Initial Code

src/main/java/de/npid7/mc/Configs/PluginConfig.java

@@ -0,0 +1,81 @@
+package de.npid7.mc.Configs;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+import java.util.Vector;
+import org.bukkit.inventory.ItemStack;
+
+public class PluginConfig {
+  File file = null;
+
+  int cfg_version = 0;
+  HashMap<UUID, String> players_joined = new HashMap<>();
+  public PluginConfig(String path) {
+    file = new File(path);
+    Load();
+  }
+
+  public boolean Load() {
+    if (!file.exists()) {
+      return false;
+    }
+    try {
+      FileReader r = new FileReader(file);
+      JsonParser prs = new JsonParser();
+      JsonObject js = prs.parse(r).getAsJsonObject();
+      r.close();
+      int pver = js.get("version").getAsInt();
+      if (pver != cfg_version) {
+        file.delete();
+        return false;
+      }
+      for (Map.Entry<String, JsonElement> e :
+          js.get("players_joined").getAsJsonObject().entrySet()) {
+        players_joined.put(UUID.fromString(e.getKey()), e.getValue().getAsString());
+      }
+    } catch (IOException e) {
+      e.printStackTrace();
+      return true;
+    }
+    return false;
+  }
+
+  public boolean Check(UUID id, String name) {
+    if (players_joined.containsKey(id)) {
+      return true;
+    }
+    players_joined.put(id, name);
+    Save();
+    return false;
+  }
+
+  public boolean Save() {
+    JsonObject js = new JsonObject();
+    js.addProperty("version", cfg_version);
+    JsonObject pjm = new JsonObject();
+    for (Map.Entry<UUID, String> e : players_joined.entrySet()) {
+      pjm.addProperty(e.getKey().toString(), e.getValue());
+    }
+    js.add("players_joined", pjm);
+    try {
+      FileWriter w = new FileWriter(file);
+      Gson g = new GsonBuilder().setPrettyPrinting().create();
+      g.toJson(js, w);
+      w.close();
+    } catch (IOException e) {
+      e.printStackTrace();
+      return true;
+    }
+    return false;
+  }
+}