@initService

ApplicationManager.java

package lesson7_10.reflection;


import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class ApplicationManager {

    public void runManager(Class sclass) throws IllegalAccessException, InstantiationException, InvocationTargetException {

        Annotation[] annotations = sclass.getAnnotations();

        for (Annotation annotation : annotations) {
            if (annotation.annotationType().getSimpleName().equalsIgnoreCase("service")) {

                System.out.println("Class " + sclass.getSimpleName() + " has @Service");

                Object o = sclass.newInstance();

                Method[] methods = o.getClass().getDeclaredMethods();
                for (Method method : methods) {
                    Annotation[] anns = method.getDeclaredAnnotations();
                    for (Annotation ann : anns) {
                        if (checkMethodAnnotation(ann)) {
                            method.invoke(o, null);
                        }
                    }
                }
            }
        }
    }

    public boolean checkMethodAnnotation(Annotation annotation) {
        if (annotation.toString().equalsIgnoreCase("initService")) {
            return true;
        }
        return false;
    }
}