Parse an xml.dom Node object representing a target component into
        this object.

def parse_xml_node(self, node):
        '''Parse an xml.dom Node object representing a target component into
        this object.

        '''
        self.component_id = node.getAttributeNS(RTS_NS, 'componentId')
        self.instance_name = node.getAttributeNS(RTS_NS, 'instanceName')
        for c in node.getElementsByTagNameNS(RTS_EXT_NS, 'Properties'):
            name, value = parse_properties_xml(c)
            self._properties[name] = value
        return self