private static bool IsProcessed(CalculationComponent component, string[] journeyBreadcrumbs)
{
if (journeyBreadcrumbs == null)
{
return(false);
}
return(Array.IndexOf(journeyBreadcrumbs, JourneyUtils.ToBreadCrumb(component)) >= 0);
}
public async Task Run(
[QueueTrigger("munt-component-queue", Connection = "AzureWebJobsStorage")]
string message,
[Queue("munt-journey-queue"), StorageAccount("AzureWebJobsStorage")]
ICollector <string> journeyQueue,
ILogger log)
{
var componentMessage = Deserialize(message);
var componentType = componentMessage.ComponentType;
var componentVersion = componentMessage.ComponentVersion;
log.LogInformation(
$"Component {componentType} received context {componentMessage.MuntContext} and {componentMessage.ComponentContext}");
var nugetComponentVersions = await this.nugetServerService.GetPackageVersions(componentType);
if (!nugetComponentVersions.Any())
{
throw new ArgumentException($"Component {componentType} does not have any versions on NuGet");
}
var nugetComponent =
nugetComponentVersions.FirstOrDefault(c => c.Version.Equals(new Version(componentVersion)));
if (nugetComponent == null)
{
throw new ArgumentException(
$"Component {componentType} with version {componentVersion} does not exist on NuGet");
}
var packageName = $"{componentType}.{componentVersion}.nupkg";
var packageLocation =
Path.GetFullPath(packageName); // Results to bin/Debug/netcoreapp3.1/package.version.nupkg
if (IsRunningOnAzure())
{
packageLocation =
Path.Combine(Path.GetTempPath(),
packageName); // Results to the TEMP directory of the Azure Functions (App Service) on Azure
}
// Download from NuGet server if file with specific version does not exist
if (!File.Exists(packageLocation))
{
var package = await this.nugetServerService.DownloadPackage(componentType, componentVersion);
await File.WriteAllBytesAsync(packageLocation, package);
}
var pathToPackage =
Path.GetDirectoryName(
packageLocation); // Returns the root execution directory, where all nupkg's are downloaded
// Scanning for nupkg's also extracts all available packages
var pluginScanResults = await this.pluginLoader.FindPlugins <IMuntCalculationComponent>(pathToPackage);
// We're looking for the nupkg with the correct name and version
var pluginScanResult = pluginScanResults.FirstOrDefault(p =>
p.AssemblyPath.Contains(componentType) && p.AssemblyPath.Contains(componentVersion));
if (pluginScanResult == null)
{
throw new NotSupportedException(
$"Could not find extracted plugin with name {componentType} and version {componentVersion}");
}
var plugin = await this.pluginLoader.LoadPlugin <IMuntCalculationComponent>(pluginScanResult,
configure : (ctx) =>
{
// Share the IConfigurationService
ctx.AddHostService <IConfigurationService>(this.configurationService);
});
var componentBreadCrumb = JourneyUtils.ToBreadCrumb(componentType, componentVersion);
var results = await plugin.Calculate(componentMessage.MuntContext, componentMessage.ComponentContext);
var journey = componentMessage.Journey;
var journeyMessage = new JourneyMessage
{
AmountForCalculationArea = componentMessage.ComponentContext.AmountForCalculationArea,
Context = componentMessage.MuntContext,
Journey = AddBreadCrumb(journey, componentBreadCrumb),
CalculationResults = AddResults(componentMessage.ComponentContext.CalculationResults, results)
};
var newMessage = JsonConvert.SerializeObject(journeyMessage);
log.LogInformation($"Component {componentBreadCrumb} created new context {newMessage}");
journeyQueue.Add(newMessage);
}
