#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
#

from thrift.protocol.TProtocol import TProtocolBase
from types import *

class TProtocolDecorator():
  def __init__(self, protocol):
    TProtocolBase(protocol)
    self.protocol = protocol

  def __getattr__(self, name):
    if hasattr(self.protocol, name):
      member = getattr(self.protocol, name)
      if type(member) in [MethodType, UnboundMethodType, FunctionType, LambdaType, BuiltinFunctionType, BuiltinMethodType]:
        return lambda *args, **kwargs: self._wrap(member, args, kwargs)
      else:
        return member
    raise AttributeError(name)

  def _wrap(self, func, args, kwargs):
    if type(func) == MethodType:
      result = func(*args, **kwargs)
    else:
      result = func(self.protocol, *args, **kwargs)
    return result