gboolean midgard_core_object_parameters_purge_with_blob(
MidgardConnection *mgd, const gchar *class_name,
const gchar *guid, guint n_params, const GParameter *parameters)
{
g_assert(mgd != NULL);
g_assert(class_name != NULL);
g_assert(guid != NULL);
GObject **objects = __fetch_parameter_objects(
mgd, class_name, guid, n_params, parameters);
/* nothing to purge */
if(!objects)
return FALSE;
gboolean rv = FALSE;
guint i = 0;
MidgardBlob *blob = NULL;
while (objects[i] != NULL ) {
/* ! IMPORTANT !
* Blob on filesystem must be deleted first.
* In any other case, if something goes wrong, we won't be able
* to check which file is orphaned.
* If file is removed and record's deletion failed, on is able
* to check file with blob's file_exists method */
blob = midgard_blob_new(MIDGARD_OBJECT(objects[i]), NULL);
if(!blob) {
g_warning("Can not handle blob for given attachment");
continue;
}
if(midgard_blob_exists(blob))
midgard_blob_remove_file(blob, NULL);
midgard_object_purge(MIDGARD_OBJECT(objects[i]), FALSE);
g_object_unref(blob);
g_object_unref(objects[i]);
i++;
}
g_free(objects);
return rv;
}
/**
* midgard_replicator_serialize_blob:
* @object: #MidgardObject of MIDGARD_TYPE_ATTACHMENT type
*
* Serialize midgard_blob binary data.
*
* Returns: Newly allocated xml buffer, which holds blob data base64 encoded, or %NULL.
*/
gchar *
midgard_replicator_serialize_blob (MidgardObject *object)
{
GType attachment_type = g_type_from_name ("midgard_attachment");
g_return_val_if_fail (g_type_is_a (G_OBJECT_TYPE (object), attachment_type), NULL);
MidgardBlob *blob = midgard_blob_new(object, NULL);
if(!blob)
return NULL;
gsize bytes_read = 0;
gchar *content = midgard_blob_read_content(blob, &bytes_read);
if(!content) {
g_object_unref(blob);
return NULL;
}
gchar *encoded =
g_base64_encode((const guchar *)content, bytes_read);
g_free(content);
xmlDoc *doc = midgard_core_object_create_xml_doc();
xmlNode *root_node =
xmlDocGetRootElement(doc);
xmlNode *blob_node =
xmlNewTextChild(root_node, NULL,
(const xmlChar*)
"midgard_blob",
BAD_CAST encoded);
xmlNewProp(blob_node, BAD_CAST "guid",
BAD_CAST MGD_OBJECT_GUID (object));
g_free(encoded);
g_object_unref (blob);
xmlChar *buf;
gint size;
xmlDocDumpFormatMemoryEnc(doc, &buf, &size, "UTF-8", 1);
xmlFreeDoc(doc);
xmlCleanupParser();
return (gchar*) buf;
}
/**
* midgard_blob_create_blob:
*
* Invokes midgard_blob_new() and it's designed for language bindings, in whic,
* that function can not be invoked explicitly.
*
* Since: 10.05.1
*/
MidgardBlob*
midgard_blob_create_blob (MidgardObject *attachment, const gchar *encoding)
{
return midgard_blob_new (attachment, encoding);
}