private PAKCRestServiceWrapperTO callService(
			SimulationInstanceTO simulationInstanceTO,
			SessionIndexTO sessionIndexTO, InputStream is) throws Exception {

		String session = null;
		PAKCRestServiceWrapperTO result = new PAKCRestServiceWrapperTO();
		PAKCRestServiceTO simulationInstance = new PAKCRestServiceTO();
		byte[] cfgFileByteArr = IOUtils.toByteArray(is);
		simulationInstance.setCfgFile(cfgFileByteArr);
		String parameter = Util.getJsonStrFromObject(simulationInstance);

		System.out
				.println("http://213.249.38.66:7072/SolverInterface/webresources/solver/authenticate"
						+ "/testusername/password");
		session = Request
				.Get("http://213.249.38.66:7072/SolverInterface/webresources/solver/authenticate"
						+ "/testusername/password").execute().returnContent()
				.asString();
		System.out.println(session);

		Request.Post(
				"http://213.249.38.66:7072/SolverInterface/webresources/ConfigurationFile/upload/"
						+ session)
				.bodyForm(
						Form.form().add("simulationInstance", parameter)
								.build()).execute();

		Request.Get(
				"http://213.249.38.66:7072/SolverInterface/webresources/solver/cad/init"
						+ "/" + session).execute();

		Integer status = HttpStatus.SC_NOT_FOUND;
		while(status!=HttpStatus.SC_OK){
			status = getStatus(session);
			Thread.sleep(15000);
		}
		System.out.println();
		System.out.println("OK");
		/*
		 * Thread.sleep(240000);
		 */

		//subscribeWithTopicLookup(session);
		System.out.println(" -------------- Done");
		String responseContentStr = Request
				.Get("http://213.249.38.66:7072/SolverInterface/webresources/accessResults/simulation/"
						+ session).execute().returnContent().asString();
		System.out.println(" -------------- Done");
		Gson gson = new GsonBuilder().create();
		simulationInstance = gson.fromJson(responseContentStr,PAKCRestServiceTO.class);
		
		InputStream datIS = new ByteArrayInputStream(simulationInstance.getDatFile());
		InputStream unvIS = new ByteArrayInputStream(simulationInstance.getUnvFile());

		System.out.println(" -------------- Done");
		result.setSessionID(session);
		result.setDatFile(datIS);
		result.setUnvFile(unvIS);

		System.out.println(" -------------- Done Result");
		return result;

	}

	private int getStatus(String session) throws ClientProtocolException, IOException {
		CloseableHttpClient httpclient = HttpClients.createDefault();
		int result = 0;
		try{
			HttpGet getRequest = new HttpGet(
					"http://213.249.38.66:7072/SolverInterface/webresources/accessResults/simulation"+ "/" + session);
			getRequest.addHeader("accept", "application/json");
			
			HttpResponse response = httpclient.execute(getRequest);
			result = response.getStatusLine().getStatusCode();
		}finally{
			httpclient.close();
			httpclient.getConnectionManager().shutdown();
		}
		return result;
	}