def applyDiff(self, original_data, diff):
"""Use xuproc for computing patched content
"""
# XXX xuproc does not support passing
# etree objetcs
diff = etree.tostring(diff)
return etree.tostring(xuproc.applyXUpdate(xml_xu_string=diff,
xml_doc_string=original_data), encoding='utf-8')
def applyDiff(self, original_data, diff):
"""Use xuproc for computing patched content
"""
# XXX xuproc does not support passing
# etree objetcs
if not isinstance(diff, basestring):
diff = etree.tostring(diff)
return etree.tostring(xuproc.applyXUpdate(xml_xu_string=diff,
xml_doc_string=original_data),
encoding='utf-8')
def applyXupdate(self, object=None, xupdate=None, previous_xml=None, **kw):
"""
Parse the xupdate and then it will call the conduit
"""
conflict_list = []
if isinstance(xupdate, (str, unicode)):
xupdate = etree.XML(xupdate, parser=parser)
#LOG("applyXupdate", INFO, etree.tostring(xupdate, pretty_print=True))
xupdate_builded = False
xpath_expression_update_dict = {}
for subnode in xupdate:
selection_name = ''
original_xpath_expression = subnode.get('select', '')
if not xupdate_builded and\
MARSHALLER_NAMESPACE_URI in subnode.nsmap.values()\
or 'block_data' in original_xpath_expression:
# It means that the xpath expression is targetting
# marshalled values or data nodes. We need to rebuild the original xml
# in its own context in order to retrieve original value
# We are insde a loop build the XUpdated tree only once
xupdate_builded = True
# Find the prefix used by marshaller.
for prefix, namespace_uri in subnode.nsmap.iteritems():
if namespace_uri == MARSHALLER_NAMESPACE_URI:
break
# TODO add support of etree objects for xuproc to avoid
# serializing tree into string
if not isinstance(previous_xml, str):
previous_xml = etree.tostring(previous_xml)
xupdated_tree = xuproc.applyXUpdate(xml_xu_string=etree.tostring(xupdate),
xml_doc_string=previous_xml)
if MARSHALLER_NAMESPACE_URI in subnode.nsmap.values():
xpath_expression = original_xpath_expression
get_target_parent = subnode.xpath('name()') in XUPDATE_INSERT_LIST
context = self.getContextFromXpath(object, xpath_expression,
get_target_parent=get_target_parent)
base_xpath_expression = xpath_expression\
[:xpath_expression.index(prefix)-1]
xupdated_node_list = xupdated_tree.xpath(base_xpath_expression)
if xupdated_node_list:
xupdated_node = xupdated_node_list[0]
else:
ValueError('Wrong xpath expression:%r' % base_xpath_expression)
if base_xpath_expression not in xpath_expression_update_dict:
xpath_expression_update_dict[base_xpath_expression] = \
dict(xml=xupdated_node,
object=context,
xpath_expression=base_xpath_expression)
elif 'block_data' in original_xpath_expression:
"""XXX Use Qualified Names for block_data nodes
to avoid ambiguity
"""
xpath_expression = original_xpath_expression
get_target_parent = subnode.xpath('name()') in XUPDATE_INSERT_LIST
context = self.getContextFromXpath(object, xpath_expression,
get_target_parent=get_target_parent)
base_xpath_expression = xpath_expression\
[:xpath_expression.index('block_data')-1]
xupdated_node_list = xupdated_tree.xpath(base_xpath_expression)
if xupdated_node_list:
xupdated_node = xupdated_node_list[0]
else:
ValueError('Wrong xpath expression:%r' % base_xpath_expression)
if base_xpath_expression not in xpath_expression_update_dict:
xpath_expression_update_dict[base_xpath_expression] = \
dict(xml=xupdated_node,
object=context,
xpath_expression=base_xpath_expression)
elif subnode.xpath('name()') in XUPDATE_INSERT_OR_ADD_LIST:
conflict_list += self.addNode(xml=subnode, object=object,
previous_xml=previous_xml,
**kw)['conflict_list']
elif subnode.xpath('name()') == XUPDATE_DEL:
conflict_list += self.deleteNode(xml=subnode, object=object,
previous_xml=previous_xml, **kw)
elif subnode.xpath('name()') == XUPDATE_UPDATE:
conflict_list += self.updateNode(xml=subnode, object=object,
previous_xml=previous_xml, **kw)
# Now apply collected xupdated_node
for update_dict in xpath_expression_update_dict.itervalues():
update_dict.update(kw)
conflict_list += self.updateNode(previous_xml=previous_xml,
**update_dict)
return conflict_list
def applyXupdate(self, object=None, xupdate=None, previous_xml=None, **kw): # pylint: disable=redefined-builtin
"""
Parse the xupdate and then it will call the conduit
"""
conflict_list = []
if isinstance(xupdate, (str, unicode)):
xupdate = etree.XML(xupdate, parser=parser)
#LOG("applyXupdate", INFO, etree.tostring(xupdate, pretty_print=True))
xupdate_builded = False
xpath_expression_update_dict = {}
for subnode in xupdate:
original_xpath_expression = subnode.get('select', '')
if not xupdate_builded and \
MARSHALLER_NAMESPACE_URI in subnode.nsmap.values() \
or 'block_data' in original_xpath_expression:
# It means that the xpath expression is targetting
# marshalled values or data nodes. We need to rebuild the original xml
# in its own context in order to retrieve original value
# We are insde a loop build the XUpdated tree only once
xupdate_builded = True
# Find the prefix used by marshaller.
for prefix, namespace_uri in subnode.nsmap.iteritems():
if namespace_uri == MARSHALLER_NAMESPACE_URI:
break
# TODO add support of etree objects for xuproc to avoid
# serializing tree into string
if not isinstance(previous_xml, str):
previous_xml = etree.tostring(previous_xml)
xupdated_tree = xuproc.applyXUpdate(xml_xu_string=etree.tostring(xupdate),
xml_doc_string=previous_xml)
if MARSHALLER_NAMESPACE_URI in subnode.nsmap.values():
xpath_expression = original_xpath_expression
get_target_parent = subnode.xpath('name()') in XUPDATE_INSERT_LIST
context = self.getContextFromXpath(object, xpath_expression,
get_target_parent=get_target_parent)
base_xpath_expression = xpath_expression\
[:xpath_expression.index(prefix)-1]
xupdated_node_list = xupdated_tree.xpath(base_xpath_expression)
if xupdated_node_list:
xupdated_node = xupdated_node_list[0]
else:
ValueError('Wrong xpath expression:%r' % base_xpath_expression)
if base_xpath_expression not in xpath_expression_update_dict:
xpath_expression_update_dict[base_xpath_expression] = \
dict(xml=xupdated_node,
object=context,
xpath_expression=base_xpath_expression)
elif 'block_data' in original_xpath_expression:
"""XXX Use Qualified Names for block_data nodes
to avoid ambiguity
"""
xpath_expression = original_xpath_expression
get_target_parent = subnode.xpath('name()') in XUPDATE_INSERT_LIST
context = self.getContextFromXpath(object, xpath_expression,
get_target_parent=get_target_parent)
base_xpath_expression = xpath_expression\
[:xpath_expression.index('block_data')-1]
xupdated_node_list = xupdated_tree.xpath(base_xpath_expression)
if xupdated_node_list:
xupdated_node = xupdated_node_list[0]
else:
ValueError('Wrong xpath expression:%r' % base_xpath_expression)
if base_xpath_expression not in xpath_expression_update_dict:
xpath_expression_update_dict[base_xpath_expression] = \
dict(xml=xupdated_node,
object=context,
xpath_expression=base_xpath_expression)
elif subnode.xpath('name()') in XUPDATE_INSERT_OR_ADD_LIST:
conflict_list += self.addNode(xml=subnode, object=object,
previous_xml=previous_xml,
**kw)['conflict_list']
elif subnode.xpath('name()') == XUPDATE_DEL:
conflict_list += self.deleteNode(xml=subnode, object=object,
previous_xml=previous_xml, **kw)
elif subnode.xpath('name()') == XUPDATE_UPDATE:
conflict_list += self.updateNode(xml=subnode, object=object,
previous_xml=previous_xml, **kw)
# Now apply collected xupdated_node
for update_dict in xpath_expression_update_dict.itervalues():
update_dict.update(kw)
conflict_list += self.updateNode(previous_xml=previous_xml,
**update_dict)
return conflict_list
