/// <param name="input"> input tokenstream </param>
/// <param name="synonyms"> synonym map </param>
/// <param name="ignoreCase"> case-folds input for matching with <see cref="Character.ToLower(int, CultureInfo)"/>
/// in using <see cref="CultureInfo.InvariantCulture"/>.
/// Note, if you set this to <c>true</c>, its your responsibility to lowercase
/// the input entries when you create the <see cref="SynonymMap"/>.</param>
public SynonymFilter(TokenStream input, SynonymMap synonyms, bool ignoreCase)
: base(input)
{
termAtt = AddAttribute <ICharTermAttribute>();
posIncrAtt = AddAttribute <IPositionIncrementAttribute>();
posLenAtt = AddAttribute <IPositionLengthAttribute>();
typeAtt = AddAttribute <ITypeAttribute>();
offsetAtt = AddAttribute <IOffsetAttribute>();
this.synonyms = synonyms;
this.ignoreCase = ignoreCase;
this.fst = synonyms.Fst;
if (fst == null)
{
throw new ArgumentException("fst must be non-null");
}
this.fstReader = fst.GetBytesReader();
// Must be 1+ so that when roll buffer is at full
// lookahead we can distinguish this full buffer from
// the empty buffer:
rollBufferSize = 1 + synonyms.MaxHorizontalContext;
futureInputs = new PendingInput[rollBufferSize];
futureOutputs = new PendingOutputs[rollBufferSize];
for (int pos = 0; pos < rollBufferSize; pos++)
{
futureInputs[pos] = new PendingInput();
futureOutputs[pos] = new PendingOutputs();
}
//System.out.println("FSTFilt maxH=" + synonyms.maxHorizontalContext);
scratchArc = new FST.Arc <BytesRef>();
}
/// <param name="input"> input tokenstream </param>
/// <param name="synonyms"> synonym map </param>
/// <param name="ignoreCase"> case-folds input for matching with <seealso cref="Character#toLowerCase(int)"/>.
/// Note, if you set this to true, its your responsibility to lowercase
/// the input entries when you create the <seealso cref="SynonymMap"/> </param>
public SynonymFilter(TokenStream input, SynonymMap synonyms, bool ignoreCase) : base(input)
{
this.synonyms = synonyms;
this.ignoreCase = ignoreCase;
this.fst = synonyms.fst;
if (fst == null)
{
throw new System.ArgumentException("fst must be non-null");
}
this.fstReader = fst.BytesReader;
// Must be 1+ so that when roll buffer is at full
// lookahead we can distinguish this full buffer from
// the empty buffer:
rollBufferSize = 1 + synonyms.maxHorizontalContext;
futureInputs = new PendingInput[rollBufferSize];
futureOutputs = new PendingOutputs[rollBufferSize];
for (int pos = 0; pos < rollBufferSize; pos++)
{
futureInputs[pos] = new PendingInput();
futureOutputs[pos] = new PendingOutputs();
}
//System.out.println("FSTFilt maxH=" + synonyms.maxHorizontalContext);
scratchArc = new FST.Arc <>();
}
private void AddPendingOutput()
{
var pendingOutput = new PendingOutput();
pendingOutput.Changed += PendingOutput_Changed;
PendingOutputs.Add(pendingOutput);
RecalculateTransaction();
}
private void RemovePendingOutputAction(PendingOutput item)
{
if (PendingOutputs.Remove(item))
{
item.Changed -= PendingOutput_Changed;
RecalculateCreateTransaction();
}
}
private void RecalculateCreateTransaction()
{
if (PendingOutputs.Count > 0 && PendingOutputs.All(x => x.IsValid()))
{
EstimatedFee = 0;
EstimatedRemainingBalance = 0;
FinishCreateTransaction.Executable = true;
}
else
{
FinishCreateTransaction.Executable = false;
}
}
private void RemovePendingOutput(PendingOutput item)
{
if (PendingOutputs.Remove(item))
{
item.Changed -= PendingOutput_Changed;
if (PendingOutputs.Count == 0)
{
AddPendingOutput();
}
RecalculateTransaction();
}
}
private void SignTransaction(bool publish)
{
var outputs = PendingOutputs.Select(po =>
{
var script = po.BuildOutputScript().Script;
return(new Transaction.Output(po.OutputAmount, Transaction.Output.LatestPkScriptVersion, script));
}).ToArray();
var shell = ViewModelLocator.ShellViewModel as ShellViewModel;
if (shell != null)
{
Func <string, Task> action = (passphrase) => SignTransactionWithPassphrase(passphrase, outputs, publish);
shell.VisibleDialogContent = new PassphraseDialogViewModel(shell, "Enter passphrase to sign transaction", "Sign", action);
}
}
private async void AddPendingOutput()
{
var pendingOutput = new PendingOutput();
pendingOutput.Changed += PendingOutput_Changed;
PendingOutputs.Add(pendingOutput);
try
{
await RecalculatePendingTransaction();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}
private void RecalculateTransaction()
{
if (PendingOutputs.Count > 0 && PendingOutputs.All(x => x.IsValid))
{
// TODO: calculate estimated fee
EstimatedFee = 0;
EstimatedRemainingBalance = 0;
// TODO: only make executable if we know the transaction can be created
FinishCreateTransaction.Executable = true;
}
else
{
EstimatedFee = null;
EstimatedRemainingBalance = null;
FinishCreateTransaction.Executable = false;
}
}
private async void RemovePendingOutput(PendingOutput item)
{
if (PendingOutputs.Remove(item))
{
item.Changed -= PendingOutput_Changed;
if (PendingOutputs.Count == 0)
{
AddPendingOutput();
}
try
{
await RecalculatePendingTransaction();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}
