Itbit refactored to be more consistent with rest of BATM system

This commit is contained in:
b00lean 2015-11-05 17:13:08 +01:00
parent a5bdbdee07
commit 9cf4bc2186
5 changed files with 173 additions and 118 deletions

View File

@ -36,6 +36,7 @@ public interface ICurrencies {
public static final String EUR = "EUR";
public static final String GBP = "GBP";
public static final String JPY = "JPY";
public static final String SGD = "SGD";
public static final String USD = "USD";
public static final String XAF = "XAF";
public static final String XAU = "XAU"; //gold

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@ -28,6 +28,7 @@
<cryptocurrency>BTC</cryptocurrency>
</ratesource>
<ratesource prefix="itbit" name ="itBit.com Exchange" >
<param name="fiatcurrency" />
<cryptocurrency>BTC</cryptocurrency>
</ratesource>
<paymentprocessor prefix="bitcoinpay" name="BitcoinPay.com" >
@ -39,7 +40,6 @@
<param name="pin" />
<cryptocurrency>BTC</cryptocurrency>
</paymentprocessor>
<!-- Bitfinex extension by Orillia BVBA -->
<exchange prefix="bitfinex" name="Bitfinex.com Exchange">
<param name="apikey" />
<param name="apisecret" />
@ -50,6 +50,7 @@
<param name="walletId" />
<param name="apikey" />
<param name="apisecret" />
<param name="fiatcurrency" />
<cryptocurrency>BTC</cryptocurrency>
</exchange>
<cryptologo cryptocurrency="BTC" file="btc.png"/>

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@ -49,11 +49,15 @@ public class BitcoinExtension implements IExtension{
String apiSecret = paramTokenizer.nextToken();
return new BitfinexExchange(apiKey, apiSecret);
} else if ("itbit".equalsIgnoreCase(prefix)) {
String preferredFiatCurrency = ICurrencies.USD;
String userId = paramTokenizer.nextToken();
String walletId = paramTokenizer.nextToken();
String clientKey = paramTokenizer.nextToken();
String clientSecret = paramTokenizer.nextToken();
return new ItBitExchange(userId, walletId, clientKey, clientSecret);
if (paramTokenizer.hasMoreTokens()) {
preferredFiatCurrency = paramTokenizer.nextToken();
}
return new ItBitExchange(userId, walletId, clientKey, clientSecret, preferredFiatCurrency);
}
}
return null;
@ -138,7 +142,7 @@ public class BitcoinExtension implements IExtension{
return new BitcoinAverageRateSource(ICurrencies.USD);
}else if ("btcfix".equalsIgnoreCase(exchangeType)) {
BigDecimal rate = BigDecimal.ZERO;
String preferedFiatCurrency = ICurrencies.USD;
String preferredFiatCurrency = ICurrencies.USD;
if (st.hasMoreTokens()) {
try {
rate = new BigDecimal(st.nextToken());
@ -146,13 +150,17 @@ public class BitcoinExtension implements IExtension{
}
}
if (st.hasMoreTokens()) {
preferedFiatCurrency = st.nextToken();
preferredFiatCurrency = st.nextToken();
}
return new FixPriceRateSource(rate,preferedFiatCurrency);
return new FixPriceRateSource(rate,preferredFiatCurrency);
}else if ("bitfinex".equalsIgnoreCase(exchangeType)) {
return new BitfinexExchange("**","**");
}else if ("itbit".equalsIgnoreCase(exchangeType)) {
return new ItBitExchange();
String preferredFiatCurrency = ICurrencies.USD;
if (st.hasMoreTokens()) {
preferredFiatCurrency = st.nextToken();
}
return new ItBitExchange(preferredFiatCurrency);
}
}
return null;

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@ -1,5 +1,5 @@
/*************************************************************************************
* Copyright (C) 2014 GENERAL BYTES s.r.o. All rights reserved.
* Copyright (C) 2015 GENERAL BYTES s.r.o. All rights reserved.
