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path: root/utils/services/ttl2graphviz.c
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/*
 * Copyright (C) 2009, Nokia <ivan.frade@nokia.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#include <glib.h>
#include <gio/gio.h>
#include <string.h>
#include <stdio.h>
#include "ttl_loader.h"
#include "ttl_model.h"
#include "ttl_graphviz.h"

static gchar *desc_file = NULL;
static gchar *output_file = NULL;

static GOptionEntry   entries[] = {
	{ "desc", 'd', 0, G_OPTION_ARG_FILENAME, &desc_file,
	  "TTL file with the ontology description and documentation",
	  NULL
	},
	{ "output", 'o', 0, G_OPTION_ARG_FILENAME, &output_file,
	  "File to write the output (default stdout)",
	  NULL
	},
	{ NULL }
};

gint
main (gint argc, gchar **argv)
{
	GOptionContext *context;
	Ontology *ontology = NULL;
	OntologyDescription *description = NULL;
	gchar *ttl_file = NULL;
	gchar *dirname = NULL;
	FILE *f = NULL;

	g_type_init ();

	/* Translators: this messagge will apper immediately after the  */
	/* usage string - Usage: COMMAND [OPTION]... <THIS_MESSAGE>     */
	context = g_option_context_new ("- Generates graphviz for a TTL file");

	/* Translators: this message will appear after the usage string */
	/* and before the list of options.                              */
	g_option_context_add_main_entries (context, entries, NULL);
	g_option_context_parse (context, &argc, &argv, NULL);

	if (!desc_file) {
		gchar *help;

		g_printerr ("%s\n\n",
		            "Description file is mandatory");

		help = g_option_context_get_help (context, TRUE, NULL);
		g_option_context_free (context);
		g_printerr ("%s", help);
		g_free (help);

		return -1;
	}

	if (output_file) {
		f = fopen (output_file, "w");
	} else {
		f = stdout;
	}
	g_assert (f != NULL);

	description = ttl_loader_load_description (desc_file);

	dirname = g_path_get_dirname (desc_file);
	ttl_file = g_build_filename (dirname,
	                             description->relativePath,
	                             NULL);

	ontology = ttl_loader_load_ontology (ttl_file);
	g_free (ttl_file);
	g_free (dirname);

	ttl_graphviz_print (description, ontology, f);

	ttl_loader_free_ontology (ontology);
	ttl_loader_free_description (description);

	g_option_context_free (context);

	fclose (f);

	return 0;
}