inline_szin_read_obj.cc

Go to the documentation of this file.

/*! \file
 * \brief Inline task to read an object from a named buffer
 *
 * Named object writing
 */
 
#include "meas/inline/abs_inline_measurement_factory.h"
#include "meas/inline/io/named_objmap.h"
#include "meas/inline/io/inline_szin_read_obj.h"
#include "meas/inline/io/szin_read_obj_funcmap.h"
 
namespace Chroma 
{ 
  namespace InlineSZINReadNamedObjEnv 
  { 
    namespace
    {
      AbsInlineMeasurement* createMeasurement(XMLReader& xml_in, 
                                              const std::string& path) 
      {
        return new InlineMeas(Params(xml_in, path));
      }
 
      //! Local registration flag
      bool registered = false;
 
      const std::string name = "SZIN_READ_NAMED_OBJECT";
    }
 
    //! Register all the factories
    bool registerAll() 
    {
      bool success = true; 
      if (! registered)
      {
        // Datatype reader
        success &= SZINReadObjCallMapEnv::registerAll();
 
        // Inline measurement
        success &= TheInlineMeasurementFactory::Instance().registerObject(name, createMeasurement);
 
        registered = true;
      }
      return success;
    }
 
 
    //! Object buffer
    void read(XMLReader& xml, const std::string& path, Params::NamedObject_t& input)
    {
      XMLReader inputtop(xml, path);
 
      read(inputtop, "object_id", input.object_id);
      read(inputtop, "object_type", input.object_type);
    }
 
    //! File output
    void read(XMLReader& xml, const std::string& path, Params::File_t& input)
    {
      XMLReader inputtop(xml, path);
 
      read(inputtop, "file_name", input.file_name);
    }
 
 
    // Param stuff
    Params::Params() { frequency = 0; }
 
    Params::Params(XMLReader& xml_in, const std::string& path) 
    {
      try 
      {
        XMLReader paramtop(xml_in, path);
 
        if (paramtop.count("Frequency") == 1)
          read(paramtop, "Frequency", frequency);
        else
          frequency = 1;
 
        // Parameters for source construction
        read(paramtop, "NamedObject", named_obj);
 
        // Read in the destination
        read(paramtop, "File", file);
      }
      catch(const std::string& e) 
      {
        QDPIO::cerr << __func__ << ": caught Exception reading XML: " << e << std::endl;
        QDP_abort(1);
      }
    }
 
 
    void 
    InlineMeas::operator()(unsigned long update_no,
                           XMLWriter& xml_out) 
    {
      START_CODE();
 
      push(xml_out, "szin_read_named_obj");
      write(xml_out, "update_no", update_no);
 
      QDPIO::cout << name << ": object reader" << std::endl;
      StopWatch swatch;
 
      // Read the object
      // ONLY SZIN output format is supported in this task
      // Other tasks could support other disk formats
      QDPIO::cout << "Attempt to read object name = " << params.named_obj.object_id << std::endl;
      QDPIO::cout << "Attempt to read file name = " << params.file.file_name << std::endl;
      write(xml_out, "object_id", params.named_obj.object_id);
      try
      {
        swatch.reset();
 
//      // Read the object
//      TheSZINReadObjFuncMap::Instance().dump();
 
        // Read the object
        swatch.start();
        SZINReadObjCallMapEnv::TheSZINReadObjFuncMap::Instance().callFunction(params.named_obj.object_type,
                                                                              params.named_obj.object_id,
                                                                              params.file.file_name);
        swatch.stop();
 
        QDPIO::cout << "SZIN Object successfully read: time= " 
                    << swatch.getTimeInSeconds() 
                    << " secs" << std::endl;
      }
      catch( std::bad_cast ) 
      {
        QDPIO::cerr << name << ": cast error" 
                    << std::endl;
        QDP_abort(1);
      }
      catch (const std::string& e) 
      {
        QDPIO::cerr << name << ": error message: " << e 
                    << std::endl;
        QDP_abort(1);
      }
    
      QDPIO::cout << name << ": ran successfully" << std::endl;
 
      pop(xml_out);  // read_named_obj
 
      END_CODE();
    } 
 
  }
 
}