Start to develop the Beam Background generator.

Generator/CMakeLists.txt

@@ -15,7 +15,7 @@ gaudi_add_module(GenAlgo
                          src/SLCIORdr.cpp
                          src/HepMCRdr.cpp
                          src/GtGunTool.cpp
-
+                         src/GtBeamBackgroundTool.cpp
                  LINK ${ROOT_LIBRARIES}
                       k4FWCore::k4FWCore 
                       Gaudi::GaudiAlgLib

Generator/src/GtBeamBackgroundTool.cpp

+#include "GtBeamBackgroundTool.h"
+
+DECLARE_COMPONENT(GtBeamBackgroundTool)
+
+StatusCode GtBeamBackgroundTool::initialize() {
+    // check the consistency of the properties
+
+    // create the instances of the background parsers
+
+    return StatusCode::SUCCESS;
+}
+
+StatusCode GtBeamBackgroundTool::finalize() {
+    return StatusCode::SUCCESS;
+}
+
+
+bool GtBeamBackgroundTool::mutate(MyHepMC::GenEvent& event) {
+    return true;
+}
+
+bool GtBeamBackgroundTool::finish() {
+    return true;
+}
+
+bool GtBeamBackgroundTool::configure_gentool() {
+
+    return true;
+}

Generator/src/GtBeamBackgroundTool.h

+#ifndef GtBeamBackgroundTool_h
+#define GtBeamBackgroundTool_h
+
+/*
+ * Description:
+ *   This tool is used to simulation the non-collision beam backgrounds.
+ *
+ *   The properties:
+ *     - InputFileMap
+ *         this is a map to store the label and the input filename
+ *     - InputFormatMap
+ *         this is a map to store the label and the input format
+ *     - InputRateMap
+ *         this is a map to store the label and the rate
+ * 
+ *     Note: the label (key) should be consistent
+ *
+ * About the design:
+ *   IBeamBackgroundFileParser is the interface to load the next event.
+ *   Different file formats should be implemented in the corresponding parsers. 
+ *   The format will be used to create the corresponding instance.
+ *
+ * Author:
+ *   Tao Lin <lintao AT ihep.ac.cn>
+ */
+
+#include <GaudiKernel/AlgTool.h>
+#include <Gaudi/Property.h>
+#include "IGenTool.h"
+
+#include <vector>
+#include <map>
+
+class IBeamBackgroundFileParser;
+
+class GtBeamBackgroundTool: public extends<AlgTool, IGenTool> {
+public:
+    using extends::extends;
+
+    // Overriding initialize and finalize
+    StatusCode initialize() override;
+    StatusCode finalize() override;
+
+    // IGenTool
+    bool mutate(MyHepMC::GenEvent& event) override;
+    bool finish() override;
+    bool configure_gentool() override;
+
+private:
+    Gaudi::Property<std::map<std::string, std::string>> m_inputmaps{this, "InputFileMap"};
+    Gaudi::Property<std::map<std::string, std::string>> m_fomatmaps{this, "InputFormatMap"};
+    Gaudi::Property<std::map<std::string, double>>      m_ratemaps {this, "InputRateMap"};
+
+private:
+    std::map<std::string, std::shared_ptr<IBeamBackgroundFileParser>> m_beaminputs;
+
+};
+
+#endif