}
private async Task <bool> SignTransactionWithPassphrase(string passphrase, Transaction tx, bool publishImmediately)
{
Tuple <Transaction, bool> signingResponse;
var walletClient = App.Current.Synchronizer.WalletRpcClient;
try
{
signingResponse = await walletClient.SignTransactionAsync(passphrase, tx);
}
catch (RpcException ex) when(ex.Status.StatusCode == StatusCode.InvalidArgument)
{
MessageBox.Show(ex.Status.Detail);
return(false);
}
var complete = signingResponse.Item2;
if (!complete)
{
MessageBox.Show("Failed to create transaction input signatures.");
return(false);
}
var signedTransaction = signingResponse.Item1;
if (!publishImmediately)
{
MessageBox.Show("Reviewing signed transaction before publishing is not implemented yet.");
return(false);
}
var serializedTransaction = signedTransaction.Serialize();
var publishedTxHash = await walletClient.PublishTransactionAsync(signedTransaction.Serialize());
_pendingTransaction = null;
_unusedChangeScripts.Remove(SelectedAccount.Account);
PendingOutputs.Clear();
AddPendingOutput();
PublishedTxHash = publishedTxHash.ToString();
return(true);
}
private void FinishCreateTransactionAction()
{
try
{
if (SignTransaction)
{
var outputs = PendingOutputs.Select(po => new Transaction.Output(po.OutputAmount, po.BuildOutputScript().Script)).ToArray();
var shell = (ShellViewModel)_parentViewModel;
Func <string, Task> action = (passphrase) => SignTransactionWithPassphrase(passphrase, outputs, PublishTransaction);
var dialog = new PassphraseDialogViewModel(shell, "Enter passphrase to sign transaction", "Sign", action);
PostMessage(new OpenDialogMessage(dialog));
}
else
{
ShowUnsignedTransaction();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public override bool IncrementToken()
{
//System.out.println("\nS: incrToken inputSkipCount=" + inputSkipCount + " nextRead=" + nextRead + " nextWrite=" + nextWrite);
while (true)
{
// First play back any buffered future inputs/outputs
// w/o running parsing again:
while (inputSkipCount != 0)
{
// At each position, we first output the original
// token
// TODO: maybe just a PendingState class, holding
// both input & outputs?
PendingInput input = futureInputs[nextRead];
PendingOutputs outputs = futureOutputs[nextRead];
//System.out.println(" cycle nextRead=" + nextRead + " nextWrite=" + nextWrite + " inputSkipCount="+ inputSkipCount + " input.keepOrig=" + input.keepOrig + " input.consumed=" + input.consumed + " input.state=" + input.state);
if (!input.consumed && (input.keepOrig || !input.matched))
{
if (input.state != null)
{
// Return a previously saved token (because we
// had to lookahead):
RestoreState(input.state);
}
else
{
// Pass-through case: return token we just pulled
// but didn't capture:
if (Debugging.AssertsEnabled)
{
Debugging.Assert(inputSkipCount == 1, "inputSkipCount={0} nextRead={1}", inputSkipCount, nextRead);
}
}
input.Reset();
if (outputs.count > 0)
{
outputs.posIncr = 0;
}
else
{
nextRead = RollIncr(nextRead);
inputSkipCount--;
}
//System.out.println(" return token=" + termAtt.toString());
return(true);
}
else if (outputs.upto < outputs.count)
{
// Still have pending outputs to replay at this
// position
input.Reset();
int posIncr = outputs.posIncr;
CharsRef output = outputs.PullNext();
ClearAttributes();
termAtt.CopyBuffer(output.Chars, output.Offset, output.Length);
typeAtt.Type = TYPE_SYNONYM;
int endOffset = outputs.LastEndOffset;
if (endOffset == -1)
{
endOffset = input.endOffset;
}
offsetAtt.SetOffset(input.startOffset, endOffset);
posIncrAtt.PositionIncrement = posIncr;
posLenAtt.PositionLength = outputs.LastPosLength;
if (outputs.count == 0)
{
// Done with the buffered input and all outputs at
// this position
nextRead = RollIncr(nextRead);
inputSkipCount--;
}
//System.out.println(" return token=" + termAtt.toString());
return(true);
}
else
{
// Done with the buffered input and all outputs at
// this position
input.Reset();
nextRead = RollIncr(nextRead);
inputSkipCount--;
}
}
if (finished && nextRead == nextWrite)
{
// End case: if any output syns went beyond end of
// input stream, enumerate them now:
PendingOutputs outputs = futureOutputs[nextRead];
if (outputs.upto < outputs.count)
{
int posIncr = outputs.posIncr;
CharsRef output = outputs.PullNext();
futureInputs[nextRead].Reset();
if (outputs.count == 0)
{
nextWrite = nextRead = RollIncr(nextRead);
}
ClearAttributes();
// Keep offset from last input token:
offsetAtt.SetOffset(lastStartOffset, lastEndOffset);
termAtt.CopyBuffer(output.Chars, output.Offset, output.Length);
typeAtt.Type = TYPE_SYNONYM;
//System.out.println(" set posIncr=" + outputs.posIncr + " outputs=" + outputs);
posIncrAtt.PositionIncrement = posIncr;
//System.out.println(" return token=" + termAtt.toString());
return(true);
}
else
{
return(false);
}
}
// Find new synonym matches:
Parse();
}
}
/// <param name="input"> input tokenstream </param>
/// <param name="synonyms"> synonym map </param>
/// <param name="ignoreCase"> case-folds input for matching with <seealso cref="Character#toLowerCase(int)"/>.
