public StrategyRunnerBackgroundService(IServerMonitor serverMonitor, IStrategyRunnerActionBlock strategyRunnerActionBlock, ILoggerFactory loggerFactory)
{
this.serverMonitor = serverMonitor;
this.strategyRunnerActionBlock = strategyRunnerActionBlock;
logger = loggerFactory.CreateLogger <StrategyRunnerBackgroundService>();
}
public async Task Invoke(HttpContext context, IStrategyRunner strategyRunner, IStrategyRunnerActionBlock strategyRunnerActionBlock)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (strategyRunner == null)
{
throw new ArgumentNullException(nameof(strategyRunner));
}
if (strategyRunnerActionBlock == null)
{
throw new ArgumentNullException(nameof(strategyRunnerActionBlock));
}
try
{
var json = context.Request.Form["strategy"];
var strategy = JsonConvert.DeserializeObject <Strategy>(json);
var downloadsPath = Path.Combine(Directory.GetCurrentDirectory(), "downloads", Guid.NewGuid().ToString());
if (!Directory.Exists(downloadsPath))
{
Directory.CreateDirectory(downloadsPath);
}
if (context.Request.HasFormContentType)
{
var form = context.Request.Form;
var downloads = from f
in form.Files
select Download(f, downloadsPath);
await Task.WhenAll(downloads.ToArray()).ConfigureAwait(false);
}
var strategyRunnerActionBlockInput = new StrategyRunnerActionBlockInput
{
StrategyRunner = strategyRunner,
Strategy = strategy,
DownloadsPath = downloadsPath
};
await strategyRunnerActionBlock.RunStrategyAsync(strategyRunnerActionBlockInput).ConfigureAwait(false);
await context.Response.WriteAsync(json).ConfigureAwait(false);
}
catch (Exception ex)
{
var response = context.Response;
response.ContentType = "application/json";
response.StatusCode = (int)HttpStatusCode.InternalServerError;
await response.WriteAsync(JsonConvert.SerializeObject(ex)).ConfigureAwait(false);
}
}
