AvpData.hpp

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// ANNA - Anna is Not Nothingness Anymore                                                         //
//                                                                                                //
// (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
//                                                                                                //
// See project site at http://redmine.teslayout.com/projects/anna-suite                           //
// See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //


#ifndef anna_diameter_codec_basetypes_AvpData_hpp
#define anna_diameter_codec_basetypes_AvpData_hpp


#include <anna/core/RuntimeException.hpp>
#include <anna/core/DataBlock.hpp>
#include <anna/core/functions.hpp>

#include <anna/core/functions.hpp>

// STL
#include <string>


namespace anna {

namespace diameter {

namespace codec {

namespace basetypes {

class AvpData {

  virtual void codeBasic(char* buffer, int &size) noexcept(false) = 0;

  virtual void updateBasic() noexcept(false) {;}

  virtual void setPrintableString(const char * printableString) noexcept(false) = 0;


protected:

  std::string assertPrintable(const char* buffer, const int size) const noexcept(false) {
    std::string result;

    if(size == 0) return result;

    bool printable;
    result = anna::functions::asAsciiString(buffer, size, printable);

    if(!printable) {
      std::string ex = getFormatName();
      ex += "::assertPrintable | Non-printable data provided";
      throw anna::RuntimeException(ex, ANNA_FILE_LOCATION);
    }

    return result;
  }

public:

  AvpData() {};


  // gets

  virtual std::string getFormatName() const  = 0;

  virtual int getSize() const  = 0;


  // helpers

  void code(char* buffer, int &size) noexcept(false) {
    codeBasic(buffer, size);
  }


  virtual std::string asPrintableString() noexcept(false) {
    int size = getSize();
    char buffer[size];
    code(buffer, size);
    return (assertPrintable(buffer, size));
  }

  std::string asDataBlockString() noexcept(false) {
    int size = getSize();
    char buffer[size];
    code(buffer, size);
    anna::DataBlock db(buffer, size);
    return(db.asString());
  }

  virtual std::string asString() noexcept(false) {
    return(asDataBlockString());
  }

  std::string asHexString() noexcept(false) {
    int size = getSize();
    char buffer[size];
    code(buffer, size);
    anna::DataBlock db(buffer, size);
    return anna::functions::asHexString(db);
  }


  // sets

  virtual void decode(const char* buffer, const int size) noexcept(false) = 0;

  void fromPrintableString(const char * printableString) noexcept(false) {
    if(!printableString) {
      std::string ex = getFormatName();
      ex += "::fromPrintableString | Null printableString provided";
      throw anna::RuntimeException(ex, ANNA_FILE_LOCATION);
    }

    /*std::string dummy =*/assertPrintable(printableString, strlen(printableString));
    setPrintableString(printableString);
  }

  void fromHexString(const std::string& hexString) noexcept(false) {
    anna::DataBlock db(true);
    anna::functions::fromHexString(hexString, db);
    decode(db.getData(), db.getSize());
  }
};

}
}
}
}


#endif