[tracker/direct-access: 90/121] tracker-tag: Use new libtracker-sparql API
- From: Jürg Billeter <juergbi src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [tracker/direct-access: 90/121] tracker-tag: Use new libtracker-sparql API
- Date: Thu, 22 Jul 2010 14:51:25 +0000 (UTC)
commit 939470e13a3f30824308df4ad0257e7e64ae0ccf
Author: Martyn Russell <martyn lanedo com>
Date: Wed Jul 21 14:50:37 2010 +0100
tracker-tag: Use new libtracker-sparql API
Currently, rewind seems to not work as expected, needs more testing
src/tracker-utils/tracker-tag.c | 451 +++++++++++++++++++++------------------
1 files changed, 240 insertions(+), 211 deletions(-)
---
diff --git a/src/tracker-utils/tracker-tag.c b/src/tracker-utils/tracker-tag.c
index 70a6ffb..ab16bcc 100644
--- a/src/tracker-utils/tracker-tag.c
+++ b/src/tracker-utils/tracker-tag.c
@@ -27,8 +27,7 @@
#include <glib/gi18n.h>
#include <gio/gio.h>
-#include <libtracker-client/tracker-client.h>
-#include <libtracker-common/tracker-common.h>
+#include <libtracker-sparql/tracker-sparql.h>
#define ABOUT \
"Tracker " PACKAGE_VERSION "\n"
@@ -269,12 +268,12 @@ get_uris (GStrv files)
return uris;
}
-static GPtrArray *
-get_file_urns (TrackerClient *client,
- GStrv uris,
- const gchar *tag)
+static TrackerSparqlCursor *
+get_file_urns (TrackerSparqlConnection *connection,
+ GStrv uris,
+ const gchar *tag)
{
- GPtrArray *results;
+ TrackerSparqlCursor *cursor;
gchar *query, *filter;
GError *error = NULL;
@@ -289,7 +288,7 @@ get_file_urns (TrackerClient *client,
tag ? "nao:hasTag ?t ; " : "",
filter);
- results = tracker_resources_sparql_query (client, query, &error);
+ cursor = tracker_sparql_connection_query (connection, query, NULL, &error);
g_free (query);
g_free (filter);
@@ -302,77 +301,51 @@ get_file_urns (TrackerClient *client,
return NULL;
}
- return results;
+ return cursor;
}
static GStrv
-result_to_strv (GPtrArray *result,
- gint n_col)
+result_to_strv (TrackerSparqlCursor *cursor,
+ gint n_col)
{
GStrv strv;
- gint i;
+ gint count, i;
- if (!result || result->len == 0) {
+ if (!cursor) {
return NULL;
}
- strv = g_new0 (gchar *, result->len + 1);
+ i = 0;
+ count = 0;
- for (i = 0; i < result->len; i++) {
- gchar **row;
+ /* Really no other option here, but we iterate the cursor
+ * first to get the length.
+ */
+ while (tracker_sparql_cursor_next (cursor, NULL, NULL)) {
+ count++;
+ }
+
+ strv = g_new0 (gchar *, count + 1);
- row = g_ptr_array_index (result, i);
- strv[i] = g_strdup (row[n_col]);
+ tracker_sparql_cursor_rewind (cursor);
+
+ while (tracker_sparql_cursor_next (cursor, NULL, NULL)) {
+ const gchar *str;
+
+ str = tracker_sparql_cursor_get_string (cursor, n_col, NULL);
+ strv[i++] = g_strdup (str);
}
return strv;
}
static void
-get_all_tags_foreach (gpointer value,
- gpointer user_data)
+get_all_tags_show_tag_id (TrackerSparqlConnection *connection,
+ const gchar *id)
{
- TrackerClient *client;
+ TrackerSparqlCursor *cursor;
GError *error = NULL;
- GPtrArray *results;
- GStrv data;
- const gchar *id;
- const gchar *tag;
- const gchar *description;
- gchar *query;
- gint files, i;
-
- data = value;
- client = user_data;
-
- files = atoi (data[3]);
- id = data[0];
- tag = data[1];
- description = data[2];
-
- if (description && *description == '\0') {
- description = NULL;
