static JsonNode *
snra_json_value_to_node (const GValue *value)
{
JsonNode *n = NULL;
if (GST_VALUE_HOLDS_STRUCTURE (value)) {
const GstStructure *s = gst_value_get_structure (value);
n = snra_json_from_gst_structure (s);
}
else if (GST_VALUE_HOLDS_ARRAY (value)) {
guint count = gst_value_array_get_size (value);
guint i;
JsonArray *arr = json_array_sized_new (count);
for (i = 0; i < count; i++) {
const GValue *sub_val = gst_value_array_get_value (value, i);
JsonNode *tmp = snra_json_value_to_node (sub_val);
if (tmp)
json_array_add_element (arr, tmp);
}
n = json_node_new (JSON_NODE_ARRAY);
json_node_take_array (n, arr);
} else {
n = json_node_new (JSON_NODE_VALUE);
json_node_set_value (n, value);
}
return n;
}
JsonNode*
cometd_msg_wrap(JsonNode* msg)
{
JsonNode* payload = json_node_new(JSON_NODE_ARRAY);
JsonArray* arr = json_array_new();
json_array_add_element(arr, msg);
json_node_take_array(payload, arr);
return payload;
}
/**
* json_object_set_array_member:
* @object: a #JsonObject
* @member_name: the name of the member
* @value: the value of the member
*
* Convenience function for setting an array @value of
* @member_name inside @object.
*
* The @object will take ownership of the passed #JsonArray
*
* See also: json_object_set_member()
*
* Since: 0.8
*/
void
json_object_set_array_member (JsonObject *object,
const gchar *member_name,
JsonArray *value)
{
JsonNode *node;
g_return_if_fail (object != NULL);
g_return_if_fail (member_name != NULL);
node = json_node_new (JSON_NODE_ARRAY);
json_node_take_array (node, value);
object_set_member_internal (object, member_name, node);
}
// Create a gchar** into a json array
JsonNode *glib_jsonrpc_json_strv_to_json_array(gchar **strv)
{
JsonArray *array = json_array_new();
gchar **p = strv;
while(*p)
{
JsonNode *node = json_node_new(JSON_NODE_VALUE);
json_node_set_string(node, *p);
json_array_add_element(array,node);
p++;
}
JsonNode *node = json_node_new(JSON_NODE_ARRAY);
json_node_take_array(node, array);
return node;
}
/**
* json_array_add_array_element:
* @array: a #JsonArray
* @value: (transfer full): a #JsonArray
*
* Conveniently adds an array into @array. The @array takes ownership
* of the newly added #JsonArray
*
* See also: json_array_add_element(), json_node_take_array()
*
* Since: 0.8
*/
void
json_array_add_array_element (JsonArray *array,
JsonArray *value)
{
JsonNode *node;
g_return_if_fail (array != NULL);
g_return_if_fail (value != NULL);
if (value != NULL)
{
node = json_node_new (JSON_NODE_ARRAY);
json_node_take_array (node, value);
}
else
node = json_node_new (JSON_NODE_NULL);
g_ptr_array_add (array->elements, node);
}
static void
glide_document_json_obj_set_slides (GlideDocument *document, JsonObject *obj)
{
JsonNode *node = json_node_new (JSON_NODE_ARRAY);
JsonArray *array = json_array_new ();
GList *s;
for (s = document->priv->slides; s; s = s->next)
{
JsonNode *n;
GlideSlide *slide = (GlideSlide *)(s->data);
n = glide_actor_serialize (GLIDE_ACTOR (slide));
json_array_add_element (array, n);
}
json_node_take_array (node, array);
json_object_set_member (obj, "slides", node);
}
/**
* json_builder_end_array:
* @builder: a #JsonBuilder
*
* Closes the subarray inside the given @builder that was opened by the most
* recent call to json_builder_begin_array().
*
* Cannot be called after json_builder_set_member_name().
