+
−from logilab.mtconverter import TransformError, html_escape
+
−
+
−from cubicweb.common.view import StartupView
+
−from cubicweb.common.view import EntityView
+
−
+
−_ = unicode
+
−
+
−OWL_CARD_MAP = {'1': '<rdf:type rdf:resource="&owl;FunctionalProperty"/>',                      
+
−                '?': '<owl:maxCardinality rdf:datatype="&xsd;int">1</owl:maxCardinality>',
+
−                '+': '<owl:minCardinality rdf:datatype="&xsd;int">1</owl:minCardinality>',
+
−                '*': ''
+
−                }
+
−
+
−OWL_TYPE_MAP = {'String': 'xsd:string',
+
−                'Datetime': 'xsd:dateTime',
+
−                'Bytes': 'xsd:byte',
+
−                'Float': 'xsd:float',
+
−                'Boolean': 'xsd:boolean',
+
−                'Int': 'xsd:int',
+
−                'Date':'xsd:date',
+
−                'Time': 'xsd:time',
+
−                'Password': 'xsd:byte',
+
−                'Decimal' : 'xsd:decimal',
+
−                'Interval': 'xsd:duration'
+
−                }
+
−
+
−OWL_OPENING_ROOT = u'''<?xml version="1.0" encoding="UTF-8"?>
+
−<!DOCTYPE rdf:RDF [
+
−        <!ENTITY owl "http://www.w3.org/2002/07/owl#" >
+
−        <!ENTITY xsd "http://www.w3.org/2001/XMLSchema#" >
+
−]>        
+
−<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+
−    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
+
−    xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
+
−    xmlns:owl="http://www.w3.org/2002/07/owl#"
+
−    xmlns="http://logilab.org/owl/ontologies/%(appid)s#"
+
−    xmlns:%(appid)s="http://logilab.org/owl/ontologies/%(appid)s#"
+
−    xmlns:base="http://logilab.org/owl/ontologies/%(appid)s">
+
−
+
−  <owl:Ontology rdf:about="">
+
−    <rdfs:comment>
+
−    %(appid)s Cubicweb OWL Ontology                           
+
−    </rdfs:comment>
+
−  </owl:Ontology>'''
+
−
+
−OWL_CLOSING_ROOT = u'</rdf:RDF>'
+
−
+
−DEFAULT_SKIP_RELS = frozenset(('is', 'is_instance_of', 'identity',
+
−                               'owned_by', 'created_by'))
+
−
+
−class OWLView(StartupView):
+
−    """This view export in owl format schema database. It is the TBOX"""
+
−    id = 'owl'
+
−    title = _('owl')
+
−    templatable = False
+
−    content_type = 'application/xml' # 'text/xml'
+
−
+
−    def call(self, writeprefix=True):
+
−        skipmeta = int(self.req.form.get('skipmeta', True))
+
−        if writeprefix:
+
−            self.w(OWL_OPENING_ROOT % {'appid': self.schema.name})
+
−        self.visit_schema(skipmeta=skipmeta)
+
−        if writeprefix:
+
−            self.w(OWL_CLOSING_ROOT)
+
−        
+
−    def visit_schema(self, skiprels=DEFAULT_SKIP_RELS, skipmeta=True):
+
−        """get a layout for a whole schema"""
+
−        entities = sorted([eschema for eschema in self.schema.entities()
+
−                           if not eschema.is_final()])
+
−        if skipmeta:
+
−            entities = [eschema for eschema in entities
+
−                        if not eschema.meta]
+
−        self.w(u'<!-- classes definition -->')
+
−        for eschema in entities:
+
−            self.visit_entityschema(eschema, skiprels)
+
−            self.w(u'<!-- property definition -->')
+
−            self.visit_property_schema(eschema, skiprels)
+
−            self.w(u'<!-- datatype property -->')
+
−            self.visit_property_object_schema(eschema)
+
−
+
−    def visit_entityschema(self, eschema, skiprels=()):
+
−        """get a layout for an entity OWL schema"""
+
−        self.w(u'<owl:Class rdf:ID="%s">'% eschema)         
+
−        self.w(u'<!-- relations -->')    
+
−        for rschema, targetschemas, role in eschema.relation_definitions():
+
−            if rschema.type in skiprels:
+
−                continue
+
−            if not (rschema.has_local_role('read') or rschema.has_perm(self.req, 'read')):
+
−                continue
+
−            for oeschema in targetschemas:
+
−                label = rschema.type
+
−                if role == 'subject':
+
−                    card = rschema.rproperty(eschema, oeschema, 'cardinality')[0]
+
−                else:
+
−                    card = rschema.rproperty(oeschema, eschema, 'cardinality')[1]
+
−                cardtag = OWL_CARD_MAP[card]
+
−                if cardtag:
+
−                    self.w(u'''<rdfs:subClassOf>
+
− <owl:Restriction>
+
−  <owl:onProperty rdf:resource="#%s"/>
+
−  %s
+
− </owl:Restriction>
+
−</rdfs:subClassOf>
+
−''' % (label, cardtag))
+
