1 files changed, 103 insertions, 0 deletions
diff --git a/cpp/src/qpid/cluster/SessionManager.cpp b/cpp/src/qpid/cluster/SessionManager.cpp
new file mode 100644
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+++ b/cpp/src/qpid/cluster/SessionManager.cpp
@@ -0,0 +1,103 @@
+/*
+ *
+ * Copyright (c) 2006 The Apache Software Foundation
+ *
+ * Licensed 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/log/Statement.h"
+#include "qpid/framing/amqp_types.h"
+#include "qpid/framing/AMQFrame.h"
+#include "SessionManager.h"
+#include "ClassifierHandler.h"
+
+namespace qpid {
+namespace cluster {
+
+using namespace framing;
+using namespace sys;
+
+/** Wrap plain AMQFrames in SessionFrames */
+struct FrameWrapperHandler : public FrameHandler {
+
+    FrameWrapperHandler(const Uuid& id, bool dir, SessionFrameHandler::Chain next_)
+        : uuid(id), direction(dir), next(next_) {
+        assert(!uuid.isNull());
+    }
+    
+    void handle(AMQFrame& frame) {
+        SessionFrame sf(uuid, frame, direction);
+        assert(next);
+        next->handle(sf);
+    }
+
+    Uuid uuid;
+    bool direction;
+    SessionFrameHandler::Chain next;
+};
+
+SessionManager::SessionManager() {}
+
+void SessionManager::update(FrameHandler::Chains& chains)
+{
+    Mutex::ScopedLock l(lock);
+    // Create a new local session, store local chains.
+    Uuid uuid(true);
+    sessions[uuid] = chains;
+    
+    // Replace local incoming chain. Build from the back.
+    // 
+    // TODO aconway 2007-07-05: Currently mcast wiring, bypass
+    // everythign else.
+    assert(clusterSend);
+    FrameHandler::Chain wiring(new FrameWrapperHandler(uuid, SessionFrame::IN, clusterSend));
+    FrameHandler::Chain classify(new ClassifierHandler(wiring, chains.in));
+    chains.in = classify;
+
+    // FIXME aconway 2007-07-05: Need to stop bypassed frames
+    // from overtaking mcast frames.
+    // 
+
+    // Leave outgoing chain unmodified.
+    // TODO aconway 2007-07-05: Failover will require replication of
+    // outgoing frames to session replicas.
+    
+}
+
+void SessionManager::handle(SessionFrame& frame) {
+    // Incoming from frame.
+    FrameHandler::Chains chains;
+    {
+        Mutex::ScopedLock l(lock);
+        SessionMap::iterator i = sessions.find(frame.uuid);
+        if (i == sessions.end()) {
+            QPID_LOG(trace, "Non-local frame cluster: " << frame.frame);
+            chains = nonLocal;
+        }
+        else {
+            QPID_LOG(trace, "Local frame from cluster: " << frame.frame);
+            chains = i->second;
+        }
+    }
+    FrameHandler::Chain chain =
+        chain = frame.isIncoming ? chains.in : chains.out;
+    // TODO aconway 2007-07-11: Should this be assert(chain)
+    if (chain)
+        chain->handle(frame.frame);
+
+    // TODO aconway 2007-07-05: Here's where we should unblock frame
+    // dispatch for the channel.
+}
+
+}} // namespace qpid::cluster