/usr/lib/python2.7/dist-packages/notebook/services/api/handlers.py is in python-notebook 5.2.2-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | """Tornado handlers for api specifications."""
# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
from itertools import chain
import json
from tornado import gen, web
from ...base.handlers import IPythonHandler, APIHandler
from notebook._tz import utcfromtimestamp, isoformat
import os
class APISpecHandler(web.StaticFileHandler, IPythonHandler):
def initialize(self):
web.StaticFileHandler.initialize(self, path=os.path.dirname(__file__))
@web.authenticated
def get(self):
self.log.warning("Serving api spec (experimental, incomplete)")
self.set_header('Content-Type', 'text/x-yaml')
return web.StaticFileHandler.get(self, 'api.yaml')
class APIStatusHandler(APIHandler):
_track_activity = False
@web.authenticated
@gen.coroutine
def get(self):
# if started was missing, use unix epoch
started = self.settings.get('started', utcfromtimestamp(0))
# if we've never seen API activity, use started date
api_last_activity = self.settings.get('api_last_activity', started)
started = isoformat(started)
api_last_activity = isoformat(api_last_activity)
kernels = yield gen.maybe_future(self.kernel_manager.list_kernels())
total_connections = sum(k['connections'] for k in kernels)
last_activity = max(chain([api_last_activity], [k['last_activity'] for k in kernels]))
model = {
'started': started,
'last_activity': last_activity,
'kernels': len(kernels),
'connections': total_connections,
}
self.finish(json.dumps(model, sort_keys=True))
default_handlers = [
(r"/api/spec.yaml", APISpecHandler),
(r"/api/status", APIStatusHandler),
]
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