Creating a branch for experimenting with some ideas for JMS client.rajith_jms_client

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/rajith_jms_client@1128369 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 85 insertions, 0 deletions

diff --git a/qpid/cpp/src/qpid/messaging/FailoverUpdates.cpp b/qpid/cpp/src/qpid/messaging/FailoverUpdates.cpp
new file mode 100644
index 0000000000..4f2fcf2e82
--- /dev/null
+++ b/qpid/cpp/src/qpid/messaging/FailoverUpdates.cpp
@@ -0,0 +1,85 @@
+/*
+ *
+ * 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/messaging/FailoverUpdates.h"
+#include "qpid/messaging/Connection.h"
+#include "qpid/messaging/Message.h"
+#include "qpid/messaging/Receiver.h"
+#include "qpid/messaging/Session.h"
+#include "qpid/sys/Runnable.h"
+#include "qpid/sys/Thread.h"
+#include "qpid/log/Statement.h"
+#include "qpid/Exception.h"
+#include "qpid/Url.h"
+#include "qpid/framing/Uuid.h"
+#include <vector>
+
+namespace qpid {
+namespace messaging {
+using framing::Uuid;
+
+struct FailoverUpdatesImpl : qpid::sys::Runnable
+{
+    Connection connection;
+    Session session;
+    Receiver receiver;
+    qpid::sys::Thread thread;
+
+    FailoverUpdatesImpl(Connection& c) : connection(c)
+    {
+        session = connection.createSession("failover-updates."+Uuid(true).str());
+        receiver = session.createReceiver("amq.failover");
+        thread = qpid::sys::Thread(*this);
+    }
+
+    ~FailoverUpdatesImpl() {
+        try {
+            session.close();
+        } catch(...) {}         // Squash exceptions in a destructor.
+        thread.join();
+    }
+
+    void run()
+    {
+        try {
+            Message message;
+            while (receiver.fetch(message)) {
+                connection.setOption("reconnect-urls", message.getProperties()["amq.failover"]);
+                QPID_LOG(debug, "Set reconnect-urls to " << message.getProperties()["amq.failover"]);
+                session.acknowledge();
+            }
+        }
+        catch (const ClosedException&) {}
+        catch (const qpid::TransportFailure& e) {
+            QPID_LOG(warning, "Failover updates stopped on loss of connection. " << e.what());
+        }
+        catch (const std::exception& e) {
+            QPID_LOG(warning, "Failover updates stopped due to exception: " << e.what());
+        }
+    }
+};
+
+FailoverUpdates::FailoverUpdates(Connection& connection) : impl(new FailoverUpdatesImpl(connection)) {}
+FailoverUpdates::~FailoverUpdates() { if (impl) { delete impl; } }
+FailoverUpdates::FailoverUpdates(const FailoverUpdates&) : impl(0) {}
+FailoverUpdates& FailoverUpdates::operator=(const FailoverUpdates&) { return *this; }
+
+
+}} // namespace qpid::messaging