*
* Return value: (transfer none): the #JsonBuilder, or %NULL if the call was inconsistent
*/
JsonBuilder *
json_builder_end_array (JsonBuilder *builder)
{
JsonBuilderState *state;
g_return_val_if_fail (JSON_IS_BUILDER (builder), NULL);
g_return_val_if_fail (!g_queue_is_empty (builder->priv->stack), NULL);
g_return_val_if_fail (json_builder_current_mode (builder) == JSON_BUILDER_MODE_ARRAY, NULL);
state = g_queue_pop_head (builder->priv->stack);
if (g_queue_is_empty (builder->priv->stack))
{
builder->priv->root = json_node_new (JSON_NODE_ARRAY);
json_node_take_array (builder->priv->root, json_array_ref (state->data.array));
}
json_builder_state_free (state);
return builder;
}
JsonNode *
json_serialize_pspec (const GValue *real_value,
GParamSpec *pspec)
{
JsonNode *retval = NULL;
GValue value = { 0, };
JsonNodeType node_type;
switch (G_TYPE_FUNDAMENTAL (G_VALUE_TYPE (real_value)))
{
case G_TYPE_INT64:
case G_TYPE_BOOLEAN:
case G_TYPE_DOUBLE:
/* JSON native types */
retval = json_node_new (JSON_NODE_VALUE);
g_value_init (&value, G_VALUE_TYPE (real_value));
g_value_copy (real_value, &value);
json_node_set_value (retval, &value);
g_value_unset (&value);
break;
case G_TYPE_STRING:
/* strings might be NULL, so we handle it differently */
if (!g_value_get_string (real_value))
retval = json_node_new (JSON_NODE_NULL);
else
{
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_string (retval, g_value_get_string (real_value));
break;
}
break;
case G_TYPE_INT:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_int (real_value));
break;
case G_TYPE_FLOAT:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_double (retval, g_value_get_float (real_value));
break;
case G_TYPE_BOXED:
if (G_VALUE_HOLDS (real_value, G_TYPE_STRV))
{
gchar **strv = g_value_get_boxed (real_value);
gint i, strv_len;
JsonArray *array;
strv_len = g_strv_length (strv);
array = json_array_sized_new (strv_len);
for (i = 0; i < strv_len; i++)
{
JsonNode *str = json_node_new (JSON_NODE_VALUE);
json_node_set_string (str, strv[i]);
json_array_add_element (array, str);
}
retval = json_node_new (JSON_NODE_ARRAY);
json_node_take_array (retval, array);
}
else if (json_boxed_can_serialize (G_VALUE_TYPE (real_value), &node_type))
{
gpointer boxed = g_value_get_boxed (real_value);
retval = json_boxed_serialize (G_VALUE_TYPE (real_value), boxed);
}
else
g_warning ("Boxed type '%s' is not handled by JSON-GLib",
g_type_name (G_VALUE_TYPE (real_value)));
break;
case G_TYPE_UINT:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_uint (real_value));
break;
case G_TYPE_LONG:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_long (real_value));
break;
case G_TYPE_ULONG:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_long (real_value));
break;
case G_TYPE_CHAR:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_char (real_value));
break;
case G_TYPE_UCHAR:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_uchar (real_value));
break;
case G_TYPE_ENUM:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_enum (real_value));
break;
case G_TYPE_FLAGS:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_flags (real_value));
break;
case G_TYPE_OBJECT:
{
GObject *object = g_value_get_object (real_value);
if (object != NULL)
{
retval = json_node_new (JSON_NODE_OBJECT);
json_node_take_object (retval, json_gobject_dump (object));
