1 files changed, 40 insertions, 62 deletions

diff --git a/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java b/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java
index 3c24c67f9b..5fba351d8a 100644
--- a/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java
+++ b/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java
@@ -150,13 +150,20 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
             {
                 if (isMessageListenerSet() && capacity == 0)
                 {
-                    _0_10session.getQpidSession().messageFlow(getConsumerTagString(),
-                                                              MessageCreditUnit.MESSAGE, 1,
-                                                              Option.UNRELIABLE);
+                    messageFlow();
                 }
                 _logger.debug("messageOk, trying to notify");
                 super.notifyMessage(jmsMessage);
             }
+            else
+            {
+                // if we are synchronously waiting for a message
+                // and messages are not pre-fetched we then need to request another one
+                if(capacity == 0)
+                {
+                   messageFlow();
+                }
+            }
         }
         catch (AMQException e)
         {
@@ -245,6 +252,7 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
             _logger.debug("messageOk " + messageOk);
             _logger.debug("_preAcquire " + _preAcquire);
         }
+
         if (!messageOk)
         {
             if (_preAcquire)
@@ -261,19 +269,11 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
             {
                 if (_logger.isDebugEnabled())
                 {
-                    _logger.debug("Message not OK, releasing");
+                    _logger.debug("filterMessage - not ack'ing messaage as not aquired");
                 }
-                releaseMessage(message);
-            }
-            // if we are syncrhonously waiting for a message
-            // and messages are not prefetched we then need to request another one
-            if(capacity == 0)
-            {
-               _0_10session.getQpidSession().messageFlow(getConsumerTagString(),
-                                                         MessageCreditUnit.MESSAGE, 1,
-                                                         Option.UNRELIABLE);
             }
         }
+
         // now we need to acquire this message if needed
         // this is the case of queue with a message selector set
         if (!_preAcquire && messageOk && !isNoConsume())
@@ -285,6 +285,7 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
             messageOk = acquireMessage(message);
             _logger.debug("filterMessage - message acquire status : " + messageOk);
         }
+
         return messageOk;
     }
 
@@ -295,38 +296,18 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
      * @param message The message to be acknowledged
      * @throws AMQException If the message cannot be acquired due to some internal error.
      */
-    private void acknowledgeMessage(AbstractJMSMessage message) throws AMQException
+    private void acknowledgeMessage(final AbstractJMSMessage message) throws AMQException
     {
-        if (!_preAcquire)
-        {
-            RangeSet ranges = new RangeSet();
-            ranges.add((int) message.getDeliveryTag());
-            _0_10session.messageAcknowledge
-                (ranges,
-                 _acknowledgeMode != org.apache.qpid.jms.Session.NO_ACKNOWLEDGE);
-
-            AMQException amqe = _0_10session.getCurrentException();
-            if (amqe != null)
-            {
-                throw amqe;
-            }
-        }
-    }
+        final RangeSet ranges = new RangeSet();
+        ranges.add((int) message.getDeliveryTag());
+        _0_10session.messageAcknowledge
+            (ranges,
+             _acknowledgeMode != org.apache.qpid.jms.Session.NO_ACKNOWLEDGE);
 
-    /**
-     * Release a message
-     *
-     * @param message The message to be released
-     * @throws AMQException If the message cannot be released due to some internal error.
-     */
-    private void releaseMessage(AbstractJMSMessage message) throws AMQException
-    {
-        if (_preAcquire)
+        final AMQException amqe = _0_10session.getCurrentException();
+        if (amqe != null)
         {
-            RangeSet ranges = new RangeSet();
-            ranges.add((int) message.getDeliveryTag());
-            _0_10session.getQpidSession().messageRelease(ranges);
-            _0_10session.sync();
+            throw amqe;
         }
     }
 
@@ -337,25 +318,28 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
      * @return true if the message has been acquired, false otherwise.
      * @throws AMQException If the message cannot be acquired due to some internal error.
      */
-    private boolean acquireMessage(AbstractJMSMessage message) throws AMQException
+    private boolean acquireMessage(final AbstractJMSMessage message) throws AMQException
     {
         boolean result = false;
-        if (!_preAcquire)
-        {
-            RangeSet ranges = new RangeSet();
-            ranges.add((int) message.getDeliveryTag());
+        final RangeSet ranges = new RangeSet();
+        ranges.add((int) message.getDeliveryTag());
 
-            Acquired acq = _0_10session.getQpidSession().messageAcquire(ranges).get();
+        final Acquired acq = _0_10session.getQpidSession().messageAcquire(ranges).get();
 
-            RangeSet acquired = acq.getTransfers();
-            if (acquired != null && acquired.size() > 0)
-            {
-                result = true;
-            }
+        final RangeSet acquired = acq.getTransfers();
+        if (acquired != null && acquired.size() > 0)
+        {
+            result = true;
         }
         return result;
     }
 
+    private void messageFlow()
+    {
+        _0_10session.getQpidSession().messageFlow(getConsumerTagString(),
+                                                  MessageCreditUnit.MESSAGE, 1,
+                                                  Option.UNRELIABLE);
+    }
 
     public void setMessageListener(final MessageListener messageListener) throws JMSException
     {
@@ -364,9 +348,7 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
         {
             if (messageListener != null && capacity == 0)
             {
-                _0_10session.getQpidSession().messageFlow(getConsumerTagString(),
-                                                          MessageCreditUnit.MESSAGE, 1,
-                                                          Option.UNRELIABLE);
+                messageFlow();
             }
             if (messageListener != null && !_synchronousQueue.isEmpty())
             {
@@ -389,9 +371,7 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
     {
         if (_0_10session.isStarted() && _syncReceive.get())
         {
-            _0_10session.getQpidSession().messageFlow
-                (getConsumerTagString(), MessageCreditUnit.MESSAGE, 1,
-                 Option.UNRELIABLE);
+            messageFlow();
         }
     }
 
@@ -412,9 +392,7 @@ public class BasicMessageConsumer_0_10 extends BasicMessageConsumer<UnprocessedM
         }
         if (_0_10session.isStarted() && capacity == 0 && _synchronousQueue.isEmpty())
         {
-            _0_10session.getQpidSession().messageFlow(getConsumerTagString(),
-                                                      MessageCreditUnit.MESSAGE, 1,
-                                                      Option.UNRELIABLE);
+            messageFlow();
         }
         Object o = super.getMessageFromQueue(l);
         if (o == null && _0_10session.isStarted())