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/*
* Copyright (C) 2019, Red Hat, Inc
*
* 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.
*
* Author: Carlos Garnacho <carlosg@gnome.org>
*/
#include "config.h"
#include "tracker-endpoint.h"
#include "tracker-private.h"
enum {
PROP_0,
PROP_SPARQL_CONNECTION,
N_PROPS
};
static GParamSpec *props[N_PROPS] = { 0 };
typedef struct {
TrackerSparqlConnection *sparql_connection;
} TrackerEndpointPrivate;
G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (TrackerEndpoint, tracker_endpoint, G_TYPE_OBJECT)
/**
* TrackerEndpoint:
*
* `TrackerEndpoint` is a helper object to make RDF triple stores represented
* by a [class@Tracker.SparqlConnection] publicly available to other processes/hosts.
*
* This is a base abstract object, see [class@Tracker.EndpointDBus] to make
* RDF triple stores available to other processes in the same machine, and
* [class@Tracker.EndpointHttp] to make it available to other hosts in the
* network.
*
* When the RDF triple store represented by a [class@Tracker.SparqlConnection]
* is made public this way, other peers may connect to the database using
* [ctor@Tracker.SparqlConnection.bus_new] or [ctor@Tracker.SparqlConnection.remote_new]
* to access this endpoint exclusively, or they may use the `SERVICE <uri> { ... }` SPARQL
* syntax from their own [class@Tracker.SparqlConnection]s to expand their data set.
*/
static void
tracker_endpoint_finalize (GObject *object)
{
TrackerEndpoint *endpoint = TRACKER_ENDPOINT (object);
TrackerEndpointPrivate *priv = tracker_endpoint_get_instance_private (endpoint);
g_clear_object (&priv->sparql_connection);
G_OBJECT_CLASS (tracker_endpoint_parent_class)->finalize (object);
}
static void
tracker_endpoint_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
TrackerEndpoint *endpoint = TRACKER_ENDPOINT (object);
TrackerEndpointPrivate *priv = tracker_endpoint_get_instance_private (endpoint);
switch (prop_id) {
case PROP_SPARQL_CONNECTION:
priv->sparql_connection = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
tracker_endpoint_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
TrackerEndpoint *endpoint = TRACKER_ENDPOINT (object);
TrackerEndpointPrivate *priv = tracker_endpoint_get_instance_private (endpoint);
switch (prop_id) {
case PROP_SPARQL_CONNECTION:
g_value_set_object (value, priv->sparql_connection);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
tracker_endpoint_class_init (TrackerEndpointClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = tracker_endpoint_finalize;
object_class->set_property = tracker_endpoint_set_property;
object_class->get_property = tracker_endpoint_get_property;
/**
* TrackerEndpoint:sparql-connection:
*
* The [class@Tracker.SparqlConnection] being proxied by this endpoint.
*/
props[PROP_SPARQL_CONNECTION] =
g_param_spec_object ("sparql-connection",
"Sparql connection",
"Sparql connection",
TRACKER_SPARQL_TYPE_CONNECTION,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, N_PROPS, props);
}
static void
tracker_endpoint_init (TrackerEndpoint *endpoint)
{
}
/**
* tracker_endpoint_get_sparql_connection:
* @endpoint: a `TrackerEndpoint`
*
* Returns the [class@Tracker.SparqlConnection] that this endpoint proxies
* to a wider audience.
*
* Returns: (transfer none): The proxied SPARQL connection
**/
TrackerSparqlConnection *
tracker_endpoint_get_sparql_connection (TrackerEndpoint *endpoint)
{
TrackerEndpointPrivate *priv = tracker_endpoint_get_instance_private (endpoint);
return priv->sparql_connection;
}
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