Esempio n. 1
0
void Cask::CdapOdbc::DataReader::fetchWVarchar(const wchar_t* str, const ColumnBinding& binding) {
  assert(binding.getTargetType() == SQL_WCHAR || binding.getTargetType() == SQL_DEFAULT);
  if (str) {
    std::wstring uniStr = str;
    size_t maxLength = static_cast<size_t>(binding.getBufferLength()) - 1;
    size_t size = (uniStr.size() < maxLength) ? uniStr.size() : maxLength;
    if (binding.getTargetValuePtr()) {
      wchar_t* outString = static_cast<wchar_t*>(binding.getTargetValuePtr());
      auto it = stdext::make_checked_array_iterator<wchar_t*>(outString, size);
      std::copy(uniStr.begin(), uniStr.begin() + size, it);
      outString[size] = 0;
    }

    if (binding.getStrLenOrInd()) {
      if (size <= maxLength) {
        *binding.getStrLenOrInd() = size;
      } else {
        *binding.getStrLenOrInd() = SQL_NO_TOTAL;
      }
    }
  } else {
    if (binding.getTargetValuePtr() && binding.getBufferLength() > 0) {
      wchar_t* outString = static_cast<wchar_t*>(binding.getTargetValuePtr());
      outString[0] = 0;
    }

    if (binding.getStrLenOrInd()) {
      *binding.getStrLenOrInd() = SQL_NULL_DATA;
    }
  }
}
Esempio n. 2
0
void Cask::CdapOdbc::DataReader::fetchValue(const web::json::value& value, const ColumnBinding& binding) {
  std::wstring strValue;
  SQLDOUBLE dblValue = NAN;
  switch (binding.getTargetType()) {
    case SQL_CHAR:
      strValue = to_wstring(value);
      this->fetchVarchar(strValue.c_str(), binding);
      break;
    case SQL_WCHAR:
      strValue = to_wstring(value);
      this->fetchWVarchar(strValue.c_str(), binding);
      break;
    case SQL_DOUBLE:
      if (value.is_string()) {
        dblValue = std::wcstod(value.as_string().c_str(), nullptr);
      } else if (value.is_integer()) {
        dblValue = value.as_integer();
      } else if (value.is_double()) {
        dblValue = value.as_double();
      } else if (value.is_number()) {
        dblValue = value.as_number().to_double();
      } else if (value.is_boolean()) {
        dblValue = value.as_bool() ? 1.0 : 0.0;
      }

      this->fetchDouble(dblValue, binding);
      break;
  }
}
Esempio n. 3
0
void Cask::CdapOdbc::DataReader::fetchInt(SQLINTEGER value, const ColumnBinding& binding) {
  assert(binding.getTargetType() == SQL_C_SLONG || binding.getTargetType() == SQL_DEFAULT);
  *(reinterpret_cast<SQLINTEGER*>(binding.getTargetValuePtr())) = value;
}
Esempio n. 4
0
void Cask::CdapOdbc::DataReader::fetchDouble(SQLDOUBLE value, const ColumnBinding& binding) {
  assert(binding.getTargetType() == SQL_DOUBLE || binding.getTargetType() == SQL_DEFAULT);
  *(reinterpret_cast<SQLDOUBLE*>(binding.getTargetValuePtr())) = value;
}
Esempio n. 5
0
void Cask::CdapOdbc::DataReader::fetchSmallint(SQLSMALLINT value, const ColumnBinding& binding) {
  assert(binding.getTargetType() == SQL_C_SSHORT || binding.getTargetType() == SQL_DEFAULT);
  *(reinterpret_cast<SQLSMALLINT*>(binding.getTargetValuePtr())) = value;
}