* <p/>
* This software may be distributed and modified under the terms of the GNU
* General Public License version 2 (GPL2) as published by the Free Software
@ -16,10 +16,11 @@
* <p/>
* Other information:
* <p/>
* This implementation was created in cooperation with Orillia BVBA
* This implementation was created in cooperation with Sumbits http://www.getsumbits.com/
************************************************************************************/
package com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges;
import com.generalbytes.batm.server.extensions.ICurrencies;
import com.generalbytes.batm.server.extensions.IExchangeAdvanced;
import com.generalbytes.batm.server.extensions.IRateSourceAdvanced;
import com.generalbytes.batm.server.extensions.ITask;
@ -36,6 +37,9 @@ import com.xeiam.xchange.dto.marketdata.Ticker;
import com.xeiam.xchange.dto.trade.LimitOrder;
import com.xeiam.xchange.dto.trade.MarketOrder;
import com.xeiam.xchange.dto.trade.OpenOrders;
import com.xeiam.xchange.exceptions.ExchangeException;
import com.xeiam.xchange.exceptions.NotAvailableFromExchangeException;
import com.xeiam.xchange.exceptions.NotYetImplementedForExchangeException;
import com.xeiam.xchange.service.polling.account.PollingAccountService;
import com.xeiam.xchange.service.polling.marketdata.PollingMarketDataService;
import com.xeiam.xchange.service.polling.trade.PollingTradeService;
@ -53,8 +57,8 @@ import java.util.concurrent.TimeUnit;
public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceAdvanced {
private String preferredFiatCurrency;
private static final long cacheRefreshSeconds = 30;
private static final Cache<String, BigDecimal> balanceCache = createCache();
private static final Cache<String, BigDecimal> rateCache = createCache();
private static Cache<String, BigDecimal> createCache() {
@ -69,42 +73,67 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
private final Logger log;
private final RateLimiter rateLimiter;
public XChangeExchange(ExchangeSpecification specification) {
public XChangeExchange(ExchangeSpecification specification, String preferredFiatCurrency) {
exchange = ExchangeFactory.INSTANCE.createExchange(specification);
name = exchange.getExchangeSpecification().getExchangeName();
log = LoggerFactory.getLogger("batm.master." + name);
log = LoggerFactory.getLogger("batm.master.exchange." + name);
rateLimiter = RateLimiter.create(getAllowedCallsPerSecond());
this.preferredFiatCurrency = preferredFiatCurrency;
}
protected abstract boolean isWithdrawSuccessful(String result);
protected abstract double getAllowedCallsPerSecond();
// exchanges that use non standard currency codes can override this
protected String mapCurrency(String currency) {
return currency;
}
private String checkSupportedCrypto(String currency) {
currency = mapCurrency(currency);
private boolean isCryptoCurrencySupported(String currency) {
if (!getCryptoCurrencies().contains(currency)) {
log.debug("{} exchange doesn't support cryptocurrency '{}'", name, currency);
return null;
return false;
}
return currency;
return true;
}
private String checkSupportedFiat(String currency) {
currency = mapCurrency(currency);
if (!getCryptoCurrencies().contains(currency)) {
private boolean isFiatCurrencySupported(String currency) {
if (!getFiatCurrencies().contains(currency)) {
log.debug("{} exchange doesn't support fiat currency '{}'", name, currency);
return false;
}
return true;
}
class RateCaller implements Callable<BigDecimal> {
private final String key;
RateCaller(String key) {
this.key = key;
}
@Override
public BigDecimal call() throws Exception {
String[] keyParts = getCacheKeyParts(key);
String cryptoCurrency = keyParts[0];
String fiatCurrency = keyParts[1];
try {
return exchange.getPollingMarketDataService()
.getTicker(new CurrencyPair(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency), fiatCurrency))
.getLast();
} catch (ExchangeException e) {
e.printStackTrace();
} catch (NotAvailableFromExchangeException e) {
e.printStackTrace();
} catch (NotYetImplementedForExchangeException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
return currency;
}
@Override
public BigDecimal getExchangeRateLast(String cryptoCurrency, String fiatCurrency) {
String key = getKey(cryptoCurrency, fiatCurrency);
String key = buildCacheKey(cryptoCurrency, fiatCurrency);
try {
BigDecimal result = rateCache.get(key, new RateCaller(key));
log.debug("{} exchange rate request: {} = {}", name, key, result);
@ -115,40 +144,54 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
}
}
private String getKey(String cryptoCurrency, String fiatCurrency) {
private static String buildCacheKey(String cryptoCurrency, String fiatCurrency) {
