Created common AMQMethodListener class, allowing the Request and Response managers to use a common interface to dispatch events to both the client and servers. Refactoring of bothe the client and broker AMQStateManagers and AMQProtocolSession classes was performed. The refactoring has run aground in the clustering, however, and this still needs to be resolved. As the cluster tests are currently disabled (by whom, I'm not sure), this does not disrupt the overall test result. JIRAs will be opened for this issue.

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk@495754 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 49 insertions, 0 deletions

diff --git a/qpid/java/common/src/main/java/org/apache/qpid/protocol/AMQMethodListener.java b/qpid/java/common/src/main/java/org/apache/qpid/protocol/AMQMethodListener.java
new file mode 100644
index 0000000000..f77b5084f3
--- /dev/null
+++ b/qpid/java/common/src/main/java/org/apache/qpid/protocol/AMQMethodListener.java
@@ -0,0 +1,49 @@
+/*
+ *
+ * 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.protocol;
+
+import org.apache.qpid.framing.AMQMethodBody;
+
+/**
+ * Interface that allows classes to register for interest in protocol method frames.
+ * 
+ */
+public interface AMQMethodListener
+{
+    /**
+     * Invoked when a method frame has been received
+     * @param evt the event that contains the method and channel
+     * @param protocolSession the protocol session associated with the event
+     * @return true if the handler has processed the method frame, false otherwise. Note
+     * that this does not prohibit the method event being delivered to subsequent listeners
+     * but can be used to determine if nobody has dealt with an incoming method frame.
+     * @throws AMQException if an error has occurred. This exception will be delivered
+     * to all registered listeners using the error() method (see below) allowing them to
+     * perform cleanup if necessary.
+     */
+    <B extends AMQMethodBody> boolean methodReceived(AMQMethodEvent<B> evt) throws Exception;
+
+    /**
+     * Callback when an error has occurred. Allows listeners to clean up.
+     * @param e
+     */
+    void error(Exception e);
+}