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package org.toorcamp.HelloSTK;
import javacard.framework.APDU;
import javacard.framework.Applet;
import javacard.framework.ISOException;
import sim.toolkit.EnvelopeHandler;
import sim.toolkit.ProactiveHandler;
import sim.toolkit.ToolkitConstants;
import sim.toolkit.ToolkitException;
import sim.toolkit.ToolkitInterface;
import sim.toolkit.ToolkitRegistry;
public class HelloSTK extends Applet implements ToolkitInterface, ToolkitConstants {
// DON'T DECLARE USELESS INSTANCE VARIABLES! They get saved to the EEPROM,
// which has a limited number of write cycles.
private byte helloMenuItem;
static byte[] welcomeMsg = new byte[] { 'W', 'e', 'l', 'c', 'o', 'm', 'e', ' ',
't', 'o', ' ', 'T', 'o', 'o', 'r', 'C',
'a', 'm', 'p', ' ', '2', '0', '1', '2' };
static byte[] menuItemText = new byte[] { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'S', 'T', 'K'};
private HelloSTK() {
// This is the interface to the STK applet registry (which is separate
// from the JavaCard applet registry!)
ToolkitRegistry reg = ToolkitRegistry.getEntry();
// Define the applet Menu Entry
helloMenuItem = reg.initMenuEntry(menuItemText, (short)0, (short)menuItemText.length,
PRO_CMD_SELECT_ITEM, false, (byte)0, (short)0);
}
// This method is called by the card when the applet is installed. You must
// instantiate your applet and register it here.
public static void install(byte[] bArray, short bOffset, byte bLength) {
HelloSTK applet = new HelloSTK();
applet.register();
}
// This processes APDUs sent directly to the applet. For STK applets, this
// interface isn't really used.
public void process(APDU arg0) throws ISOException {
// ignore the applet select command dispached to the process
if (selectingApplet())
return;
}
// This processes STK events.
public void processToolkit(byte event) throws ToolkitException {
EnvelopeHandler envHdlr = EnvelopeHandler.getTheHandler();
if (event == EVENT_MENU_SELECTION) {
byte selectedItemId = envHdlr.getItemIdentifier();
if (selectedItemId == helloMenuItem) {
showHello();
}
}
}
private void showHello() {
ProactiveHandler proHdlr = ProactiveHandler.getTheHandler();
proHdlr.initDisplayText((byte)0, DCS_8_BIT_DATA, welcomeMsg, (short)0,
(short)(welcomeMsg.length));
proHdlr.send();
return;
}
}
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