|
1
2
5
14 package org.jacorb.trading.client.offers;
15
16 import java.awt.*;
17 import java.awt.event.*;
18 import java.io.*;
19 import java.util.*;
20 import org.omg.CORBA.ORB  ;
21 import org.omg.CosTrading.*;
22 import org.omg.CosTrading.RegisterPackage.*;
23 import org.omg.CosTradingRepos.*;
24 import org.omg.CosTradingRepos.ServiceTypeRepositoryPackage.*;
25 import org.jacorb.trading.client.util.*;
26
27
28 public class ConstraintDialog
29 extends Dialog
30 implements ActionListener, Runnable
31 {
32 private Choice m_types;
33 private TextField m_constraint;
34 private Button m_ok;
35 private Button m_cancel;
36 private Label m_status;
37 private Register m_register;
38 private ServiceTypeRepository m_repos;
39 private Vector m_listeners = new Vector();
40 private String m_actionCommand;
41
42
43 public ConstraintDialog(Frame f, Register reg)
44 {
45 super(f, "Withdraw", false);
46
47 m_register = reg;
48 org.omg.CORBA.Object obj = reg.type_repos();
49 m_repos = ServiceTypeRepositoryHelper.narrow(obj);
50
51 createContents();
52 pack();
53
54 addWindowListener(
55 new WindowAdapter()
56 {
57 public void windowClosing(WindowEvent e)
58 {
59 cancel();
60 }
61 }
62 );
63
64 Point parentLoc = getParent().getLocation();
65 setLocation(parentLoc.x + 30, parentLoc.y + 30);
66 }
67
68
69 protected void createContents()
70 {
71 Panel panel = new Panel();
72 panel.setLayout(new GridBagLayout());
73
74 Panel typesPanel = new Panel();
75 typesPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
76 typesPanel.add(new Label("Service type", Label.LEFT));
77
78 m_types = new Choice();
79 loadTypes(m_types);
80 typesPanel.add(m_types);
81
82 Constrain.constrain(panel, typesPanel, 0, 0, 2, 1,
83 GridBagConstraints.HORIZONTAL, GridBagConstraints.NORTHWEST,
84 1.0, 0.0, 5, 10, 0, 10);
85
86 Constrain.constrain(panel, new Label("Constraint", Label.LEFT), 0, 1, 2, 1,
87 GridBagConstraints.NONE, GridBagConstraints.NORTHWEST, 0.0, 0.0,
88 5, 10, 0, 10);
89
90 m_constraint = new TextField(50);
91 m_constraint.setEditable(true);
92 Constrain.constrain(panel, m_constraint, 0, 2, 2, 1,
93 GridBagConstraints.HORIZONTAL, GridBagConstraints.NORTHWEST, 1.0, 0.0,
94 0, 10, 0, 10);
95
96 m_ok = new Button("OK");
97 m_ok.setActionCommand("ok");
98 m_ok.addActionListener(this);
99 Constrain.constrain(panel, m_ok, 0, 3, 1, 1,
100 GridBagConstraints.NONE, GridBagConstraints.NORTHWEST, 0.0, 0.0,
101 10, 10, 0, 0, 30, 3);
102
103 m_cancel = new Button("Cancel");
104 m_cancel.setActionCommand("cancel");
105 m_cancel.addActionListener(this);
106 Constrain.constrain(panel, m_cancel, 1, 3, 1, 1,
107 GridBagConstraints.NONE, GridBagConstraints.NORTHEAST, 0.0, 0.0,
108 10, 0, 0, 10, 10, 3);
109
110 m_status = new Label("", Label.LEFT);
111 Constrain.constrain(panel, m_status, 0, 4, 2, 1,
112 GridBagConstraints.HORIZONTAL, GridBagConstraints.NORTHWEST, 1.0, 0.0,
113 5, 10, 5, 10);
114
115 add(panel);
116 }
117
118
119 public void addActionListener(ActionListener l)
120 {
121 m_listeners.addElement(l);
122 }
123
124
125 public void removeActionListener(ActionListener l)
126 {
127 m_listeners.removeElement(l);
128 }
129
130
131 public void setActionCommand(String command)
132 {
133 m_actionCommand = command;
134 }
135
136
137 public void actionPerformed(ActionEvent e)
138 {
139 if (e.getActionCommand().equals("ok"))
140 ok();
141 else if (e.getActionCommand().equals("cancel"))
142 cancel();
143 }
144
145
146 protected void ok()
147 {
148 new Thread (this).start();
149 }
150
151
152 protected void cancel()
153 {
154 setVisible(false);
155 }
156
157
158 public void run()
159 {
160 try {
161 showStatus("Withdrawing offers...");
162 m_ok.setEnabled(false);
163 m_cancel.setEnabled(false);
164
165 String type = m_types.getSelectedItem();
166 String constraint = m_constraint.getText();
167
168 m_register.withdraw_using_constraint(type, constraint);
169
170 setVisible(false);
171 notifyListeners();
172 clearStatus();
173 }
174 catch (IllegalServiceType e) {
175 showStatus("Illegal service type '" + e.type + "'");
176 }
177 catch (UnknownServiceType e) {
178 showStatus("Unknown service type '" + e.type + "'");
179 }
180 catch (IllegalConstraint e) {
181 showStatus("Illegal constraint");
182 }
183 catch (NoMatchingOffers e) {
184 showStatus("No matching offers found");
185 }
186 finally {
187 m_ok.setEnabled(true);
189 m_cancel.setEnabled(true);
190 }
191 }
192
193
194 protected void notifyListeners()
195 {
196 ActionEvent evt =
197 new ActionEvent(this, ActionEvent.ACTION_PERFORMED, m_actionCommand);
198
199 Enumeration e = m_listeners.elements();
200 while (e.hasMoreElements()) {
201 ActionListener l = (ActionListener)e.nextElement();
202 l.actionPerformed(evt);
203 }
204 }
205
206
207 protected void showStatus(String message)
208 {
209 m_status.setText(message);
210 }
211
212
213 protected void clearStatus()
214 {
215 m_status.setText("");
216 }
217
218
219 protected void loadTypes(Choice choice)
220 {
221 choice.removeAll();
222 String [] types;
223 SpecifiedServiceTypes whichTypes = new SpecifiedServiceTypes();
224 whichTypes.__default();
227
228 types = m_repos.list_types(whichTypes);
229 QuickSort.sort(types);
230 for (int i = 0; i < types.length; i++)
231 choice.add(types[i]);
232 }
233 }
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250 |
Popular Tags |
Java API By Example, From Geeks To Geeks.