1 files changed, 74 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/handler/BasicCancelMethodHandler.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/handler/BasicCancelMethodHandler.java
new file mode 100644
index 0000000000..29054f55c1
--- /dev/null
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/handler/BasicCancelMethodHandler.java
@@ -0,0 +1,74 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+package org.apache.qpid.server.handler;
+
+import org.apache.qpid.AMQException;
+import org.apache.qpid.framing.BasicCancelBody;
+import org.apache.qpid.framing.BasicCancelOkBody;
+import org.apache.qpid.framing.MethodRegistry;
+import org.apache.qpid.server.AMQChannel;
+import org.apache.qpid.server.protocol.AMQProtocolSession;
+import org.apache.qpid.server.state.AMQStateManager;
+import org.apache.qpid.server.state.StateAwareMethodListener;
+import org.apache.log4j.Logger;
+
+public class BasicCancelMethodHandler implements StateAwareMethodListener<BasicCancelBody>
+{
+    private static final Logger _log = Logger.getLogger(BasicCancelMethodHandler.class);
+
+    private static final BasicCancelMethodHandler _instance = new BasicCancelMethodHandler();
+
+    public static BasicCancelMethodHandler getInstance()
+    {
+        return _instance;
+    }
+
+    private BasicCancelMethodHandler()
+    {
+    }
+
+    public void methodReceived(AMQStateManager stateManager, BasicCancelBody body, int channelId) throws AMQException
+    {
+        AMQProtocolSession session = stateManager.getProtocolSession();
+
+        final AMQChannel channel = session.getChannel(channelId);
+
+
+        if (channel == null)
+        {
+            throw body.getChannelNotFoundException(channelId);
+        }
+
+        if (_log.isDebugEnabled())
+        {
+            _log.debug("BasicCancel: for:" + body.getConsumerTag() +
+                       " nowait:" + body.getNowait());
+        }
+
+        channel.unsubscribeConsumer(body.getConsumerTag());
+        if (!body.getNowait())
+        {
+            MethodRegistry methodRegistry = session.getMethodRegistry();
+            BasicCancelOkBody cancelOkBody = methodRegistry.createBasicCancelOkBody(body.getConsumerTag());
+            session.writeFrame(cancelOkBody.generateFrame(channelId));
+        }
+    }
+}