serviceCall

    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;
    }