/// <inhericdoc />
public void StartEarlyProcessing(IReadOnlyList <string> history)
{
// The context only changes when the user executes the corresponding command.
this._azContext?.UpdateContext();
lock (_userAcceptedAndSuggestion)
{
_userAcceptedAndSuggestion.Clear();
}
if (history.Count > 0)
{
if (_lastTwoMaskedCommands.Any())
{
_lastTwoMaskedCommands.Dequeue();
}
else
{
// This is the first time we populate our record. Push the second to last command in history to the
// queue. If there is only one command in history, push the command placeholder.
if (history.Count() > 1)
{
string secondToLastLine = history.TakeLast(AzPredictorConstants.CommandHistoryCountToProcess).First();
var secondToLastCommand = GetAstAndMaskedCommandLine(secondToLastLine);
_lastTwoMaskedCommands.Enqueue(secondToLastCommand.Item2);
_service.RecordHistory(secondToLastCommand.Item1);
}
else
{
_lastTwoMaskedCommands.Enqueue(AzPredictorConstants.CommandPlaceholder);
// We only extract parameter values from the command line in _service.RecordHistory.
// So we don't need to do that for a placeholder.
}
}
string lastLine = history.Last();
var lastCommand = GetAstAndMaskedCommandLine(lastLine);
_lastTwoMaskedCommands.Enqueue(lastCommand.Item2);
if ((lastCommand.Item2 != null) && !string.Equals(AzPredictorConstants.CommandPlaceholder, lastCommand.Item2, StringComparison.Ordinal))
{
_service.RecordHistory(lastCommand.Item1);
}
_telemetryClient.OnHistory(lastCommand.Item2);
_service.RequestPredictions(_lastTwoMaskedCommands);
}
ValueTuple <CommandAst, string> GetAstAndMaskedCommandLine(string commandLine)
{
var asts = Parser.ParseInput(commandLine, out _, out _);
var allNestedAsts = asts?.FindAll((ast) => ast is CommandAst, true);
var commandAst = allNestedAsts?.LastOrDefault() as CommandAst;
string maskedCommandLine = null;
var commandName = commandAst?.CommandElements?.FirstOrDefault().ToString();
if (_service.IsSupportedCommand(commandName))
{
maskedCommandLine = AzPredictor.MaskCommandLine(commandAst);
}
else
{
maskedCommandLine = AzPredictorConstants.CommandPlaceholder;
}
return(ValueTuple.Create(commandAst, maskedCommandLine));
}
}
/// <inhericdoc />
public void StartEarlyProcessing(IReadOnlyList <string> history)
{
// The context only changes when the user executes the corresponding command.
_azContext?.UpdateContext();
if (history.Count > 0)
{
// We try to find the commands to request predictions for.
// We should only have "start_of_snippet" when there are no enough Az commands for prediction.
// We then ignore that when there are new "start_of_snippet".
// This is the scenario.
// 1. New-AzResourceGroup -Name ****
// 2. $resourceName="Test"
// 3. $resourceLocation="westus2"
// 4. New-AzVM -Name $resourceName -Location $resourceLocation
//
// We'll replace 2 and 3 with "start_of_snippet" but if we request prediction using 2 and 3, that'll reset the
// workflow. We want to predict only by Az commands. That's to use commands 1 and 4.
bool isLastTwoCommandsChanged = false;
if (_lastTwoMaskedCommands.Count == 0)
{
// This is the first time we populate our record. Push the second to last command in history to the
// queue. If there is only one command in history, push the command placeholder.
if (history.Count() > 1)
{
string secondToLastLine = history.TakeLast(AzPredictorConstants.CommandHistoryCountToProcess).First();
var secondToLastCommand = GetAstAndMaskedCommandLine(secondToLastLine);
_lastTwoMaskedCommands.Enqueue(secondToLastCommand.Item2);
if (!string.Equals(AzPredictorConstants.CommandPlaceholder, secondToLastCommand.Item2, StringComparison.Ordinal))
{
_service.RecordHistory(secondToLastCommand.Item1);
}
}
else
{
_lastTwoMaskedCommands.Enqueue(AzPredictorConstants.CommandPlaceholder);
// We only extract parameter values from the command line in _service.RecordHistory.
// So we don't need to do that for a placeholder.
}
isLastTwoCommandsChanged = true;
}
string lastLine = history.Last();
var lastCommand = GetAstAndMaskedCommandLine(lastLine);
bool isLastCommandSupported = !string.Equals(AzPredictorConstants.CommandPlaceholder, lastCommand.Item2, StringComparison.Ordinal);
if (isLastCommandSupported)
{
if (_lastTwoMaskedCommands.Count == 2)
{
// There are already two commands, dequeue the oldest one.
_lastTwoMaskedCommands.Dequeue();
}
_lastTwoMaskedCommands.Enqueue(lastCommand.Item2);
isLastTwoCommandsChanged = true;
_service.RecordHistory(lastCommand.Item1);
}
else if (_lastTwoMaskedCommands.Count == 1)
{
isLastTwoCommandsChanged = true;
var existingInQueue = _lastTwoMaskedCommands.Dequeue();
_lastTwoMaskedCommands.Enqueue(AzPredictorConstants.CommandPlaceholder);
_lastTwoMaskedCommands.Enqueue(existingInQueue);
}
_telemetryClient.OnHistory(new HistoryTelemetryData(lastCommand.Item2));
if (isLastTwoCommandsChanged)
{
_service.RequestPredictions(_lastTwoMaskedCommands);
}
}
ValueTuple <CommandAst, string> GetAstAndMaskedCommandLine(string commandLine)
{
var asts = Parser.ParseInput(commandLine, out _, out _);
var allNestedAsts = asts?.FindAll((ast) => ast is CommandAst, true);
var commandAst = allNestedAsts?.LastOrDefault() as CommandAst;
string maskedCommandLine = AzPredictorConstants.CommandPlaceholder;
var commandName = commandAst?.CommandElements?.FirstOrDefault().ToString();
if (_service.IsSupportedCommand(commandName))
{
maskedCommandLine = CommandLineUtilities.MaskCommandLine(commandAst);
}
return(ValueTuple.Create(commandAst, maskedCommandLine));
}
}