class Dia:
def __init__(self, data, vok, modifier='all'):
# body of the constructor
self._datafile = data
g = Graph()
self._data = g.parse(self._datafile, format="turtle")
self._namespaces = NamespaceManager(self._data)
self._vok = vok
self._modifier = modifier
self._namespaces.bind("yago", "http://yago-knowledge.org/resource/")
self._namespaces.bind("rdf",
"http://www.w3.org/1999/02/22-rdf-syntax-ns#")
self._namespaces.bind("foaf", "http://xmlns.com/foaf/0.1/")
self._namespaces.bind("dbp", "http://dbpedia.org/property/")
self._namespaces.bind("owl", "http://www.w3.org/2002/07/owl#")
self._namespaces.bind("dc", "http://purl.org/dc/elements/1.1/")
self._namespaces.bind("rdfs", "http://www.w3.org/2000/01/rdf-schema#")
self._namespaces.bind("dbo", "http://dbpedia.org/ontology/")
self._namespaces.bind("rss", "http://purl.org/rss/1.0/")
self._namespaces.bind("skos", "http://www.w3.org/2004/02/skos/core#")
self._namespaces.bind("void", "http://rdfs.org/ns/void#")
self._namespaces.bind("dn", "http://purl.org/datanode/ns/")
self._namespaces.bind("ex", "http://purl.org/datanode/ex/")
self._namespaces.bind("dct", "http://purl.org/dc/terms/")
def entities(self):
entities = []
for s, p, o in self._data.triples((None, None, None)):
if s not in entities:
entities.append(s)
if o not in entities and isinstance(o, URIRef):
entities.append(s)
return entities
def jsobject(self):
print('var nodes=[')
first = True
nodes = []
for s, p in list(self._data.subject_predicates(None)):
if str(p).startswith(
'http://purl.org/datanode/ns/') and s not in nodes:
nodes.append(s)
for p, s in list(self._data.predicate_objects(None)):
if str(p).startswith(
'http://purl.org/datanode/ns/') and s not in nodes:
nodes.append(s)
for node in nodes:
if first:
first = False
else:
print(",")
links = []
for (pred, obj) in self._data.predicate_objects(node):
if str(pred).startswith('http://purl.org/datanode/ns/'):
links.append({
'target': nodes.index(obj),
'label': self.label(pred),
'uri': pred.encode('utf-8'),
'type': 'default',
'weight': 1
})
n = {
'id': str(nodes.index(node)),
'uri': node.encode('utf-8'),
'label': self.label(node),
'links': links
}
print(json.dumps(n))
print("]")
def label(self, o, useHtml=False):
if o in vok.graph().subjects():
return vok.label(o)
else:
if isinstance(o, URIRef):
if str(o).startswith('http://purl.org/datanode/ex/'):
# hack, override ex namespace
ns = "http://purl.org/datanode/ex/"
if str(o).find('#') > -1:
ns = str(o).rsplit('#')[0] + '#'
else:
ns = str(o).rsplit('/')[0] + '/'
self._namespaces.bind('ex', ns)
try:
return next(iter(self._data.objects(o, RDFS.label) or []),
self._namespaces.qname(o))
except:
return o.encode('utf-8')
if isinstance(o, BNode):
return str(o)
else:
# literal
if useHtml:
html = re.sub("([^\.?!]{20,30}[\.?!])|([^,0-9]{20,30},)",
"\0<br/>", str(o))
html = re.sub("[0-9]{1,3}\)", "<br/>\0", html)
html = cgi.escape(html)
html = "<html>" + html + "</html>"
html = re.sub("\<", '<', html)
html = re.sub("\>", '>', html)
return html
else:
return o.encode('utf-8')
def graphml(self):
print("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>")
print("<graphml \n\txmlns=\"http://graphml.graphdrawing.org/xmlns\" ")
print("\txmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" ")
print("\txmlns:y=\"http://www.yworks.com/xml/graphml\" ")
print("\txmlns:yed=\"http://www.yworks.com/xml/yed/3\" ")
print(
"\txsi:schemaLocation=\"http://graphml.graphdrawing.org/xmlns http://www.yworks.com/xml/schema/graphml/1.1/ygraphml.xsd\">"
)
print(
"\t\t<key attr.name=\"label\" attr.type=\"string\" for=\"node\" id=\"k_label\"/>"
)
print(
"\t\t<key for=\"node\" id=\"key_nodegraphics\" yfiles.type=\"nodegraphics\"/>"
)
print(
"\t\t<key for=\"edge\" id=\"key_edgegraphics\" yfiles.type=\"edgegraphics\"/>"
)
#puts "<key attr.name=\"description\" attr.type=\"string\" for=\"node\" id=\"d5\"/>"
print("\t<graph edgedefault=\"directed\" id=\"G\">")
for node in self.entities():
print("<!-- " + node + " -->")
nodel = self.label(node, True)
print("<!-- " + nodel.encode('utf-8') + " -->")
print("\t\t<node id=\"n" + str(id(node)) + "\">")
print("\t\t\t<data key=\"k_label\"><![CDATA[" +
node.encode('utf-8') + "]]></data>")
print("\t\t\t<data key=\"d5\"><![CDATA[" + node.encode('utf-8') +
"]]></data>")
print("\t\t\t<data key=\"key_nodegraphics\">")
print(
"\t\t\t\t<y:GenericNode configuration=\"com.yworks.flowchart.start1\">"
)
print("\t\t\t\t\t<y:Fill color=\"#FFFFFF\" transparent=\"true\"/>")
print(
"\t\t\t\t\t<y:BorderStyle color=\"#FFFFFF\" transparent=\"true\" type=\"line\" width=\"0.0\"/>"
)
print("\t\t\t\t\t<y:NodeLabel ")
print(
">" + nodel.encode('utf-8') +
"<y:LabelModel><y:SmartNodeLabelModel distance=\"4.0\"/></y:LabelModel> "
)
print("<y:ModelParameter> ")
print("<y:SmartNodeLabelModelParameter ")
print("/>")
print("</y:ModelParameter>")
print("</y:NodeLabel>")
print("\t\t\t\t</y:GenericNode>")
print("\t\t\t</data>")
print("\t\t</node>")
for (link, to) in self._data.predicate_objects(node):
edgeId = 0
print("<!-- " + to.encode('utf-8') + " -->")
edgeId = str(id(node)) + "_" + str(id(link)) + "_" + str(
id(to))
edgel = self.label(link, True)
print("\t\t<edge id=\"e_" + edgeId + "\" source=\"n" +
str(id(node)) + "\" target=\"n" + str(id(to)) + "\">")
print("\t\t\t<data key=\"key_edgegraphics\">")
print("\t\t\t<y:BezierEdge>")
print(
"\t\t\t\t<y:LineStyle color=\"#000000\" type=\"line\" width=\"2.0\"/>"
)
print(
"\t\t\t\t<y:Arrows source=\"none\" target=\"white_delta\"/>"
)
print("\t\t\t\t<y:EdgeLabel>" + edgel.encode('utf-8') +
"</y:EdgeLabel>")
print("\t\t\t</y:BezierEdge>")
print("\t\t\t</data>")
print("\t\t</edge>")
print("\t</graph>")
print("</graphml>")
