models.py 文件源码

def parse_uri(self, uri=None):

        '''
        parses and cleans up possible uri inputs, return instance of rdflib.term.URIRef

        Args:
            uri (rdflib.term.URIRef,str): input URI

        Returns:
            rdflib.term.URIRef
        '''

        # no uri provided, assume root
        if not uri:
            return rdflib.term.URIRef(self.root)

        # string uri provided
        elif type(uri) == str:

            # assume "short" uri, expand with repo root
            if type(uri) == str and not uri.startswith('http'):
                return rdflib.term.URIRef("%s%s" % (self.root, uri))

            # else, assume full uri
            else:
                return rdflib.term.URIRef(uri)

        # already rdflib.term.URIRef
        elif type(uri) == rdflib.term.URIRef:
            return uri

        # unknown input
        else:
            raise TypeError('invalid URI input')