def get(self, id):
'''
GET(read) operation
'''
version = self.get_argument('version', None)
internal = self.get_argument('internal', None)
txid = self.get_argument('txid', None)
tega_id = self.get_argument('tega_id')
regex_flag = str2bool(self.get_argument('regex_flag', False))
if version:
version = int(version)
internal = str2bool(internal)
path = url2path(id)
value = None
try:
value = tega.idb.get(url2path(id), version=version,
regex_flag=regex_flag)
if isinstance(value, Cont) or is_builtin_type(value):
self.write(value.dumps_(internal=internal))
elif isinstance(value, list):
dict_ = {v[0]: {'groups':v[2],
'instance':v[1].serialize_(internal=internal)} for v in
value}
self.write(json.dumps(dict_))
else:
self.write(json.dumps(value))
self.set_header('Content-Type', 'application/json')
except KeyError:
logging.info('path "{}" not found in global idb'.format(path))
raise tornado.web.HTTPError(404) # Not Found(404)
def on_message(self, msg):
'''
Handles SESSION/SUBSCRIBE/UNSUBSCRIBE request from a subscriber.
'''
cmd, param, body = self.parser(msg)
if cmd == 'SESSION':
self.tega_id = param[0] # tega ID from a tega client
scope = SCOPE(param[1])
self.subscriber = WebSocketSubscriber(scope, self)
self.subscriber.tega_id = self.tega_id
if scope == SCOPE.GLOBAL:
def _on_subscribe(path, scope):
self.write_message(
'SUBSCRIBE {} {}'.format(path, scope.value))
self.subscriber.on_subscribe = _on_subscribe
tega.idb.add_subscribe_forwarder(self.subscriber)
subscriber_clients[self.tega_id] = self.subscriber
tega.idb.add_tega_id(self.tega_id)
self.write_message('SESSIONACK {}'.format(server_tega_id))
elif cmd == 'SUBSCRIBE':
if param:
channel = param[0]
scope = SCOPE(param[1])
regex_flag = str2bool(param[2])
tega.idb.subscribe(self.subscriber, channel, scope, regex_flag)
else:
logging.warn('WebSocket(server): no channel indicated in SUBSCRIBE request')
elif cmd == 'UNSUBSCRIBE':
if param:
channel = param[0]
regex_flag = str2bool(param[1])
tega.idb.unsubscribe(self.subscriber, channel, regex_flag)
self.write_message('UNSUBSCRIBE {}'.format(param))
else:
tega.idb.unsubscribe_all(self.subscriber)
self.write_message('UNSUBSCRIBE')
elif cmd == 'PUBLISH':
tega.idb.publish(param, self.tega_id, body['message'],
self.subscriber)
elif cmd == 'NOTIFY':
tega.idb.crud_batch(body, self.subscriber)
elif cmd == 'MESSAGE':
channel = param[0]
tega_id = param[1]
tega.idb.publish(channel, tega_id, body['message'], self.subscriber)
elif cmd == 'REQUEST':
type_ = REQUEST_TYPE(param[1])
if type_ == REQUEST_TYPE.RPC:
self._route_rpc_request(param, body)
elif type_ == REQUEST_TYPE.SYNC:
self._sync_request(param, body)
elif type_ == REQUEST_TYPE.REFER:
self._refer_request(param, body)
elif cmd == 'RESPONSE':
type_ = REQUEST_TYPE(param[1])
if type_ == REQUEST_TYPE.RPC:
self._route_rpc_response(param, body)
elif type_ == REQUEST_TYPE.SYNC:
on_response(param, body)
elif type_ == REQUEST_TYPE.REFER:
on_response(param, body)
