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diff --git a/qpid/cpp/src/qpid/cluster/exp/MessageHandler.h b/qpid/cpp/src/qpid/cluster/exp/MessageHandler.h
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+++ b/qpid/cpp/src/qpid/cluster/exp/MessageHandler.h
@@ -0,0 +1,73 @@
+#ifndef QPID_CLUSTER_MESSAGEHANDLER_H
+#define QPID_CLUSTER_MESSAGEHANDLER_H
+
+/*
+ *
+ * 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.
+ *
+ */
+
+// TODO aconway 2010-10-19: experimental cluster code.
+
+#include "HandlerBase.h"
+#include "qpid/framing/AMQP_AllOperations.h"
+#include <boost/intrusive_ptr.hpp>
+#include <map>
+
+namespace qpid {
+
+namespace broker {
+class Message;
+class Broker;
+class Queue;
+}
+
+namespace cluster {
+class EventHandler;
+class BrokerHandler;
+
+/**
+ * Handler for message disposition events.
+ */
+class MessageHandler : public framing::AMQP_AllOperations::ClusterMessageHandler,
+                       public HandlerBase
+{
+  public:
+    MessageHandler(EventHandler&);
+
+    bool invoke(const framing::AMQBody& body);
+
+    void routing(uint32_t routingId, const std::string& message);
+    void enqueue(uint32_t routingId, const std::string& queue);
+    void routed(uint32_t routingId);
+    void dequeue(const std::string& queue, uint32_t position);
+  private:
+    struct Member {
+        typedef std::map<uint32_t, boost::intrusive_ptr<broker::Message> > RoutingMap;
+        RoutingMap routingMap;
+    };
+    typedef std::map<MemberId, Member> MemberMap;
+
+    boost::shared_ptr<broker::Queue> findQueue(const std::string& q, const char* msg);
+
+    broker::Broker& broker;
+    MemberMap memberMap;
+};
+}} // namespace qpid::cluster
+
+#endif  /*!QPID_CLUSTER_MESSAGEHANDLER_H*/