−
+
−        self.w(u'<!-- attributes -->')
+
−              
+
−        for rschema, aschema in eschema.attribute_definitions():
+
−            if not (rschema.has_local_role('read') or rschema.has_perm(self.req, 'read')):
+
−                continue
+
−            aname = rschema.type
+
−            if aname == 'eid':
+
−                continue
+
−            self.w(u'''<rdfs:subClassOf>
+
−  <owl:Restriction>
+
−   <owl:onProperty rdf:resource="#%s"/>
+
−   <rdf:type rdf:resource="&owl;FunctionalProperty"/>
+
−  </owl:Restriction>
+
−</rdfs:subClassOf>'''                         
+
−                   % aname)
+
−        self.w(u'</owl:Class>')
+
−    
+
−    def visit_property_schema(self, eschema, skiprels=()):
+
−        """get a layout for property entity OWL schema"""
+
−        for rschema, targetschemas, role in eschema.relation_definitions():
+
−            if rschema.type in skiprels:
+
−                continue
+
−            if not (rschema.has_local_role('read') or rschema.has_perm(self.req, 'read')):
+
−                continue
+
−            for oeschema in targetschemas:
+
−                label = rschema.type
+
−                self.w(u'''<owl:ObjectProperty rdf:ID="%s">
+
− <rdfs:domain rdf:resource="#%s"/>
+
− <rdfs:range rdf:resource="#%s"/>
+
−</owl:ObjectProperty>                                                
+
−''' % (label, eschema, oeschema.type))
+
−
+
−    def visit_property_object_schema(self, eschema):
+
−        for rschema, aschema in eschema.attribute_definitions():
+
−            if not (rschema.has_local_role('read') or rschema.has_perm(self.req, 'read')):
+
−                continue
+
−            aname = rschema.type
+
−            if aname == 'eid':
+
−                continue
+
−            self.w(u'''<owl:DatatypeProperty rdf:ID="%s">
+
−  <rdfs:domain rdf:resource="#%s"/>
+
−  <rdfs:range rdf:resource="%s"/>
+
−</owl:DatatypeProperty>'''
+
−                   % (aname, eschema, OWL_TYPE_MAP[aschema.type]))
+
−
+
−            
+
−class OWLABOXView(EntityView):
+
−    '''This view represents a part of the ABOX for a given entity.'''
+
−    
+
−    id = 'owlabox'
+
−    title = _('owlabox')
+
−    templatable = False
+
−    content_type = 'application/xml' # 'text/xml'
+
−    
+
−    def call(self):
+
−        self.w(OWL_OPENING_ROOT % {'appid': self.schema.name})
+
−        self.wview('owl', None, writeprefix=False)
+
−        for i in xrange(self.rset.rowcount):
+
−            self.cell_call(i, 0)
+
−        self.w(OWL_CLOSING_ROOT)
+
−
+
−    def cell_call(self, row, col, skiprels=DEFAULT_SKIP_RELS):
+
−        self.wview('owlaboxitem', self.rset, row=row, col=col, skiprels=skiprels)
+
−
+
−        
+
−class OWLABOXItemView(EntityView):
+
−    '''This view represents a part of the ABOX for a given entity.'''    
+
−    id = 'owlaboxitem'
+
−    templatable = False
+
−    content_type = 'application/xml' # 'text/xml'
+
−
+
−    def cell_call(self, row, col, skiprels=DEFAULT_SKIP_RELS):
+
−        entity = self.complete_entity(row, col)
+
−        eschema = entity.e_schema
+
−        self.w(u'<%s rdf:ID="%s">' % (eschema, entity.eid))
+
−        self.w(u'<!--attributes-->')
+
−        for rschema, aschema in eschema.attribute_definitions():
+
−            if rschema.type in skiprels:
+
−                continue
+
−            if not (rschema.has_local_role('read') or rschema.has_perm(self.req, 'read')):
+
−                continue
+
−            aname = rschema.type
+
−            if aname == 'eid':
+
−                continue
+
−            try:
+
−                attr = entity.printable_value(aname, format='text/plain')
+
−                if attr:
+
−                    self.w(u'<%s>%s</%s>' % (aname, html_escape(attr), aname))
+
−            except TransformError:
+
−                pass
+
−        self.w(u'<!--relations -->')
+
−        for rschema, targetschemas, role in eschema.relation_definitions():
+
−            if rschema.type in skiprels:
+
−                continue
+
−            if not (rschema.has_local_role('read') or rschema.has_perm(self.req, 'read')):
+
−                continue
+
−            if role == 'object':
+
−                attr = 'reverse_%s' % rschema.type 
+
−            else:
+
−                attr = rschema.type        
+
−            for x in getattr(entity, attr):
+
−                self.w(u'<%s>%s %s</%s>' % (attr, x.id, x.eid, attr))
+
−        self.w(u'</%s>'% eschema)
+
−