- }
-
- g_print (" %s %s%s%s\n",
- tag,
- description ? "(" : "",
- description ? description : "",
- description ? ")" : "");
-
- g_print (" %s\n", id);
-
- g_print (" ");
- g_print (g_dngettext (NULL,
- "%d file",
- "%d files",
- files),
- files);
- g_print ("\n");
-
- if (!client || files < 1) {
- return;
- }
+ gchar *query;
/* Get files associated */
query = g_strdup_printf ("SELECT ?uri WHERE {"
@@ -382,38 +355,40 @@ get_all_tags_foreach (gpointer value,
"}",
id);
- results = tracker_resources_sparql_query (client, query, &error);
+ cursor = tracker_sparql_connection_query (connection, query, NULL, &error);
g_free (query);
if (error) {
- g_print (" %s, %s\n",
- _("Could not get files related to tag"),
- error->message);
+ g_printerr (" %s, %s\n",
+ _("Could not get files related to tag"),
+ error->message);
g_error_free (error);
return;
}
- for (i = 0; i < results->len; i++) {
- GStrv files;
+ if (!cursor) {
+ g_print (" %s\n", _("None"));
+ return;
+ }
+
- files = g_ptr_array_index (results, i);
- g_print (" %s\n", files[0]);
- g_strfreev (files);
+ while (tracker_sparql_cursor_next (cursor, NULL, NULL)) {
+ g_print (" %s\n", tracker_sparql_cursor_get_string (cursor, 0, NULL));
}
- g_ptr_array_free (results, TRUE);
+ g_object_unref (cursor);
}
static gboolean
-get_all_tags (TrackerClient *client,
- GStrv files,
- gint search_offset,
- gint search_limit,
- gboolean use_or_operator,
- gboolean show_files)
+get_all_tags (TrackerSparqlConnection *connection,
+ GStrv files,
+ gint search_offset,
+ gint search_limit,
+ gboolean use_or_operator,
+ gboolean show_files)
{
+ TrackerSparqlCursor *cursor;
GError *error = NULL;
- GPtrArray *results;
gchar *fts;
gchar *query;
@@ -455,7 +430,7 @@ get_all_tags (TrackerClient *client,
g_free (fts);
- results = tracker_resources_sparql_query (client, query, &error);
+ cursor = tracker_sparql_connection_query (connection, query, NULL, &error);
g_free (query);
if (error) {
@@ -467,55 +442,97 @@ get_all_tags (TrackerClient *client,
return FALSE;
}
- if (!results) {
+ if (!cursor) {
g_print ("%s\n",
_("No tags were found"));
} else {
- g_print (g_dngettext (NULL,
- "Tag: %d (shown by name)",
- "Tags: %d (shown by name)",
- results->len),
- results->len);
- g_print ("\n");
+ gint count = 0;
+
+ g_print ("%s:\n", _("Tags (shown by name)"));
+
+ while (tracker_sparql_cursor_next (cursor, NULL, NULL)) {
+ const gchar *id;
+ const gchar *tag;
+ const gchar *description;
+ const gchar *files;
+ gint n_files = 0;
+
+ id = tracker_sparql_cursor_get_string (cursor, 0, NULL);
+ files = tracker_sparql_cursor_get_string (cursor, 3, NULL);
+ n_files = atoi (files);
+
+ tag = tracker_sparql_cursor_get_string (cursor, 1, NULL);
+ description = tracker_sparql_cursor_get_string (cursor, 2, NULL);
+
+ if (description && *description == '\0') {
+ description = NULL;
+ }
+
+ g_print (" %s %s%s%s\n",
+ tag,
+ description ? "(" : "",
+ description ? description : "",
+ description ? ")" : "");
+
+ if (show_files && n_files > 0) {
+ get_all_tags_show_tag_id (connection, id);
+ } else {
+ g_print (" %s\n", id);
+ g_print (" ");
+ g_print (g_dngettext (NULL,
+ "%d file",
+ "%d files",
+ n_files),
+ n_files);
+ g_print ("\n");
+ }
+
+ count++;
+ }
- g_ptr_array_foreach (results,
- get_all_tags_foreach,
- show_files ? client : NULL);
