/**
* Parses a currency from the given {@link ParseContext}. Depending on the current {@link
* CurrencyStyle} it interprets the next non empty token, either as
*
* <ul>
* <li>currency code
* <li>currency symbol
* </ul>
*
* Parsing of localized currency names or numeric code is not supported.
*
* @throws UnsupportedOperationException if the {@link CurrencyStyle} is configured to us currency
* names, or numeric codes for formatting.
*/
@Override
public void parse(ParseContext context) throws MonetaryParseException {
String token = context.lookupNextToken();
while (token != null) {
if (token.trim().isEmpty()) {
context.consume(token);
token = context.lookupNextToken();
continue;
}
break;
}
try {
CurrencyUnit cur = null;
switch (style) {
case CODE:
cur = MonetaryCurrencies.getCurrency(token);
context.consume(token);
break;
case SYMBOL:
if (token.startsWith("$")) {
cur = MonetaryCurrencies.getCurrency("USD");
context.consume("$");
} else if (token.startsWith("€")) {
cur = MonetaryCurrencies.getCurrency("EUR");
context.consume("€");
} else if (token.startsWith("£")) {
cur = MonetaryCurrencies.getCurrency("GBP");
context.consume("£");
}
cur = MonetaryCurrencies.getCurrency(token);
context.consume(token);
break;
case NAME:
case NUMERIC_CODE:
default:
throw new UnsupportedOperationException("Not yet implemented");
}
if (cur != null) {
context.setParsedCurrency(cur);
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public CurrencyUnit parse(String text, Locale locale) {
return MonetaryCurrencies.getCurrency(text);
}
/** This enumerated class provides keys for the currency symbols and values. */
public enum CurrencySymbolKeys implements CurrencySupplier {
// Declared in order they should appear in a chooser.
/** No symbol. */
NONE(I18NHelper.getSharedProperty("none"), "", MonetaryCurrencies.getCurrency("XXX")),
/** The Euro. */
EURO("\u20ac ", MonetaryCurrencies.getCurrency("EUR")),
/** The US Dollar. */
DOLLAR("$ ", MonetaryCurrencies.getCurrency("USD")),
/** The English Pound. */
POUND("\u00a3 ", MonetaryCurrencies.getCurrency("GBP")),
/** The South African Rand. */
RAND("R ", MonetaryCurrencies.getCurrency("ZAR")),
/** The Brazilian Real. */
REAL("R$ ", MonetaryCurrencies.getCurrency("BRL")),
/** The Russian Ruble. */
RUBLE(" \u0440.", MonetaryCurrencies.getCurrency("RUB"));
//////////////////////////////////////////////////////////////////////////////
// Start of public methods.
//////////////////////////////////////////////////////////////////////////////
/**
* This method returns a string for the enum constant.
*
* @return A string.
*/
public String getSymbol() {
return itsSymbol;
}
/**
* This method returns a currency unit for the enum constant.
*
* @return A currency.
*/
public CurrencyUnit getCurrency() {
return itsCurrency;
}
/**
* This method returns the currency symbol.
*
* @return The currency symbol.
*/
@Override
public String toString() {
return itsIdentifier;
}
//////////////////////////////////////////////////////////////////////////////
// Start of private methods.
//////////////////////////////////////////////////////////////////////////////
private CurrencySymbolKeys(String symbol, CurrencyUnit currency) {
this(symbol, symbol, currency);
}
private CurrencySymbolKeys(String identifier, String symbol, CurrencyUnit currency) {
itsIdentifier = identifier;
itsSymbol = symbol;
itsCurrency = currency;
}
//////////////////////////////////////////////////////////////////////////////
// Start of class members.
//////////////////////////////////////////////////////////////////////////////
private final String itsIdentifier;
private final String itsSymbol;
private final CurrencyUnit itsCurrency;
}
