1 files changed, 72 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/replication/ReplicationExchange.h b/qpid/cpp/src/qpid/replication/ReplicationExchange.h
new file mode 100644
index 0000000000..4b34e0df13
--- /dev/null
+++ b/qpid/cpp/src/qpid/replication/ReplicationExchange.h
@@ -0,0 +1,72 @@
+#ifndef QPID_REPLICATION_REPLICATIONEXCHANGE_H
+#define QPID_REPLICATION_REPLICATIONEXCHANGE_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.
+ *
+ */
+#include "qpid/broker/Exchange.h"
+#include "qpid/framing/Buffer.h"
+#include "qpid/framing/SequenceNumber.h"
+
+namespace qpid {
+
+namespace broker {
+class QueueRegistry;
+}
+
+namespace replication {
+
+/**
+ * A custom exchange plugin that processes incoming messages
+ * representing enqueue or dequeue events for particular queues and
+ * carries out the corresponding action to replicate that on the local
+ * broker.
+ */
+class ReplicationExchange : public qpid::broker::Exchange
+{
+  public:
+    static const std::string typeName;
+
+    ReplicationExchange(const std::string& name, bool durable, 
+                        const qpid::framing::FieldTable& args,
+                        qpid::broker::QueueRegistry& queues,
+                        qpid::management::Manageable* parent = 0,
+                        qpid::broker::Broker* broker = 0);
+
+    std::string getType() const;
+
+    void route(qpid::broker::Deliverable& msg, const std::string& routingKey, const qpid::framing::FieldTable* args);
+        
+    bool bind(boost::shared_ptr<broker::Queue> queue, const std::string& routingKey, const qpid::framing::FieldTable* args);
+    bool unbind(boost::shared_ptr<broker::Queue> queue, const std::string& routingKey, const qpid::framing::FieldTable* args);
+    bool isBound(boost::shared_ptr<broker::Queue> queue, const std::string* const routingKey, const qpid::framing::FieldTable* const args);
+  private:
+    qpid::broker::QueueRegistry& queues;
+    qpid::framing::SequenceNumber sequence;
+    bool init;
+
+    bool isDuplicate(const qpid::framing::FieldTable* args);
+    void handleEnqueueEvent(const qpid::framing::FieldTable* args, qpid::broker::Deliverable& msg);
+    void handleDequeueEvent(const qpid::framing::FieldTable* args, qpid::broker::Deliverable& msg);
+    void encode(framing::Buffer& buffer) const;
+};
+}} // namespace qpid::replication
+
+#endif  /*!QPID_REPLICATION_REPLICATIONEXCHANGE_H*/