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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/*
* GData Client
* Copyright (C) 2014 Carlos Garnacho <carlosg@gnome.org>
*
* GData Client 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.
*
* GData Client 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 GData Client. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* SECTION:gdata-freebase-result
* @short_description: GData Freebase result object
* @stability: Unstable
* @include: gdata/services/freebase/gdata-freebase-result.h
*
* #GDataFreebaseResult is a subclass of #GDataEntry to represent the result of a Google Freebase MQL query.
*
* For more details of Google Freebase API, see the <ulink type="http" url="https://developers.google.com/freebase/v1/">
* online documentation</ulink>.
*
* Since: UNRELEASED
*/
#include <config.h>
#include <glib.h>
#include <glib/gi18n-lib.h>
#include <string.h>
#include "gdata-freebase-result.h"
#include "gdata-private.h"
#include "gdata-types.h"
#define URLBASE "https://www.googleapis.com/freebase/v1/"
enum {
PROP_VARIANT = 1
};
struct _GDataFreebaseResultPrivate {
GVariant *result;
};
static void gdata_freebase_result_finalize (GObject *self);
static void gdata_freebase_result_get_property (GObject *self, guint prop_id, GValue *value, GParamSpec *pspec);
static gboolean parse_json (GDataParsable *parsable, JsonReader *reader, gpointer user_data, GError **error);
static const gchar *get_content_type (void);
static gchar *get_entry_uri (const gchar *id);
G_DEFINE_TYPE (GDataFreebaseResult, gdata_freebase_result, GDATA_TYPE_ENTRY)
static void
gdata_freebase_result_class_init (GDataFreebaseResultClass *klass)
{
GDataParsableClass *parsable_class = GDATA_PARSABLE_CLASS (klass);
GDataEntryClass *entry_class = GDATA_ENTRY_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GDataFreebaseResultPrivate));
gobject_class->finalize = gdata_freebase_result_finalize;
gobject_class->get_property = gdata_freebase_result_get_property;
parsable_class->parse_json = parse_json;
parsable_class->get_content_type = get_content_type;
entry_class->get_entry_uri = get_entry_uri;
/**
* GDataFreebaseResult:variant:
*
* Variant containing the MQL result. The variant is a very generic container of type "a{smv}",
* containing (possibly nested) Freebase schema types and values.
*
* Since: UNRELEASED
**/
g_object_class_install_property (gobject_class, PROP_VARIANT,
g_param_spec_variant ("variant",
"Variant", "Variant holding the raw result.",
G_VARIANT_TYPE ("a{smv}"), NULL,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
}
static void
gdata_freebase_result_init (GDataFreebaseResult *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GDATA_TYPE_FREEBASE_RESULT, GDataFreebaseResultPrivate);
}
static void
gdata_freebase_result_finalize (GObject *self)
{
GDataFreebaseResultPrivate *priv = GDATA_FREEBASE_RESULT (self)->priv;
if (priv->result != NULL)
g_variant_unref (priv->result);
G_OBJECT_CLASS (gdata_freebase_result_parent_class)->finalize (self);
}
static void
gdata_freebase_result_get_property (GObject *self, guint prop_id, GValue *value, GParamSpec *pspec)
{
GDataFreebaseResultPrivate *priv = GDATA_FREEBASE_RESULT (self)->priv;
switch (prop_id) {
case PROP_VARIANT:
g_value_set_variant (value, priv->result);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (self, prop_id, pspec);
break;
}
}
static gboolean
parse_json (GDataParsable *parsable, JsonReader *reader, gpointer user_data, GError **error)
{
GDataFreebaseResultPrivate *priv = GDATA_FREEBASE_RESULT (parsable)->priv;
JsonNode *root, *node;
JsonObject *object;
if (g_strcmp0 (json_reader_get_member_name (reader), "result") != 0)
return TRUE;
g_object_get (reader, "root", &root, NULL);
object = json_node_get_object (root);
node = json_object_get_member (object, "result");
priv->result = g_variant_ref_sink (json_gvariant_deserialize (node, NULL, error));
json_node_free (root);
return (priv->result != NULL);
}
static const gchar *
get_content_type (void)
{
return "application/json";
}
static gchar *
get_entry_uri (const gchar *id)
{
/* https://www.googleapis.com/freebase/v1/mqlread interface */
return g_strconcat (URLBASE, id, NULL);
}
/**
* gdata_freebase_result_new:
*
* Creates a new #GDataFreebaseResult.
*
* Return value: (transfer full): a new #GDataFreebaseResult; unref with g_object_unref()
*
* Since: UNRELEASED
*/
GDataFreebaseResult *
gdata_freebase_result_new (void)
{
return g_object_new (GDATA_TYPE_FREEBASE_RESULT, NULL);
}
/**
* gdata_freebase_result_dup_variant:
* @self: a #GDataFreebaseResult
*
* Gets the result serialized as a #GVariant of type "a{smv}", containing the JSON
* data tree. This variant can be alternatively processed through json_gvariant_serialize().
*
* Returns: (allow-none) (transfer full): the serialized result, or %NULL; unref with g_variant_unref()
*
* Since: UNRELEASED
**/
GVariant *
gdata_freebase_result_dup_variant (GDataFreebaseResult *self)
{
GDataFreebaseResultPrivate *priv;
g_return_val_if_fail (GDATA_IS_FREEBASE_RESULT (self), NULL);
priv = self->priv;
if (priv->result == NULL)
return NULL;
return g_variant_ref (priv->result);
}
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