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API for processing payments through Global Payments
package com.global.api.gateways;
import com.global.api.builders.AuthorizationBuilder;
import com.global.api.builders.ManagementBuilder;
import com.global.api.builders.TransactionBuilder;
import com.global.api.entities.EncryptionData;
import com.global.api.entities.enums.AccountType;
import com.global.api.network.entities.gnap.*;
import com.global.api.entities.Transaction;
import com.global.api.entities.enums.*;
import com.global.api.entities.exceptions.ApiException;
import com.global.api.entities.exceptions.GatewayException;
import com.global.api.entities.exceptions.GatewayTimeoutException;
import com.global.api.network.enums.gnap.*;
import com.global.api.network.NetworkMessageHeader;
import com.global.api.network.enums.gnap.CardType;
import com.global.api.network.enums.gnap.GnapFIDS;
import com.global.api.network.enums.gnap.LogMessages;
import com.global.api.network.enums.NetworkProcessingFlag;
import com.global.api.network.enums.gnap.TransactionCode;
import com.global.api.paymentMethods.*;
import com.global.api.serviceConfigs.AcceptorConfig;
import com.global.api.serviceConfigs.GatewayConnectorConfig;
import com.global.api.terminals.DeviceMessage;
import com.global.api.terminals.abstractions.IDeviceMessage;
import com.global.api.utils.*;
import org.joda.time.DateTime;
import java.math.BigDecimal;
public class GnapConnector extends GatewayConnectorConfig {
boolean isCreditCard;
boolean isDebitCard;
boolean isEmvDataPresent;
final String fs = String.valueOf((char) 0x1C);
final String rs = String.valueOf((char) 0x1E);
private TransactionCode transCode=null;
@Override
public void setTerminalId(String terminalId) {
this.terminalId = terminalId;
}
public NetworkProcessingFlag getProcessingFlag() {
return processingFlag;
}
public void setProcessingFlag(NetworkProcessingFlag processingFlag) {
this.processingFlag = processingFlag;
}
@Override
public void setAcceptorConfig(AcceptorConfig acceptorConfig) {
this.acceptorConfig = acceptorConfig;
}
public Transaction processAuthorization(AuthorizationBuilder builder) throws ApiException {
MessageWriter mr = new MessageWriter();
GnapRequestData reqData = builder.getGnapRequestData();
GnapMessageHeader header = reqData.getGnapMessageHeader();
GnapProdSubFids prodSubFids = reqData.getGnapProdSubFids();
IPaymentMethod paymentMethod = builder.getPaymentMethod();
CardBrand cardBrand=null;
OptionalData optionalData = builder.getGnapRequestData().getOptionalData();
if(header!=null) {
header.setCurrentDate(DateTime.now().toString("yyMMdd"));
header.setCurrentTime(DateTime.now().toString("hhmmss"));
}
if (paymentMethod != null) {
cardBrand=GnapUtils.getCardBrand(paymentMethod);
isCreditCard = paymentMethod.getPaymentMethodType().equals(PaymentMethodType.Credit) ||paymentMethod instanceof Credit;
isDebitCard = paymentMethod.getPaymentMethodType().equals(PaymentMethodType.Debit) ||paymentMethod instanceof Debit;
}
TransactionType transactionType = builder.getTransactionType();
EmvData tagData = EmvUtils.parseTagData(builder.getTagData(), isEnableLogging());
isEmvDataPresent = tagData != null;
setTransactionCodeInHeader(header,builder);
if(isCreditCard){
reqData.setCardType(CardType.Credit);
}else if(isDebitCard){
reqData.setCardType(CardType.Debit);
}
GnapUtils.log("***************Request Header*****************", "*****");
MessageWriter headerWriter = buildRequestHeader(header, acceptorConfig);
GnapUtils.log("Final Request Header", new String(headerWriter.toArray()));
MapGnapFids mapFids = new MapGnapFids(mr);
mr.addRange(headerWriter.toArray());
GnapUtils.log("***************Request Fids*****************", "*****");
//FID_B("Transaction Amount")
mapFids.addFid(GnapFIDS.FID_B, getTransactionAmount(builder));
//FID_D("Account Type")
if(cardBrand!=null) {
if ((isDebitCard || cardBrand.equals(CardBrand.UnionPay)) && reqData.getAccountType() != null) {
mapFids.addFid(GnapFIDS.FID_D, accountTypeMapping(reqData.getAccountType()));
}
}
//FID_F("Approval Code")
if(isEmvDataPresent && tagData.getApprovalCode()!=null){
mapFids.addFid(GnapFIDS.FID_F, StringUtils.padRight(tagData.getApprovalCode(), 8, ' '));
}else if (reqData.getApprovalCode() != null) {
mapFids.addFid(GnapFIDS.FID_F, StringUtils.padRight(reqData.getApprovalCode(), 8, ' '));
}
//FID_P("Draft Capture Flag")
if(cardBrand!=null) {
mapFids.addFid(GnapFIDS.FID_P, getDraftCapture(cardBrand, transactionType));
}
//FID_Q("Echo Data")
mapFids.addFid(GnapFIDS.FID_Q, reqData.getEchoData());
