__init__.py 文件源码

def _generate_error_graph(self, pgraph, full_msg, uri = None) :
        """
        Generate an error message into the graph. This method is usually used reacting on exceptions.

        Later versions of pyMicrodata may have more detailed error conditions on which it wishes to react. At the moment, this
        is fairly crude...
        """
        if pgraph == None :
            retval = Graph()
        else :
            retval = pgraph

        pgraph.bind( "dc","http://purl.org/dc/terms/" )
        pgraph.bind( "xsd",'http://www.w3.org/2001/XMLSchema#' )
        pgraph.bind( "ht",'http://www.w3.org/2006/http#' )
        pgraph.bind( "pyMicrodata",'http://www.w3.org/2012/pyMicrodata/vocab#' )

        bnode = BNode()
        retval.add((bnode, ns_rdf["type"], ns_micro["Error"]))
        retval.add((bnode, ns_dc["description"], Literal(full_msg)))
        retval.add((bnode, ns_dc["date"], Literal(datetime.datetime.utcnow().isoformat(),datatype=ns_xsd["dateTime"])))

        if uri != None :
            htbnode = BNode()
            retval.add( (bnode, ns_micro["context"],htbnode) )
            retval.add( (htbnode, ns_rdf["type"], ns_ht["Request"]) )
            retval.add( (htbnode, ns_ht["requestURI"], Literal(uri)) )

        if self.http_status != None and self.http_status != 200:
            htbnode = BNode()
            retval.add( (bnode, ns_micro["context"],htbnode) )
            retval.add( (htbnode, ns_rdf["type"], ns_ht["Response"]) )
            retval.add( (htbnode, ns_ht["responseCode"], URIRef("http://www.w3.org/2006/http#%s" % self.http_status)) )

        return retval