Adding EPL version of configurationengine.
#
# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
# All rights reserved.
# This component and the accompanying materials are made available
# under the terms of "Eclipse Public License v1.0"
# which accompanies this distribution, and is available
# at the URL "http://www.eclipse.org/legal/epl-v10.html".
#
# Initial Contributors:
# Nokia Corporation - initial contribution.
#
# Contributors:
#
# Description:
#
try:
from cElementTree import ElementTree
except ImportError:
try:
from elementtree import ElementTree
except ImportError:
try:
from xml.etree import cElementTree as ElementTree
except ImportError:
from xml.etree import ElementTree
import StringIO
import os
from cone.public import exceptions, persistence
class Metadata(object):
"""
metadata container objectl, which is only a dictionary container
"""
META_ROOT_FILE = 'cpf.rootFile'
def __init__(self, copyobj=None):
"""
Constructor initializes the default values
"""
self.data = {}
if copyobj != None:
self.data = copyobj.data.copy()
pass
def get_root_file(self):
return self.data.get(self.META_ROOT_FILE,"")
def set_root_file(self,filename):
self.data[self.META_ROOT_FILE] = filename
class MetadataReader(persistence.ConeReader):
"""
Parses a single metadata file
"""
class_type = "Metadata"
NAMESPACES = ['http://www.nokia.com/xml/ns/confml-core/metadata-2.0']
def __init__(self):
return
def fromstring(self, xml_as_string):
meta = Metadata()
etree = ElementTree.fromstring(xml_as_string)
iter = etree.getiterator("{%s}property" % self.NAMESPACES[0])
for elem in iter:
(key,value) = self.get_property(elem)
meta.data[key] = value
return meta
def get_property(self, elem):
key = elem.get('name')
value = ''
if elem.get('value'): value = elem.get('value')
return (key,value)
class MetadataWriter(persistence.ConeWriter):
"""
Writes a single metadata file
"""
class_type = "Metadata"
NAMESPACES = ['http://www.nokia.com/xml/ns/confml-core/metadata-2.0']
DEFAULT_ENCODING = "ASCII"
def __init__(self):
self.encoding = self.DEFAULT_ENCODING
return
def tostring(self,obj,indent=True):
stringdata = StringIO.StringIO()
self.toresource(obj, stringdata, indent)
return stringdata.getvalue()
def toresource(self,obj,res,indent=True):
root = ElementTree.Element("metadata")
root.set('xmlns',self.NAMESPACES[0])
if not obj.__class__ == Metadata:
raise exceptions.IncorrectClassError('The given object is not a instance of %s' % Metadata)
for key in obj.data.keys():
prop = ElementTree.SubElement(root,'property')
self.set_property(prop, key, obj.data[key])
if indent:
persistence.indent(root)
# some smarter way to implement adding of the encoding to the beginning of file
res.write('<?xml version="1.0" encoding="%s"?>%s' % (self.encoding,os.linesep))
ElementTree.ElementTree(root).write(res)
def set_property(self, elem, key, value):
elem.attrib['name'] = key
if value != '':
elem.attrib['value'] = value
return elem