Examples with APDUConnection javax.microedition.apdu.APDUConnection used on opensource projects

Example 1 with APDUConnection

use of javax.microedition.apdu.APDUConnection in project Samples-for-Java by blackberry.

the class Iso7816Command method execute.

public void execute(ReadOnlyCommandMetadata metadata, Object context) {
    MultiStateButtonField btn = (MultiStateButtonField) context;
    if (btn.getMsbState() == Constants.BTN_SELECT_OFF) {
        Utilities.log("XXXX " + Thread.currentThread().getName() + " ISO 7816-4 command exiting because button is in OFF state");
        return;
    }
    Settings settings = Settings.getInstance();
    NfcTransScreen screen = NfcTransScreen.getInstance();
    Utilities.log("XXXX " + Thread.currentThread().getName() + " selecting applet");
    APDUConnection apduConn = null;
    // this is an example and completely proprietary APDU included solely to demonstrate the basic use of JSR-177
    // Decode:
    // 0x80 : CLASS = proprietary
    // 0x01 : INS   = invented command! Interpretation will require the selected applet to understand this command
    // 0x00 : P1    = null
    // 0x00 : P1    = null
    byte[] command = settings.getAPDU();
    try {
        // Open an APDUConnection to our applet. This results in an ISO 7816-4 SELECT command being sent by the JSR-177 API
        String connection_string = Utilities.makeApduConnectionString(settings.getRegisteredAIDAsString());
        Utilities.log("XXXX " + Thread.currentThread().getName() + " ISO 7816-4 command: opening APDUConnection to " + connection_string);
        apduConn = (APDUConnection) Connector.open(connection_string);
        Utilities.log("XXXX " + Thread.currentThread().getName() + " ISO 7816-4 command: APDUConnection opened");
        screen.setUserMessage("Selected AID OK");
        // Send the APDU and wait for a response - expect an error here unless your applet supports the command that was sent
        Utilities.log("XXXX " + Thread.currentThread().getName() + " ISO 7816-4 command: sending APDU");
        byte[] ret = apduConn.exchangeAPDU(command);
        String resp_string = ByteArrayUtilities.byteArrayToHex(ret);
        Utilities.log("XXXX " + Thread.currentThread().getName() + " ISO 7816-4 command: response=" + resp_string);
        screen.setUserMessage("APDU response=" + resp_string);
        // Close the logical channel connection
        apduConn.close();
    } catch (Exception e) {
        Utilities.log("XXXX " + Thread.currentThread().getName() + " ISO 7816-4 command failed:" + e.getClass().getName() + ":" + e.getMessage());
        screen.setUserMessage("Error. Select failed: check log");
    }
}