return String.format("%s:%s", cryptoCurrency, fiatCurrency);
}
private String[] getKeyParts(String key) {
private static String[] getCacheKeyParts(String key) {
return key.split(":");
}
@Override
public BigDecimal getCryptoBalance(String cryptoCurrency) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
return cryptoCurrency == null ? BigDecimal.ZERO : getBalance(cryptoCurrency);
if (!isCryptoCurrencySupported(cryptoCurrency)) {
return BigDecimal.ZERO;
}
try {
BigDecimal balance = exchange.getPollingAccountService()
.getAccountInfo()
.getWallet(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency))
.getBalance();
log.debug("{} exchange balance request: {} = {}", name, cryptoCurrency, balance);
return balance;
} catch (IOException e) {
e.printStackTrace();
log.error("{} exchange balance request: {}", name, cryptoCurrency, e);
}
return null;
}
@Override
public BigDecimal getFiatBalance(String fiatCurrency) {
fiatCurrency = checkSupportedFiat(fiatCurrency);
return fiatCurrency == null ? BigDecimal.ZERO : getBalance(fiatCurrency);
}
private BigDecimal getBalance(String currency) {
try {
BigDecimal balance = balanceCache.get(currency, new BalanceCaller(currency));
log.debug("{} exchange balance request: {} = {}", name, currency, balance);
return balance;
} catch (ExecutionException e) {
log.error("{} exchange balance request: {}", name, currency, e);
return null;
if (!isFiatCurrencySupported(fiatCurrency)) {
return BigDecimal.ZERO;
}
try {
BigDecimal balance = exchange.getPollingAccountService()
.getAccountInfo()
.getWallet(fiatCurrency)
.getBalance();
log.debug("{} exchange balance request: {} = {}", name, fiatCurrency, balance);
return balance;
} catch (IOException e) {
e.printStackTrace();
log.error("{} exchange balance request: {}", name, fiatCurrency, e);
}
return null;
}
public final String sendCoins(String destinationAddress, BigDecimal amount, String cryptoCurrency, String description) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
if (cryptoCurrency == null) {
if (!isCryptoCurrencySupported(cryptoCurrency)){
return null;
}
@ -156,7 +199,7 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
PollingAccountService accountService = exchange.getPollingAccountService();
try {
String result = accountService.withdrawFunds(cryptoCurrency, amount, destinationAddress);
String result = accountService.withdrawFunds(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency), amount, destinationAddress);
if (isWithdrawSuccessful(result)) {
log.debug("{} exchange withdrawal completed with result: {}", name, result);
return "success";
@ -170,11 +213,15 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
}
public String purchaseCoins(BigDecimal amount, String cryptoCurrency, String fiatCurrencyToUse, String description) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
fiatCurrencyToUse = checkSupportedFiat(fiatCurrencyToUse);
if (cryptoCurrency == null || fiatCurrencyToUse == null) {
return null;
}
if (!isFiatCurrencySupported(fiatCurrencyToUse)) {
return null;
}
if (!isCryptoCurrencySupported(cryptoCurrency)){
return null;
}
PollingAccountService accountService = exchange.getPollingAccountService();
PollingMarketDataService marketService = exchange.getPollingMarketDataService();
@ -183,7 +230,7 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
try {
log.debug("AccountInfo as String: {}", accountService.getAccountInfo());
CurrencyPair currencyPair = new CurrencyPair(cryptoCurrency, fiatCurrencyToUse);
CurrencyPair currencyPair = new CurrencyPair(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency), fiatCurrencyToUse);
Ticker ticker = marketService.getTicker(currencyPair);
@ -191,7 +238,7 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
.limitPrice(ticker.getAsk())
.tradableAmount(amount)
.build();
log.debug("marketOrder = {}", order);
log.debug("limitOrder = {}", order);
String orderId = tradeService.placeLimitOrder(order);
log.debug("orderId = {} {}", orderId, order);
@ -239,24 +286,30 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
@Override
public ITask createPurchaseCoinsTask(BigDecimal amount, String cryptoCurrency, String fiatCurrencyToUse, String description) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
fiatCurrencyToUse = checkSupportedFiat(fiatCurrencyToUse);
if (cryptoCurrency == null || fiatCurrencyToUse == null) {
return null;
}
if (!isCryptoCurrencySupported(cryptoCurrency)) {
return null;
}
if (!isFiatCurrencySupported(fiatCurrencyToUse)) {
return null;
}
return new PurchaseCoinsTask(amount, cryptoCurrency, fiatCurrencyToUse, description);
}
@Override
public String getDepositAddress(String cryptoCurrency) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
