def get_task_args(self):
"extracts task args from a request"
try:
options = json_decode(self.request.body)
except (TypeError, ValueError):
raise web.HTTPError(400)
args = options.pop('args', [])
kwargs = options.pop('kwargs', {})
if not isinstance(args, (list, tuple)):
raise web.HTTPError(400, 'task args must be a list or tuple')
return args, kwargs, options
def get_task_args(self):
"extracts task args from a request"
try:
options = json_decode(self.request.body)
except (TypeError, ValueError):
raise web.HTTPError(400)
args = options.pop('args', [])
kwargs = options.pop('kwargs', {})
if not isinstance(args, (list, tuple)):
raise web.HTTPError(400, 'task args must be a list or tuple')
return args, kwargs, options
def post(self, taskname):
"""
Apply tasks synchronously. Function returns when the task is finished
**Example request**:
.. sourcecode:: http
POST /apply/examples.tasks.add/ HTTP/1.1
Accept: application/json
Accept-Encoding: gzip, deflate, compress
Content-Length: 16
Content-Type: application/json; charset=utf-8
Host: localhost:8888
User-Agent: HTTPie/0.8.0
{
"args": [
1,
2
]
}
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Length: 84
Content-Type: application/json; charset=UTF-8
Server: TornadoServer/3.2
{
"result": 3,
"state": "SUCCESS",
"task-id": "2ce70595-a028-4e0d-b906-be2183fc6821"
}
:statuscode 200: no error
:statuscode 400: invalid request
:statuscode 404: unknown task
"""
try:
task = self.application.celery_app.tasks[taskname]
except KeyError:
raise web.HTTPError(404, "Unknown task '%s'" % taskname)
args, kwargs, options = self.get_task_args()
timeout = options.pop('timeout', None)
task_id = uuid()
htimeout = None
if timeout:
htimeout = ioloop.IOLoop.instance().add_timeout(
timedelta(seconds=timeout),
partial(self.on_time, task_id))
task.apply_async(args=args, kwargs=kwargs, task_id=task_id,
callback=partial(self.on_complete, htimeout),
**options)
def select_related(self, *columns, **options):
depth = options.pop('depth', None)
if options:
raise TypeError('Unexpected argument %r' % iter(options).next())
if depth not in (None, 1):
raise TypeError('Depth can only be 1 or None currently')
need_all = depth is None
columns = list(columns)
for idx, column in enumerate(columns):
column = column.replace('__', '.')
if '.' in column:
need_all = True
columns[idx] = column
func = (need_all and joinedload_all or joinedload)
return self.options(func(*columns))
def select_related(self, *columns, **options):
depth = options.pop('depth', None)
if options:
raise TypeError('Unexpected argument %r' % iter(options).next())
if depth not in (None, 1):
raise TypeError('Depth can only be 1 or None currently')
need_all = depth is None
columns = list(columns)
for idx, column in enumerate(columns):
column = column.replace('__', '.')
if '.' in column:
need_all = True
columns[idx] = column
func = (need_all and joinedload_all or joinedload)
return self.options(func(*columns))
def select_related(self, *columns, **options):
depth = options.pop("depth", None)
if options:
raise TypeError("Unexpected argument %r" % iter(options).next())
if depth not in (None, 1):
raise TypeError("Depth can only be 1 or None currently")
need_all = depth is None
columns = list(columns)
for idx, column in enumerate(columns):
column = column.replace("__", ".")
if "." in column:
need_all = True
columns[idx] = column
func = need_all and joinedload_all or joinedload
return self.options(func(*columns))
def post(self, taskname):
"""
Apply tasks synchronously. Function returns when the task is finished
**Example request**:
.. sourcecode:: http
POST /apply/examples.tasks.add/ HTTP/1.1
Accept: application/json
Accept-Encoding: gzip, deflate, compress
Content-Length: 16
Content-Type: application/json; charset=utf-8
Host: localhost:8888
User-Agent: HTTPie/0.8.0
{
"args": [
1,
2
]
}
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Length: 84
Content-Type: application/json; charset=UTF-8
Server: TornadoServer/3.2
{
"result": 3,
"state": "SUCCESS",
"task-id": "2ce70595-a028-4e0d-b906-be2183fc6821"
}
:statuscode 200: no error
:statuscode 400: invalid request
:statuscode 404: unknown task
"""
try:
task = self.application.celery_app.tasks[taskname]
except KeyError:
raise web.HTTPError(404, "Unknown task '%s'" % taskname)
args, kwargs, options = self.get_task_args()
timeout = options.pop('timeout', None)
task_id = uuid()
htimeout = None
if timeout:
htimeout = ioloop.IOLoop.instance().add_timeout(
timedelta(seconds=timeout), partial(self.on_time, task_id))
task.apply_async(args=args,
kwargs=kwargs,
task_id=task_id,
callback=partial(self.on_complete, htimeout),
**options)