private static String buildNetworkReqMessage() {
StringBuilder networkReq = new StringBuilder();
// MTI 1800
networkReq.append("1800");
// untuk request, DE yang aktif adalah DE[3,7,11,12,13,48 dan 70]
String bitmapReq = ISOUtil.getHexaBitmapFromActiveDE(new int[] {3, 7, 11, 12, 13, 48, 70});
networkReq.append(bitmapReq);
// DE 3 processing code
networkReq.append("000001");
// DE 7 transmission date and time
networkReq.append(new SimpleDateFormat("yyyyMMdd").format(new Date()));
// DE 11 system trace audit number
networkReq.append("000001");
// DE 12 local time transaction
networkReq.append(new SimpleDateFormat("HHmmss").format(new Date()));
// DE 13 local time transaction
networkReq.append(new SimpleDateFormat("MMdd").format(new Date()));
// DE 48 Additional Private Data
final String clientID = "CLNT001";
// length de 48
String lengthBit48 = "";
if (clientID.length() < 10) lengthBit48 = "00" + clientID.length();
if (clientID.length() < 100 && clientID.length() >= 10) lengthBit48 = "0" + clientID.length();
if (clientID.length() == 100) lengthBit48 = String.valueOf(clientID.length());
networkReq.append(lengthBit48);
networkReq.append(clientID);
// DE 70 Network Information Code
networkReq.append("001");
// tambahkan 4 digit length of msg sbg header
String msgHeader = "";
if (networkReq.toString().length() < 10) msgHeader = "000" + networkReq.toString().length();
if (networkReq.toString().length() < 100 && networkReq.toString().length() >= 10)
msgHeader = "00" + networkReq.toString().length();
if (networkReq.toString().length() < 1000 && networkReq.toString().length() >= 100)
msgHeader = "0" + networkReq.toString().length();
if (networkReq.toString().length() >= 1000)
msgHeader = String.valueOf(networkReq.toString().length());
StringBuilder finalNetworkReqMsg = new StringBuilder();
finalNetworkReqMsg.append(msgHeader);
finalNetworkReqMsg.append(networkReq.toString());
return finalNetworkReqMsg.toString();
}