if (cryptoCurrency == null) {
return null;
}
if (!isCryptoCurrencySupported(cryptoCurrency)) {
return null;
}
PollingAccountService accountService = exchange.getPollingAccountService();
try {
return accountService.requestDepositAddress(cryptoCurrency);
return accountService.requestDepositAddress(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency));
} catch (IOException e) {
e.printStackTrace();
}
@ -265,12 +318,18 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
@Override
public String sellCoins(BigDecimal cryptoAmount, String cryptoCurrency, String fiatCurrencyToUse, String description) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
fiatCurrencyToUse = checkSupportedFiat(fiatCurrencyToUse);
if (cryptoCurrency == null || fiatCurrencyToUse == null) {
return null;
}
if (!isCryptoCurrencySupported(cryptoCurrency)) {
return null;
}
if (!isFiatCurrencySupported(fiatCurrencyToUse)) {
return null;
}
log.info("Calling {} exchange (sell {} {})", name, cryptoAmount, cryptoCurrency);
PollingAccountService accountService = exchange.getPollingAccountService();
PollingTradeService tradeService = exchange.getPollingTradeService();
@ -278,7 +337,7 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
try {
log.debug("AccountInfo as String: {}", accountService.getAccountInfo());
CurrencyPair currencyPair = new CurrencyPair(cryptoCurrency, fiatCurrencyToUse);
CurrencyPair currencyPair = new CurrencyPair(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency), fiatCurrencyToUse);
MarketOrder order = new MarketOrder(OrderType.ASK, cryptoAmount, currencyPair);
log.debug("marketOrder = {}", order);
@ -329,11 +388,15 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
@Override
public ITask createSellCoinsTask(BigDecimal amount, String cryptoCurrency, String fiatCurrencyToUse, String description) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
fiatCurrencyToUse = checkSupportedFiat(fiatCurrencyToUse);
if (cryptoCurrency == null || fiatCurrencyToUse == null) {
return null;
}
if (!isCryptoCurrencySupported(cryptoCurrency)) {
return null;
}
if (!isFiatCurrencySupported(fiatCurrencyToUse)) {
return null;
}
return new SellCoinsTask(amount, cryptoCurrency, fiatCurrencyToUse, description);
}
@ -357,16 +420,20 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
@Override
public BigDecimal calculateBuyPrice(String cryptoCurrency, String fiatCurrency, BigDecimal cryptoAmount) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
fiatCurrency = checkSupportedFiat(fiatCurrency);
if (cryptoCurrency == null || fiatCurrency == null) {
return null;
}
if (!isCryptoCurrencySupported(cryptoCurrency)) {
return null;
}
if (!isFiatCurrencySupported(fiatCurrency)) {
return null;
}
rateLimiter.acquire();
PollingMarketDataService marketDataService = exchange.getPollingMarketDataService();
try {
CurrencyPair currencyPair = new CurrencyPair(cryptoCurrency, fiatCurrency);
CurrencyPair currencyPair = new CurrencyPair(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency), fiatCurrency);
OrderBook orderBook = marketDataService.getOrderBook(currencyPair);
List<LimitOrder> asks = orderBook.getAsks();
BigDecimal targetAmount = cryptoAmount;
@ -401,16 +468,20 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
@Override
public BigDecimal calculateSellPrice(String cryptoCurrency, String fiatCurrency, BigDecimal cryptoAmount) {
cryptoCurrency = checkSupportedCrypto(cryptoCurrency);
fiatCurrency = checkSupportedFiat(fiatCurrency);
if (cryptoCurrency == null || fiatCurrency == null) {
return null;
}
if (!isCryptoCurrencySupported(cryptoCurrency)){
return null;
}
if(!isFiatCurrencySupported(fiatCurrency)) {
return null;
}
rateLimiter.acquire();
PollingMarketDataService marketDataService = exchange.getPollingMarketDataService();
try {
CurrencyPair currencyPair = new CurrencyPair(cryptoCurrency, fiatCurrency);
CurrencyPair currencyPair = new CurrencyPair(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency), fiatCurrency);
OrderBook orderBook = marketDataService.getOrderBook(currencyPair);
List<LimitOrder> bids = orderBook.getBids();
@ -445,38 +516,6 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
}
class RateCaller implements Callable<BigDecimal> {
private final String key;
RateCaller(String key) {
this.key = key;
}
@Override
public BigDecimal call() throws Exception {
String[] keyParts = getKeyParts(key);
return exchange.getPollingMarketDataService()
.getTicker(new CurrencyPair(keyParts[0], keyParts[1]))
.getLast();
}
}
class BalanceCaller implements Callable<BigDecimal> {
private final String currency;
BalanceCaller(String currency) {
this.currency = currency;
}
@Override