+ if (count == 0) {
+ g_print (" %s\n", _("None"));
+ }
+
+ g_print ("\n");
- if (results->len >= search_limit) {
+ if (count >= search_limit) {
show_limit_warning ();
}
- g_ptr_array_foreach (results, (GFunc) g_strfreev, NULL);
- g_ptr_array_free (results, TRUE);
+ g_object_unref (cursor);
}
return TRUE;
}
static void
-print_file_report (GPtrArray *urns,
- GStrv uris,
- const gchar *found_msg,
- const gchar *not_found_msg)
+print_file_report (TrackerSparqlCursor *cursor,
+ GStrv uris,
+ const gchar *found_msg,
+ const gchar *not_found_msg)
{
- gint i, j;
+ gint i;
- if (!urns || !uris) {
- g_print (" No files were modified.\n");
+ if (!cursor || !uris) {
+ g_print (" %s\n", _("No files were modified"));
return;
}
for (i = 0; uris[i]; i++) {
gboolean found = FALSE;
- for (j = 0; j < urns->len; j++) {
- gchar **row;
+ g_print ("*** checking uri:'%s' and rewinding cursor\n", uris[i]);
- row = g_ptr_array_index (urns, j);
+ while (tracker_sparql_cursor_next (cursor, NULL, NULL)) {
+ const gchar *str;
- if (g_strcmp0 (row[1], uris[i]) == 0) {
+ str = tracker_sparql_cursor_get_string (cursor, 1, NULL);
+ g_print ("*** comparing to str:'%s'\n", str);
+
+ if (g_strcmp0 (str, uris[i]) == 0) {
found = TRUE;
+ g_print ("*** FOUND FOUND FOUND!\n");
break;
}
}
@@ -523,16 +540,18 @@ print_file_report (GPtrArray *urns,
g_print (" %s: %s\n",
found ? found_msg : not_found_msg,
uris[i]);
+
+ tracker_sparql_cursor_rewind (cursor);
}
}
static gboolean
-add_tag_for_urns (TrackerClient *client,
- GStrv files,
- const gchar *tag,
- const gchar *description)
+add_tag_for_urns (TrackerSparqlConnection *connection,
+ GStrv files,
+ const gchar *tag,
+ const gchar *description)
{
- GPtrArray *urns = NULL;
+ TrackerSparqlCursor *cursor;
GError *error = NULL;
GStrv uris;
gchar *tag_escaped;
@@ -578,7 +597,7 @@ add_tag_for_urns (TrackerClient *client,
tag_escaped);
}
- tracker_resources_sparql_update (client, query, &error);
+ tracker_sparql_connection_update (connection, query, NULL, &error);
g_free (query);
if (error) {
@@ -602,54 +621,52 @@ add_tag_for_urns (TrackerClient *client,
return TRUE;
}
- urns = get_file_urns (client, uris, NULL);
+ cursor = get_file_urns (connection, uris, NULL);
/* First we check if the tag is already set and only add if it
* is, then we add the urns specified to the new tag.
*/
- if (urns && urns->len > 0) {
- GStrv urns_strv;
- gchar *filter;
-
- urns_strv = result_to_strv (urns, 0);
- filter = get_filter_string (urns_strv, TRUE, NULL);
-
- /* Add tag to specific urns */
- query = g_strdup_printf ("INSERT { "
- " ?urn nao:hasTag ?id "
- "} "
- "WHERE {"
- " ?urn nie:url ?f ."
- " ?id nao:prefLabel %s "
- " %s "
- "}",
- tag_escaped,
- filter);
-
- tracker_resources_sparql_update (client, query, &error);
- g_strfreev (urns_strv);
- g_free (filter);
- g_free (query);
-
- if (error) {
- g_printerr ("%s, %s\n",
- _("Could not add tag to files"),
- error->message);
- g_error_free (error);
- g_free (tag_escaped);
-
- return FALSE;
- }
- }
+ if (cursor) {
+ GStrv urns_strv;
+ gchar *filter;
+
+ urns_strv = result_to_strv (cursor, 0);
+ filter = get_filter_string (urns_strv, TRUE, NULL);
+
+ /* Add tag to specific urns */
+ query = g_strdup_printf ("INSERT { "
+ " ?urn nao:hasTag ?id "
+ "} "
+ "WHERE {"
+ " ?urn nie:url ?f ."
