From 865436044bceebaae348747dedbc126e2b22eb5d Mon Sep 17 00:00:00 2001
From: "Rafael H. Schloming" <rhs@apache.org>
Date: Sat, 7 Jun 2008 13:42:01 +0000
Subject: QPID-1126: reuse channel numbers for sessions that have closed, and
 honor the negotiated channel-max; also removed unnecessary catches that were
 swallowing stack traces from several tests

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk@664339 13f79535-47bb-0310-9956-ffa450edef68
---
 .../java/org/apache/qpidity/transport/Channel.java |  4 ---
 .../apache/qpidity/transport/ChannelDelegate.java  |  4 ++-
 .../org/apache/qpidity/transport/Connection.java   | 37 +++++++++++++++++++---
 .../qpidity/transport/ConnectionDelegate.java      |  2 +-
 .../java/org/apache/qpidity/transport/Session.java |  1 -
 5 files changed, 36 insertions(+), 12 deletions(-)

(limited to 'qpid/java/common/src')

diff --git a/qpid/java/common/src/main/java/org/apache/qpidity/transport/Channel.java b/qpid/java/common/src/main/java/org/apache/qpidity/transport/Channel.java
index ad727676c4..2e11329c5b 100644
--- a/qpid/java/common/src/main/java/org/apache/qpidity/transport/Channel.java
+++ b/qpid/java/common/src/main/java/org/apache/qpidity/transport/Channel.java
@@ -131,10 +131,6 @@ public class Channel extends Invoker
         {
             session.closed();
         }
-    }
-
-    public void close()
-    {
         connection.removeChannel(channel);
     }
 
diff --git a/qpid/java/common/src/main/java/org/apache/qpidity/transport/ChannelDelegate.java b/qpid/java/common/src/main/java/org/apache/qpidity/transport/ChannelDelegate.java
index 9470520937..96578ffeb8 100644
--- a/qpid/java/common/src/main/java/org/apache/qpidity/transport/ChannelDelegate.java
+++ b/qpid/java/common/src/main/java/org/apache/qpidity/transport/ChannelDelegate.java
@@ -41,12 +41,14 @@ class ChannelDelegate extends MethodDelegate<Channel>
 
     public @Override void sessionDetached(Channel channel, SessionDetached closed)
     {
-        channel.getSession().closed();
+        channel.closed();
     }
 
     public @Override void sessionDetach(Channel channel, SessionDetach dtc)
     {
         channel.getSession().closed();
+        channel.sessionDetached(dtc.getName(), SessionDetachCode.NORMAL);
+        channel.closed();
     }
 
 }
diff --git a/qpid/java/common/src/main/java/org/apache/qpidity/transport/Connection.java b/qpid/java/common/src/main/java/org/apache/qpidity/transport/Connection.java
index 7d707ce17b..9829343491 100644
--- a/qpid/java/common/src/main/java/org/apache/qpidity/transport/Connection.java
+++ b/qpid/java/common/src/main/java/org/apache/qpidity/transport/Connection.java
@@ -22,8 +22,9 @@ package org.apache.qpidity.transport;
 
 import org.apache.qpidity.transport.util.Logger;
 
+import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.Iterator;
+import java.util.List;
 import java.util.Map;
 
 import java.nio.ByteBuffer;
@@ -48,6 +49,7 @@ public class Connection
 
     final private Sender<ConnectionEvent> sender;
     final private ConnectionDelegate delegate;
+    private int channelMax = 1;
     // want to make this final
     private int _connectionId;
 
@@ -88,6 +90,32 @@ public class Connection
         sender.send(event);
     }
 
+    public int getChannelMax()
+    {
+        return channelMax;
+    }
+
+    void setChannelMax(int max)
+    {
+        channelMax = max;
+    }
+
+    public Channel getChannel()
+    {
+        synchronized (channels)
+        {
+            for (int i = 0; i < getChannelMax(); i++)
+            {
+                if (!channels.containsKey(i))
+                {
+                    return getChannel(i);
+                }
+            }
+
+            throw new RuntimeException("no more channels available");
+        }
+    }
+
     public Channel getChannel(int number)
     {
         synchronized (channels)
@@ -120,11 +148,10 @@ public class Connection
         log.debug("connection closed: %s", this);
         synchronized (channels)
         {
-            for (Iterator<Channel> it = channels.values().iterator();
-                 it.hasNext(); )
+            List<Channel> values = new ArrayList<Channel>(channels.values());
+            for (Channel ch : values)
             {
-                it.next().closed();
-                it.remove();
+                ch.closed();
             }
         }
         delegate.closed();
diff --git a/qpid/java/common/src/main/java/org/apache/qpidity/transport/ConnectionDelegate.java b/qpid/java/common/src/main/java/org/apache/qpidity/transport/ConnectionDelegate.java
index cb5f05a185..14344991c6 100644
--- a/qpid/java/common/src/main/java/org/apache/qpidity/transport/ConnectionDelegate.java
+++ b/qpid/java/common/src/main/java/org/apache/qpidity/transport/ConnectionDelegate.java
@@ -152,7 +152,7 @@ public abstract class ConnectionDelegate extends MethodDelegate<Channel>
 
     @Override public void connectionTune(Channel context, ConnectionTune struct)
     {
-        // should update the channel max given by the broker.
+        context.getConnection().setChannelMax(struct.getChannelMax());
         context.connectionTuneOk(struct.getChannelMax(), struct.getMaxFrameSize(), struct.getHeartbeatMax());
         context.connectionOpen(_virtualHost, null, Option.INSIST);
     }
diff --git a/qpid/java/common/src/main/java/org/apache/qpidity/transport/Session.java b/qpid/java/common/src/main/java/org/apache/qpidity/transport/Session.java
index d1ea23035a..a0229adf1e 100644
--- a/qpid/java/common/src/main/java/org/apache/qpidity/transport/Session.java
+++ b/qpid/java/common/src/main/java/org/apache/qpidity/transport/Session.java
@@ -526,7 +526,6 @@ public class Session extends Invoker
                 }
             }
         }
-        channel.close();
         channel.setSession(null);
         channel = null;
     }
-- 
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