}
else
retval = json_node_new (JSON_NODE_NULL);
}
break;
case G_TYPE_NONE:
retval = json_node_new (JSON_NODE_NULL);
break;
default:
g_warning ("Unsupported type `%s'", g_type_name (G_VALUE_TYPE (real_value)));
break;
}
return retval;
}
static guint
json_parse_array (JsonParser *parser,
JsonScanner *scanner,
JsonNode **node)
{
JsonParserPrivate *priv = parser->priv;
JsonNode *old_current;
JsonArray *array;
guint token;
gint idx;
old_current = priv->current_node;
priv->current_node = json_node_init_array (json_node_alloc (), NULL);
array = json_array_new ();
token = json_scanner_get_next_token (scanner);
g_assert (token == G_TOKEN_LEFT_BRACE);
g_signal_emit (parser, parser_signals[ARRAY_START], 0);
idx = 0;
while (token != G_TOKEN_RIGHT_BRACE)
{
guint next_token = json_scanner_peek_next_token (scanner);
JsonNode *element = NULL;
/* parse the element */
switch (next_token)
{
case G_TOKEN_LEFT_BRACE:
JSON_NOTE (PARSER, "Nested array at index %d", idx);
token = json_parse_array (parser, scanner, &element);
break;
case G_TOKEN_LEFT_CURLY:
JSON_NOTE (PARSER, "Nested object at index %d", idx);
token = json_parse_object (parser, scanner, &element);
break;
case G_TOKEN_RIGHT_BRACE:
goto array_done;
default:
token = json_scanner_get_next_token (scanner);
token = json_parse_value (parser, scanner, token, &element);
break;
}
if (token != G_TOKEN_NONE || element == NULL)
{
/* the json_parse_* functions will have set the error code */
json_array_unref (array);
json_node_free (priv->current_node);
priv->current_node = old_current;
return token;
}
next_token = json_scanner_peek_next_token (scanner);
if (next_token == G_TOKEN_COMMA)
{
token = json_scanner_get_next_token (scanner);
next_token = json_scanner_peek_next_token (scanner);
/* look for trailing commas */
if (next_token == G_TOKEN_RIGHT_BRACE)
{
priv->error_code = JSON_PARSER_ERROR_TRAILING_COMMA;
json_array_unref (array);
json_node_free (priv->current_node);
json_node_free (element);
priv->current_node = old_current;
return G_TOKEN_RIGHT_BRACE;
}
}
JSON_NOTE (PARSER, "Array element %d completed", idx + 1);
json_node_set_parent (element, priv->current_node);
json_array_add_element (array, element);
g_signal_emit (parser, parser_signals[ARRAY_ELEMENT], 0,
array,
idx);
token = next_token;
}
array_done:
json_scanner_get_next_token (scanner);
json_node_take_array (priv->current_node, array);
json_node_set_parent (priv->current_node, old_current);
g_signal_emit (parser, parser_signals[ARRAY_END], 0, array);
if (node != NULL && *node == NULL)
*node = priv->current_node;
priv->current_node = old_current;
return G_TOKEN_NONE;
}
/**
* melo_jsonrpc_parse_request:
* @request: the JSON-RPC requrest serialized in a string
* @length: the length og @request, can be -1 for null-terminated string
* @error: a pointer to a #GError which is set if an error occurred
*
* Parse a string @request containing a JSON-RPC serialized request, call the
* registered callback which match the request method and present the result
* as a JSON-RPC response serialized in a string.
* If the method is not registered, a JSON-RPC response is generated with the
* error MELO_JSONRPC_ERROR_METHOD_NOT_FOUND.
*
* Returns: (transfer full): a string containing the serialized #JsonNode
* corresponding to the respond to the JSON-RPC request. Use g_free() after
* usage.