+ " ?id nao:prefLabel %s "
+ " %s "
+ "}",
+ tag_escaped,
+ filter);
+
+ tracker_sparql_connection_update (connection, query, NULL, &error);
+ g_strfreev (urns_strv);
+ g_free (filter);
+ g_free (query);
+
+ if (error) {
+ g_printerr ("%s, %s\n",
+ _("Could not add tag to files"),
+ error->message);
+ g_error_free (error);
+ g_free (tag_escaped);
+ g_object_unref (cursor);
+
+ return FALSE;
+ }
- if (urns) {
- print_file_report (urns, uris,
- _("Tagged"),
- _("Not tagged, file is not indexed"));
+ print_file_report (cursor, uris,
+ _("Tagged"),
+ _("Not tagged, file is not indexed"));
- g_ptr_array_foreach (urns, (GFunc) g_strfreev, NULL);
- g_ptr_array_free (urns, TRUE);
- }
+ g_object_unref (cursor);
+ }
g_strfreev (uris);
g_free (tag_escaped);
@@ -658,11 +675,11 @@ add_tag_for_urns (TrackerClient *client,
}
static gboolean
-remove_tag_for_urns (TrackerClient *client,
- GStrv files,
- const gchar *tag)
+remove_tag_for_urns (TrackerSparqlConnection *connection,
+ GStrv files,
+ const gchar *tag)
{
- GPtrArray *urns = NULL;
+ TrackerSparqlCursor *urns_cursor = NULL;
GError *error = NULL;
gchar *tag_escaped;
gchar *query;
@@ -672,7 +689,7 @@ remove_tag_for_urns (TrackerClient *client,
uris = get_uris (files);
if (uris && *uris) {
- GPtrArray *results;
+ TrackerSparqlCursor *tag_cursor;
gchar *filter;
const gchar *urn;
GStrv urns_strv;
@@ -685,7 +702,7 @@ remove_tag_for_urns (TrackerClient *client,
"}",
tag_escaped);
- results = tracker_resources_sparql_query (client, query, &error);
+ tag_cursor = tracker_sparql_connection_query (connection, query, NULL, &error);
g_free (query);
if (error) {
@@ -699,31 +716,41 @@ remove_tag_for_urns (TrackerClient *client,
return FALSE;
}
- if (!results || !results->pdata || !results->pdata[0]) {
+ if (!tag_cursor || !tracker_sparql_cursor_next (tag_cursor, NULL, NULL)) {
g_print ("%s\n",
_("No tags were found by that name"));
g_free (tag_escaped);
g_strfreev (uris);
+ if (tag_cursor) {
+ g_object_unref (tag_cursor);
+ }
+
return TRUE;
}
- urn = * (GStrv) results->pdata[0];
- urns = get_file_urns (client, uris, urn);
+ urn = tracker_sparql_cursor_get_string (tag_cursor, 0, NULL);
+ urns_cursor = get_file_urns (connection, uris, urn);
- if (!urns || urns->len == 0) {
+ if (!urns_cursor || !tracker_sparql_cursor_next (urns_cursor, NULL, NULL)) {
g_print ("%s\n",
_("None of the files had this tag set"));
g_strfreev (uris);
g_free (tag_escaped);
+ g_object_unref (tag_cursor);
+
+ if (urns_cursor) {
+ g_object_unref (urns_cursor);
+ }
return TRUE;
}
- urns_strv = result_to_strv (urns, 0);
+ urns_strv = result_to_strv (urns_cursor, 0);
filter = get_filter_string (urns_strv, TRUE, urn);
+ g_strfreev (urns_strv);
query = g_strdup_printf ("DELETE { "
" ?urn nao:hasTag ?t "
@@ -734,10 +761,8 @@ remove_tag_for_urns (TrackerClient *client,
"}",
filter);
g_free (filter);
- g_strfreev (urns_strv);
- g_ptr_array_foreach (results, (GFunc) g_strfreev, NULL);
- g_ptr_array_free (results, TRUE);
+ g_object_unref (tag_cursor);
} else {
/* Remove tag completely */
query = g_strdup_printf ("DELETE { "
@@ -751,7 +776,7 @@ remove_tag_for_urns (TrackerClient *client,
g_free (tag_escaped);
- tracker_resources_sparql_update (client, query, &error);
+ tracker_sparql_connection_update (connection, query, NULL, &error);
g_free (query);
if (error) {
@@ -759,7 +784,6 @@ remove_tag_for_urns (TrackerClient *client,
_("Could not remove tag"),
error->message);
g_error_free (error);
- g_strfreev (uris);
return FALSE;
}
@@ -767,35 +791,24 @@ remove_tag_for_urns (TrackerClient *client,
g_print ("%s\n",
_("Tag was removed successfully"));
- if (urns) {
- print_file_report (urns, uris,
- _("Untagged"),
- _("File not indexed or already untagged"));
+ if (urns_cursor) {
+ print_file_report (urns_cursor, uris,
+ _("Untagged"),
+ _("File not indexed or already untagged"));
+ g_object_unref (urns_cursor);
+ }
