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/* -*- Mode: c; c-basic-offset: 2 -*-
*
* srxwrite.c - SPARQL Results Format writing test program
*
* Copyright (C) 2010, David Beckett http://www.dajobe.org/
*
* This package is Free Software and part of Redland http://librdf.org/
*
* It is licensed under the following three licenses as alternatives:
* 1. GNU Lesser General Public License (LGPL) V2.1 or any newer version
* 2. GNU General Public License (GPL) V2 or any newer version
* 3. Apache License, V2.0 or any newer version
*
* You may not use this file except in compliance with at least one of
* the above three licenses.
*
* See LICENSE.html or LICENSE.txt at the top of this package for the
* complete terms and further detail along with the license texts for
* the licenses in COPYING.LIB, COPYING and LICENSE-2.0.txt respectively.
*
*
*/
#ifdef HAVE_CONFIG_H
#include <rasqal_config.h>
#endif
#ifdef WIN32
#include <win32_rasqal_config.h>
#endif
#include <stdio.h>
#include <string.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <raptor.h>
/* Rasqal includes */
#include <rasqal.h>
#ifdef RAPTOR_V2_AVAILABLE
#else
#define raptor_new_iostream_to_file_handle(world, fh) raptor_new_iostream_to_file_handle(fh)
#endif
static char *program = NULL;
int main(int argc, char *argv[]);
int
main(int argc, char *argv[])
{
int rc = 0;
raptor_iostream* iostr = NULL;
char* p;
raptor_uri* base_uri = NULL;
rasqal_query_results* results = NULL;
const char* write_formatter_name = NULL;
rasqal_query_results_formatter* write_formatter = NULL;
rasqal_world *world;
rasqal_variables_table* vars_table = NULL;
rasqal_row* row = NULL;
rasqal_literal* l = NULL;
#ifdef RAPTOR_V2_AVAILABLE
raptor_world *raptor_world_ptr;
#endif
program = argv[0];
if((p=strrchr(program, '/')))
program = p+1;
else if((p=strrchr(program, '\\')))
program = p+1;
argv[0] = program;
world = rasqal_new_world();
if(!world || rasqal_world_open(world)) {
fprintf(stderr, "%s: rasqal_world init failed\n", program);
return(1);
}
if(argc < 2 || argc > 2) {
fprintf(stderr, "USAGE: %s [<write formatter>]\n",
program);
rc = 1;
goto tidy;
}
if(argc > 1) {
if(strcmp(argv[1], "-"))
write_formatter_name = argv[1];
}
#ifdef RAPTOR_V2_AVAILABLE
raptor_world_ptr = rasqal_world_get_raptor(world);
#endif
vars_table = rasqal_new_variables_table(world);
if(!vars_table) {
fprintf(stderr, "%s: Failed to create variables table\n", program);
rc = 1;
goto tidy;
}
#define NUMBER_VARIABLES 2
rasqal_variables_table_add2(vars_table, RASQAL_VARIABLE_TYPE_NORMAL,
(const unsigned char*)"a", 1, NULL);
rasqal_variables_table_add2(vars_table, RASQAL_VARIABLE_TYPE_NORMAL,
(const unsigned char*)"b", 1, NULL);
results = rasqal_new_query_results2(world, NULL,
RASQAL_QUERY_RESULTS_BINDINGS);
if(!results) {
fprintf(stderr, "%s: Failed to create query results\n", program);
rc = 1;
goto tidy;
}
row = rasqal_new_row_for_size(world, NUMBER_VARIABLES);
l = rasqal_new_boolean_literal(world, 1);
if(!l) {
fprintf(stderr, "%s: Failed to create boolean literal\n", program);
rc = 1;
goto tidy;
}
rasqal_row_set_value_at(row, 0, l);
rasqal_free_literal(l); l = NULL;
l = rasqal_new_integer_literal(world, RASQAL_LITERAL_INTEGER, 42);
if(!l) {
fprintf(stderr, "%s: Failed to integer boolean literal\n", program);
rc = 1;
goto tidy;
}
rasqal_row_set_value_at(row, 1, l);
rasqal_free_literal(l); l = NULL;
rasqal_query_results_add_row(results, row);
row = NULL; /* now owned by results */
write_formatter = rasqal_new_query_results_formatter(world,
write_formatter_name,
NULL, NULL);
if(!write_formatter) {
fprintf(stderr, "%s: Failed to create query results write formatter '%s'\n",
program, write_formatter_name);
rc = 1;
goto tidy;
}
iostr = raptor_new_iostream_to_file_handle(raptor_world_ptr, stdout);
if(!iostr) {
fprintf(stderr, "%s: Creating output iostream failed\n", program);
} else {
rasqal_query_results_formatter_write(iostr, write_formatter,
results, base_uri);
raptor_free_iostream(iostr);
}
iostr = NULL;
tidy:
if(l)
rasqal_free_literal(l);
if(row)
rasqal_free_row(row);
if(write_formatter)
rasqal_free_query_results_formatter(write_formatter);
if(iostr)
raptor_free_iostream(iostr);
if(results)
rasqal_free_query_results(results);
if(vars_table)
rasqal_free_variables_table(vars_table);
if(base_uri)
raptor_free_uri(base_uri);
rasqal_free_world(world);
return (rc);
}
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