def analyze(self):
""" analyze()
analyze will gather information about the nodes and references contained in a XML File
to facilitate later preprocessing stages that adresss XML dependency issues
returns: No return value
"""
nodeIds = []
ns = self.nodeset.getElementsByTagName("UANodeSet")
# We need to find out what the namespace calls itself and other referenced, as numeric id's are pretty
# useless sans linked nodes. There is two information sources...
self.extractNamespaceURIs() # From <URI>...</URI> definitions
for key in ns[0].attributes.keys(): # from xmlns:sX attributes
if "xmlns:" in key: # Any key: we will be removing these qualifiers from Values later
self.namespaceQualifiers.append(key.replace("xmlns:",""))
if "xmlns:s" in key: # get a numeric nsId and modelname/uri
self.namespaceOrder.append((int(key.replace("xmlns:s","")), ns[0].getAttribute(key)))
# Get all nodeIds contained in this XML
for nd in ns[0].childNodes:
if nd.nodeType != nd.ELEMENT_NODE:
continue
if nd.hasAttribute(u'NodeId'):
self.containedNodes.append( (opcua_node_id_t(nd.getAttribute(u'NodeId')), nd) )
refs = nd.getElementsByTagName(u'References')[0]
for ref in refs.childNodes:
if ref.nodeType == ref.ELEMENT_NODE:
self.referencedNodes.append( (opcua_node_id_t(ref.firstChild.data), ref) )
logger.debug("Nodes: " + str(len(self.containedNodes)) + " References: " + str(len(self.referencedNodes)))
def preprocess_linkDependantModels(self):
revertToStochastic = [] # (doc, int id), where id was not resolvable using model URIs
# Attemp to identify the model relations by using model URIs in xmlns:sX or <URI> contents
for doc in self.preProcDocuments:
nsid = doc.getNamespaceId()
dependencies = doc.getNamespaceDependencies()
for d in dependencies:
if d != nsid and d != 0:
# Attempt to identify the namespace URI this d referes to...
nsUri = doc.getReferencedNamespaceUri(d) # FIXME: This could actually fail and return ""!
logger.info("Need a namespace referenced as " + str(d) + ". Which hopefully is " + nsUri)
targetDoc = None
for tgt in self.preProcDocuments:
# That model, whose URI is known but its current id is not, will
# refer have referred to itself as "1"
if tgt.getReferencedNamespaceUri(1) == nsUri:
targetDoc = tgt
break
if not targetDoc == None:
# Found the model... relink the references
doc.reassignReferencedNamespaceId(d, targetDoc.getNamespaceId())
continue
else:
revertToStochastic.append((doc, d))
logger.warn("Failed to reliably identify which XML/Model " + os.path.basename(doc.originXML) + " calls ns=" +str(d))
for (doc, d) in revertToStochastic:
logger.warn("Attempting to find stochastic match for target namespace ns=" + str(d) + " of " + os.path.basename(doc.originXML))
# Copy all references to the given namespace
refs = []
matches = [] # list of (match%, targetDoc) to pick from later
for ref in doc.referencedNodes:
if ref[0].ns == d:
refs.append(opcua_node_id_t(str(ref[0])))
for tDoc in self.preProcDocuments:
tDocId = tDoc.getNamespaceId()
# Scenario: If these references did target this documents namespace...
for r in refs:
r.ns = tDocId
r.toString()
# ... how many of them would be found!?
c = self.testModelCongruencyAgainstReferences(tDoc, refs)
print(c)
if c>0:
matches.append((c, tDoc))
best = (0, None)
for m in matches:
print(m[0])
if m[0] > best[0]:
best = m
if best[1] != None:
logger.warn("Best match (" + str(best[1]*100) + "%) for what " + os.path.basename(doc.originXML) + " refers to as ns="+str(d)+" was " + os.path.basename(best[1].originXML))
doc.reassignReferencedNamespaceId(d, best[1].getNamespaceId())
else:
logger.error("Failed to find a match for what " + os.path.basename(doc.originXML) + " refers to as ns=" + str(d))
def analyze(self):
""" analyze()
analyze will gather information about the nodes and references contained in a XML File
to facilitate later preprocessing stages that adresss XML dependency issues
returns: No return value
"""
nodeIds = []
ns = self.nodeset.getElementsByTagName("UANodeSet")
