79 lines
2.4 KiB
Java
79 lines
2.4 KiB
Java
package at.reisinger.server.helper;
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import at.reisinger.Card;
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import at.reisinger.Cards;
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import at.reisinger.Package;
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import at.reisinger.User;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.core.type.TypeReference;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import java.util.ArrayList;
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import java.util.Map;
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/**
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* Hilfsfunktionen für Jackson Json
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*/
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public class JsonHelper {
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/**
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* Wandelt ein Package in form einer ArrayList<Card> om ein Json um
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* @param listCards Cards die in dem Json stehen sollen
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* @param name Name des Packages
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* @return Json String des Packages
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*/
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public static String packageListToJson(ArrayList<Card> listCards, String name){
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Package packageCards = new Package(new Cards(listCards),name, 5);
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return objToJson(packageCards);
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}
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/**
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* Wandelt ein Package Objekt in ein Json um
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* @param obj Objekt das in ein Json umgewandelt werden soll
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* @return Json String des Packages
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*/
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public static String objToJson(Object obj){
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ObjectMapper objectMapper = new ObjectMapper();
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objectMapper = new ObjectMapper();
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String packageJson = "";
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if(obj != null) {
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try {
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packageJson += objectMapper.writeValueAsString(obj);
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} catch (JsonProcessingException e) {
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packageJson = "Error: JsonProcessingException -> " + e.getMessage();
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}
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return packageJson;
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}else{
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return null;
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}
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}
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public static Map<String, Object> jsonPayloadToMap(String payload){
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ObjectMapper objectMapper = new ObjectMapper();
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try {
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return objectMapper.readValue(payload, new TypeReference<Map<String,Object>>(){});
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} catch (JsonProcessingException e) {
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e.printStackTrace();
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return null;
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}
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}
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public static String userToJson(User user){
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//User to json
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ObjectMapper objectMapper = new ObjectMapper();
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objectMapper = new ObjectMapper();
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String userJson = "";
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if(user != null) {
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try {
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userJson += objectMapper.writeValueAsString(user);
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} catch (JsonProcessingException e) {
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userJson = "Error: JsonProcessingException -> " + e.getMessage();
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}
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return userJson;
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}else{
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return null;
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}
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}
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}
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