private async Task BuildBotAsync(CancellationToken cancellationToken)
{
// Get the latest bot configuration
var getBotRequest = new GetBotRequest
{
Name = this.LexBotName,
VersionOrAlias = "$LATEST",
};
var getBotResponse = await this.LexClient.GetBotAsync(getBotRequest, cancellationToken).ConfigureAwait(false);
// Call PutBot with the latest GetBot response
var putBotBuildRequest = JObject.FromObject(getBotResponse).ToObject <PutBotRequest>();
putBotBuildRequest.CreateVersion = true;
putBotBuildRequest.ProcessBehavior = ProcessBehavior.BUILD;
// Workaround for error received from Lex client
putBotBuildRequest.AbortStatement.Messages.First().GroupNumber = 1;
putBotBuildRequest.ClarificationPrompt.Messages.First().GroupNumber = 1;
Logger.LogTrace($"Building bot '{this.LexBotName}'.");
await this.LexClient.PutBotAsync(putBotBuildRequest, cancellationToken).ConfigureAwait(false);
// Poll for until bot is ready
await this.PollBotReadyStatusAsync(cancellationToken).ConfigureAwait(false);
}
private async Task PollBotReadyStatusAsync(CancellationToken cancellationToken)
{
var getBotRequest = new GetBotRequest
{
Name = this.LexBotName,
VersionOrAlias = "$LATEST",
};
// Wait for Ready status
var count = 0;
while (true)
{
var getBotResponse = await this.LexClient.GetBotAsync(getBotRequest, cancellationToken).ConfigureAwait(false);
if (getBotResponse.Status == Status.READY)
{
break;
}
// After importing an unchanged bot, a bot status will be "NOT_BUILT"
if (getBotResponse.Status == Status.NOT_BUILT)
{
break;
}
if (getBotResponse.Status == Status.FAILED)
{
var exceptionMessage = string.Join(Environment.NewLine, getBotResponse.FailureReason);
throw new InvalidOperationException(exceptionMessage);
}
if (getBotResponse.Status != Status.BUILDING)
{
throw new InvalidOperationException(
$"Expected bot to have '{Status.BUILDING}', instead found '{getBotResponse.Status}'.");
}
// If building, delay with linear backoff
var delay = TimeSpan.FromSeconds(GetBotDelaySeconds * ++count);
await Task.Delay(delay, cancellationToken).ConfigureAwait(false);
}
}
public Task <GetBotResponse> GetBotAsync(GetBotRequest request, CancellationToken cancellationToken)
{
return(RetryAsync(this.AmazonLexModelClient.GetBotAsync, request, cancellationToken));
}
Task <GetBotResponse> ILexBotGeneratorDependencyProvider.GetBotAsync(GetBotRequest request) => _lexBuildingClient.GetBotAsync(request);
public async Task <GetBotResponse> GetBotAsync(GetBotRequest request, CancellationToken cancellationToken)
{
await this.ProcessRequestAsync(request).ConfigureAwait(false);
return(this.Get <GetBotResponse>());
}
