private Core.Models.Execution ApplyExecutionContext(Core.Models.ExecutionContext execContext, Core.Models.Execution execution)
{
execution.LastUpdatedDateTimeUtc = DateTime.UtcNow;
execution.PercentComplete = execContext.PercentComplete;
if (execContext.ProvidedOutputObjects != null)
{
execution.ProvidedInputObjects.AddRange(
execContext.ProvidedInputObjects.Except(execution.ProvidedInputObjects));
}
if (execContext.ProvidedOutputObjects != null)
{
execution.ProvidedOutputObjects.AddRange(
execContext.ProvidedOutputObjects.Except(execution.ProvidedOutputObjects));
}
execution.ResultData = (execContext.ResultData ?? execution.ResultData);
execution.Status = execContext.Status;
execution.StatusMessage = execContext.StatusMessage;
execution.ExecutionTimeoutDateTimeUtc = execContext.ExecutionTimeoutDateTimeUtc.GetValueOrDefault();
if (execContext.ValidationErrors != null)
{
execution.ValidationErrors.AddRange(execContext.ValidationErrors);
}
return(execution);
}
public async Task RouteRequestAsync_ServiceWithGivenExecutionModelName_ShouldRouteSuccessfully()
{
const string modelName = "expected-model/v1";
var mockProcessor = new Mock<IExecutionProcessor>();
var mockServiceProvider = new Mock<IServiceProvider>();
var processorFactory = new NamedServiceFactory<IExecutionProcessor>(
new Dictionary<string, Func<IServiceProvider, IExecutionProcessor>>
{
[modelName] = sp => mockProcessor.Object
});
var execRequest = new ExecutionRequest
{
ExecutionId = Guid.NewGuid().ToString(),
ExecutionModelName = modelName
};
var execContext = new Core.Models.ExecutionContext
{
ExecutionId = execRequest.ExecutionId,
Status = ExecutionStatus.Succeeded
};
mockProcessor.Setup(ep => ep.ProcessRequestAsync(execRequest, CancellationToken.None))
.Returns(Task.FromResult(execContext));
var execRequestRouter = new ExecutionRequestRouter(processorFactory, mockServiceProvider.Object);
var actualExecContext = await execRequestRouter.RouteRequestAsync(execRequest, CancellationToken.None);
actualExecContext.Should().NotBeNull();
actualExecContext.Should().Be(execContext);
}
private async Task <Core.Models.ExecutionContext> ExecuteAsync <T>(Core.Models.ExecutionContext execContext, T httpExecRequest,
HttpExtensionSettings httpSettings)
{
logger.LogInformation($"Posting execution request [{execContext.ExecutionId}] to [{httpSettings.ExecutionUrl}]...");
// POST the request to the extension...
var httpExecResponse = await this.jsonHttpClient.PostAsync <HttpExecutionResponse>(
httpSettings.ExecutionUrl, httpExecRequest);
// Gather all the appropriate information returned from the extension...
execContext.ResultData = httpExecResponse.Content?.ResponseData;
execContext.ProvidedOutputObjects = httpExecResponse.Content?.ProvidedOutputObjects;
execContext.ValidationErrors = httpExecResponse.Content?.ValidationErrors?.Select(ve => ve.ToCoreModel()).ToList();
switch (httpExecResponse.StatusCode)
{
// If the extension responded with a [202 Accepted], the execution is long-running. Mark the execution as [Processing].
// The extension is expected to call back to the execution API with status updates.
case HttpStatusCode.Accepted:
logger.LogInformation($"Execution [{execContext.ExecutionId}] is long-running.");
execContext.UpdateStatus(ExecutionStatus.Processing);
break;
// If the extension responded with a [200 OK], execution was succesful. Mark the execution as such.
case HttpStatusCode.OK:
logger.LogInformation($"Execution [{execContext.ExecutionId}] complete.");
execContext.UpdateStatus(ExecutionStatus.Succeeded);
break;
// If the extension responded with a [400 Bad Request], either we called the extension wrong OR the client
// called the extension wrong. The extension may have provided further information as [validationErrors].
// If [validationErrors] were provided, mark the execution as [ValidationFailed].
// If [validationErrors] were not provided, something else went wrong, so mark the execution as [Failed].
case HttpStatusCode.BadRequest:
logger.LogWarning($"Execution request [{execContext.ExecutionId}] is invalid.");
ProcessBadRequest(execContext, httpExecResponse.Content);
break;
// The extension responded with a status code that we didn't expect. Throw an exception...
default:
throw new HttpRequestException($"Extension returned an unexpected status code: [{httpExecResponse.StatusCode}].");
}
return(execContext);
}
private Core.Models.ExecutionContext ProcessBadRequest(Core.Models.ExecutionContext execContext,
HttpExecutionResponse httpExecResponse)
{
execContext.ValidationErrors = httpExecResponse?.ValidationErrors.Select(e => e.ToCoreModel()).ToList();
if (execContext.ValidationErrors.Any())
{
return(execContext.UpdateStatus(ExecutionStatus.ValidationFailed));
}
else
{
throw new HttpRequestException($"Extension returned an unexpected status code: [{HttpStatusCode.BadRequest}].");
}
}
private async Task <Core.Models.ExecutionContext> ValidateAsync <T>(Core.Models.ExecutionContext execContext, T httpExecRequest,
HttpExtensionSettings httpSettings)
{
logger.LogInformation($"Posting execution validation request [{execContext.ExecutionId}] to [{httpSettings.ValidationUrl}]...");
// POST the validation request to the extension...
var httpExecResponse = await this.jsonHttpClient.PostAsync <HttpExecutionResponse>(
httpSettings.ValidationUrl, httpExecRequest);
// Grab any validation errors...
execContext.ValidationErrors = httpExecResponse.Content?.ValidationErrors?.Select(ve => ve.ToCoreModel()).ToList();
switch (httpExecResponse.StatusCode)
{
// If the extension responded with a [200 OK], mark the execution [ValidationSucceeded].
case HttpStatusCode.OK:
logger.LogInformation($"Execution request [{execContext.ExecutionId}] is valid.");
execContext.UpdateStatus(ExecutionStatus.ValidationSucceeded);
break;
// If the extension responded with a [400 Bad Request], either we called the extension wrong OR the client
// called the extension wrong. The extension may have provided further information as [validationErrors].
// If [validationErrors] were provided, mark the execution as [ValidationFailed].
// If [validationErrors] were not provided, something else went wrong, so mark the execution as [Failed].
case HttpStatusCode.BadRequest:
logger.LogInformation($"Execution request [{execContext.ExecutionId}] is invalid.");
ProcessBadRequest(execContext, httpExecResponse.Content);
break;
// The extension responded with a status code that we didn't expect. Throw an exception...
default:
throw new HttpRequestException($"Extension returned an unexpected status code: [{httpExecResponse.StatusCode}].");
}
return(execContext);
}