@GET
	@Path("/v2.0/ports/{portId}")
	@Produces({MediaType.APPLICATION_JSON, OpenstackNetProxyConstants.TYPE_RDF})
	public Response showPort(@PathParam("portId") String portId, @HeaderParam("Accept") String accept) throws MalformedURLException, IOException{
		if (accept.equals(OpenstackNetProxyConstants.TYPE_RDF)){
			System.out.println(accept);
			String dataFromKB=PortOntology.showPort(portId);
			System.out.println(dataFromKB);
//			XmlTester t=new XmlTester();
			return Response.status(200).header("Access-Control-Allow-Origin", "*").entity(dataFromKB).build();
		}
		else{
			//Send HTTP request and receive a single Json content identified by an ID
			HttpURLConnection conn=HTTPConnector.HTTPConnect(new URL(this.URLpath+"/"+portId), OpenstackNetProxyConstants.HTTP_METHOD_GET, null);
			String response=HTTPConnector.printStream(conn);
			Object result;
			result=(ExtendedPort) JsonUtility.fromResponseStringToObject(response, ExtendedPort.class);
			int responseCode=conn.getResponseCode();
			HTTPConnector.HTTPDisconnect(conn);
			return Response.status(responseCode).header("Access-Control-Allow-Origin", "*").entity(result).build();
		}
	}