//FID_R("Card Type")
mapFids.addFid(GnapFIDS.FID_R, reqData.getCardType());
//FID_S("Invoice Number")
mapFids.addFid(GnapFIDS.FID_S, reqData.getInvoiceNumber());
//FID_U("Language Code")
if(paymentMethod instanceof Credit){
mapFids.addFid(GnapFIDS.FID_U, reqData.getLanguageCode());
}else if(paymentMethod instanceof Debit && tagData !=null){
if(tagData.getLanguageCode()!=null) {
mapFids.addFid(GnapFIDS.FID_U, tagData.getLanguageCode());
}else{
mapFids.addFid(GnapFIDS.FID_U, reqData.getLanguageCode());
}
}
//FID_X("ISO Response Code")
if(isEmvDataPresent && header.getMessageSubType().equals(MessageSubType.StoreAndForwardTransactions)){
mapFids.addFid(GnapFIDS.FID_U, tagData.getIsoResponseCode());
}
//FID_a("Optional Data")
if(cardBrand!=null && optionalData != null) {
mapFids.addFid(GnapFIDS.FID_a, optionalData.getOptionalData(transactionType, header.getTransactionCode(), cardBrand, reqData.getCardType()));
}
//FID_b("PIN Block")
if(paymentMethod instanceof IPinProtected) {
String pinBlock = ((IPinProtected)paymentMethod).getPinBlock();
if(!StringUtils.isNullOrEmpty(pinBlock)) {
mapFids.addFid(GnapFIDS.FID_b, pinBlock);
}
}
//FID_d("Retailer ID")
mapFids.addFid(GnapFIDS.FID_d, reqData.getRetailerID());
//FID_e("POS Condition Code")
mapFids.addFid(GnapFIDS.FID_e, reqData.getPosConditionCode());
//FID_h("Sequence Number")
if (reqData.getSequenceNumber() != null) {
mapFids.addFid(GnapFIDS.FID_h, reqData.getSequenceNumber().getValue());
}
//FID_p("Paypass Device Type Indicator")
if(isEmvDataPresent) {
mapFids.addFid(GnapFIDS.FID_p, tagData.getDeviceTypeIndicator());
}
//FID_q("Track 2 Data")
if(paymentMethod !=null) {
if (paymentMethod instanceof IEncryptable && acceptorConfig.isSupportsE2EEEncryption()) {
EncryptionData encryptionData = ((IEncryptable) paymentMethod).getEncryptionData();
if (encryptionData != null) {
mapFids.addFid(GnapFIDS.FID_q, encryptionData.getTrackNumber());
}
} else if (paymentMethod instanceof ITrackData) {
ITrackData card = (ITrackData) paymentMethod;
mapFids.addFid(GnapFIDS.FID_q, card.getValue());
} else if (paymentMethod instanceof ICardData) {
ICardData card = (ICardData) paymentMethod;
mapFids.addFid(GnapFIDS.FID_q, getManualTrackData(card.getNumber(), getShortExpiry(card)));
}
}
//FID_t("Global Payments Pinpad serial Number")
mapFids.addFid(GnapFIDS.FID_t, acceptorConfig.getPinPadSerialNumber());
//FID_z("Union Pay Indicator")
if(cardBrand!=null) {
if (cardBrand.equals(CardBrand.UnionPay))
mapFids.addFid(GnapFIDS.FID_z, UnionPayIndicator.UnionPayTransaction);
else
mapFids.addFid(GnapFIDS.FID_z, UnionPayIndicator.NonUnionPayTransaction);
}
//FID_4("Message Reason Codes for Merchant Initiated Transactions")
mapFids.addFid(GnapFIDS.FID_4, reqData.getMerchantReasonCodes());
//FID_6("Product Sub-FIDs")
if (prodSubFids != null) {
mapFids.addFid(GnapFIDS.FID_6, "");
//subFID_B("CVV2/CVC2 Value")
if (prodSubFids.getCvv2Value() != null) {
mapFids.addSubFid(GnapSubFids.subFID_B, StringUtils.padRight(prodSubFids.getCvv2Value(), 4, ' '));
}
//subFID_E("POS Entry Mode")
if(paymentMethod !=null) {
if(paymentMethod instanceof ITrackData) {
ITrackData card = (ITrackData) paymentMethod;
String entryMode = card.getEntryMethod().getValue() + acceptorConfig.getPinCapability().getValue();
mapFids.addSubFid(GnapSubFids.subFID_E, entryMode);
}else if(paymentMethod instanceof ICardData) {
String entryMode = mapEntryMethod(EntryMethod.Manual) + acceptorConfig.getPinCapability().getValue();
mapFids.addSubFid(GnapSubFids.subFID_E, entryMode);
}
}
//subFID_H("Card Verification Digits Presence indicator and Result")
if (isCreditCard && (transactionType.equals(TransactionType.Sale) || transactionType.equals(TransactionType.Auth))
&& prodSubFids.getCardPresenceIndicator() != null)
mapFids.addSubFid(GnapSubFids.subFID_H, StringUtils.padRight(prodSubFids.getCardPresenceIndicator().getValue(), 2, ' '));
//subFID_I("Transaction Currency Code (TCC)")
if (isEmvDataPresent && tagData.getTransactionCurrencyCode()!=null)
mapFids.addSubFid(GnapSubFids.subFID_I, tagData.getTransactionCurrencyCode().substring(1));
if (isEmvDataPresent && !header.getTransactionCode().equals(TransactionCode.TelephoneAuthPurchase)){
//subFID_O("EMV Request Data")
mapFids.addSubFid(GnapSubFids.subFID_O, getEmvReqData(tagData));
//subFID_P("EMV Additional Request Data")
mapFids.addSubFid(GnapSubFids.subFID_P, getEmvAdditionalReqData(tagData));
}
//subFID_S("UnionPay Online PIN DUKPT KSN")
mapFids.addSubFid(GnapSubFids.subFID_S, prodSubFids.getUnionPayOnlinePINDUKPTKSN());
