JavaReflection-Demo/src/Handler.java at master · SValentyn/JavaReflection-Demo · GitHub

30 lines (24 loc) · 940 Bytes

import java.lang.reflect.InvocationHandler;

import java.lang.reflect.Method;

public class Handler implements InvocationHandler {

private Object hidden;

public Handler(Object hidden) {

this.hidden = hidden;

}

@Override

public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {

long time = System.nanoTime();

System.out.print(hidden + ".".concat(method.getName()).concat("("));

for (int i = 0; i < args.length; i++) {

System.out.print(args[i]);

if (i != args.length - 1) {

System.out.print(", ");

}

System.out.println(")".concat(System.lineSeparator()));

Object object = method.invoke(hidden, args);

System.out.println("Time: ".concat(String.valueOf(System.nanoTime() - time).

concat(" ns").concat(System.lineSeparator())));

return object;

}

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