[Zope-CVS] CVS: Products/AdaptableStorage/serial_ofs - PythonScriptSerializer.py:1.1.2.1

[Christian Zagrodnick]

Update of /cvs-repository/Products/AdaptableStorage/serial_ofs
In directory cvs.zope.org:/tmp/cvs-serv17557

Added Files:
      Tag: zagy-patches
	PythonScriptSerializer.py 
Log Message:
Serializer for Python Scripts.


=== Added File Products/AdaptableStorage/serial_ofs/PythonScriptSerializer.py ===
##############################################################################
#
# Copyright (c) 2002 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Aspect for a Python Script 

$Id: PythonScriptSerializer.py,v 1.1.2.1 2003/01/13 19:05:04 zagy Exp $
"""

from types import StringType

from Products.PythonScripts.PythonScript import PythonScript

from mapper_public import IAspectSerializer, FieldSchema


class PythonScriptSerializer:
    """Serializer for PythonScripts.

        PythonScriptSerializer serializes using the same representation
        as FTP or WebDAV.  All computable attributes like compiled code
        is dropped.
    """
        
    __implements__ = IAspectSerializer

    schema = FieldSchema('data', 'string')
    attributes = ('title', '_params', '_body', '_bind_names')
    
    def getSchema(self):
        return self.schema

    def canSerialize(self, object):
        return isinstance(object, PythonScript)

    def serialize(self, object, event):
        data = object.read()
        assert isinstance(data, StringType)            
        for attr in self.attributes:
            event.notifySerialized(attr, getattr(object, attr), 1)
        for attr in ('warnings', 'error', '_code', 'Python_magic', 
                'Script_magic', 'func_defaults', 'func_code', 
                'co_varnames', 'co_argcount'):
            event.ignoreAttribute(attr)
    
        return data
        
    def deserialize(self, object, event, state):
        assert isinstance(state, StringType)
        assert isinstance(object, PythonScript)
        object.write(state) 
        for attr in self.attributes:
            event.notifyDeserialized(attr, getattr(object, attr))
        object._makeFunction()