QPID-2703: 0-8..0-9-1 Transaction rollback/recover does not restore consumer credit.

This change restores consumer credit after rollback/recover by restoring credit on reciept of basic.reject from the consumer.
This change is basically as QPID-2506, but with additional changes to avoid the 0-10 path. Work by Robbie Gemmell and myself. 

merged from trunk r1203137


git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/0.14@1203316 13f79535-47bb-0310-9956-ffa450edef68

7 files changed, 26 insertions, 17 deletions

diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/flow/WindowCreditManager.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/flow/WindowCreditManager.java
index 9623be595c..fda8cd0eb0 100644
--- a/qpid/java/broker/src/main/java/org/apache/qpid/server/flow/WindowCreditManager.java
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/flow/WindowCreditManager.java
@@ -167,18 +167,6 @@ public class WindowCreditManager extends AbstractFlowCreditManager implements Fl
 
     }
 
-    public void stop()
-    {
-        if(_bytesCreditLimit > 0)
-        {
-            _bytesCreditLimit = 0;
-        }
-        if(_messageCreditLimit > 0)
-        {
-            _messageCreditLimit = 0;
-        }
-
-    }
 
     public synchronized void addCredit(long count, long bytes)
     {
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/QueueEntryImpl.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/QueueEntryImpl.java
index 5b57e40a82..3d011b99c0 100644
--- a/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/QueueEntryImpl.java
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/QueueEntryImpl.java
@@ -233,8 +233,13 @@ public class QueueEntryImpl implements QueueEntry
             if(state instanceof SubscriptionAcquiredState)
             {
                 getQueue().decrementUnackedMsgCount();
+                Subscription subscription = ((SubscriptionAcquiredState)state).getSubscription();
+                if (subscription != null)
+                {
+                    subscription.releaseQueueEntry(this);
+                }
             }
-            
+
             if(!getQueue().isDeleted())
             {
                 getQueue().requeue(this);
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/SimpleAMQQueue.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/SimpleAMQQueue.java
index a095ef47ea..ab47d89e01 100644
--- a/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/SimpleAMQQueue.java
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/SimpleAMQQueue.java
@@ -681,7 +681,7 @@ public class SimpleAMQQueue implements AMQQueue, Subscription.StateListener
                     {
                         // restore credit here that would have been taken away by wouldSuspend since we didn't manage
                         // to acquire the entry for this subscription
-                        sub.onDequeue(entry);
+                        sub.restoreCredit(entry);
                     }
                     else
                     {
@@ -1659,7 +1659,9 @@ public class SimpleAMQQueue implements AMQQueue, Subscription.StateListener
                     {
                         if (sub.acquires() && !node.acquire(sub))
                         {
-                            sub.onDequeue(node);
+                            // restore credit here that would have been taken away by wouldSuspend since we didn't manage
+                            // to acquire the entry for this subscription
+                            sub.restoreCredit(node);
                         }
                         else
                         {
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/Subscription.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/Subscription.java
index 0a3576ff42..3a950c2f4f 100644
--- a/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/Subscription.java
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/Subscription.java
@@ -84,6 +84,8 @@ public interface Subscription
 
     void releaseSendLock();
 
+    void releaseQueueEntry(final QueueEntry queueEntryImpl);
+
     void onDequeue(final QueueEntry queueEntry);
 
     void restoreCredit(final QueueEntry queueEntry);
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/SubscriptionImpl.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/SubscriptionImpl.java
index 6603f58104..8b11a5817a 100644
--- a/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/SubscriptionImpl.java
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/SubscriptionImpl.java
@@ -623,13 +623,16 @@ public abstract class SubscriptionImpl implements Subscription, FlowCreditManage
         restoreCredit(queueEntry);
     }
 
+    public void releaseQueueEntry(final QueueEntry queueEntry)
+    {
+        restoreCredit(queueEntry);
+    }
+
     public void restoreCredit(final QueueEntry queueEntry)
     {
         _creditManager.restoreCredit(1, queueEntry.getSize());
     }
 
-
-
     public void creditStateChanged(boolean hasCredit)
     {
 
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/Subscription_0_10.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/Subscription_0_10.java
index 9d52901fef..0a90d07771 100644
--- a/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/Subscription_0_10.java
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/subscription/Subscription_0_10.java
@@ -675,7 +675,12 @@ public class Subscription_0_10 implements Subscription, FlowCreditManager.FlowCr
 
     public void onDequeue(QueueEntry queueEntry)
     {
+        // no-op for 0-10, credit restored by completing command.
+    }
 
+    public void releaseQueueEntry(QueueEntry queueEntry)
+    {
+        // no-op for 0-10, credit restored by completing command.
     }
 
     public void setStateListener(StateListener listener)
diff --git a/qpid/java/broker/src/test/java/org/apache/qpid/server/subscription/MockSubscription.java b/qpid/java/broker/src/test/java/org/apache/qpid/server/subscription/MockSubscription.java
index 6fbc627d8c..1efe1028db 100644
--- a/qpid/java/broker/src/test/java/org/apache/qpid/server/subscription/MockSubscription.java
+++ b/qpid/java/broker/src/test/java/org/apache/qpid/server/subscription/MockSubscription.java
@@ -212,6 +212,10 @@ public class MockSubscription implements Subscription
     {
     }
 
+    public void releaseQueueEntry(QueueEntry queueEntry)
+    {
+    }
+
     public void send(QueueEntry entry) throws AMQException
     {
         if (messages.contains(entry))