Deployment Options for Non-J2SE Clients - Java Deployment with JNLP and WebStart - page 123

L ISTING 5.5 Continued

* @param length the length in bytes of the parameter data in byteArray
*/
public static void install(byte[] byteArray, short offset, byte length) {
new CardTest();

}

/**
* Implementation of the standard method for processing an incoming APDU.
* @param apdu the incoming APDU
* @exception ISOException with ISO 7816-4 response bytes
*/
public void process(APDU apdu) {
byte buffer[] = apdu.getBuffer();

if (buffer[ISO7816.OFFSET_CLA] == THIS_CLA) {
switch (buffer[ISO7816.OFFSET_INS]) {

case INITIALIZE_TRANSACTION:
writeBack(apdu, INIT_SEQUENCE);
break;
case COMPLETE_TRANSACTION:
writeBack(apdu, COMPLETE_SEQUENCE);
break;
case INITIALIZE_UPDATE:
writeBack(apdu, INIT_UPDATE_SEQUENCE);
break;
case COMPLETE_UPDATE:
writeBack(apdu, COMPLETE_UPDATE_SEQUENCE);
break;
default:
ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);

}

}

}

/**
* An example method that writes back a given byte array through the apdu.
*/
protected void writeBack(APDU apdu, byte[] bytes) {
byte buffer[] = apdu.getBuffer();

5

// set apdu for data output
apdu.setOutgoing();