[TASK] Initial commit. Working tool.

triplify.py

@@ -0,0 +1,145 @@
+#SQL
+from sqlalchemy import *
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+Base = declarative_base()
+"""
+class HsHMembership(Base):
+	__tablename__ = 'membership'
+	id = Column(Integer, primary_key=True)
+	person = Column(Integer, ForeignKey('person.id'))
+	organizational_unit = Column(Integer)
+	start_date = Column(DateTime)
+	end_date = Column(DateTime)
+	active = Column(String)
+	business_role = Column(Integer)
+	mPerson = relationship("HsHPerson")
+"""
+class HsHPerson(Base):
+	__tablename__ = 'person'
+	id = Column(Integer, primary_key=True)
+	name = Column(String)
+	firstname = Column(String)
+	title_prefix = Column(String)
+	title_suffix = Column(String)
+	account = Column(Integer)
+	gender = Column(String)
+	birthday = Column(DateTime) #TODO: without timezone!
+	#memberships = relationship("HsHMembership", backref='person')
+
+class HsHTelephone(Base):
+	__tablename__ = 'telephone'
+	id = Column(Integer, primary_key=True)
+	call_number = Column(String)
+	description = Column(String)
+
+#RDF
+from rdflib import Namespace
+from rdfalchemy import rdfSingle
+from rdfalchemy.rdfSubject import rdfSubject
+
+from rdflib import Literal, BNode, Namespace, URIRef
+from rdflib import RDF, RDFS, Graph, OWL
+from rdflib.namespace import XSD
+
+foaf = Namespace('http://xmlns.com/foaf/0.1/')
+core = Namespace('http://vivoweb.org/ontology/core#')
+vitro = Namespace('http://vitro.mannlib.cornell.edu/ns/vitro/0.7')
+vcard = Namespace('http://www.w3.org/2006/vcard/ns#')
+obo = Namespace('http://purl.obolibrary.org/obo/')
+local = Namespace('http://vivo.bib.hs-hannover.de/person')
+hsh = Namespace('http://vivo.bib.hs-hannover.de/ontology/hshOntologie#')
+
+def get_graph():
+	"""Small little helper to create graph with namespaces ;-)"""
+	g = rdfSubject.db
+	g.bind('foaf', foaf)
+	g.bind('core', core)
+	g.bind('vitro', vitro)
+	g.bind('vcard', vcard)
+	g.bind('obo', obo)
+	g.bind('local', local)
+	g.bind('hsh', hsh)
+	return g
+
+class IdSequence:
+	"""Small Helper for easy sequences"""
+	def __init__(self, start):
+		self.num = start - 1
+	def getNext(self):
+		self.num += 1
+		return self.num
+
+class Thing(rdfSubject):
+    rdf_type = OWL.Thing
+    label = rdfSingle(RDFS.label)
+
+class hshThing(Thing):
+	rdf_type = hsh.hshLocal
+
+class Person(hshThing):
+    rdf_type = foaf.Person
+    firstname = rdfSingle(vcard.givenName)
+    name = rdfSingle(vcard.familyName)
+    hasContactInfo = rdfSingle(obo.ARG_2000028)
+    label = rdfSingle(RDFS.label)
+
+class ContactInfo(Thing):
+	rdf_type = vcard.Individual
+	hasTitle = rdfSingle(vcard.hasTitle)
+	contactInformationFor = rdfSingle(obo.ARG_2000029)
+
+class Title(Thing):
+	rdf_type = vcard.Title
+	title = rdfSingle(vcard.title)
+
+def createRDFFromSQL():
+	"""Fetch data from postgres and map them into RDF"""
+	engine = create_engine("postgresql://hshinfo:hshinfotest@141.71.2.152/hshinfo")
+	session = sessionmaker(bind=engine)()
+	persons = session.query(HsHPerson)
+
+	g = get_graph()
+
+	additionalIdSeq = IdSequence(2000000000) #don't care sequence
+	for count, sqlP in enumerate(persons):
+		combined_title = ''
+		if sqlP.title_prefix != None:
+			combined_title = sqlP.title_prefix
+		if sqlP.title_suffix != None:
+			if combined_title == '':
+				combined_title = sqlP.title_suffix
+			else:
+				combined_title += ' ' + sqlP.title_suffix
+
+		person_uri = URIRef("%s/%s" % (local, sqlP.id))
+		rdfP = hshThing(person_uri)
+		rdfP = Person(person_uri) #WTF?!
+		rdfP.firstname = sqlP.firstname;
+		rdfP.name = sqlP.name;
+		rdfP.label = "%s, %s" % (sqlP.name, sqlP.firstname)
+		# If there is a title to add, do it.
+		if(combined_title != ''):
+			title_uri = URIRef("%s/%s" % (local, additionalIdSeq.getNext()))
+			rdfTitle = Title(title_uri)
+			rdfTitle.title = combined_title
+
+			contact_info_uri = URIRef("%s/%s" % (local, additionalIdSeq.getNext()))
+			rdfCi = ContactInfo(contact_info_uri)
+			rdfCi.hasTitle = rdfTitle
+			rdfCi.contactInformationFor = rdfP
+
+			rdfP.hasContactInfo = rdfCi
+			break
+	triples = g.serialize(format='n3')
+	g.close()
+
+	print(triples)
+
+	f = open('data.n3', 'wb')
+	f.write(triples)
+	f.close()
+
+if __name__ == '__main__':
+	createRDFFromSQL()