Add: GsonHandler.java

Add: localMaps.json
Update: MapData.java (Attributes + Methods added)
Update: pom.xml (added GSON Dependency)
Update: module-info.java (added GSON)
Update: Persistence.java

pom.xml

@@ -57,6 +57,11 @@
             <version>12.4.2.jre11</version>
         </dependency>
 
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.10.1</version>
+        </dependency>
 
     </dependencies>
 

src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/GsonHandler.java

+package de.hdm_stuttgart.battlearena.Persistance.Classes;
+
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+
+public class GsonHandler {
+    Persistence singleton = Persistence.getInstance();
+    Gson gson = new Gson();
+
+    private static final Logger log = LogManager.getLogger(GsonHandler.class);
+    Type mapDataType = new TypeToken<ArrayList<MapData>>(){}.getType();
+
+    public void loadMaps() {
+        try (FileReader reader = new FileReader("src/main/resources/maps/localMaps.json")) {
+            singleton.maps = gson.fromJson(reader, mapDataType);
+            log.info("GSON - Maps successfully loaded from JSON");
+        } catch (Exception e) {
+            log.info(e);
+            log.info("GSON - Loading Maps from JSON failed");
+        }
+    }
+
+    public void updateMaps() {
+        try (FileWriter writer = new FileWriter("src/main/resources/maps/localMaps.json")) {
+            gson.toJson(singleton.maps, writer);
+            log.info("GSON - Maps successfully written to JSON");
+        } catch (
+                Exception e) {
+            log.info(e);
+            log.info("GSON - Saving SingleBookings to JSON failed");
+        }
+    }
+}

src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/MapData.java

 package de.hdm_stuttgart.battlearena.Persistance.Classes;
-
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.LogManager;
 
 public class MapData {
     private static final Logger log = LogManager.getLogger(MapData.class);
+
+    private String mapID;
+    private String mapName;
+    private int mapHeight;
+    private int mapWidth;
+    private String mapData;
+
+    protected MapData(String mapID, String mapName, String mapSize, String mapData) {
+    this.mapID = mapID;
+    this.mapName = mapName;
+    this.mapData = mapData;
+
+    sizeParser(mapSize);
+    }
+
+    private void sizeParser(String mapSize){
+        int whereX = 0;
+
+        for(int i = 0; i > mapSize.length(); i++){
+            if(mapSize.substring(i, i+1).equals("x")){
+                whereX = i;
+                break;
+            }
+        }
+        mapHeight = Integer.valueOf(mapSize.substring(0, whereX));
+        mapWidth = Integer.valueOf(mapSize.substring(whereX));
+    }
+
 }

src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/Persistence.java

@@ -9,19 +9,16 @@ import java.util.LinkedHashMap;
 
 public class Persistence {
     private static final Logger log = LogManager.getLogger(Persistence.class);
-
     private static final Persistence singleton = new Persistence();
-
-    private Persistence (){}
-
     private Connection connection;
-
     private LinkedHashMap<String, String> mapNames;
-    private String map;
     private int[] sizeArrayInt;
     private String sizeString;
-
     protected static PlayerStatistics statistics = new PlayerStatistics("", 0,0,0,0,0,0);
+    protected ArrayList<MapData> maps = new ArrayList<MapData>();
+    private GsonHandler gsonHandler = new GsonHandler();
+
+    private Persistence (){}
 
     public void createPlayer(String player){
         statistics.setPlayerName(player);
@@ -31,6 +28,4 @@ public class Persistence {
         return singleton;
     }
 
-
-
 }

src/main/java/module-info.java

@@ -4,8 +4,10 @@ module gui {
     requires javafx.media;
     requires org.apache.logging.log4j;
     requires java.sql;
+    requires com.google.gson;
 
     opens de.hdm_stuttgart.battlearena to javafx.fxml;
     exports de.hdm_stuttgart.battlearena.Main;
     exports de.hdm_stuttgart.battlearena.Controller;
+    opens de.hdm_stuttgart.battlearena.Persistance.Classes to com.google.gson, javafx.fxml;
 }

src/main/resources/maps/localMaps.json

+{
+  "name": "maps",
+  "version": "1.0.0",
+  "dependencies": {
+  }
+}