Refactor the examples after move from FairRoot

examples/multiple-transports/Sink.cxx

@@ -0,0 +1,80 @@
+/********************************************************************************
+ *    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+/**
+ * Sink.cxx
+ *
+ * @since 2014-10-10
+ * @author A. Rybalchenko
+ */
+
+#include "Sink.h"
+
+using namespace std;
+
+namespace example_multiple_transports
+{
+
+Sink::Sink()
+    : fMaxIterations(0)
+    , fNumIterations1(0)
+    , fNumIterations2(0)
+    , fReceived1(false)
+    , fReceived2(false)
+{
+    // register a handler for data arriving on "data" channel
+    OnData("data1", &Sink::HandleData1);
+    OnData("data2", &Sink::HandleData2);
+}
+
+void Sink::InitTask()
+{
+    fMaxIterations = fConfig->GetValue<uint64_t>("max-iterations");
+}
+
+// handler is called whenever a message arrives on "data", with a reference to the message and a sub-channel index (here 0)
+bool Sink::HandleData1(FairMQMessagePtr& /*msg*/, int /*index*/)
+{
+    fNumIterations1++;
+    // Creates a message using the transport of channel ack
+    FairMQMessagePtr ack(NewMessageFor("ack", 0));
+    if (Send(ack, "ack") < 0)
+    {
+        return false;
+    }
+
+    // return true if want to be called again (otherwise go to IDLE state)
+    return CheckIterations();
+}
+
+// handler is called whenever a message arrives on "data", with a reference to the message and a sub-channel index (here 0)
+bool Sink::HandleData2(FairMQMessagePtr& /*msg*/, int /*index*/)
+{
+    fNumIterations2++;
+    // return true if want to be called again (otherwise go to IDLE state)
+    return CheckIterations();
+}
+
+bool Sink::CheckIterations()
+{
+    if (fMaxIterations > 0)
+    {
+        if (fNumIterations1 >= fMaxIterations && fNumIterations2 >= fMaxIterations)
+        {
+            LOG(info) << "Configured maximum number of iterations reached & Received messages from both sources. Leaving RUNNING state.";
+            return false;
+        }
+    }
+
+    return true;
+}
+
+Sink::~Sink()
+{
+}
+
+} // namespace example_multiple_transports