class TagsPayload(GenericPayload):
def __init__(self, payload, oid):
self.__tags = []
self.__model = RDF2Go.getModelFactory().createModel();
self.__model.open();
self.__content = TaggedContent(self.__model, "urn:" + md5.new(oid).hexdigest(), True);
if payload is None:
self.setId("tags.rdf")
self.setLabel("Tags")
self.setContentType("application/rdf+xml")
self.setType(PayloadType.Annotation)
else:
GenericPayload.__init__(self, payload)
self.__model.readFrom(payload.getInputStream())
tags = self.__content.getAllTagged_as().asArray()
for tag in tags:
labels = tag.getAllTaglabel_asNode_().asArray()
for label in labels:
self.__tags.append(label)
self.setType(PayloadType.Annotation)
def addTag(self, tag):
tagNode = self.__createTag(tag)
self.__content.addTagged(tagNode);
def removeTag(self, tag):
tagNode = self.__createTag(tag)
self.__content.removeTagged(tagNode);
def __createTag(self, tag):
encodedTag = URLEncoder.encode(tag, "UTF-8")
tagNode = Tag(self.__model, "urn:tags:" + encodedTag, True)
tagNode.setMeans(self.__model.createURI("urn:tags:" + encodedTag));
tagNode.setTaglabel(self.__model.createPlainLiteral(tag))
return tagNode
def getTags(self):
return self.__tags
def getInputStream(self):
rdf = self.__model.serialize(Syntax.RdfXml)
return ByteArrayInputStream(array.array('b', rdf.encode("UTF-8")))
def close(self):
self.__model.close()
