import java.lang.reflect.*;
import java.util.ArrayList;

public class XRayClass {

    public <T> Method[]
	getDeclaredMethodsFromClass(Class<T> c) {

	Method[] mList;

	mList = c.getDeclaredMethods();
	return mList;
    }

    public <T> Method[]
	getMethodsFromClass(Class<T> c) {

	Method[] mList;

	mList = c.getMethods();
	return mList;
    }

    public <T> Constructor[]
	getAllConstructorsFromClass(Class<T> c) {

	Constructor[] cList;

	cList = c.getDeclaredConstructors();
	return cList;
    }

    public <T> Field[]
	getFieldsFromClass(Class<T> c) {
	Field[] fList;

	fList = c.getDeclaredFields();
	return fList;
    }

    public <T> ArrayList<Class<? super T> >
	getClassesFromClass(Class<T> c) {
	ArrayList<Class<? super T> > cList = new ArrayList<Class<? super T> >();
	Class<? super T>  cTemp;

	cTemp = c;
	while ((cTemp =
		cTemp.getSuperclass()) != null) {
	    cList.add(cTemp);
	}

	return cList;
    }

    public <T> Class<?>[]
	getInterfacesFromClass(Class<T> c) {

	Class<?>[] cList;

	cList = c.getInterfaces();
	return cList;
    }

    public static void main(String[] args) {

	XRayClass xray = new XRayClass();

	if (args.length != 2) {
	    System.out.println("Usage: " +
			       "java XRayClass <className> " +
			       "[declaredMethods | methods | " +
			       "constructors | fields | inheritance |" +
			       "interfaces] ");
	    System.exit(1);
	}

	try {
	    Class<?> c = Class.forName(args[0]);

	    if (args[1].equals("declaredMethods")) {
		for (Method e : xray.getDeclaredMethodsFromClass(c)) 
		    System.out.println(e);
	    }
	    else if (args[1].equals("methods")) {
		for (Method e : xray.getMethodsFromClass(c)) 
		    System.out.println(e);
	    }
	    else if (args[1].equals("Constructors")) {
		for (Constructor e : xray.getAllConstructorsFromClass(c)) 
		    System.out.println(e);
	    }
	    else if (args[1].equals("fields")) {
		for (Field e : xray.getFieldsFromClass(c)) 
		    System.out.println(e);
	    }
	    else if (args[1].equals("inheritance")) {
		for (Class<?> e : xray.getClassesFromClass(c)) 
		    System.out.println(e);
	    }
	    else if (args[1].equals("interfaces")) {
		for (Class<?> e : xray.getInterfacesFromClass(c)) 
		    System.out.println(e);

	    }
	    else {
		System.out.println("ERROR:" +
				   "The selected feature is not implemented");
	    }
	}
	catch (java.lang.ClassNotFoundException e) {
	    e.printStackTrace();
	}
    }
}