private Transaction(KeyPair sourceAccount, int fee, long sequenceNumber, Operation[] operations, Memo memo, TimeBounds timeBounds)
{
SourceAccount = sourceAccount ?? throw new ArgumentNullException(nameof(sourceAccount), "sourceAccount cannot be null");
SequenceNumber = sequenceNumber;
Operations = operations ?? throw new ArgumentNullException(nameof(operations), "operations cannot be null");
if (operations.Length == 0)
throw new ArgumentNullException(nameof(operations), "At least one operation required");
Fee = fee;
Signatures = new List<DecoratedSignature>();
Memo = memo ?? Memo.None();
TimeBounds = timeBounds;
}
/// <summary>
/// Generates Transaction XDR object.
/// </summary>
/// <returns></returns>
public xdr.Transaction ToXdr()
{
// fee
Uint32 fee = new Uint32 {
InnerValue = Fee
};
// sequenceNumber
Int64 sequenceNumberUint = new Int64(SequenceNumber);
SequenceNumber sequenceNumber = new SequenceNumber {
InnerValue = sequenceNumberUint
};
// sourceAccount
AccountID sourceAccount = new AccountID {
InnerValue = SourceAccount.XdrPublicKey
};
// operations
xdr.Operation[] operations = new xdr.Operation[Operations.Length];
for (int i = 0; i < Operations.Length; i++)
{
operations[i] = Operations[i].ToXdr();
}
// ext
xdr.Transaction.TransactionExt ext = new xdr.Transaction.TransactionExt {
Discriminant = 0
};
xdr.Transaction transaction = new xdr.Transaction
{
Fee = fee,
SeqNum = sequenceNumber,
SourceAccount = sourceAccount,
Operations = operations,
Memo = Memo.ToXdr(),
TimeBounds = TimeBounds?.ToXdr(),
Ext = ext
};
return(transaction);
}
public static Transaction FromEnvelopeXdr(TransactionEnvelope envelope)
{
xdr.Transaction transactionXdr = envelope.Tx;
int fee = transactionXdr.Fee.InnerValue;
KeyPair sourceAccount = KeyPair.FromXdrPublicKey(transactionXdr.SourceAccount.InnerValue);
long sequenceNumber = transactionXdr.SeqNum.InnerValue.InnerValue;
Memo memo = Memo.FromXdr(transactionXdr.Memo);
TimeBounds timeBounds = TimeBounds.FromXdr(transactionXdr.TimeBounds);
Operation[] operations = new Operation[transactionXdr.Operations.Length];
for (int i = 0; i < transactionXdr.Operations.Length; i++)
{
operations[i] = Operation.FromXdr(transactionXdr.Operations[i]);
}
Transaction transaction = new Transaction(sourceAccount, fee, sequenceNumber, operations, memo, timeBounds);
foreach (var signature in envelope.Signatures)
{
transaction.Signatures.Add(signature);
}
return transaction;
}