From dea98703539c212fbb2ac0db304e107f48d237ac Mon Sep 17 00:00:00 2001
From: Rajith Muditha Attapattu <rajith@apache.org>
Date: Tue, 13 Jan 2009 18:19:00 +0000
Subject: This is related to QPID-1479 This commit contains the core classes
 for adding the thread abstraction patch

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@734205 13f79535-47bb-0310-9956-ffa450edef68
---
 .../java/org/apache/qpid/client/AMQSession.java    | 55 +++++++++++++++-------
 1 file changed, 37 insertions(+), 18 deletions(-)

(limited to 'qpid/java/client')

diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/AMQSession.java b/qpid/java/client/src/main/java/org/apache/qpid/client/AMQSession.java
index b5d12d9520..af0ed3faa3 100644
--- a/qpid/java/client/src/main/java/org/apache/qpid/client/AMQSession.java
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/AMQSession.java
@@ -67,16 +67,26 @@ import org.apache.qpid.client.failover.FailoverException;
 import org.apache.qpid.client.failover.FailoverNoopSupport;
 import org.apache.qpid.client.failover.FailoverProtectedOperation;
 import org.apache.qpid.client.failover.FailoverRetrySupport;
-import org.apache.qpid.client.message.*;
+import org.apache.qpid.client.message.AMQMessageDelegateFactory;
+import org.apache.qpid.client.message.AbstractJMSMessage;
+import org.apache.qpid.client.message.CloseConsumerMessage;
+import org.apache.qpid.client.message.JMSBytesMessage;
+import org.apache.qpid.client.message.JMSMapMessage;
+import org.apache.qpid.client.message.JMSObjectMessage;
+import org.apache.qpid.client.message.JMSStreamMessage;
+import org.apache.qpid.client.message.JMSTextMessage;
+import org.apache.qpid.client.message.MessageFactoryRegistry;
+import org.apache.qpid.client.message.UnprocessedMessage;
 import org.apache.qpid.client.protocol.AMQProtocolHandler;
-import org.apache.qpid.client.util.FlowControllingBlockingQueue;
-import org.apache.qpid.client.state.AMQStateManager;
 import org.apache.qpid.client.state.AMQState;
+import org.apache.qpid.client.state.AMQStateManager;
+import org.apache.qpid.client.util.FlowControllingBlockingQueue;
 import org.apache.qpid.framing.AMQShortString;
 import org.apache.qpid.framing.FieldTable;
 import org.apache.qpid.framing.FieldTableFactory;
 import org.apache.qpid.framing.MethodRegistry;
 import org.apache.qpid.jms.Session;
+import org.apache.qpid.thread.Threading;
 import org.apache.qpid.url.AMQBindingURL;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -271,6 +281,8 @@ public abstract class AMQSession<C extends BasicMessageConsumer, P extends Basic
 
     /** Holds the dispatcher thread for this session. */
     protected Dispatcher _dispatcher;
+    
+    protected Thread _dispatcherThread;
 
     /** Holds the message factory factory for this session. */
     protected MessageFactoryRegistry _messageFactoryRegistry;
@@ -668,7 +680,7 @@ public abstract class AMQSession<C extends BasicMessageConsumer, P extends Basic
             if (_dispatcher != null)
             {
                 // Failover failed and ain't coming back. Knife the dispatcher.
-                _dispatcher.interrupt();
+                _dispatcherThread.interrupt();
             }
         }
 
@@ -1852,7 +1864,7 @@ public abstract class AMQSession<C extends BasicMessageConsumer, P extends Basic
     void startDispatcherIfNecessary()
     {
         //If we are the dispatcher then we don't need to check we are started
-        if (Thread.currentThread() == _dispatcher)
+        if (Thread.currentThread() == _dispatcherThread)
         {
             return;
         }
@@ -1883,9 +1895,23 @@ public abstract class AMQSession<C extends BasicMessageConsumer, P extends Basic
         if (_dispatcher == null)
         {
             _dispatcher = new Dispatcher();
-            _dispatcher.setDaemon(true);
+            try
+            {
+                _dispatcherThread = Threading.getThreadFactory().createThread(_dispatcher);       
+                
+            }
+            catch(Exception e)
+            {
+                throw new Error("Error creating Dispatcher thread",e);
+            }            
+            _dispatcherThread.setName("Dispatcher-Channel-" + _channelId);
+            _dispatcherThread.setDaemon(true);
             _dispatcher.setConnectionStopped(initiallyStopped);
-            _dispatcher.start();
+            _dispatcherThread.start();
+            if (_dispatcherLogger.isInfoEnabled())
+            {
+                _dispatcherLogger.info(_dispatcherThread.getName() + " created");
+            }
         }
         else
         {
@@ -2606,7 +2632,7 @@ public abstract class AMQSession<C extends BasicMessageConsumer, P extends Basic
     private static final Logger _dispatcherLogger = LoggerFactory.getLogger("org.apache.qpid.client.AMQSession.Dispatcher");
 
     /** Responsible for decoding a message fragment and passing it to the appropriate message consumer. */
-    class Dispatcher extends Thread
+    class Dispatcher implements Runnable
     {
 
         /** Track the 'stopped' state of the dispatcher, a session starts in the stopped state. */
@@ -2615,21 +2641,14 @@ public abstract class AMQSession<C extends BasicMessageConsumer, P extends Basic
         private final Object _lock = new Object();
         private String dispatcherID = "" + System.identityHashCode(this);
 
-
-
         public Dispatcher()
         {
-            super("Dispatcher-Channel-" + _channelId);
-            if (_dispatcherLogger.isInfoEnabled())
-            {
-                _dispatcherLogger.info(getName() + " created");
-            }
         }
 
         public void close()
         {
             _closed.set(true);
-            interrupt();
+            _dispatcherThread.interrupt();
 
             // fixme awaitTermination
 
@@ -2708,7 +2727,7 @@ public abstract class AMQSession<C extends BasicMessageConsumer, P extends Basic
         {
             if (_dispatcherLogger.isInfoEnabled())
             {
-                _dispatcherLogger.info(getName() + " started");
+                _dispatcherLogger.info(_dispatcherThread.getName() + " started");
             }
 
             UnprocessedMessage message;
@@ -2771,7 +2790,7 @@ public abstract class AMQSession<C extends BasicMessageConsumer, P extends Basic
 
             if (_dispatcherLogger.isInfoEnabled())
             {
-                _dispatcherLogger.info(getName() + " thread terminating for channel " + _channelId);
+                _dispatcherLogger.info(_dispatcherThread.getName() + " thread terminating for channel " + _channelId);
             }
         }
 
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