1 files changed, 185 insertions, 0 deletions
diff --git a/cpp/src/qpid/client/FailoverConnection.cpp b/cpp/src/qpid/client/FailoverConnection.cpp
new file mode 100644
index 0000000000..cac680295d
--- /dev/null
+++ b/cpp/src/qpid/client/FailoverConnection.cpp
@@ -0,0 +1,185 @@
+/*
+ *
+ * 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/log/Statement.h"
+#include "qpid/client/FailoverConnection.h"
+#include "qpid/client/ConnectionSettings.h"
+
+#include <iostream>
+#include <fstream>
+
+using namespace std;
+
+
+namespace qpid {
+namespace client {
+
+
+FailoverConnection::FailoverConnection ( ) :
+    name(),
+    failoverCompleteTime(0)
+{
+    connection.registerFailureCallback
+        ( boost::bind(&FailoverConnection::failover, this));
+}
+
+FailoverConnection::~FailoverConnection () {}
+
+void 
+FailoverConnection::open ( const std::string& host,
+                           int   port,
+                           const std::string& uid,
+                           const std::string& pwd,
+                           const std::string& virtualhost, 
+                           uint16_t maxFrameSize
+)
+{
+    ConnectionSettings settings;
+
+    settings.host         = host;
+    settings.port         = port;
+    settings.username     = uid;
+    settings.username     = uid;
+    settings.password     = pwd;
+    settings.virtualhost  = virtualhost;
+    settings.maxFrameSize = maxFrameSize;
+    settings.host         = host;
+
+    open ( settings );
+}
+
+
+void
+FailoverConnection::open ( ConnectionSettings & settings )
+{
+    connection.open ( settings );
+}
+
+
+
+void 
+FailoverConnection::close ( )
+{
+    connection.close();
+}
+
+
+
+FailoverSession *
+FailoverConnection::newSession ( const std::string& /* name */ )
+{
+    FailoverSession * fs = new FailoverSession;
+    sessions.push_back ( fs );
+    fs->session = connection.newSession();
+    return fs;
+}
+
+
+
+void
+FailoverConnection::resume ( FailoverSession & failoverSession )
+{
+    connection.resume ( failoverSession.session );
+}
+
+
+bool 
+FailoverConnection::isOpen() const
+{
+    return connection.isOpen();
+}
+
+
+void 
+FailoverConnection::getKnownBrokers ( std::vector<std::string> & /*v*/ )
+{
+}
+
+
+void 
+FailoverConnection::registerFailureCallback ( boost::function<void ()> /*fn*/ )
+{
+}
+
+void 
+FailoverConnection::failover ( )
+{
+    std::vector<Url> knownBrokers = connection.getKnownBrokers();
+    if (knownBrokers.empty())
+         throw Exception(QPID_MSG("FailoverConnection::failover " << name << " no known brokers."));
+
+    Connection newConnection;
+    for (std::vector<Url>::iterator i = knownBrokers.begin(); i != knownBrokers.end(); ++i) {
+        try {
+            newConnection.open(*i);
+            break;
+        }
+        catch (const std::exception& e) {
+            QPID_LOG(info, "Could not fail-over to " << *i << ": " << e.what());
+            if ((i + 1) == knownBrokers.end())
+                throw;
+        }
+    }
+  
+    /*
+     * We have a valid new connection.  Tell all the sessions
+     * (and, through them, their SessionManagers and whatever else)
+     * that we are about to failover to this new Connection.
+     */
+    // FIXME mgoulish -- get rid of two-passes here.
+    std::vector<FailoverSession *>::iterator sessions_iterator;
+
+    for ( sessions_iterator = sessions.begin();
+          sessions_iterator < sessions.end();
+          ++ sessions_iterator
+    )
+    {
+        FailoverSession * fs = * sessions_iterator;
+        fs->prepareForFailover ( newConnection );
+    }
+
+    /*
+     * Tell all sessions to actually failover to the new connection.
+     */
+    for ( sessions_iterator = sessions.begin();
+          sessions_iterator < sessions.end();
+          ++ sessions_iterator
+    )
+    {
+        FailoverSession * fs = * sessions_iterator;
+        fs->failover ( );
+    }
+
+    connection = newConnection;
+
+    // FIXME aconway 2008-10-09: use sys/Time.h functions.
+    if ( failoverCompleteTime )
+    {
+        gettimeofday ( failoverCompleteTime, 0 );
+    }
+}
+
+
+
+
+}} // namespace qpid::client