@Override
void validateAttachment(Transaction transaction) throws NxtException.ValidationException {
Attachment.MonetarySystemCurrencyMinting attachment =
(Attachment.MonetarySystemCurrencyMinting) transaction.getAttachment();
Currency currency = Currency.getCurrency(attachment.getCurrencyId());
CurrencyType.validate(currency, transaction);
if (attachment.getUnits() <= 0) {
throw new NxtException.NotValidException(
"Invalid number of units: " + attachment.getUnits());
}
if (attachment.getUnits()
> (currency.getMaxSupply() - currency.getReserveSupply())
/ Constants.MAX_MINTING_RATIO) {
throw new NxtException.NotValidException(
String.format(
"Cannot mint more than 1/%d of the total units supply in a single request",
Constants.MAX_MINTING_RATIO));
}
if (!currency.isActive()) {
throw new NxtException.NotCurrentlyValidException(
"Currency not currently active " + attachment.getJSONObject());
}
long counter =
CurrencyMint.getCounter(attachment.getCurrencyId(), transaction.getSenderId());
if (attachment.getCounter() <= counter) {
throw new NxtException.NotCurrentlyValidException(
String.format(
"Counter %d has to be bigger than %d", attachment.getCounter(), counter));
}
if (!CurrencyMinting.meetsTarget(transaction.getSenderId(), currency, attachment)) {
throw new NxtException.NotCurrentlyValidException(
String.format("Hash doesn't meet target %s", attachment.getJSONObject()));
}
}
