# -*- coding: utf-8 -*-

# Open Source Initiative OSI - The MIT License (MIT):Licensing

#

# The MIT License (MIT)

# Copyright (c) 2012 DotCloud Inc ([email protected])

#

# Permission is hereby granted, free of charge, to any person obtaining a copy of

# this software and associated documentation files (the "Software"), to deal in

# the Software without restriction, including without limitation the rights to

# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies

# of the Software, and to permit persons to whom the Software is furnished to do

# so, subject to the following conditions:

#

# The above copyright notice and this permission notice shall be included in all

# copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

# SOFTWARE.

class ReqRep:

def process_call(self, context, bufchan, event, functor):

result = context.middleware_call_procedure(functor, *event.args, **event.kwargs)

bufchan.emit('OK', (result,), None, context.middleware_get_task_context())

def accept_answer(self, event):

return True

def process_answer(self, context, bufchan, event, method, raise_remote_error):

result = event.args[0]

if event.name == 'ERR':

raise_remote_error(event)

bufchan.close()

return result

class ReqStream:

def process_call(self, context, bufchan, event, functor):

xheader = context.middleware_get_task_context()

for result in iter(context.middleware_call_procedure(

functor,

*event.args,

**event.kwargs

)):

bufchan.emit('STREAM', result, None, xheader)

bufchan.emit('STREAM_DONE', None, None, xheader)

def accept_answer(self, event):

return event.name in ('STREAM', 'STREAM_DONE')

def process_answer(self, context, bufchan, event, method, raise_remote_error):

def is_stream_done(event):

return event.name == 'STREAM_DONE'

bufchan.on_close_if = is_stream_done

def iterator(event):

while event.name == 'STREAM':

yield event.args

event = bufchan.recv()

if event.name == 'ERR':

raise_remote_error(event)

bufchan.close()

return iterator(event)

patterns_list = [ReqStream(), ReqRep()]