From 7b14c847e3de611d73a41d636c307c7d940e4522 Mon Sep 17 00:00:00 2001
From: Arnaud Simon <arnaudsimon@apache.org>
Date: Wed, 17 Oct 2007 14:09:46 +0000
Subject: Cahnged flow control for message selector

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk@585514 13f79535-47bb-0310-9956-ffa450edef68
---
 .../qpid/client/BasicMessageConsumer_0_10.java     | 36 ++++++++++++++++------
 1 file changed, 27 insertions(+), 9 deletions(-)

(limited to 'qpid/java')

diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java b/qpid/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java
index 58b84910d4..bfdaa66618 100644
--- a/qpid/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java
@@ -298,12 +298,24 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<Struct[], By
             // the current message received is not good, so we need to get a message.
             if (getMessageListener() == null)
             {
+                  int oldval = _messageCounter.intValue();
                 _0_10session.getQpidSession().messageFlow(getConsumerTag().toString(),
                     org.apache.qpidity.nclient.Session.MESSAGE_FLOW_UNIT_MESSAGE,1);
                 _0_10session.getQpidSession().messageFlush(getConsumerTag().toString());
                 _0_10session.getQpidSession().sync();
                 _0_10session.getQpidSession().messageFlow(getConsumerTag().toString(),Session.MESSAGE_FLOW_UNIT_BYTE, 0xFFFFFFFF);
+                if( _messageCounter.intValue() <= oldval )
+                {
+                    // we haven't received a message so tell the receiver to return null                     
+                    _synchronousQueue.add(new NullTocken());
+                }
+                else
+                {
+                    _messageCounter.decrementAndGet();
+                }
             }
+            // we now need to check if we have received a message
+
         }
         catch(Exception e)
         {
@@ -378,11 +390,6 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<Struct[], By
         return result;
     }
 
-    void preDeliver(AbstractJMSMessage msg)
-    {
-        _messageCounter.decrementAndGet();
-         super.preDeliver(msg);
-    }
 
     public void setMessageListener(final MessageListener messageListener) throws JMSException
     {
@@ -443,12 +450,23 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<Struct[], By
                 {
                       o = _synchronousQueue.take();
                 }
-                else
-                {
-                    System.out.println("null");
-                }
             }
         }
+        if( o instanceof NullTocken )
+        {
+            o = null;
+        }
         return o;
     }
+
+     protected void preApplicationProcessing(AbstractJMSMessage jmsMsg) throws JMSException
+    {
+        _messageCounter.decrementAndGet();
+        super.preApplicationProcessing(jmsMsg);
+    }
+
+    private class NullTocken
+    {
+
+    }
 }
\ No newline at end of file
-- 
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