/*
Wireless Java 2nd edition
Jonathan Knudsen
Publisher: Apress
ISBN: 1590590775
*/
import java.io.*;
import javax.microedition.io.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class CookieMIDlet extends MIDlet
implements CommandListener, Runnable {
private Display mDisplay;
private Form mForm;
private String mSession;
public void startApp() {
mDisplay = Display.getDisplay(this);
if (mForm == null) {
mForm = new Form("CookieMIDlet");
mForm.addCommand(new Command("Exit", Command.EXIT, 0));
mForm.addCommand(new Command("Send", Command.SCREEN, 0));
mForm.setCommandListener(this);
}
mDisplay.setCurrent(mForm);
}
public void pauseApp() {}
public void destroyApp(boolean unconditional) {}
public void commandAction(Command c, Displayable s) {
if (c.getCommandType() == Command.EXIT) notifyDestroyed();
else {
Form waitForm = new Form("Connecting...");
mDisplay.setCurrent(waitForm);
Thread t = new Thread(this);
t.start();
}
}
public void run() {
String url = getAppProperty("CookieMIDlet-URL");
try {
// Query the server and retrieve the response.
HttpConnection hc = (HttpConnection)Connector.open(url);
if (mSession != null)
hc.setRequestProperty("cookie", mSession);
InputStream in = hc.openInputStream();
String cookie = hc.getHeaderField("Set-cookie");
if (cookie != null) {
int semicolon = cookie.indexOf(';');
mSession = cookie.substring(0, semicolon);
}
int length = (int)hc.getLength();
byte[] raw = new byte[length];
in.read(raw);
String s = new String(raw);
Alert a = new Alert("Response", s, null, null);
a.setTimeout(Alert.FOREVER);
mDisplay.setCurrent(a, mForm);
in.close();
hc.close();
}
catch (IOException ioe) {
Alert a = new Alert("Exception", ioe.toString(), null, null);
a.setTimeout(Alert.FOREVER);
mDisplay.setCurrent(a, mForm);
}
}
}