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/*
* Copyright (C) 2008, Nokia <ivan.frade@nokia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/mman.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <gio/gio.h>
#include <libtracker-common/tracker-file-utils.h>
#include <libtracker-extract/tracker-extract.h>
#include "tracker-main.h"
#include "tracker-read.h"
static gchar *
get_file_content (GFile *file,
gsize n_bytes)
{
gchar *text, *uri, *path;
int fd;
/* If no content requested, return */
if (n_bytes == 0) {
return NULL;
}
uri = g_file_get_uri (file);
/* Get filename from URI */
path = g_file_get_path (file);
fd = tracker_file_open_fd (path);
if (fd == -1) {
g_message ("Could not open file '%s': %s",
uri,
g_strerror (errno));
g_free (uri);
g_free (path);
return NULL;
}
g_debug (" Starting to read '%s' up to %" G_GSIZE_FORMAT " bytes...",
uri, n_bytes);
/* Read up to n_bytes from stream. Output is always, always valid UTF-8,
* this function closes the FD.
*/
text = tracker_read_text_from_fd (fd, n_bytes);
g_free (uri);
g_free (path);
return text;
}
G_MODULE_EXPORT gboolean
tracker_extract_module_init (TrackerModuleThreadAwareness *thread_awareness_ret,
GError **error)
{
*thread_awareness_ret = TRACKER_MODULE_MULTI_THREAD;
return TRUE;
}
G_MODULE_EXPORT gboolean
tracker_extract_get_metadata (TrackerExtractInfo *info)
{
TrackerSparqlBuilder *metadata;
TrackerConfig *config;
gchar *content;
config = tracker_main_get_config ();
metadata = tracker_extract_info_get_metadata_builder (info);
content = get_file_content (tracker_extract_info_get_file (info),
tracker_config_get_max_bytes (config));
tracker_sparql_builder_predicate (metadata, "a");
tracker_sparql_builder_object (metadata, "nfo:PlainTextDocument");
if (content) {
tracker_sparql_builder_predicate (metadata, "nie:plainTextContent");
tracker_sparql_builder_object_unvalidated (metadata, content);
g_free (content);
}
return TRUE;
}
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