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/*
* Copyright (C) 2010, 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.
*/
[DBus (name = "org.freedesktop.Tracker1.Resources", timeout = 2147483647 /* INT_MAX */)]
private interface Tracker.Bus.Resources : GLib.Object {
public abstract void load (string uri) throws Sparql.Error, DBus.Error;
[DBus (name = "Load")]
public abstract async void load_async (string uri) throws Sparql.Error, DBus.Error;
}
[DBus (name = "org.freedesktop.Tracker1.Statistics")]
private interface Tracker.Bus.Statistics : GLib.Object {
public abstract string[,] Get () throws DBus.Error;
public async abstract string[,] Get_async () throws DBus.Error;
}
// Imported DBus FD API until we have support with Vala
public extern Tracker.Sparql.Cursor tracker_bus_fd_query (DBus.Connection connection, string query, Cancellable? cancellable) throws Tracker.Sparql.Error, DBus.Error, GLib.IOError;
// Actual class definition
public class Tracker.Bus.Connection : Tracker.Sparql.Connection {
static DBus.Connection connection;
static Resources resources_object;
static Statistics statistics_object;
static bool initialized;
public Connection ()
requires (!initialized) {
initialized = true;
try {
connection = DBus.Bus.get (DBus.BusType.SESSION);
// FIXME: Ideally we would just get these as and when we need them
resources_object = (Resources) connection.get_object (TRACKER_DBUS_SERVICE,
TRACKER_DBUS_OBJECT_RESOURCES,
TRACKER_DBUS_INTERFACE_RESOURCES);
statistics_object = (Statistics) connection.get_object (TRACKER_DBUS_SERVICE,
TRACKER_DBUS_OBJECT_STATISTICS,
TRACKER_DBUS_INTERFACE_STATISTICS);
} catch (DBus.Error e) {
warning ("Could not connect to D-Bus service:'%s': %s", TRACKER_DBUS_INTERFACE_RESOURCES, e.message);
initialized = false;
return;
}
initialized = true;
}
~Connection () {
initialized = false;
}
public override Sparql.Cursor query (string sparql, Cancellable? cancellable) throws Sparql.Error, IOError {
try {
return tracker_bus_fd_query (connection, sparql, cancellable);
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public async override Sparql.Cursor query_async (string sparql, Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
return yield tracker_bus_fd_query_async (connection, sparql, cancellable);
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public override void update (string sparql, int priority = GLib.Priority.DEFAULT, Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
if (priority >= GLib.Priority.DEFAULT) {
tracker_bus_fd_sparql_update (connection, sparql);
} else {
tracker_bus_fd_sparql_batch_update (connection, sparql);
}
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public async override void update_async (string sparql, int priority = GLib.Priority.DEFAULT, Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
if (priority >= GLib.Priority.DEFAULT) {
yield tracker_bus_fd_sparql_update_async (connection, sparql, cancellable);
} else {
yield tracker_bus_fd_sparql_batch_update_async (connection, sparql, cancellable);
}
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public async override GLib.PtrArray? update_array_async (string[] sparql, int priority = GLib.Priority.DEFAULT, Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
if (priority >= GLib.Priority.DEFAULT) {
return yield tracker_bus_fd_sparql_update_array_async (connection, sparql, cancellable);
} else {
return yield tracker_bus_fd_sparql_batch_update_array_async (connection, sparql, cancellable);
}
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public override GLib.Variant? update_blank (string sparql, int priority = GLib.Priority.DEFAULT, Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
GLib.Variant res = null;
res = tracker_bus_fd_sparql_update_blank (connection, sparql);
return res;
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public async override GLib.Variant? update_blank_async (string sparql, int priority = GLib.Priority.DEFAULT, Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
GLib.Variant res = null;
res = yield tracker_bus_fd_sparql_update_blank_async (connection, sparql, cancellable);
return res;
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public override void load (File file, Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
resources_object.load (file.get_uri ());
if (cancellable != null && cancellable.is_cancelled ()) {
throw new IOError.CANCELLED ("Operation was cancelled");
}
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public async override void load_async (File file, Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
yield resources_object.load_async (file.get_uri ());
if (cancellable != null && cancellable.is_cancelled ()) {
throw new IOError.CANCELLED ("Operation was cancelled");
}
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public override Sparql.Cursor? statistics (Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
string[,] results = statistics_object.Get ();
Sparql.ValueType[] types = new Sparql.ValueType[2];
string[] var_names = new string[2];
if (cancellable != null && cancellable.is_cancelled ()) {
throw new IOError.CANCELLED ("Operation was cancelled");
}
var_names[0] = "class";
var_names[1] = "count";
types[0] = Sparql.ValueType.STRING;
types[1] = Sparql.ValueType.INTEGER;
return new Tracker.Bus.ArrayCursor ((owned) results,
results.length[0],
results.length[1],
var_names,
types);
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
public async override Sparql.Cursor? statistics_async (Cancellable? cancellable = null) throws Sparql.Error, IOError {
try {
string[,] results = yield statistics_object.Get_async ();
Sparql.ValueType[] types = new Sparql.ValueType[2];
string[] var_names = new string[2];
if (cancellable != null && cancellable.is_cancelled ()) {
throw new IOError.CANCELLED ("Operation was cancelled");
}
var_names[0] = "class";
var_names[1] = "count";
types[0] = Sparql.ValueType.STRING;
types[1] = Sparql.ValueType.INTEGER;
return new Tracker.Bus.ArrayCursor ((owned) results,
results.length[0],
results.length[1],
var_names,
types);
} catch (DBus.Error e) {
throw new Sparql.Error.INTERNAL (e.message);
}
}
}
public Tracker.Sparql.Connection module_init () {
Tracker.Sparql.Connection plugin = new Tracker.Bus.Connection ();
return plugin;
}
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