GGD/src/main/java/eu/hsrw/ias/ggd/ApiCall.java

package eu.hsrw.ias.ggd;

import Credentials.UserCredentials;
import Files.WriteFile;
import JSON_Unpack.ReadSensors4Partner;
import org.json.JSONArray;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;


public class ApiCall {
    private static String token = "0";
    private static String oldId = "1";


    public static HashMap<String, SensorData> FetchDataFromApi() throws Exception {


        UserCredentials userCredentials = new UserCredentials();
        final String username = userCredentials.getUsername();
        final String password = userCredentials.getPassword();
        final String homeRoot = UserCredentials.getHomeRoot();
        String outputToken;
        WriteFile writingIntoFile = new WriteFile();
        Date now; // to display current time
        now = new Date();
        HashMap<String,
                SensorData> finalOutput = new HashMap();
        if (token.equals(oldId)) {
            //do nothing
        } else {
            try {
                outputToken = SecurityToken.OnCallMethod(username, password);
                JSONObject obj = new JSONObject(outputToken);
                token = obj.getString("id");

                writingIntoFile.WriteFile(homeRoot + "securityToken.txt", token);
                oldId = token;
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        ReadSensors4Partner readSensors4Partner = new ReadSensors4Partner();
        ArrayList<String> outputValue = (readSensors4Partner.FetchSensor4Box("Germes", token));
        for(int i=0;i<outputValue.size();i++){
            Device device;
            JSONArray sensorDatas = new JSONArray(outputValue.get(i));

            for(int j=0; j<sensorDatas.length(); j++) { //15
                JSONObject sensorData = sensorDatas.getJSONObject(j);

                String deviceId = sensorData.getString("deviceId");

                double value = sensorData.getDouble("value");
                String sensorTag = sensorData.getString("sensorTag");
                String sensorId = sensorData.getString("sensorId");

                SensorData sd = new SensorData(sensorId, value, sensorTag);

                if(devices.containsKey(deviceId)) {
                    device = devices.get(deviceId);
                    device.addSensorData(sd);
                } else {
                    device = new Device(deviceId);
                    device.addSensorData(sd);
                    devices.put(deviceId, device);
                }
            }
        }
        return finalOutput;

    }

}