*/
gchar *
melo_jsonrpc_parse_request (const gchar *request, gsize length, GError **error)
{
JsonParser *parser;
JsonNodeType type;
JsonNode *req;
JsonNode *res;
GError *err = NULL;
gchar *str;
/* Create parser */
parser = json_parser_new ();
if (!parser)
return melo_jsonrpc_build_error_str (MELO_JSONRPC_ERROR_INTERNAL_ERROR,
"Internal error");
/* Parse request */
if (!json_parser_load_from_data (parser, request, length, &err) ||
(req = json_parser_get_root (parser)) == NULL) {
g_clear_error (&err);
goto parse_error;
}
/* Get node type */
type = json_node_get_node_type (req);
/* Parse node */
if (type == JSON_NODE_OBJECT) {
/* Parse single request */
res = melo_jsonrpc_parse_node (req);
} else if (type == JSON_NODE_ARRAY) {
/* Parse multiple requests: batch */
JsonArray *req_array;
JsonArray *res_array;
JsonNode *node;
guint count, i;
/* Get array from node */
req_array = json_node_get_array (req);
count = json_array_get_length (req_array);
if (!count)
goto invalid;
/* Create a new array for response */
res_array = json_array_sized_new (count);
res = json_node_new (JSON_NODE_ARRAY);
json_node_take_array (res, res_array);
/* Parse each elements of array */
for (i = 0; i < count; i++) {
/* Get element */
node = json_array_get_element (req_array, i);
/* Process requesit */
node = melo_jsonrpc_parse_node (node);
/* Add new response to array */
if (node)
json_array_add_element (res_array, node);
}
/* Check if array is empty */
count = json_array_get_length (res_array);
if (!count) {
json_node_free (res);
goto empty;
}
} else
goto invalid;
/* No response */
if (!res)
goto empty;
/* Generate final string */
str = melo_jsonrpc_node_to_string (res);
/* Free parser and root node */
json_node_free (res);
g_object_unref (parser);
return str;
parse_error:
g_object_unref (parser);
return melo_jsonrpc_build_error_str (MELO_JSONRPC_ERROR_PARSE_ERROR,
"Parse error");
invalid:
g_object_unref (parser);
return melo_jsonrpc_build_error_str (MELO_JSONRPC_ERROR_INVALID_REQUEST,
"Invalid request");
empty:
g_object_unref (parser);
return NULL;
}
static guint
json_parse_array (JsonParser *parser,
JsonScanner *scanner,
JsonNode **node)
{
JsonParserPrivate *priv = parser->priv;
JsonNode *old_current;
JsonArray *array;
guint token;
gint idx;
old_current = priv->current_node;
priv->current_node = json_node_new (JSON_NODE_ARRAY);
array = json_array_new ();
token = json_scanner_get_next_token (scanner);
g_assert (token == G_TOKEN_LEFT_BRACE);
g_signal_emit (parser, parser_signals[ARRAY_START], 0);
idx = 0;
while (token != G_TOKEN_RIGHT_BRACE)
{
guint next_token = json_scanner_peek_next_token (scanner);
JsonNode *element = NULL;
/* parse the element */
switch (next_token)
{
case G_TOKEN_LEFT_BRACE:
token = json_parse_array (parser, scanner, &element);
break;
case G_TOKEN_LEFT_CURLY:
token = json_parse_object (parser, scanner, &element);
break;
case G_TOKEN_INT:
case G_TOKEN_FLOAT:
case G_TOKEN_STRING:
case '-':
case JSON_TOKEN_TRUE:
case JSON_TOKEN_FALSE:
case JSON_TOKEN_NULL:
token = json_scanner_get_next_token (scanner);
token = json_parse_value (parser, scanner, token, &element);
break;
case G_TOKEN_RIGHT_BRACE:
goto array_done;
default:
if (next_token != G_TOKEN_RIGHT_BRACE)
token = G_TOKEN_RIGHT_BRACE;
break;
}
if (token != G_TOKEN_NONE || element == NULL)
{
/* the json_parse_* functions will have set the error code */
json_array_unref (array);
json_node_free (priv->current_node);
priv->current_node = old_current;
return token;
}
next_token = json_scanner_peek_next_token (scanner);
if (next_token == G_TOKEN_COMMA)
{
token = json_scanner_get_next_token (scanner);
next_token = json_scanner_peek_next_token (scanner);
/* look for trailing commas */
if (next_token == G_TOKEN_RIGHT_BRACE)
{
json_array_unref (array);
json_node_free (priv->current_node);
json_node_free (element);
priv->current_node = old_current;
return G_TOKEN_RIGHT_BRACE;
}
}
json_node_set_parent (element, priv->current_node);
json_array_add_element (array, element);
g_signal_emit (parser, parser_signals[ARRAY_ELEMENT], 0,
array,
idx);
token = next_token;
}
array_done:
json_scanner_get_next_token (scanner);
json_node_take_array (priv->current_node, array);
json_node_set_parent (priv->current_node, old_current);
g_signal_emit (parser, parser_signals[ARRAY_END], 0, array);
if (node != NULL && *node == NULL)
*node = priv->current_node;
priv->current_node = old_current;
return G_TOKEN_NONE;
}
