def __init__(self):
super(XmlMerger,self).__init__()
self.actions = []
self.errorListener = ErrorListener()
self.firstXml = None
self.secondXml = None
pass
class XmlMerger(object):
def __init__(self):
super(XmlMerger,self).__init__()
self.actions = []
self.errorListener = ErrorListener()
self.firstXml = None
self.secondXml = None
pass
def initialise(self, firstXmlPath, secondXmlPath):
self.firstXml = GraphRootXmlDom(firstXmlPath)
if self.firstXml.initialise() is False:
return False
pass
self.secondXml = GraphRootXmlDom(secondXmlPath)
if self.secondXml.initialise() is False:
return False
pass
return True
pass
def initErrorReporting(self, errorReporting):
ErrorHandler.addListener(self.errorListener)
ErrorHandler.setErrorReporting(errorReporting)
return True
pass
def initLogging(self, logDir):
logger = Logger()
logger.initialise(logDir)
ErrorHandler.importantMessage("Log created %s" % logger.getFileName() )
self.errorListener.setLogger(logger)
return True
pass
def addAction(self, ruleName, query, Policy = QUERY_POLICY_BOTH, **params):
action = dict( Query = query, RuleName = ruleName, Params = params, Policy = Policy )
self.actions.append(action)
pass
def save(self, path):
return self.firstXml.save(path)
pass
def _initActionBoth(self, action, query, firstDomRoot, secondDomRoot ):
firstResult = query.execute(firstDomRoot)
if firstResult is None:
ErrorHandler.warning( "xml query failed %s on %s" % (query, self.firstXml) )
return False
pass
secondResult = query.execute(secondDomRoot)
if secondResult is None:
ErrorHandler.warning( "xml query failed %s on %s" % (query, self.secondXml) )
return False
pass
if len(secondResult) != len(firstResult):
ErrorHandler.warning( "xml query %s results have incompatible length %i != %i"
% (query, len(secondResult),len(firstResult) ) )
return False
pass
if len(secondResult) != 1:
ErrorHandler.warning( "xml query %s only single row result supported , you got %i"
% (query, len(secondResult) ) )
return False
pass
action["Params"]["FirstXmlInput"] = firstResult[0]
action["Params"]["SecondXmlInput"] = secondResult[0]
return True
pass
def _initActionFirst(self, action, query, firstDomRoot ):
firstResult = query.execute(firstDomRoot)
if firstResult is None:
ErrorHandler.warning( "xml query failed %s on %s" % (query, self.firstXml) )
return False
pass
if len(firstResult) != 1:
ErrorHandler.warning( "xml query %s only single row result supported , you got %i"
% (query, len(firstResult) ) )
return False
pass
action["Params"]["FirstXmlInput"] = firstResult[0]
return True
pass
def merge(self):
firstDomRoot = self.firstXml.getRootNode()
secondDomRoot = self.secondXml.getRootNode()
for action in self.actions:
query = action["Query"]
if action["Policy"] == QUERY_POLICY_BOTH:
if self._initActionBoth(action, query, firstDomRoot, secondDomRoot) is False:
continue
pass
pass
elif action["Policy"] == QUERY_POLICY_ONLY_NEW:
if self._initActionFirst(action, query, firstDomRoot) is False:
continue
pass
pass
else:
ErrorHandler.error("Merge Query Policy not Support %s" % str(action["Policy"]) )
continue
pass
rule = MergeRuleFactory.getRule( action["RuleName"], action["Params"] )
if rule is None:
ErrorHandler.warning( "Merge rule %s don`t exist" % action["RuleName"])
continue
pass
if rule.run() is False:
ErrorHandler.warning( "Merge rule return False %s %s" % (action["RuleName"], query) )
pass
pass
pass
pass
