~

src/src/main/java/com/my/graphiteDigesterBg/diframe/util/DiClassHelper.java

@@ -1,6 +1,8 @@
 package com.my.graphiteDigesterBg.diframe.util;
 import java.io.File;
 import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.net.JarURLConnection;
 import java.net.URL;
 import java.util.ArrayList;
@@ -8,8 +10,27 @@ import java.util.Collections;
 import java.util.Enumeration;
 import java.util.List;
 import java.util.jar.JarEntry;
-
 public class DiClassHelper {
+    // invoke method
+    public static Object invokeMethod(Object obj, String methodName, List<Object> args) throws NoSuchMethodException {
+        try {
+            Class<?>[] parameterTypes = new Class<?>[args.size()];
+            for (int i = 0; i < args.size(); i++) {
+                parameterTypes[i] = args.get(i).getClass();
+            }
+            Method method = obj.getClass().getMethod(methodName, parameterTypes);
+
+            if ( method.getReturnType().equals(Void.TYPE) ) {
+                method.invoke(obj, args.toArray());
+                return null;
+            } else {
+                return method.invoke(obj, args.toArray());
+            }
+        } catch (IllegalAccessException | InvocationTargetException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
     // get all classes in package
     public static List<Class<?>> getAllClassesInPackage(String packageName) {
         List<Class<?>> classes = new ArrayList<>();