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changed parameter handling to impose a strict ordering to avoid reordering of messages by client libraries 

git-svn-id: https://svn.apache.org/repos/asf/incubator/activemq/trunk@415827 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gregory John Wilkins 2006-06-20 22:26:49 +00:00
parent 26c45dee0a
commit 6fbb56868f
2 changed files with 40 additions and 24 deletions
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55
activemq-web/src/main/java/org/apache/activemq/web/MessageListenerServlet.java
View File

@ -90,7 +90,16 @@ public class MessageListenerServlet extends MessageServletSupport {
}
/**
* Sends a message to a destination
* Sends a message to a destination or manage subscriptions.
*
* If the the content type of the POST is <code>application/x-www-form-urlencoded</code>, then the form parameters
* "destination", "message" and "type" are used to pass a message or a subscription. If multiple messages
* or subscriptions are passed in a single post, then additional parameters are shortened to "dN", "mN" and "tN"
* where N is an index starting from 1. The type is either "send", "listen" or "unlisten". For send types,
* the message is the text of the TextMessage, otherwise it is the ID to be used for the subscription.
*
* If the content type is not <code>application/x-www-form-urlencoded</code>, then the body of the post is
* sent as the message to a destination that is derived from a query parameter, the URL or the default destination.
*
* @param request
* @param response
@ -110,30 +119,30 @@ public class MessageListenerServlet extends MessageServletSupport {
log.debug("POST client="+client+" session="+request.getSession().getId()+" info="+request.getPathInfo()+" contentType="+request.getContentType());
// dump(request.getParameterMap());
}
String[] destinations = request.getParameterValues("destination");
String[] messages = request.getParameterValues("message");
String[] types = request.getParameterValues("type");
if (destinations.length!=messages.length || messages.length!=types.length)
{
if (log.isDebugEnabled()) {
log.debug("ERROR destination="+destinations.length+" message="+messages.length+" type="+types.length);
}
response.sendError(HttpServletResponse.SC_BAD_REQUEST,"missmatched destination, message or type");
return;
}
int messages=0;
for (int i=0;i<types.length;i++)
// loop until no more messages
while (true)
{
// Get the message parameters. Multiple messages are encoded with more compact parameter names.
String destination_name = request.getParameter(messages==0?"destination":("d"+messages));
String message = request.getParameter(messages==0?"message":("m"+messages));
String type = request.getParameter(messages==0?"type":("t"+messages));
if (destination_name==null || message==null || type==null)
break;
try {
String type=types[i];
Destination destination=getDestination(client,request,destinations[i]);
Destination destination=getDestination(client,request,destination_name);
if (log.isDebugEnabled()) {
log.debug(i+" destination="+destinations[i]+" message="+messages[i]+" type="+types[i]);
log.debug(messages+" destination="+destination_name+" message="+message+" type="+type);
log.debug(destination+" is a "+destination.getClass().getName());
}
messages++;
if ("listen".equals(type))
{
Listener listener = getListener(request);
@ -142,9 +151,9 @@ public class MessageListenerServlet extends MessageServletSupport {
MessageAvailableConsumer consumer = (MessageAvailableConsumer) client.getConsumer(destination);
consumer.setAvailableListener(listener);
consumerIdMap.put(consumer, messages[i]);
consumerIdMap.put(consumer, message);
if (log.isDebugEnabled()) {
log.debug("Subscribed: "+consumer+" to "+destination+" id="+messages[i]);
log.debug("Subscribed: "+consumer+" to "+destination+" id="+message);
}
}
else if ("unlisten".equals(type))
@ -161,13 +170,13 @@ public class MessageListenerServlet extends MessageServletSupport {
}
else if ("send".equals(type))
{
TextMessage message = client.getSession().createTextMessage(messages[i]);
appendParametersToMessage(request, message);
TextMessage text = client.getSession().createTextMessage(message);
appendParametersToMessage(request, text);
client.send(destination, message);
message_ids+=message.getJMSMessageID()+"\n";
client.send(destination, text);
message_ids+=text.getJMSMessageID()+"\n";
if (log.isDebugEnabled()) {
log.debug("Sent "+messages[i]+" to "+destination);
log.debug("Sent "+message+" to "+destination);
}
}
else

9
activemq-web/src/main/resources/org/apache/activemq/web/_amq.js
View File

@ -147,7 +147,14 @@ var amq =
{
if (amq._queueMessages>0)
{
amq._messageQueue+=(amq._messages==0?'destination=':'&destination=')+destination+'&message='+message+'&type='+type;
if (amq._messages==0)
{
amq._messageQueue='destination='+destination+'&message='+message+'&type='+type;
}
else
{
amq._messageQueue='d'+amq._messages+'='+destination+'&m'+amq._messages+'='+message+'&t'+amq._messages+'='+type;
}
amq._messages++;
}
else