- g_ptr_array_foreach (urns, (GFunc) g_strfreev, NULL);
- g_ptr_array_free (urns, TRUE);
- }
-
- g_strfreev (uris);
+ g_strfreev (uris);
return TRUE;
}
-static void
-get_tags_by_file_foreach (gpointer value,
- gpointer user_data)
-{
- GStrv data = value;
-
- g_print (" %s\n", data[1]);
-}
-
static gboolean
-get_tags_by_file (TrackerClient *client,
- const gchar *uri)
+get_tags_by_file (TrackerSparqlConnection *connection,
+ const gchar *uri)
{
+ TrackerSparqlCursor *cursor;
GError *error = NULL;
- GPtrArray *results;
gchar *query;
query = g_strdup_printf ("SELECT ?tags ?labels "
@@ -808,7 +821,7 @@ get_tags_by_file (TrackerClient *client,
"ORDER BY ASC(?labels)",
uri);
- results = tracker_resources_sparql_query (client, query, &error);
+ cursor = tracker_sparql_connection_query (connection, query, NULL, &error);
g_free (query);
if (error) {
@@ -820,16 +833,24 @@ get_tags_by_file (TrackerClient *client,
return FALSE;
}
- if (!results || results->len < 1) {
+ if (!cursor) {
g_print (" %s\n",
_("No tags were found"));
} else {
- g_ptr_array_foreach (results,
- get_tags_by_file_foreach,
- NULL);
+ gint count = 0;
- g_ptr_array_foreach (results, (GFunc) g_strfreev, NULL);
- g_ptr_array_free (results, TRUE);
+ while (tracker_sparql_cursor_next (cursor, NULL, NULL)) {
+ g_print (" %s\n", tracker_sparql_cursor_get_string (cursor, 1, NULL));
+ count++;
+ }
+
+ if (count == 0) {
+ g_print (" %s\n", _("None"));
+ }
+
+ g_print ("\n");
+
+ g_object_unref (cursor);
}
return TRUE;
@@ -838,9 +859,10 @@ get_tags_by_file (TrackerClient *client,
int
main (int argc, char **argv)
{
- TrackerClient *client;
- GOptionContext *context;
- const gchar *failed = NULL;
+ TrackerSparqlConnection *connection;
+ GOptionContext *context;
+ GError *error = NULL;
+ const gchar *failed = NULL;
setlocale (LC_ALL, "");
@@ -891,19 +913,27 @@ main (int argc, char **argv)
g_option_context_free (context);
- client = tracker_client_new (0, G_MAXINT);
+ g_type_init ();
+
+ if (!g_thread_supported ()) {
+ g_thread_init (NULL);
+ }
+
+ connection = tracker_sparql_connection_get (&error);
- if (!client) {
- g_printerr ("%s\n",
- _("Could not establish a D-Bus connection to Tracker"));
+ if (!connection) {
+ g_printerr ("%s: %s\n",
+ _("Could not establish a connection to Tracker"),
+ error ? error->message : _("No error given"));
+ g_clear_error (&error);
return EXIT_FAILURE;
}
if (list) {
gboolean success;
- success = get_all_tags (client, files, offset, limit, or_operator, show_files);
- g_object_unref (client);
+ success = get_all_tags (connection, files, offset, limit, or_operator, show_files);
+ g_object_unref (connection);
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}
@@ -911,8 +941,8 @@ main (int argc, char **argv)
if (add_tag) {
gboolean success;
- success = add_tag_for_urns (client, files, add_tag, description);
- g_object_unref (client);
+ success = add_tag_for_urns (connection, files, add_tag, description);
+ g_object_unref (connection);
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}
@@ -920,8 +950,8 @@ main (int argc, char **argv)
if (remove_tag) {
gboolean success;
- success = remove_tag_for_urns (client, files, remove_tag);
- g_object_unref (client);
+ success = remove_tag_for_urns (connection, files, remove_tag);
+ g_object_unref (connection);
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}
@@ -939,18 +969,17 @@ main (int argc, char **argv)
g_object_unref (file);
g_print ("%s\n", uri);
- success &= get_tags_by_file (client, uri);
- g_print ("\n");
+ success &= get_tags_by_file (connection, uri);
g_free (uri);
}
- g_object_unref (client);
+ g_object_unref (connection);
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}
- g_object_unref (client);
+ g_object_unref (connection);
/* This is a failure because we should have done something.
* This code should never be reached in practise.
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