VPR-Frontend/client/data/src/main/java/res/DataController.java

97 lines
3.1 KiB
Java

package res;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.*;
public class DataController {
private static final String ALL_EVENTS_ENDPOINT = "http://localhost:8080/vpr/all-events";
private static final String ALL_USERS_ENDPOINT = "http://localhost:8080/vpr/all-users";
private static final String ADD_EVENT_ENDPOINT = "http://localhost:8080/vpr/add-event";
private static final String DELETE_EVENT_ENDPOINT = "http://localhost:8080/vpr/del-event";
private final HttpRequest httpRequest;
public DataController(){
httpRequest = new HttpRequest();
}
public void createEvent(Event event){
try {
System.out.println(httpRequest.sendPostRequest(ADD_EVENT_ENDPOINT, event.getAsUrlParam()));
} catch (Exception e) {
e.printStackTrace();
}
}
public void deleteEvent(int eventId){
try {
System.out.println(httpRequest.sendPostRequest(DELETE_EVENT_ENDPOINT, "eventId=" + eventId));
} catch (Exception e) {
e.printStackTrace();
}
}
public ArrayList<Event> getAllVisibleEvents() {
ArrayList<Event> eventList = new ArrayList<>();
try {
String jsonResponse = httpRequest.sendPostRequest(ALL_EVENTS_ENDPOINT, "userId=1");
System.out.println(jsonResponse);
ObjectMapper objectMapper = new ObjectMapper();
//String json = "{ \"color\" : \"Black\", \"type\" : \"BMW\" }";
for (Object obj : objectMapper.readValue(jsonResponse, Object[].class)){
ArrayList<Object> list = new ArrayList<>();
if (obj.getClass().isArray()) {
list = (ArrayList<Object>) Arrays.asList((Object[])obj);
} else if (obj instanceof Collection) {
list = new ArrayList<>((Collection<?>) obj);
}
eventList.add(new Event(list));
}
} catch (Exception e) {
e.printStackTrace();
}
return eventList;
}
public Event[] getAllEvents() {
Event[] eventList = null;
try {
String jsonResponse = httpRequest.sendGetRequest("http://localhost:8080/vpr/all-events-test");
eventList = parseJsonToEventList(jsonResponse);
for (Event e : eventList) {
System.out.println(e);
}
} catch (Exception e) {
e.printStackTrace();
}
return eventList;
}
private Event[] parseJsonToEventList(String jsonString) throws JsonProcessingException {
ArrayList<Event> eventList;
// Parse JSON
ObjectMapper objectMapper = new ObjectMapper();
//String json = "{ \"color\" : \"Black\", \"type\" : \"BMW\" }";
return objectMapper.readValue(jsonString, Event[].class);
}
}