Source code for spyne.server.null

# spyne - Copyright (C) Spyne contributors.
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301

"""The ``spyne.server.null`` module contains the NullServer class and its helper

The name comes from the "null modem connection". Look it up.

import logging
logger = logging.getLogger(__name__)

from spyne import MethodContext

from spyne.client import Factory
from spyne.const.ansi_color import LIGHT_RED
from spyne.const.ansi_color import LIGHT_BLUE
from spyne.const.ansi_color import END_COLOR
from spyne.server import ServerBase

_big_header = ('=' * 40) + LIGHT_RED
_big_footer = END_COLOR + ('=' * 40)
_small_header = ('-' * 20) + LIGHT_BLUE
_small_footer = END_COLOR + ('-' * 20)

class NullServer(ServerBase):
[docs] """A server that doesn't support any transport at all -- it's implemented to test services without having to run a server. It implicitly uses the 'sync' auxiliary processing mode. Note that: 1) ``**kwargs`` overwrite ``*args``. 2) You can do: :: logging.getLogger('spyne.server.null').setLevel(logging.CRITICAL) to hide context delimiters in logs. """ transport = 'noconn://null.spyne' def __init__(self, app): ServerBase.__init__(self, app) self.service = _FunctionProxy(self, self.factory = Factory( def get_wsdl(self):
[docs] return def set_options(self, **kwargs):
[docs] self.service.in_header = kwargs.get('soapheaders', self.service.in_header) class _FunctionProxy(object):
def __init__(self, server, app): self.__app = app self.__server = server self.in_header = None def __getattr__(self, key): return _FunctionCall(self.__app, self.__server, key, self.in_header) class _FunctionCall(object): def __init__(self, app, server, key, in_header): = app self.__key = key self.__server = server self.__in_header = in_header def __call__(self, *args, **kwargs): initial_ctx = MethodContext(self) initial_ctx.method_request_string = self.__key initial_ctx.in_header = self.__in_header initial_ctx.transport.type = NullServer.transport contexts = cnt = 0 retval = None logger.warning( "%s start request %s" % (_big_header, _big_footer) ) for ctx in contexts: # this reconstruction is quite costly. I wonder whether it's a # problem though. _type_info = ctx.descriptor.in_message._type_info ctx.in_object = [None] * len(_type_info) for i in range(len(args)): ctx.in_object[i] = args[i] for i,k in enumerate(_type_info.keys()): val = kwargs.get(k, None) if val is not None: ctx.in_object[i] = val if cnt == 0: p_ctx = ctx else: ctx.descriptor.aux.initialize_context(ctx, p_ctx, error=None) # do logging.getLogger('spyne.server.null').setLevel(logging.CRITICAL) # to hide the following logger.warning( "%s start context %s" % (_small_header, _small_footer) ) logger.warning( "%s end context %s" % (_small_header, _small_footer) ) if ctx.out_error: raise ctx.out_error else: if len(ctx.descriptor.out_message._type_info) == 0: _retval = None elif len(ctx.descriptor.out_message._type_info) == 1: _retval = ctx.out_object[0] # workaround to have the context disposed of when the caller # is done with the return value. the context is sometimes # needed to fully construct the return object (e.g. when the # object is a sqlalchemy object bound to a session that's # defined in the context object). try: _retval.__ctx__ = ctx except AttributeError: # not all objects let this happen. (eg. built-in types # like str, but they don't need the context anyway). pass else: _retval = ctx.out_object # same as above try: _retval[0].__ctx__ = ctx except AttributeError: pass if cnt == 0: retval = _retval cnt += 1 logger.warning( "%s end request %s" % (_big_header, _big_footer) ) return retval