def index(request, graph = 'stable'):
'''
Returns a tabular view of the stored annotations.
- HTTPRequest **request** the client request
- string **graph** the required named graph
TDB - In a future implemenation this actions should be supported by an OpenSearch implementation
'''
tmp_g = None
try:
tmp_g = _collect_annotations(graph)
except StoreConnectionError as e:
messages.add_message(request, messages.ERROR, e)
return mm_render_to_response_error(request, '503.html', 503)
req_format = _validateFormat(request)
if req_format != 'html':
LOGGING.debug("Annotations %s" % __serialize(tmp_g, req_format = req_format))
return HttpResponse(__serialize(tmp_g, req_format = req_format))
states = {}
LOGGING.debug("Annotations %s" % tmp_g.serialize())
for s, p, o in tmp_g.triples((None, None, OA['Annotation'])):
states[s] = find_annotation_graph(s)
context = {'results': tmp_g.serialize(), 'states': json.dumps(states)}
return mm_render_to_response(request, context, 'viewer.html')
def process_request(self, request):
if request.method == 'OPTIONS':
return HttpResponse(status=200)
if CharmeMiddleware.get_store() is None:
try:
self.__initStore()
except AttributeError, e:
messages.add_message(request, messages.ERROR, e)
messages.add_message(request, messages.INFO, 'Missing configuration')
return mm_render_to_response_error(request, '503.html', 503)
def advance_status(request):
'''
Advance the status of an annotation
'''
if isPOST(request) and 'application/json' in content_type(request):
params = json.loads(request.body)
if not params.has_key('annotation') or not params.has_key('state'):
messages.add_message(request, messages.ERROR, "Missing annotation/state parameters")
return mm_render_to_response_error(request, '400.html', 400)
LOGGING.info("advancing %s to state:%s" % (params.get('annotation'), params.get('toState')))
tmp_g = change_annotation_state(params.get('annotation'), params.get('toState'))
return HttpResponse(tmp_g.serialize())
def insert(request):
'''
Inserts in the triplestore a new annotation under the "ANNO_SUBMITTED" graph
'''
try:
req_format = _validateFormat(request)
except SerializeError as e:
messages.add_message(request, messages.ERROR, e)
return mm_render_to_response_error(request, '400.html', 400)
if isPOST(request) or isOPTIONS(request):
triples = request.body
tmp_g = insert_rdf(triples, req_format, graph=ANNO_SUBMITTED)
ret_format = validateMimeFormat(request)
if ret_format is None:
ret_format = req_format
return HttpResponse(__serialize(tmp_g, req_format = ret_format), content_type=FORMAT_MAP.get(ret_format))
