Construct a GUI and some I/O plumbing to get the output
of "TestOpenMailRelay" into the "results" textfield.
super("Tests for Open Mail Relays");
PipedInputStream is;
PipedOutputStream os;
JPanel p;
Container cp = getContentPane();
cp.add(BorderLayout.NORTH, p = new JPanel());
// The entry label and text field.
p.add(new JLabel("Host:"));
p.add(hostTextField = new JTextField(10));
hostTextField.addActionListener(runner);
JButton b;
p.add(b = new JButton("Try"));
b.addActionListener(runner);
results = new JTextArea(20, 60);
// Add the text area to the main part of the window (CENTER).
// Wrap it in a JScrollPane to make it scroll automatically.
cp.add(BorderLayout.CENTER, new JScrollPane(results));
pack(); // end of GUI portion
// Create a pair of Piped Streams.
is = new PipedInputStream();
os = new PipedOutputStream(is);
iis = new DataInputStream(is);
ps = new PrintStream(os);
// Construct and start a Thread to copy data from "is" to "os".
new Thread() {
public void run() {
try {
String line;
while ((line = iis.readLine()) != null) {
results.append(line);
results.append("\n");
}
} catch(IOException ex) {
results.append("\n");
results.append("*** Input or Output error ***\n");
results.append(ex.toString());
return;
}
}
}.start();
