Esempi in C++ (Cpp) per rasqal_world_guess_query_results_format_name

Esempio n. 1

File: check_query.c Progetto: xoration/rasqal

static rasqal_query_results*
check_query_read_results(rasqal_world* world,
                         raptor_world* raptor_world_ptr,
                         rasqal_query_results_type results_type,
                         raptor_iostream* result_iostr,
                         const char* result_filename,
                         const char* result_format_name)
{
  rasqal_variables_table* vars_table = NULL;
  const char* format_name = NULL;
  rasqal_query_results_formatter* qrf = NULL;
  unsigned char *query_results_base_uri_string = NULL;
  raptor_uri* query_results_base_uri = NULL;
  rasqal_query_results* results = NULL;
  
  query_results_base_uri_string = raptor_uri_filename_to_uri_string(result_filename);
  
  query_results_base_uri = raptor_new_uri(raptor_world_ptr,
                                          query_results_base_uri_string);
  
  vars_table = rasqal_new_variables_table(world);
  results = rasqal_new_query_results(world, NULL, results_type, vars_table);
  rasqal_free_variables_table(vars_table); vars_table = NULL;
  
  if(!results) {
    fprintf(stderr, "%s: Failed to create query results\n", program);
    goto tidy_fail;
  }
  
  if(result_format_name) {
    /* FIXME validate result format name is legal query
     * results formatter name 
     */
    format_name = result_format_name;
  }
  
  if(!format_name)
    format_name = rasqal_world_guess_query_results_format_name(world,
                                                               NULL /* uri */,
                                                               NULL /* mime_type */,
                                                               NULL /*buffer */,
                                                               0,
                                                               (const unsigned char*)result_filename);
  
  qrf = rasqal_new_query_results_formatter(world, 
                                           format_name, 
                                           NULL /* mime type */,
                                           NULL /* uri */);
  if(!qrf)
    goto tidy_fail;
  
  if(rasqal_query_results_formatter_read(world, result_iostr, 
                                         qrf, results,
                                         query_results_base_uri))
  {
    fprintf(stderr, "%s: Failed to read query results from %s with format %s",
            program, result_filename, format_name);
    goto tidy_fail;
  }
  
  rasqal_free_query_results_formatter(qrf); qrf = NULL;
  
  return results;

  tidy_fail:
  if(vars_table)
    rasqal_free_variables_table(vars_table);
  if(results)
    rasqal_free_query_results(results);
  if(query_results_base_uri)
    raptor_free_uri(query_results_base_uri);

  return NULL;
}

Esempio n. 2

File: results.c Progetto: 0u812/rasqal

rasqal_query_results*
rasqal_cmdline_read_results(rasqal_world* world,
                            raptor_world* raptor_world_ptr,
                            rasqal_query_results_type results_type,
                            raptor_iostream* result_iostr,
                            const char* result_filename,
                            const char* result_format_name)
{
  rasqal_query_results_formatter* qrf = NULL;
  unsigned char *query_results_base_uri_string = NULL;
  raptor_uri* query_results_base_uri = NULL;
  rasqal_query_results* results = NULL;
  int rc;

  query_results_base_uri_string = raptor_uri_filename_to_uri_string(result_filename);

  query_results_base_uri = raptor_new_uri(raptor_world_ptr,
                                          query_results_base_uri_string);
  raptor_free_memory(query_results_base_uri_string);

  results = rasqal_new_query_results2(world, NULL, results_type);
  if(!results)
    goto tidy_fail;

  if(result_format_name) {
    /* check name */
    if(!rasqal_query_results_formats_check2(world, result_format_name,
                               NULL /* uri */,
                               NULL /* mime type */,
                               RASQAL_QUERY_RESULTS_FORMAT_FLAG_READER))
      return NULL;
  } else {
    /* or use default */
    result_format_name = rasqal_world_guess_query_results_format_name(world,
                               NULL /* uri */,
                               NULL /* mime_type */,
                               NULL /* buffer */,
                               0,
                               (const unsigned char*)result_filename);
  }

  qrf = rasqal_new_query_results_formatter(world,
                                           result_format_name,
                                           NULL /* mime type */,
                                           NULL /* uri */);
  if(!qrf)
    goto tidy_fail;

  rc = rasqal_query_results_formatter_read(world, result_iostr,
                                           qrf, results,
                                           query_results_base_uri);
  rasqal_free_query_results_formatter(qrf); qrf = NULL;
  raptor_free_uri(query_results_base_uri); query_results_base_uri = NULL;
  if(rc)
    goto tidy_fail;

  return results;

  tidy_fail:
  if(results)
    rasqal_free_query_results(results);
  if(query_results_base_uri)
    raptor_free_uri(query_results_base_uri);

  return NULL;
}