//subFID_T("DUKPT KSN")
if(paymentMethod instanceof IEncryptable && acceptorConfig.isSupportsE2EEEncryption()){
EncryptionData encryptionData= ((IEncryptable)paymentMethod).getEncryptionData();
if(encryptionData != null) {
mapFids.addSubFid(GnapSubFids.subFID_T,encryptionData.getKsn());
}
}
//subFID_X("Point of Service Data")
if (prodSubFids.getPointOfServiceData() != null)
mapFids.add(GnapSubFids.subFID_X, prodSubFids.getPointOfServiceData().getValue());
//subFID_q("Paywave Form Factor Indicator")
if (isEmvDataPresent)
mapFids.addSubFid(GnapSubFids.subFID_q, tagData.getFormFactorIndicator());
}
mr.add(ControlCodes.ETX);
IDeviceMessage buildMessage = new DeviceMessage(mr.toArray());
GnapUtils.log("Final Request", buildMessage.toString());
return sendRequest(mr, builder);
}
public Transaction manageTransaction(ManagementBuilder builder) throws ApiException {
MessageWriter mr = new MessageWriter();
GnapRequestData reqData = builder.getGnapRequestData();
GnapMessageHeader header = reqData.getGnapMessageHeader();
GnapProdSubFids prodSubFids = reqData.getGnapProdSubFids();
IPaymentMethod paymentMethod = builder.getPaymentMethod();
CardBrand cardBrand=GnapUtils.getCardBrand(paymentMethod);
TransactionReference reference = null;
OptionalData optionalData = builder.getGnapRequestData().getOptionalData();
boolean isInstanceOfReference = false;
if(header!=null) {
header.setCurrentDate(DateTime.now().toString("yyMMdd"));
header.setCurrentTime(DateTime.now().toString("hhmmss"));
}
if (paymentMethod instanceof TransactionReference) {
reference = (TransactionReference) paymentMethod;
if(reference!=null) {
paymentMethod = reference.getOriginalPaymentMethod();
}
isInstanceOfReference=true;
cardBrand=GnapUtils.getCardBrand(paymentMethod);
isCreditCard = paymentMethod.getPaymentMethodType().equals(PaymentMethodType.Credit) ||paymentMethod instanceof Credit;
isDebitCard = paymentMethod.getPaymentMethodType().equals(PaymentMethodType.Debit) ||paymentMethod instanceof Debit;
}
setTransactionCodeInHeader(header,builder);
TransactionType transactionType = builder.getTransactionType();
EmvData tagData = EmvUtils.parseTagData(builder.getTagData(), isEnableLogging());
isEmvDataPresent = tagData != null;
if(isCreditCard){
reqData.setCardType(CardType.Credit);
}else if(isDebitCard){
reqData.setCardType(CardType.Debit);
}
GnapUtils.log("***************Request Header*****************", "*****");
MessageWriter headerWriter = buildRequestHeader(header, acceptorConfig);
GnapUtils.log("Final Request Header", new String(headerWriter.toArray()));
MapGnapFids mapFids = new MapGnapFids(mr);
mr.addRange(headerWriter.toArray());
GnapUtils.log("***************Request Fids*****************", "*****");
if(!transactionType.equals(TransactionType.BatchClose)) {
//FID_B("Transaction Amount")
mapFids.addFid(GnapFIDS.FID_B, getTransactionAmount(builder));
//FID_C("Original Transaction Amount")
if(reference != null) {
if (reference.getOriginalApprovedAmount() != reference.getOriginalAmount())
mapFids.addFid(GnapFIDS.FID_C, StringUtils.toNumeric(reference.getOriginalApprovedAmount()));
else if (transactionType.equals(TransactionType.PreAuthCompletion))
mapFids.addFid(GnapFIDS.FID_C, StringUtils.toNumeric(reference.getOriginalAmount()));
}
//FID_D("Account Type")
if((isDebitCard || cardBrand.equals(CardBrand.UnionPay)) && reqData.getAccountType()!=null) {
mapFids.addFid(GnapFIDS.FID_D, accountTypeMapping(reqData.getAccountType()));
}
//FID_F("Approval Code")
if(reference != null) {
if (isInstanceOfReference && reference.getOriginalProcessingCode() != null && isApprovalCodeValid(cardBrand, transactionType)) {
mapFids.addFid(GnapFIDS.FID_F, StringUtils.padRight(reference.getOriginalProcessingCode(), 8, ' '));
}
}
//FID_P("Draft Capture Flag")
mapFids.addFid(GnapFIDS.FID_P,getDraftCapture(cardBrand,transactionType));
//FID_Q("Echo Data")
mapFids.addFid(GnapFIDS.FID_Q, reqData.getEchoData());
//FID_R("Card Type")
mapFids.addFid(GnapFIDS.FID_R, reqData.getCardType());
//FID_S("Invoice Number")
mapFids.addFid(GnapFIDS.FID_S, reqData.getInvoiceNumber());
//FID_T("Original Invoice Number")
if(reference != null) {
if (isInstanceOfReference && reference.getOriginalInvoiceNumber() != null)
mapFids.addFid(GnapFIDS.FID_T, reference.getOriginalInvoiceNumber());
}
//FID_U("Language Code")
if(paymentMethod instanceof Credit){
mapFids.addFid(GnapFIDS.FID_U, reqData.getLanguageCode());
}else if(paymentMethod instanceof Debit && tagData !=null){
if(tagData.getLanguageCode()!=null) {