# We need to find out what the namespace calls itself and other referenced, as numeric id's are pretty
# useless sans linked nodes. There is two information sources...
self.extractNamespaceURIs() # From <URI>...</URI> definitions
for key in ns[0].attributes.keys(): # from xmlns:sX attributes
if "xmlns:" in key: # Any key: we will be removing these qualifiers from Values later
self.namespaceQualifiers.append(key.replace("xmlns:", ""))
if "xmlns:s" in key: # get a numeric nsId and modelname/uri
self.namespaceOrder.append(
(int(key.replace("xmlns:s", "")),
re.sub("[A-Za-z0-9-_\.]+\.[xXsSdD]{3}$", "",
ns[0].getAttribute(key))))
# Get all nodeIds contained in this XML
for nd in ns[0].childNodes:
if nd.nodeType != nd.ELEMENT_NODE:
continue
if nd.hasAttribute(u'NodeId'):
self.containedNodes.append(
(opcua_node_id_t(nd.getAttribute(u'NodeId')), nd))
refs = nd.getElementsByTagName(u'References')[0]
for ref in refs.childNodes:
if ref.nodeType == ref.ELEMENT_NODE:
self.referencedNodes.append(
(opcua_node_id_t(ref.firstChild.data), ref))
logger.debug("Nodes: " + str(len(self.containedNodes)) +
" References: " + str(len(self.referencedNodes)))
def preprocess_linkDependantModels(self):
revertToStochastic = [
] # (doc, int id), where id was not resolvable using model URIs
# Attemp to identify the model relations by using model URIs in xmlns:sX or <URI> contents
for doc in self.preProcDocuments:
nsid = doc.getNamespaceId()
dependencies = doc.getNamespaceDependencies()
for d in dependencies:
if d != nsid and d != 0:
# Attempt to identify the namespace URI this d referes to...
nsUri = doc.getReferencedNamespaceUri(
d) # FIXME: This could actually fail and return ""!
logger.info("Need a namespace referenced as " + str(d) +
". Which hopefully is " + nsUri)
targetDoc = None
for tgt in self.preProcDocuments:
# That model, whose URI is known but its current id is not, will
# refer have referred to itself as "1"
if tgt.getReferencedNamespaceUri(1) == nsUri:
targetDoc = tgt
break
if not targetDoc == None:
# Found the model... relink the references
doc.reassignReferencedNamespaceId(
d, targetDoc.getNamespaceId())
continue
else:
revertToStochastic.append((doc, d))
logger.warn(
"Failed to reliably identify which XML/Model " +
os.path.basename(doc.originXML) + " calls ns=" +
str(d))
for (doc, d) in revertToStochastic:
logger.warn(
"Attempting to find stochastic match for target namespace ns="
+ str(d) + " of " + os.path.basename(doc.originXML))
# Copy all references to the given namespace
refs = []
matches = [] # list of (match%, targetDoc) to pick from later
for ref in doc.referencedNodes:
if ref[0].ns == d:
refs.append(opcua_node_id_t(str(ref[0])))
for tDoc in self.preProcDocuments:
tDocId = tDoc.getNamespaceId()
# Scenario: If these references did target this documents namespace...
for r in refs:
r.ns = tDocId
r.toString()
# ... how many of them would be found!?
c = self.testModelCongruencyAgainstReferences(tDoc, refs)
print(c)
if c > 0:
matches.append((c, tDoc))
best = (0, None)
for m in matches:
print(m[0])
if m[0] > best[0]:
best = m
if best[1] != None:
logger.warn("Best match (" + str(best[1] * 100) +
"%) for what " + os.path.basename(doc.originXML) +
" refers to as ns=" + str(d) + " was " +
os.path.basename(best[1].originXML))
doc.reassignReferencedNamespaceId(d, best[1].getNamespaceId())
else:
logger.error("Failed to find a match for what " +
os.path.basename(doc.originXML) +
" refers to as ns=" + str(d))