public BigDecimal call() throws Exception {
return exchange.getPollingAccountService()
.getAccountInfo()
.getWallet(currency)
.getBalance();
}
}
class PurchaseCoinsTask implements ITask {
private long MAXIMUM_TIME_TO_WAIT_FOR_ORDER_TO_FINISH = 5 * 60 * 60 * 1000; //5 hours
@ -506,7 +545,7 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
try {
log.debug("AccountInfo as String: {}", accountService.getAccountInfo());
CurrencyPair currencyPair = new CurrencyPair(cryptoCurrency, fiatCurrencyToUse);
CurrencyPair currencyPair = new CurrencyPair(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency), fiatCurrencyToUse);
Ticker ticker = marketService.getTicker(currencyPair);
LimitOrder order = new LimitOrder.Builder(OrderType.BID, currencyPair)
@ -632,7 +671,7 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
try {
log.debug("AccountInfo as String: {}", accountService.getAccountInfo());
CurrencyPair currencyPair = new CurrencyPair(cryptoCurrency, fiatCurrencyToUse);
CurrencyPair currencyPair = new CurrencyPair(translateCryptoCurrencySymbolToExchangeSpecificSymbol(cryptoCurrency), fiatCurrencyToUse);
MarketOrder order = new MarketOrder(OrderType.ASK, cryptoAmount, currencyPair);
log.debug("marketOrder = {}", order);
@ -727,4 +766,12 @@ public abstract class XChangeExchange implements IExchangeAdvanced, IRateSourceA
}
}
@Override
public String getPreferredFiatCurrency() {
return preferredFiatCurrency;
}
protected String translateCryptoCurrencySymbolToExchangeSpecificSymbol(String from) {
return from;
}
}

View File

@ -1,5 +1,5 @@
/*************************************************************************************
* Copyright (C) 2014 GENERAL BYTES s.r.o. All rights reserved.
* Copyright (C) 2015 GENERAL BYTES s.r.o. All rights reserved.
* <p/>
* This software may be distributed and modified under the terms of the GNU
* General Public License version 2 (GPL2) as published by the Free Software
@ -16,20 +16,27 @@
* <p/>
* Other information:
* <p/>
* This implementation was created in cooperation with Orillia BVBA
* This implementation was created in cooperation with Sumbits http://www.getsumbits.com/
************************************************************************************/
package com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.itbit;
import com.generalbytes.batm.server.extensions.ICurrencies;
import com.generalbytes.batm.server.extensions.IExchangeAdvanced;
import com.generalbytes.batm.server.extensions.IRateSource;
import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.XChangeExchange;
import com.xeiam.xchange.ExchangeSpecification;
import java.util.HashSet;
import java.util.Set;
public class ItBitExchange extends XChangeExchange implements IExchangeAdvanced, IRateSource {
public class ItBitExchange extends XChangeExchange {
public ItBitExchange(String preferredFiatCurrency) {
super(getDefaultSpecification(), preferredFiatCurrency);
}
public ItBitExchange(String userId, String walletId, String clientKey, String clientSecret, String preferredFiatCurrency) {
super(getSpecification(userId, walletId, clientKey, clientSecret), preferredFiatCurrency);
}
private static ExchangeSpecification getDefaultSpecification() {
return new com.xeiam.xchange.itbit.v1.ItBitExchange().getDefaultExchangeSpecification();
@ -44,18 +51,10 @@ public class ItBitExchange extends XChangeExchange implements IExchangeAdvanced,
return spec;
}
public ItBitExchange() {
super(getDefaultSpecification());
}
public ItBitExchange(String userId, String walletId, String clientKey, String clientSecret) {
super(getSpecification(userId, walletId, clientKey, clientSecret));
}
@Override
public Set<String> getCryptoCurrencies() {
Set<String> cryptoCurrencies = new HashSet<String>();
cryptoCurrencies.add(ICurrencies.XBT);
cryptoCurrencies.add(ICurrencies.BTC);
return cryptoCurrencies;
}
@ -64,14 +63,10 @@ public class ItBitExchange extends XChangeExchange implements IExchangeAdvanced,
Set<String> fiatCurrencies = new HashSet<String>();
fiatCurrencies.add(ICurrencies.USD);
fiatCurrencies.add(ICurrencies.EUR);
fiatCurrencies.add(ICurrencies.SGD);
return fiatCurrencies;
}
@Override
public String getPreferredFiatCurrency() {
return ICurrencies.USD;
}
@Override
protected boolean isWithdrawSuccessful(String result) {
return true;
@ -83,7 +78,10 @@ public class ItBitExchange extends XChangeExchange implements IExchangeAdvanced,
}
@Override
protected String mapCurrency(String currency) {
return currency.equals(ICurrencies.BTC) ? ICurrencies.XBT : currency;
protected String translateCryptoCurrencySymbolToExchangeSpecificSymbol(String from) {
if (ICurrencies.BTC.equalsIgnoreCase(from)) {
return "XBT";
}
return from;
}
}