#
# 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.
#

"""
A simple python representation for AMQP content.
"""

def default(val, defval):
  if val == None:
    return defval
  else:
    return val

class Content:

  def __init__(self, body = "", children = None, properties = None):
    self.body = body
    self.children = default(children, [])
    self.properties = default(properties, {})

  def size(self):
    return len(self.body)

  def weight(self):
    return len(self.children)

  def __getitem__(self, name):
    return self.properties[name]

  def __setitem__(self, name, value):
    self.properties[name] = value

  def __delitem__(self, name):
    del self.properties[name]
