'''
dataContainer.py

Copyright 2006 Andres Riancho

This file is part of w3af, w3af.sourceforge.net .

w3af is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation version 2 of the License.

w3af is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with w3af; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

'''

import urllib

class dataContainer(dict):
	'''
	This class represents a data container. This is a simple class that is made so form and queryString 
	classes inherit from it.
	
	@author: Andres Riancho ( andres.riancho@gmail.com )
	'''
	def __init__(self, init_val=(), strict=False):
		self.strict = strict
		dict.__init__(self)
		if isinstance(init_val, dataContainer):
			self._sequence = init_val.keys()
			dict.update(self, init_val)
		elif isinstance(init_val, dict):
			# we lose compatibility with other ordered dict types this way
			raise TypeError('undefined order, cannot get items from dict')
		else:
			self._sequence = []

			for item in init_val:
				try:
					key, val = item
				except TypeError:
					raise TypeError('a')
				self[key] = val
				
	
	def __str__( self ):
		'''
		This method returns a string representation of the dataContainer Object.
		
		@return: string representation of the dataContainer Object.
		'''
		return urllib.urlencode( self )
		
	def copy(self):
		'''
		This method returns a copy of the dataContainer Object.
		
		@return: A copy of myself.
		'''
		return dataContainer(self)