/// Note, if you set this to true, its your responsibility to lowercase
/// the input entries when you create the <seealso cref="SynonymMap"/> </param>
public SynonymFilter(TokenStream input, SynonymMap synonyms, bool ignoreCase)
: base(input)
{
termAtt = AddAttribute<ICharTermAttribute>();
posIncrAtt = AddAttribute<IPositionIncrementAttribute>();
posLenAtt = AddAttribute<IPositionLengthAttribute>();
typeAtt = AddAttribute<ITypeAttribute>();
offsetAtt = AddAttribute<IOffsetAttribute>();
this.synonyms = synonyms;
this.ignoreCase = ignoreCase;
this.fst = synonyms.fst;
if (fst == null)
{
throw new System.ArgumentException("fst must be non-null");
}
this.fstReader = fst.BytesReader;
// Must be 1+ so that when roll buffer is at full
// lookahead we can distinguish this full buffer from
// the empty buffer:
rollBufferSize = 1 + synonyms.maxHorizontalContext;
futureInputs = new PendingInput[rollBufferSize];
futureOutputs = new PendingOutputs[rollBufferSize];
for (int pos = 0; pos < rollBufferSize; pos++)
{
futureInputs[pos] = new PendingInput();
futureOutputs[pos] = new PendingOutputs();
}
//System.out.println("FSTFilt maxH=" + synonyms.maxHorizontalContext);
scratchArc = new FST.Arc<BytesRef>();
}
private async Task RecalculatePendingTransaction()
{
if (PendingOutputs.Count == 0 || PendingOutputs.Any(x => !x.IsValid))
{
UnsetPendingTransaction();
return;
}
var walletClient = App.Current.Synchronizer?.WalletRpcClient;
var outputs = PendingOutputs.Select(po =>
{
var amount = po.OutputAmount;
var script = po.BuildOutputScript().Script;
return(new Transaction.Output(amount, Transaction.Output.LatestPkScriptVersion, script));
}).ToArray();
TransactionAuthor.InputSource inputSource = async targetAmount =>
{
var inputs = new Transaction.Input[0];
// TODO: don't hardcode confs
var funding = await walletClient.FundTransactionAsync(SelectedAccount.Account, targetAmount, 1);
if (funding.Item2 >= targetAmount)
{
inputs = funding.Item1.Select(o =>
Transaction.Input.CreateFromPrefix(new Transaction.OutPoint(o.TransactionHash, o.OutputIndex, o.Tree),
TransactionRules.MaxInputSequence)).ToArray();
}
return(Tuple.Create(funding.Item2, inputs));
};
TransactionAuthor.ChangeSource changeSource = async() =>
{
// Use cached change script if one has already been generated for this account.
var selectedAccount = SelectedAccount.Account;
OutputScript cachedScript;
if (_unusedChangeScripts.TryGetValue(selectedAccount, out cachedScript))
{
return(cachedScript);
}
var changeAddress = await walletClient.NextInternalAddressAsync(SelectedAccount.Account);
var changeScript = Address.Decode(changeAddress).BuildScript();
_unusedChangeScripts[selectedAccount] = changeScript;
return(changeScript);
};
try
{
var r = await TransactionAuthor.BuildUnsignedTransaction(outputs, TransactionFees.DefaultFeePerKb, inputSource, changeSource);
Amount totalAccountBalance;
using (var walletGuard = await App.Current.Synchronizer.WalletMutex.LockAsync())
{
totalAccountBalance = walletGuard.Instance.LookupAccountProperties(SelectedAccount.Account).TotalBalance;
}
SetPendingTransaction(totalAccountBalance, r.Item1, r.Item2, outputs.Sum(o => o.Amount));
}
catch (Exception ex)
{
UnsetPendingTransaction();
// Insufficient funds will need a nicer error displayed somehow. For now, hide it
// while disabling the UI to create the transaction. All other errors are unexpected.
if (!(ex is InsufficientFundsException))
{
throw;
}
}
}