mapFids.addFid(GnapFIDS.FID_U, tagData.getLanguageCode());
}else{
mapFids.addFid(GnapFIDS.FID_U, reqData.getLanguageCode());
}
}
//FID_X("ISO Response Code")
if (isEmvDataPresent && (transactionType.equals(TransactionType.PreAuthCompletion)||
header.getMessageSubType().equals(MessageSubType.StoreAndForwardTransactions))){
mapFids.addFid(GnapFIDS.FID_X, tagData.getIsoResponseCode());
}
//FID_a("Optional Data")
if (optionalData != null)
mapFids.addFid(GnapFIDS.FID_a, optionalData.getOptionalData(transactionType,header.getTransactionCode(),cardBrand, reqData.getCardType()));
//FID_b("PIN Block")
if(paymentMethod instanceof IPinProtected) {
String pinBlock = ((IPinProtected)paymentMethod).getPinBlock();
if(!StringUtils.isNullOrEmpty(pinBlock)) {
mapFids.addFid(GnapFIDS.FID_b, pinBlock);
}
}
//FID_d("Retailer ID")
mapFids.addFid(GnapFIDS.FID_d, reqData.getRetailerID());
//FID_e("POS Condition Code")
mapFids.addFid(GnapFIDS.FID_e, reqData.getPosConditionCode());
//FID_h("Sequence Number")
if (reqData.getSequenceNumber() != null) {
mapFids.addFid(GnapFIDS.FID_h, reqData.getSequenceNumber().getValue());
}
//FID_j("Mastercard Banknet Reference Number, Visa Transaction Identifier or Discover Network Reference ID")
if(reference != null) {
if (isInstanceOfReference)
mapFids.addFid(GnapFIDS.FID_j, reference.getTransactionIdentifier());
}
//FID_m("Day Totals")
if (reqData.getDayTotals() != null)
mapFids.addFid(GnapFIDS.FID_m, reqData.getDayTotals().getValue(reqData.getSequenceNumber()));
//FID_p("Paypass Device Type Indicator")
if(isEmvDataPresent) {
mapFids.addFid(GnapFIDS.FID_p, tagData.getDeviceTypeIndicator());
}
//FID_q("Track 2 Data")
if (paymentMethod != null) {
if(paymentMethod instanceof IEncryptable && acceptorConfig.isSupportsE2EEEncryption()){
EncryptionData encryptionData = ((IEncryptable) paymentMethod).getEncryptionData();
if (encryptionData != null) {
mapFids.addFid(GnapFIDS.FID_q, encryptionData.getTrackNumber());
}
}else {
if (paymentMethod instanceof ITrackData) {
ITrackData card = (ITrackData) paymentMethod;
if (transactionType.equals(TransactionType.PreAuthCompletion) || transactionType.equals(TransactionType.Void)) {
if(builder.getAmount().compareTo(BigDecimal.valueOf(0))==0 && cardBrand.equals(CardBrand.UnionPay)){
mapFids.addFid(GnapFIDS.FID_q, card.getValue());
}else {
mapFids.addFid(GnapFIDS.FID_q, getManualTrackData(card.getPan(), card.getExpiry()));
}
} else {
mapFids.addFid(GnapFIDS.FID_q, card.getValue());
}
} else if (paymentMethod instanceof ICardData) {
ICardData card = (ICardData) paymentMethod;
mapFids.addFid(GnapFIDS.FID_q, getManualTrackData(card.getNumber(), getShortExpiry(card)));
}
}
}
//FID_t("Global Payments Pinpad serial Number")
mapFids.addFid(GnapFIDS.FID_t, acceptorConfig.getPinPadSerialNumber());
//FID_z("Union Pay Indicator")
if (cardBrand.equals(CardBrand.UnionPay))
mapFids.addFid(GnapFIDS.FID_z,UnionPayIndicator.UnionPayTransaction);
else
mapFids.addFid(GnapFIDS.FID_z,UnionPayIndicator.NonUnionPayTransaction);
//FID_4("Message Reason Codes for Merchant Initiated Transactions")
mapFids.addFid(GnapFIDS.FID_4, reqData.getMerchantReasonCodes());
//FID_5("Transaction Info")
if(reference != null) {
if (isInstanceOfReference)
mapFids.addFid(GnapFIDS.FID_5, reference.getOriginalTransactionInfo());
}
//FID_6("Product Sub-FIDs")
if (prodSubFids != null) {
mapFids.addFid(GnapFIDS.FID_6, "");
//subFID_B("CVV2/CVC2 Value")
if (prodSubFids.getCvv2Value() != null) {
mapFids.addSubFid(GnapSubFids.subFID_B, StringUtils.padRight(prodSubFids.getCvv2Value(), 4, ' '));
}
//subFID_E("POS Entry Mode")
if (paymentMethod != null) {
if (paymentMethod instanceof ITrackData) {
ITrackData card = (ITrackData) paymentMethod;
String entryMode = card.getEntryMethod().getValue() + acceptorConfig.getPinCapability().getValue();
mapFids.addSubFid(GnapSubFids.subFID_E, entryMode);
} else {
String entryMode = mapEntryMethod(EntryMethod.Manual) + acceptorConfig.getPinCapability().getValue();
mapFids.addSubFid(GnapSubFids.subFID_E, entryMode);
}
}
//subFID_H("Card Verification Digits Presence indicator and Result")
if (isCreditCard && (transactionType.equals(TransactionType.Sale) || transactionType.equals(TransactionType.Auth))
&& prodSubFids.getCardPresenceIndicator() != null)
mapFids.addSubFid(GnapSubFids.subFID_H, StringUtils.padRight(prodSubFids.getCardPresenceIndicator().getValue(), 2, ' '));
//subFID_I("Transaction Currency Code (TCC)")
if (isEmvDataPresent)
mapFids.addSubFid(GnapSubFids.subFID_I, tagData.getTransactionCurrencyCode().substring(1));
