public bool IsStopExecuting(ByteString txReturnValue, out string preExecutionInformation)
{
var chargeTransactionFeesOutput = new ChargeTransactionFeesOutput();
chargeTransactionFeesOutput.MergeFrom(txReturnValue);
preExecutionInformation = chargeTransactionFeesOutput.ChargingInformation;
return(!chargeTransactionFeesOutput.Success);
}
/// <summary>
/// Related transactions will be generated by acs1 pre-plugin service,
/// and will be executed before the origin transaction.
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public override ChargeTransactionFeesOutput ChargeTransactionFees(ChargeTransactionFeesInput input)
{
AssertTransactionGeneratedByPlugin();
Assert(input.MethodName != null && input.ContractAddress != null, "Invalid charge transaction fees input.");
// Primary token not created yet.
if (State.ChainPrimaryTokenSymbol.Value == null)
{
return(new ChargeTransactionFeesOutput {
Success = true
});
}
// Record tx fee bill during current charging process.
var bill = new TransactionFeeBill();
var fromAddress = Context.Sender;
var methodFees = Context.Call <MethodFees>(input.ContractAddress, nameof(GetMethodFee),
new StringValue {
Value = input.MethodName
});
var successToChargeBaseFee = true;
if (methodFees != null && methodFees.Fees.Any())
{
successToChargeBaseFee = ChargeBaseFee(GetBaseFeeDictionary(methodFees), ref bill);
}
var successToChargeSizeFee = true;
if (!IsMethodFeeSetToZero(methodFees))
{
// Then also do not charge size fee.
successToChargeSizeFee = ChargeSizeFee(input, ref bill);
}
// Update balances.
foreach (var tokenToAmount in bill.FeesMap)
{
ModifyBalance(fromAddress, tokenToAmount.Key, -tokenToAmount.Value);
Context.Fire(new TransactionFeeCharged
{
Symbol = tokenToAmount.Key,
Amount = tokenToAmount.Value
});
if (tokenToAmount.Value == 0)
{
Context.LogDebug(() => $"Maybe incorrect charged tx fee of {tokenToAmount.Key}: it's 0.");
}
}
var chargingResult = successToChargeBaseFee && successToChargeSizeFee;
var chargingOutput = new ChargeTransactionFeesOutput {
Success = chargingResult
};
if (!chargingResult)
{
chargingOutput.ChargingInformation = "Transaction fee not enough.";
}
return(chargingOutput);
}
