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/*
* Copyright (C) 2018, 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.
*/
#include "config.h"
#include "tracker-direct-statement.h"
#include "tracker-data.h"
typedef struct _TrackerDirectStatementPrivate TrackerDirectStatementPrivate;
struct _TrackerDirectStatementPrivate
{
TrackerSparql *sparql;
GHashTable *values;
};
G_DEFINE_TYPE_WITH_PRIVATE (TrackerDirectStatement,
tracker_direct_statement,
TRACKER_SPARQL_TYPE_STATEMENT)
static void
tracker_direct_statement_finalize (GObject *object)
{
TrackerDirectStatementPrivate *priv;
priv = tracker_direct_statement_get_instance_private (TRACKER_DIRECT_STATEMENT (object));
g_hash_table_destroy (priv->values);
g_clear_object (&priv->sparql);
G_OBJECT_CLASS (tracker_direct_statement_parent_class)->finalize (object);
}
static void
tracker_direct_statement_constructed (GObject *object)
{
TrackerDirectStatementPrivate *priv;
TrackerSparqlConnection *conn;
gchar *sparql;
priv = tracker_direct_statement_get_instance_private (TRACKER_DIRECT_STATEMENT (object));
g_object_get (object,
"sparql", &sparql,
"connection", &conn,
NULL);
priv->sparql = tracker_sparql_new (tracker_direct_connection_get_data_manager (TRACKER_DIRECT_CONNECTION (conn)),
sparql);
g_object_unref (conn);
g_free (sparql);
G_OBJECT_CLASS (tracker_direct_statement_parent_class)->constructed (object);
}
static GValue *
insert_value (TrackerDirectStatement *stmt,
const gchar *name,
GType type)
{
TrackerDirectStatementPrivate *priv;
GValue *value;
priv = tracker_direct_statement_get_instance_private (stmt);
value = g_new0 (GValue, 1);
g_value_init (value, type);
g_hash_table_insert (priv->values, g_strdup (name), value);
return value;
}
static void
tracker_direct_statement_bind_int (TrackerSparqlStatement *stmt,
const gchar *name,
gint64 value)
{
GValue *gvalue;
gvalue = insert_value (TRACKER_DIRECT_STATEMENT (stmt), name, G_TYPE_INT64);
g_value_set_int64 (gvalue, value);
}
static void
tracker_direct_statement_bind_double (TrackerSparqlStatement *stmt,
const gchar *name,
double value)
{
GValue *gvalue;
gvalue = insert_value (TRACKER_DIRECT_STATEMENT (stmt), name, G_TYPE_DOUBLE);
g_value_set_double (gvalue, value);
}
static void
tracker_direct_statement_bind_boolean (TrackerSparqlStatement *stmt,
const gchar *name,
gboolean value)
{
GValue *gvalue;
gvalue = insert_value (TRACKER_DIRECT_STATEMENT (stmt), name, G_TYPE_BOOLEAN);
g_value_set_boolean (gvalue, value);
}
static void
tracker_direct_statement_bind_string (TrackerSparqlStatement *stmt,
const gchar *name,
const gchar *value)
{
GValue *gvalue;
gvalue = insert_value (TRACKER_DIRECT_STATEMENT (stmt), name, G_TYPE_STRING);
g_value_set_string (gvalue, value);
}
static TrackerSparqlCursor *
tracker_direct_statement_execute (TrackerSparqlStatement *stmt,
GCancellable *cancellable,
GError **error)
{
TrackerDirectStatementPrivate *priv;
priv = tracker_direct_statement_get_instance_private (TRACKER_DIRECT_STATEMENT (stmt));
return tracker_sparql_execute_cursor (priv->sparql, priv->values, error);
}
static void
execute_in_thread (GTask *task,
gpointer object,
gpointer task_data,
GCancellable *cancellable)
{
TrackerDirectStatementPrivate *priv;
TrackerSparqlCursor *cursor;
GHashTable *values = task_data;
GError *error = NULL;
priv = tracker_direct_statement_get_instance_private (object);
cursor = tracker_sparql_execute_cursor (priv->sparql, values, &error);
if (error)
g_task_return_error (task, error);
else
g_task_return_pointer (task, cursor, g_object_unref);
g_object_unref (task);
}
static void
free_gvalue (gpointer data)
{
g_value_unset (data);
g_free (data);
}
static GHashTable *
create_values_ht (void)
{
return g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, free_gvalue);
}
static GHashTable *
copy_values_deep (GHashTable *values)
{
GHashTable *copy;
GHashTableIter iter;
gpointer key, val;
copy = create_values_ht ();
g_hash_table_iter_init (&iter, values);
while (g_hash_table_iter_next (&iter, &key, &val)) {
GValue *copy_value;
copy_value = g_new0 (GValue, 1);
g_value_init (copy_value, G_VALUE_TYPE (val));
g_value_copy (copy_value, val);
g_hash_table_insert (copy, g_strdup (key), copy_value);
}
return copy;
}
static void
tracker_direct_statement_execute_async (TrackerSparqlStatement *stmt,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
TrackerDirectStatementPrivate *priv;
GHashTable *values;
GTask *task;
priv = tracker_direct_statement_get_instance_private (TRACKER_DIRECT_STATEMENT (stmt));
values = copy_values_deep (priv->values);
task = g_task_new (stmt, cancellable, callback, user_data);
g_task_set_task_data (task, values, (GDestroyNotify) g_hash_table_unref);
g_task_run_in_thread (task, execute_in_thread);
}
static TrackerSparqlCursor *
tracker_direct_statement_execute_finish (TrackerSparqlStatement *stmt,
GAsyncResult *res,
GError **error)
{
return g_task_propagate_pointer (G_TASK (res), error);
}
static void
tracker_direct_statement_class_init (TrackerDirectStatementClass *klass)
{
TrackerSparqlStatementClass *stmt_class = (TrackerSparqlStatementClass *) klass;
GObjectClass *object_class = (GObjectClass *) klass;
object_class->finalize = tracker_direct_statement_finalize;
object_class->constructed = tracker_direct_statement_constructed;
stmt_class->bind_int = tracker_direct_statement_bind_int;
stmt_class->bind_boolean = tracker_direct_statement_bind_boolean;
stmt_class->bind_double = tracker_direct_statement_bind_double;
stmt_class->bind_string = tracker_direct_statement_bind_string;
stmt_class->execute = tracker_direct_statement_execute;
stmt_class->execute_async = tracker_direct_statement_execute_async;
stmt_class->execute_finish = tracker_direct_statement_execute_finish;
}
static void
tracker_direct_statement_init (TrackerDirectStatement *stmt)
{
TrackerDirectStatementPrivate *priv;
priv = tracker_direct_statement_get_instance_private (stmt);
priv->values = create_values_ht ();
}
TrackerDirectStatement *
tracker_direct_statement_new (TrackerSparqlConnection *conn,
const gchar *sparql,
GError **error)
{
return g_object_new (TRACKER_TYPE_DIRECT_STATEMENT,
"sparql", sparql,
"connection", conn,
NULL);
}
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