if (isEmvDataPresent) {
//subFID_O("EMV Request Data")
mapFids.addSubFid(GnapSubFids.subFID_O, getEmvReqData(tagData));
//subFID_P("EMV Additional Request Data")
mapFids.addSubFid(GnapSubFids.subFID_P, getEmvAdditionalReqData(tagData));
}
//subFID_S("UnionPay Online PIN DUKPT KSN")
mapFids.addSubFid(GnapSubFids.subFID_S, prodSubFids.getUnionPayOnlinePINDUKPTKSN());
//subFID_T("DUKPT KSN")
if(paymentMethod instanceof IPinProtected && acceptorConfig.isSupportsE2EEEncryption()){
EncryptionData encryptionData= ((IEncryptable)paymentMethod).getEncryptionData();
if(encryptionData != null) {
mapFids.addSubFid(GnapSubFids.subFID_T,encryptionData.getKsn());
}
}
//subFID_X("Point of Service Data")
if(prodSubFids.getPointOfServiceData() != null)
mapFids.add(GnapSubFids.subFID_X, prodSubFids.getPointOfServiceData().getValue());
//subFID_q("Paywave Form Factor Indicator")
if (isEmvDataPresent)
mapFids.addSubFid(GnapSubFids.subFID_q, tagData.getFormFactorIndicator());
}
}else{
//FID_U("Language Code")
mapFids.addFid(GnapFIDS.FID_U, reqData.getLanguageCode());
//FID_h("Sequence Number")
if (reqData.getSequenceNumber() != null) {
mapFids.addFid(GnapFIDS.FID_h, reqData.getSequenceNumber().getValue());
}
//FID_m("Day Totals")
if (reqData.getDayTotals() != null)
mapFids.addFid(GnapFIDS.FID_m, reqData.getDayTotals().getValue(reqData.getSequenceNumber()));
//FID_t("Global Payments Pinpad serial Number")
mapFids.addFid(GnapFIDS.FID_t, acceptorConfig.getPinPadSerialNumber());
}
mr.add(ControlCodes.ETX);
IDeviceMessage buildMessage = new DeviceMessage(mr.toArray());
GnapUtils.log("Final Request", buildMessage.toString());
return sendRequest(mr, builder);
}
private > Transaction sendRequest(MessageWriter messageData, T builder) throws ApiException {
try {
int messageLength = messageData.length();
GnapUtils.log("Message Length ", String.valueOf(messageLength));
MessageWriter req = new MessageWriter();
req.add(messageLength, 2);
req.addRange(messageData.toArray());
IDeviceMessage buildMessage = new DeviceMessage(req.toArray());
GnapUtils.log("Final Request with header and data", buildMessage.toString());
byte[] responseBuffer = send(buildMessage);
return mapResponse(responseBuffer, builder);
} catch (GatewayTimeoutException exc) {
throw exc;
} catch (GatewayException exc) {
throw new GatewayException(exc.getMessage(), exc.getResponseCode(), exc.getResponseText());
} catch (Exception ex) {
throw new ApiException(ex.getMessage());
}
}
private > Transaction mapResponse(byte[] buffer, T builder) throws Exception {
Transaction result = new Transaction();
String response = new String(buffer);
GnapUtils.log("Response ", response);
String header = response.substring(0, 48);
String data = response.substring(48,response.length()-1);
TransactionReference reference = new TransactionReference();
GnapUtils.log("Response Header", header);
GnapResponse gnapResponse = new GnapResponse();
GnapMessageHeader gnapMessageHeader = buildResponseHeader(header);
GnapResponseData gnapResponseData = buildResponseData(data, reference);
gnapResponse.setGnapMessageHeader(gnapMessageHeader);
gnapResponse.setGnapResponseData(gnapResponseData);
result.setGnapResponse(gnapResponse);
IPaymentMethod paymentMethod = builder.getPaymentMethod();
if(paymentMethod !=null) {
if (paymentMethod instanceof TransactionReference) {
TransactionReference originalReference = (TransactionReference) builder.getPaymentMethod();
reference.setOriginalPaymentMethod(originalReference.getOriginalPaymentMethod());
} else {
reference.setOriginalPaymentMethod(paymentMethod);
reference.setPaymentMethodType(builder.getPaymentMethod().getPaymentMethodType());
}
}
reference.setOriginalAmount(builder.getAmount());
reference.setOriginalTransactionType(builder.getTransactionType());
result.setResponseCode(gnapResponseData.getApprovalCode());
result.setTransactionReference(reference);
return result;
}
public static & IStringConstant> T readFidEnum(String value, Class clazz) {
return ReverseStringEnumMap.parse(value, clazz);
}
@Override
public String serializeRequest(AuthorizationBuilder builder) throws ApiException {
return null;
}
@Override
public NetworkMessageHeader sendKeepAlive() throws ApiException {
return null;
}
@Override
public boolean supportsHostedPayments() {
return false;
}
@Override
public boolean supportsOpenBanking() {
return false;
}
private GnapResponseData buildResponseData(String sData, TransactionReference transactionReference) throws Exception {
GnapResponseData gnapData = new GnapResponseData();
