(command, dos);
|
||||||
|
dos.close();
|
||||||
|
return new ByteArrayPacket(baos.toByteSequence());
|
||||||
|
}
|
||||||
|
|
||||||
|
public Object unmarshal(Packet packet) throws IOException {
|
||||||
|
PacketInputStream stream = new PacketInputStream(packet);
|
||||||
|
DataInputStream dis = new DataInputStream(stream);
|
||||||
|
return unmarshal(dis);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void marshal(Object command, DataOutputStream os) throws IOException {
|
||||||
|
StompCommand stomp = (org.apache.activemq.transport.stomp2.StompCommand) command;
|
||||||
|
|
||||||
|
StringBuffer buffer = new StringBuffer();
|
||||||
|
buffer.append(stomp.getAction());
|
||||||
|
buffer.append(Stomp.NEWLINE);
|
||||||
|
|
||||||
|
// Output the headers.
|
||||||
|
for (Iterator iter = stomp.getHeaders().entrySet().iterator(); iter.hasNext();) {
|
||||||
|
Map.Entry entry = (Map.Entry) iter.next();
|
||||||
|
buffer.append(entry.getKey());
|
||||||
|
buffer.append(Stomp.Headers.SEPERATOR);
|
||||||
|
buffer.append(entry.getValue());
|
||||||
|
buffer.append(Stomp.NEWLINE);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add a newline to seperate the headers from the content.
|
||||||
|
buffer.append(Stomp.NEWLINE);
|
||||||
|
|
||||||
|
os.write(buffer.toString().getBytes("UTF-8"));
|
||||||
|
os.write(stomp.getContent());
|
||||||
|
os.write(END_OF_FRAME);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
public Object unmarshal(DataInputStream in) throws IOException {
|
||||||
|
|
||||||
|
String action = null;
|
||||||
|
|
||||||
|
// skip white space to next real action line
|
||||||
|
while (true) {
|
||||||
|
action = readLine(in, MAX_COMMAND_LENGTH, "The maximum command length was exceeded");
|
||||||
|
if (action == null) {
|
||||||
|
throw new IOException("connection was closed");
|
||||||
|
} else {
|
||||||
|
action = action.trim();
|
||||||
|
if (action.length() > 0) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Parse the headers
|
||||||
|
HashMap headers = new HashMap(25);
|
||||||
|
while (true) {
|
||||||
|
String line = readLine(in, MAX_HEADER_LENGTH, "The maximum header length was exceeded");
|
||||||
|
if (line != null && line.trim().length() > 0) {
|
||||||
|
|
||||||
|
if( headers.size() > MAX_HEADERS )
|
||||||
|
throw new ProtocolException("The maximum number of headers was exceeded");
|
||||||
|
|
||||||
|
try {
|
||||||
|
int seperator_index = line.indexOf(Stomp.Headers.SEPERATOR);
|
||||||
|
String name = line.substring(0, seperator_index).trim();
|
||||||
|
String value = line.substring(seperator_index + 1, line.length()).trim();
|
||||||
|
headers.put(name, value);
|
||||||
|
}
|
||||||
|
catch (Exception e) {
|
||||||
|
throw new ProtocolException("Unable to parser header line [" + line + "]");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Read in the data part.
|
||||||
|
byte[] data = NO_DATA;
|
||||||
|
String contentLength = (String)headers.get(Stomp.Headers.CONTENT_LENGTH);
|
||||||
|
if (contentLength!=null) {
|
||||||
|
|
||||||
|
// Bless the client, he's telling us how much data to read in.
|
||||||
|
int length;
|
||||||
|
try {
|
||||||
|
length = Integer.parseInt(contentLength.trim());
|
||||||
|
} catch (NumberFormatException e) {
|
||||||
|
throw new ProtocolException("Specified content-length is not a valid integer");
|
||||||
|
}
|
||||||
|
|
||||||
|
if( length > MAX_DATA_LENGTH )
|
||||||
|
throw new ProtocolException("The maximum data length was exceeded");
|
||||||
|
|
||||||
|
data = new byte[length];
|
||||||
|
in.readFully(data);
|
||||||
|
|
||||||
|
if (in.readByte() != 0) {
|
||||||
|
throw new ProtocolException(Stomp.Headers.CONTENT_LENGTH+" bytes were read and " + "there was no trailing null byte");
|
||||||
|
}
|
||||||
|
|
||||||
|
} else {
|
||||||
|
|
||||||
|
// We don't know how much to read.. data ends when we hit a 0
|
||||||
|
byte b;
|
||||||
|
ByteArrayOutputStream baos=null;
|
||||||
|
while ((b = in.readByte()) != 0) {
|
||||||
|
|
||||||
|
if( baos == null ) {
|
||||||
|
baos = new ByteArrayOutputStream();
|
||||||
|
} else if( baos.size() > MAX_DATA_LENGTH ) {
|
||||||
|
throw new ProtocolException("The maximum data length was exceeded");
|
||||||
|
}
|
||||||
|
|
||||||
|
baos.write(b);
|
||||||
|
}
|
||||||
|
|
||||||
|
if( baos!=null ) {
|
||||||
|
baos.close();
|
||||||
|
data = baos.toByteArray();
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
return new StompCommand(action, headers, data);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
private String readLine(DataInputStream in, int maxLength, String errorMessage) throws IOException {
|
||||||
|
byte b;
|
||||||
|
ByteArrayOutputStream baos=new ByteArrayOutputStream(maxLength);
|
||||||
|
while ((b = in.readByte()) != '\n') {
|
||||||
|
if( baos.size() > maxLength )
|
||||||
|
throw new ProtocolException(errorMessage);
|
||||||
|
baos.write(b);
|
||||||
|
}
|
||||||
|
ByteSequence sequence = baos.toByteSequence();
|
||||||
|
return new String(sequence.getData(),sequence.getOffset(),sequence.getLength(),"UTF-8");
|
||||||
|
}
|
||||||
|
|
||||||
|
public int getVersion() {
|
||||||
|
return version;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setVersion(int version) {
|
||||||
|
this.version = version;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,29 @@
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Copyright 2005-2006 The Apache Software Foundation
|
||||||
|
*
|
||||||
|
* Licensed 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.transport.stomp2;
|
||||||
|
|
||||||
|
import org.apache.activeio.command.WireFormat;
|
||||||
|
import org.apache.activeio.command.WireFormatFactory;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Creates WireFormat objects that marshalls the <a href="http://stomp.codehaus.org/">Stomp</a> protocol.
|
||||||
|
*/
|
||||||
|
public class StompWireFormatFactory implements WireFormatFactory {
|
||||||
|
public WireFormat createWireFormat() {
|
||||||
|
return new StompWireFormat();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -1 +1 @@
|
||||||
class=org.apache.activemq.transport.stomp.StompTransportFactory
|
class=org.apache.activemq.transport.stomp2.StompTransportFactory
|
||||||
|
|
|
||||||
|
|
@ -1 +1 @@
|
||||||
class=org.apache.activemq.transport.stomp.StompWireFormatFactory
|
class=org.apache.activemq.transport.stomp2.StompWireFormatFactory
|
||||||
Loading…
Reference in New Issue