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package TIJ4_code.gui;

//: gui/BeanDumper.java

// Introspecting a Bean.

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.beans.*;

import java.lang.reflect.*;

import static TIJ4_code.net.mindview.util.SwingConsole.*;

public class BeanDumper extends JFrame {

private JTextField query = new JTextField(20);

private JTextArea results = new JTextArea();

public void print(String s) { results.append(s + "\n"); }

public void dump(Class<?> bean) {

results.setText("");

BeanInfo bi = null;

try {

bi = Introspector.getBeanInfo(bean, Object.class);

} catch(IntrospectionException e) {

print("Couldn't introspect " + bean.getName());

return;

}

for(PropertyDescriptor d: bi.getPropertyDescriptors()){

Class<?> p = d.getPropertyType();

if(p == null) continue;

print("Property type:\n " + p.getName() +

"Property name:\n " + d.getName());

Method readMethod = d.getReadMethod();

if(readMethod != null)

print("Read method:\n " + readMethod);

Method writeMethod = d.getWriteMethod();

if(writeMethod != null)

print("Write method:\n " + writeMethod);

print("====================");

}

print("Public methods:");

for(MethodDescriptor m : bi.getMethodDescriptors())

print(m.getMethod().toString());

print("======================");

print("Event support:");

for(EventSetDescriptor e: bi.getEventSetDescriptors()){

print("Listener type:\n " +

e.getListenerType().getName());

for(Method lm : e.getListenerMethods())

print("Listener method:\n " + lm.getName());

for(MethodDescriptor lmd :

e.getListenerMethodDescriptors() )

print("Method descriptor:\n " + lmd.getMethod());

Method addListener= e.getAddListenerMethod();

print("Add Listener Method:\n " + addListener);

Method removeListener = e.getRemoveListenerMethod();

print("Remove Listener Method:\n "+ removeListener);

print("====================");

}

}

class Dumper implements ActionListener {

public void actionPerformed(ActionEvent e) {

String name = query.getText();

Class<?> c = null;

try {

c = Class.forName(name);

} catch(ClassNotFoundException ex) {

results.setText("Couldn't find " + name);

return;

}

dump(c);

}

}

public BeanDumper() {

JPanel p = new JPanel();

p.setLayout(new FlowLayout());

p.add(new JLabel("Qualified bean name:"));

p.add(query);

add(BorderLayout.NORTH, p);

add(new JScrollPane(results));

Dumper dmpr = new Dumper();

query.addActionListener(dmpr);

query.setText("frogbean.Frog");

// Force evaluation

dmpr.actionPerformed(new ActionEvent(dmpr, 0, ""));

}

public static void main(String[] args) {

run(new BeanDumper(), 600, 500);

}

} ///:~