GnapProdSubFids gnapProdSubFids = new GnapProdSubFids();
String fidString = "";
String subFidString = "";
if (sData.contains(fs)) {
fidString = sData.substring(sData.indexOf(fs)).substring(1);
}
if (sData.contains(rs)) {
subFidString = sData.substring(sData.indexOf(rs)).substring(1);
}
String[] fidValues = fidString.split(fs);
String[] subFidValues = subFidString.split(rs);
GnapUtils.log("*************** Response FIDs *****************", "*****");
for (String splt : fidValues) {
if (!(splt.isEmpty())) {
GnapFIDS gnapFIDS = readFidEnum(String.valueOf(splt.charAt(0)),GnapFIDS.class);
String fid = splt.substring(1);
GnapUtils.log("FID : " + gnapFIDS.getValue(),fid);
switch (gnapFIDS) {
//FID_B("Transaction Amount")
case FID_B:
gnapData.setTransactionAmount(new BigDecimal(fid));
transactionReference.setOriginalApprovedAmount(gnapData.getTransactionAmount());
break;
// FID_F("Approval Code")
case FID_F:
transactionReference.setOriginalProcessingCode(fid);
gnapData.setApprovalCode(fid);
break;
//FID_L("Balance Info")
case FID_L:
BalanceInfo balanceInfo=new BalanceInfo();
StringParser sp = new StringParser(fid);
balanceInfo.setAccountType1(sp.readString(2));
balanceInfo.setAmountType1(GnapConnector.readFidEnum(sp.readString(2),AmountType.class));
balanceInfo.setAmountSign1(sp.readString(1));
balanceInfo.setCurrencyCode1(sp.readString(3));
balanceInfo.setAmount1(new BigDecimal(sp.readString(12)));
if(fid.trim().length()>20) {
balanceInfo.setAccountType2(sp.readString(2));
balanceInfo.setAmountType2(GnapConnector.readFidEnum(sp.readString(2),AmountType.class));
balanceInfo.setAmountSign2(sp.readString(1));
balanceInfo.setCurrencyCode2(sp.readString(3));
balanceInfo.setAmount2(new BigDecimal(sp.readString(12)));
}
gnapData.setBalanceInfo(balanceInfo);
break;
// FID_M("PIN Encryption Key")
case FID_M:
gnapData.setPinEncryptionKey(fid);
break;
//FID_Q("Echo Data")
case FID_Q:
gnapData.setEchoData(fid);
break;
//FID_X("ISO Response Code")
case FID_X:
transactionReference.setIsoResponseCode(GnapConnector.readFidEnum(fid, ISOResponseCode.class));
gnapData.setIsoResponseCode(GnapConnector.readFidEnum(fid, ISOResponseCode.class));
if(transactionReference.getIsoResponseCode()!=null && transactionReference.getIsoResponseCode().equals(ISOResponseCode.PartialApproval)){
transactionReference.setPartialApproval(true);
}
break;
//FID_g("Response Message")
case FID_g:
gnapData.setResponseMessage(fid);
break;
// FID_h("Sequence Number")
case FID_h:
SequenceNumber sn = new SequenceNumber();
sn.setDayCounter(Integer.parseInt(fid.substring(0, 3)));
sn.setShiftCounter(Integer.parseInt(fid.substring(3, 6)));
sn.setBatchCounter(Integer.parseInt(fid.substring(6, 9)));
sn.setSequenceCounter(Integer.parseInt(fid.substring(9, 12)));
sn.setIndicator(Integer.parseInt(fid.substring(12)));
gnapData.setSequenceNumber(sn);
break;
//FID_j("Mastercard Banknet Reference Number, Visa Transaction Identifier or Discover Network Reference ID")
case FID_j:
transactionReference.setTransactionIdentifier(fid);
break;
//FID_m("Day Totals")
case FID_m:
GnapBatchTotal batchTotalRes = new GnapBatchTotal();
batchTotalRes.setTotalSalesTransaction(Integer.parseInt(fid.substring(6, 10)));
batchTotalRes.setSignTotalSale(GnapConnector.readFidEnum(fid.substring(10,11), BatchTotalSign.class));
batchTotalRes.setTotalSaleAmount(StringUtils.toString(fid.substring(11, 20), 2));
batchTotalRes.setTotalRefundTransaction(Integer.parseInt(fid.substring(20, 24)));
batchTotalRes.setSignTotalRefund(GnapConnector.readFidEnum(fid.substring(24,25), BatchTotalSign.class));
batchTotalRes.setTotalRefundAmount(StringUtils.toString(fid.substring(26, 34), 2));
batchTotalRes.setTotalAdjustmentTransaction(Integer.parseInt(fid.substring(34, 38)));
batchTotalRes.setSignTotalAdjustment(GnapConnector.readFidEnum(fid.substring(38,39), BatchTotalSign.class));
batchTotalRes.setTotalAdjustmentAmount(StringUtils.toString(fid.substring(39, 47), 2));
gnapData.setDayTotals(batchTotalRes);
break;
//FID_5("Transaction Info")
case FID_5:
transactionReference.setOriginalTransactionInfo(fid);
gnapData.setTransactionInfo(fid);
break;
//FID_6("Product Sub-FIDs")
case FID_6:
for (String sf : subFidValues) {
GnapSubFids gnapSubFIDS = readFidEnum(String.valueOf(sf.charAt(0)),GnapSubFids.class);
String subFid = sf.substring(1);
GnapUtils.log(" SUBFID : " + gnapSubFIDS.getValue(), subFid);
switch (gnapSubFIDS) {
//subFID_E("POS Entry Mode")
case subFID_E:
transactionReference.setOriginalPosEntryMode(subFid);
gnapProdSubFids.setPosEntryMode(subFid);
break;
