QPID-4368: Allow pluggable protocol implementations

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1400177 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 69 insertions, 0 deletions

diff --git a/cpp/src/qpid/broker/Protocol.cpp b/cpp/src/qpid/broker/Protocol.cpp
new file mode 100644
index 0000000000..90d4d7833f
--- /dev/null
+++ b/cpp/src/qpid/broker/Protocol.cpp
@@ -0,0 +1,69 @@
+/*
+ *
+ * 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 "Protocol.h"
+#include "qpid/sys/ConnectionCodec.h"
+#include "qpid/broker/amqp_0_10/MessageTransfer.h"
+#include "qpid/log/Statement.h"
+
+namespace qpid {
+namespace broker {
+
+qpid::sys::ConnectionCodec* ProtocolRegistry::create(const qpid::framing::ProtocolVersion& v, qpid::sys::OutputControl& o, const std::string& id, const qpid::sys::SecuritySettings& s)
+{
+    qpid::sys::ConnectionCodec* codec = 0;
+    for (Protocols::const_iterator i = protocols.begin(); !codec && i != protocols.end(); ++i) {
+        codec = i->second->create(v, o, id, s);
+    }
+    return codec;
+}
+boost::intrusive_ptr<const qpid::broker::amqp_0_10::MessageTransfer> ProtocolRegistry::translate(const Message& m)
+{
+    boost::intrusive_ptr<const qpid::broker::amqp_0_10::MessageTransfer> transfer;
+    const qpid::broker::amqp_0_10::MessageTransfer* ptr = dynamic_cast<const qpid::broker::amqp_0_10::MessageTransfer*>(&m.getEncoding());
+    if (ptr) transfer = boost::intrusive_ptr<const qpid::broker::amqp_0_10::MessageTransfer>(ptr);
+    for (Protocols::const_iterator i = protocols.begin(); !transfer && i != protocols.end(); ++i) {
+        transfer = i->second->translate(m);
+    }
+    return transfer;
+}
+boost::shared_ptr<RecoverableMessage> ProtocolRegistry::recover(qpid::framing::Buffer& b)
+{
+    boost::shared_ptr<RecoverableMessage> msg;
+    for (Protocols::const_iterator i = protocols.begin(); !msg && i != protocols.end(); ++i) {
+        msg = i->second->recover(b);
+    }
+    return msg;
+}
+
+ProtocolRegistry::~ProtocolRegistry()
+{
+    for (Protocols::const_iterator i = protocols.begin(); i != protocols.end(); ++i) {
+        delete i->second;
+    }
+    protocols.clear();
+}
+void ProtocolRegistry::add(const std::string& key, Protocol* protocol)
+{
+    protocols[key] = protocol;
+    QPID_LOG(info, "Loaded protocol " << key);
+}
+
+}} // namespace qpid::broker