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1 package client;
8
9 import java.awt.*;
10 import java.awt.event.*;
11 import java.util.Properties  ;
12 import java.rmi.RemoteException ;
13 import javax.naming.Context ;
14 import javax.naming.InitialContext ;
15 import javax.rmi.PortableRemoteObject ;
16 import javax.swing.*;
17
18 import ejb.Greeter;
19 import ejb.GreeterHome;
20
21
26 public class FortuneManager extends JFrame {
27
28 private JTextArea outPutArea;
29 private JButton addFortuneButton;
30 private JTextField addFortuneTF;
31 private JButton showFortuneButton;
32 private JButton showAllFortunesButton;
33 private JButton resetFortunesButton;
34 private Greeter greeter;
35
36 public FortuneManager() {
37 initGUI();
38 initServerObjects();
39 }
40
41 private void initServerObjects() {
42 try {
43 Properties props = new Properties ();
44 props.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
45 props.setProperty(Context.PROVIDER_URL, "localhost:1099");
46 Context ctx = new InitialContext (props);
47 Object ref = ctx.lookup("Greeter");
48 GreeterHome home = (GreeterHome) PortableRemoteObject.narrow(ref, GreeterHome.class);
49 greeter = home.create();
50 } catch (Exception e) {
51 e.printStackTrace();
52 outPutArea.setText(e.toString());
53 }
54 }
55
56 private void initGUI() {
57 this.setTitle("Fortune Manager");
58 Container container = this.getContentPane();
59 container.setLayout(new BorderLayout());
60
61 container.add(inputPanel(), BorderLayout.NORTH);
62 container.add(outputPanel(), BorderLayout.CENTER);
63 container.add(actionPanel(), BorderLayout.SOUTH);
64
65 this.addWindowListener(new WindowCloser());
66 }
67
68 private JPanel inputPanel() {
69 JPanel panel = new JPanel();
70 panel.setLayout(new GridBagLayout());
71 GridBagConstraints gbc = new GridBagConstraints();
72 gbc.anchor = GridBagConstraints.WEST;
73 gbc.insets = new Insets(25, 15, 5, 5);
74
75 gbc.gridy = 0;
76 panel.add(addFortuneTF = new JTextField(30), gbc);
77 panel.add(addFortuneButton = new JButton("Add fortune"), gbc);
78 addFortuneButton.addActionListener(new AddFortuneAction());
79
80 return panel;
81 }
82
83 private JPanel actionPanel() {
84 JPanel panel = new JPanel();
85 panel.setLayout(new GridBagLayout());
86 GridBagConstraints gbc = new GridBagConstraints();
87 gbc.insets = new Insets(5, 5, 5, 5);
88
89 panel.add(showFortuneButton = new JButton("Show fortune"), gbc);
90 panel.add(showAllFortunesButton = new JButton("Show all fortunes"), gbc);
91 panel.add(resetFortunesButton = new JButton("Reset fortunes"), gbc);
92 showFortuneButton.addActionListener(new ShowFortuneAction());
93 showAllFortunesButton.addActionListener(new ShowAllFortunesAction());
94 resetFortunesButton.addActionListener(new ResetFortunesAction());
95 return panel;
96 }
97
98 private JPanel outputPanel() {
99 JPanel panel = new JPanel();
100 JScrollPane scrollPane = new JScrollPane(outPutArea = new JTextArea(20, 52));
101 panel.add(scrollPane);
102 return panel;
103 }
104
105 private class AddFortuneAction implements ActionListener {
106
107 public void actionPerformed(ActionEvent e) {
108 outPutArea.append("\nAdding Fortune...\n");
109 try {
110 greeter.addGreeting(addFortuneTF.getText());
111 } catch (RemoteException e1) {
112 e1.printStackTrace();
113 }
114 }
115 }
116
117 private class ShowFortuneAction implements ActionListener {
118
119 public void actionPerformed(ActionEvent e) {
120 outPutArea.append("\n");
121 try {
122 outPutArea.append(greeter.getGreeting());
123 } catch (RemoteException e1) {
124 e1.printStackTrace();
125 }
126 }
127 }
128
129 private class ShowAllFortunesAction implements ActionListener {
130
131 public void actionPerformed(ActionEvent e) {
132 outPutArea.append("\n");
133 try {
134 outPutArea.append(greeter.getAllGreetings().toString());
135 } catch (RemoteException e1) {
136 e1.printStackTrace();
137 }
138 }
139 }
140
141 private class ResetFortunesAction implements ActionListener {
142
143 public void actionPerformed(ActionEvent e) {
144 try {
145 greeter.removeAllGreetings();
146 outPutArea.setText("");
147 } catch (RemoteException e1) {
148 e1.printStackTrace();
149 }
150 }
151 }
152
153 private class WindowCloser extends WindowAdapter {
154
155 public void windowClosing(WindowEvent e) {
156 setVisible(false);
157 dispose();
158 System.exit(0);
159 }
160 }
161
162 public static void main(String [] args) {
163 FortuneManager fortuneManager = new FortuneManager();
164 fortuneManager.setSize(600, 500);
165 fortuneManager.setLocation(100, 100);
166 fortuneManager.setVisible(true);
167 }
168
169 }
170 |
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