//subFID_H("Card Verification Digits Presence indicator and Result")
case subFID_H:
gnapProdSubFids.setCardPresenceIndicator(GnapConnector.readFidEnum(subFid, CardIdentifierPresenceIndicator.class));
break;
//subFID_I("Transaction Currency Code (TCC)")
case subFID_I:
gnapProdSubFids.setTransactionCurrencyCode(subFid);
break;
//subFID_Q("EMV Response Data")
case subFID_Q:
gnapProdSubFids.setEmvResponseData(subFid);
break;
//subFID_R("EMV Additional Response Data")
case subFID_R:
gnapProdSubFids.setEmvAdditionalResponseData(subFid);
break;
//subFID_W("CAVV/AAV Result Code")
case subFID_W:
gnapProdSubFids.setCavvResultCode(subFid);
break;
}
}
break;
}
}
}
gnapData.setGnapProdSubFids(gnapProdSubFids);
return gnapData;
}
private GnapMessageHeader buildResponseHeader(String header) {
GnapMessageHeader gnapMessageHeader = new GnapMessageHeader();
StringParser sp = new StringParser(header);
gnapMessageHeader.setDeviceType(sp.readString(2));
gnapMessageHeader.setTransmissionNumber(sp.readString(2));
gnapMessageHeader.setTerminalId(sp.readString(16));
sp.readString(6); //Filler
gnapMessageHeader.setCurrentDate(sp.readString(6));
gnapMessageHeader.setCurrentTime(sp.readString(6));
gnapMessageHeader.setMessageType(sp.readStringConstant(1, MessageType.class));
gnapMessageHeader.setMessageSubType(sp.readStringConstant(1, MessageSubType.class));
sp.readString(2);
gnapMessageHeader.setTransactionCode(transCode);
gnapMessageHeader.setProcessingFlag1(sp.readInt(1));
gnapMessageHeader.setProcessingFlag2(sp.readInt(1));
GnapUtils.log("Processing Flag", String.valueOf(gnapMessageHeader.getProcessingFlag2()));
gnapMessageHeader.setProcessingFlag3(sp.readInt(1));
gnapMessageHeader.setResponseCode(sp.readString(3));
GnapUtils.log("Response Code", gnapMessageHeader.getResponseCode());
return gnapMessageHeader;
}
private MessageWriter buildRequestHeader(GnapMessageHeader header, AcceptorConfig config) {
MapGnapFids mg = new MapGnapFids();
mg.add(config.getDeviceType());
mg.add(StringUtils.padLeft(header.getTransmissionNumber(), 2, '0'));
mg.add(StringUtils.padRight(terminalId, 16, ' '));
mg.add(StringUtils.padLeft("", 6, ' '));
mg.add(header.getCurrentDate());
mg.add(header.getCurrentTime());
mg.add(LogMessages.MessageType, getMessageType(header));
mg.add(LogMessages.MessageSubType, header.getMessageSubType().getValue());
mg.add(LogMessages.TransactionCode, header.getTransactionCode().getValue());
transCode=header.getTransactionCode();
mg.add(String.valueOf(header.getProcessingFlag1()));
if (config.isEmvCapable())
mg.add(LogMessages.ProcessingFlag2, ProcessingFlag2.EMVCapableDevice.getValue());
else
mg.add(LogMessages.ProcessingFlag2,ProcessingFlag2.NonEMVDevice.getValue());
mg.add(String.valueOf(header.getProcessingFlag3()));
mg.add(header.getResponseCode());
return mg.getWriterObject();
}
private String getTransactionAmount(T builder) {
BigDecimal tranAmt = builder.getAmount();
if (builder.getSurchargeAmount() != null)
tranAmt = tranAmt.add(builder.getSurchargeAmount());
else if (builder.getTaxAmount() != null)
tranAmt = tranAmt.add(builder.getTaxAmount());
else if (builder.getTipAmount() != null)
tranAmt = tranAmt.add(builder.getTipAmount());
else if (builder.getCashBackAmount() != null)
tranAmt = tranAmt.add(builder.getCashBackAmount());
return StringUtils.toNumeric(tranAmt);
}
private String getEmvReqData(EmvData tagData) {
StringBuilder sb = new StringBuilder();
sb.append("01");
sb.append(tagData.getCryptogramInformationData());
sb.append(tagData.getTerminalCountryCode().substring(1));
sb.append(tagData.getEMVTransactionDate());
sb.append(tagData.getApplicationCryptogram());
sb.append(tagData.getApplicationInterchangeProfile());
sb.append(tagData.getApplicationTransactionCounter());
sb.append(tagData.getUnpredictableNumber());
sb.append(tagData.getTerminalVerificationResults());
sb.append(tagData.getEMVTransactionType());
sb.append(tagData.getTransactionCurrencyCode().substring(1));
sb.append(tagData.getCryptogramAmount());
sb.append(tagData.getIssuerApplicationData());
return sb.toString();
}
private String getEmvAdditionalReqData(EmvData tagData) {
StringBuilder sb = new StringBuilder();
sb.append("01");
sb.append(tagData.getCardSequenceNumber());
sb.append(tagData.getEMVTerminalType());
sb.append(tagData.getCustomerVerificationResults());
sb.append(tagData.getApplicationVersionNumber());
sb.append(tagData.getDedicatedFileName());
return sb.toString();
}
private String getMessageType(GnapMessageHeader messageHeader)
{
