def _first_rpc_result(self, result):
"""result is returned from make_rpc. Get the first data record
or throw an exception if it was an error. Ignore responses to
NOTIFY_OP_ID."""
result = [record for record in result if record['id'] != ops.NOTIFY_OP_ID]
if not result:
raise errors.RpcError('No results found.')
result = result[0]
error = result.get('error')
if error:
raise errors.RpcError(str(error['code'])
+ ': ' + error['message'])
data = result.get('data')
if data is not None:
return data
raise errors.Error('RPC Error: No data record.')
def make_rpc(self, operations):
"""Make an rpc call, submitting the specified operations."""
rpc_host = urlparse.urlparse(self._server_rpc_base).netloc
# We either expect an operationqueue, a single op or a list
# of ops:
if (not isinstance(operations, ops.OperationQueue)):
if not isinstance(operations, list):
operations = [operations]
queue = ops.OperationQueue()
queue.copy_operations(operations)
else:
queue = operations
data = simplejson.dumps(queue.serialize(method_prefix='wave'))
oauth_request = oauth.OAuthRequest.from_consumer_and_token(self._consumer,
token=self._access_token, http_method='POST',
http_url=self._server_rpc_base)
oauth_request.sign_request(WaveService.SIGNATURE_METHOD,
self._consumer, self._access_token)
logging.info('Active URL: %s' % self._server_rpc_base)
logging.info('Active Outgoing: %s' % data)
headers = {'Content-Type': 'application/json'}
headers.update(oauth_request.to_header());
status, content = self._http_post(
url=self._server_rpc_base,
data=data,
headers=headers)
if status != 200:
raise errors.RpcError('code: %s\n%s' % (status, content))
return simplejson.loads(content)