def __call__(self, request):
"""WSGI method that controls (de)serialization and method dispatch."""
LOG.info("%(method)s %(url)s" % {"method": request.method,
"url": request.url})
try:
action, args, accept = self.deserializer.deserialize(request)
except exception.InvalidContentType:
msg = _("Unsupported Content-Type")
return faults.Fault(webob.exc.HTTPBadRequest(explanation=msg))
except exception.MalformedRequestBody:
msg = _("Malformed request body")
return faults.Fault(webob.exc.HTTPBadRequest(explanation=msg))
try:
action_result = self.dispatch(request, action, args)
except webob.exc.HTTPException as ex:
LOG.info(_("HTTP exception thrown: %s"), unicode(ex))
action_result = faults.Fault(ex)
if type(action_result) is dict or action_result is None:
response = self.serializer.serialize(action_result,
accept,
action=action)
else:
response = action_result
try:
msg_dict = dict(url=request.url, status=response.status_int)
msg = _("%(url)s returned with HTTP %(status)d") % msg_dict
except AttributeError, e:
msg_dict = dict(url=request.url, e=e)
msg = _("%(url)s returned a fault: %(e)s" % msg_dict)
def dispatch(self, request, action, action_args):
"""Find action-spefic method on controller and call it."""
controller_method = getattr(self.controller, action)
try:
return controller_method(req=request, **action_args)
except TypeError as exc:
LOG.exception(exc)
return faults.Fault(webob.exc.HTTPBadRequest())