if (messageHeader.getTransactionCode().equals(TransactionCode.EndOfBatch) || messageHeader.getTransactionCode().equals(TransactionCode.EndOfPeriod)){
return MessageType.AdministrativeTransactions.getValue();
}
else {
return MessageType.FinancialTransactions.getValue();
}
}
private String getManualTrackData(String cardNumber,String expiry) {
StringBuilder sb=new StringBuilder();
sb.append("M");
sb.append(cardNumber);
sb.append("=");
sb.append(expiry);
sb.append("0?");
return sb.toString();
}
private String accountTypeMapping(AccountType accountType) {
if (accountType.equals(AccountType.Checking))
return GnapAccountType.ChequingAccount.getValue();
else if (accountType.equals(AccountType.Savings))
return GnapAccountType.SavingsAccount.getValue();
else
return GnapAccountType.DefaultAccountInteracAndUP.getValue();
}
private > void setTransactionCodeInHeader(GnapMessageHeader header,T builder) {
TransactionType transactionType = builder.getTransactionType();
if(builder instanceof AuthorizationBuilder){
if(transactionType.equals(TransactionType.Sale)){
if(header.getTransactionCode()!=null && header.getTransactionCode().equals(TransactionCode.TelephoneAuthPurchase)) {
header.setTransactionCode(TransactionCode.TelephoneAuthPurchase);
} else {
header.setTransactionCode(TransactionCode.Purchase);
}
}else if(transactionType.equals(TransactionType.Auth)) {
header.setTransactionCode(TransactionCode.PreAuthorization);
} else if(transactionType.equals(TransactionType.Refund)){
header.setTransactionCode(TransactionCode.Return);
}
}else if(builder instanceof ManagementBuilder){
TransactionReference reference =(TransactionReference) builder.getPaymentMethod();
if(transactionType.equals(TransactionType.BatchClose)) {
if(((ManagementBuilder)builder).getBatchCloseType().equals(BatchCloseType.Forced)) {
header.setTransactionCode(TransactionCode.EndOfBatch);
} else if(((ManagementBuilder)builder).getBatchCloseType().equals(BatchCloseType.EndOfShift)) {
header.setTransactionCode(TransactionCode.EndOfPeriod);
}
} else if( (header.getMessageSubType().equals(MessageSubType.StoreAndForwardTransactions)||header.getMessageSubType().equals(MessageSubType.TimeoutReversalStoreAndForwardTransaction))
&& reference.getOriginalTransactionType().equals(TransactionType.Refund) && transactionType.equals(TransactionType.Void) ){
header.setTransactionCode(TransactionCode.SAFReturnVoid);
} else if((header.getMessageSubType().equals(MessageSubType.StoreAndForwardTransactions)||header.getMessageSubType().equals(MessageSubType.TimeoutReversalStoreAndForwardTransaction))
&& reference.getOriginalTransactionType().equals(TransactionType.Sale) && transactionType.equals(TransactionType.Void)) {
header.setTransactionCode(TransactionCode.SAFPurchaseVoid);
} else if((header.getMessageSubType().equals(MessageSubType.OnlineTransactions)||header.getMessageSubType().equals(MessageSubType.TimeoutReversalOnlineTransaction))
&& reference.getOriginalTransactionType().equals(TransactionType.Refund) && transactionType.equals(TransactionType.Void)) {
header.setTransactionCode(TransactionCode.OnlineReturnVoid);
}else if((header.getMessageSubType().equals(MessageSubType.OnlineTransactions)||header.getMessageSubType().equals(MessageSubType.TimeoutReversalOnlineTransaction))
&& reference.getOriginalTransactionType().equals(TransactionType.Sale) && transactionType.equals(TransactionType.Void)) {
header.setTransactionCode(TransactionCode.OnlinePurchaseVoid);
}else if(transactionType.equals(TransactionType.PreAuthCompletion)) {
header.setTransactionCode(TransactionCode.PreAuthorizationCompletion);
}
}
}
private String getDraftCapture(CardBrand cardBrand,TransactionType transactionType){
if(transactionType.equals(TransactionType.Auth) || cardBrand.equals(CardBrand.UnionPay))
return DraftCaptureFlag.NonDraftCapture.getValue();
else
return DraftCaptureFlag.DraftCapture.getValue();
}
private String mapEntryMethod(EntryMethod entryMethod){
if(entryMethod.equals(EntryMethod.Manual)) {
return "01";
}
return null;
}
private String getShortExpiry(ICardData card) {
if(card.getExpMonth() != null && card.getExpYear() != null) {
return card.getExpYear().toString().substring(2, 4)+StringUtils.padLeft(card.getExpMonth().toString(), 2, '0');
}
return null;
}
private boolean isApprovalCodeValid(CardBrand cardBrand,TransactionType transactionType){
if(cardBrand.equals(CardBrand.Interac) && (transactionType.equals(TransactionType.Void) || transactionType.equals(TransactionType.Refund))){
return false;
}
return true;
}
}
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