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#
# Copyright (c) 2006 The Apache Software Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""
Delegate implementation intended for use with the peer module.
"""
import threading, inspect
from spec import pythonize
class Delegate:
def __init__(self):
self.handlers = {}
self.invokers = {}
# initialize all the mixins
self.invoke_all("init")
def invoke_all(self, meth, *args, **kwargs):
for cls in inspect.getmro(self.__class__):
if hasattr(cls, meth):
getattr(cls, meth)(self, *args, **kwargs)
def dispatch(self, channel, message):
method = message.method
spec = method.klass.spec
try:
handler = self.handlers[method]
except KeyError:
name = "%s_%s" % (pythonize(method.klass.name),
pythonize(method.name))
handler = getattr(self, name)
self.handlers[method] = handler
return handler(channel, message)
def close(self, reason):
self.invoke_all("close", reason)
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