Completed new antivpn plugin

Common/src/main/java/dev/brighten/antivpn/api/VPNConfig.java

@@ -0,0 +1,13 @@
+package dev.brighten.antivpn.api;
+
+public interface VPNConfig {
+
+    String getLicense();
+
+    boolean cachedResults();
+
+    String getKickString();
+
+    void update();
+
+}

Common/src/main/java/dev/brighten/antivpn/api/VPNExecutor.java

@@ -0,0 +1,56 @@
+package dev.brighten.antivpn.api;
+
+import dev.brighten.antivpn.AntiVPN;
+import dev.brighten.antivpn.utils.VPNResponse;
+import dev.brighten.antivpn.utils.json.JSONException;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.function.Consumer;
+
+public abstract class VPNExecutor {
+    public static ExecutorService threadExecutor = Executors.newSingleThreadExecutor();
+
+    private static final Map<String, VPNResponse> responseCache = new HashMap<>();
+
+    public abstract void registerListeners();
+
+    public abstract void runCacheReset();
+
+    public void resetCache() {
+        responseCache.clear();
+    }
+
+    public abstract void shutdown();
+
+    public void checkIp(String ip, boolean cachedResults, Consumer<VPNResponse> result) {
+        threadExecutor.execute(() -> result.accept(responseCache.compute(ip, (key, val) -> {
+            if(val == null) {
+                try {
+                    return AntiVPN.getVPNResponse(ip, AntiVPN.getInstance().getConfig().getLicense(), cachedResults);
+                } catch (JSONException | IOException e) {
+                    e.printStackTrace();
+                }
+            }
+
+            return val;
+        })));
+    }
+
+    public VPNResponse checkIp(String ip, boolean cachedResults) {
+        return responseCache.compute(ip, (key, val) -> {
+            if(val == null) {
+                try {
+                    return AntiVPN.getVPNResponse(ip, AntiVPN.getInstance().getConfig().getLicense(), cachedResults);
+                } catch (JSONException | IOException e) {
+                    e.printStackTrace();
+                }
+            }
+
+            return val;
+        });
+    }
+}