protected override void OnStart(string[] args)
{
string instanceId = new IdService().GetCurrentInstanceId();
string bucketName = ConfigurationManager.AppSettings["BucketName"];
int checkInputParamsInterval = Convert.ToInt32(ConfigurationManager.AppSettings["CheckInputParamsInterval"]);
var regionEndpoint = RegionEndpoint.GetBySystemName(ConfigurationManager.AppSettings["RegionEndpoint"]);
using (var storage = new AlgoStorage(bucketName, instanceId, regionEndpoint))
{
string algoName = null;
try
{
var result = storage.GetInputParams(checkInputParamsInterval);
storage.DeleteInputParams(result.FileName);
algoName = result.AlgoName;
var parameters = AlgoParams.Parse(result.Parameters);
var launcherRootDirectory = ConfigurationManager.AppSettings["LauncherRootDirectory"];
var algoRootDirectory = Path.Combine(launcherRootDirectory, algoName);
storage.Download(algoRootDirectory, algoName);
var activator = new AlgoActivator();
var algoResult = activator.Activate(algoRootDirectory, parameters);
storage.UploadSuccessResult(algoResult, algoName);
}
catch (Exception e)
{
storage.UploadErrorResult(e, algoName);
}
}
}
/// <summary>
/// Устанавливает свойства для параметра алгоритма
/// </summary>
/// <param name="entryPoint">Информация о методе</param>
/// <param name="instance">Экземпляр параметра</param>
/// <param name="parameters">Параметры для передачи в алгоритм</param>
private void MapInputParams(MethodInfo entryPoint, object instance, AlgoParams parameters)
{
if (parameters == null)
{
return;
}
var parameterInfo = entryPoint.GetParameters().FirstOrDefault();
var properties = parameterInfo.ParameterType.GetProperties();
foreach (var property in properties)
{
if (!property.CanWrite)
{
continue;
}
var parameterName = parameters.Keys.FirstOrDefault(p => p.ToLower() == property.Name.ToLower());
if (parameterName != null)
{
property.SetValue(instance, Convert.ChangeType(parameters[parameterName], property.PropertyType));
}
}
}
/// <summary>
/// Запускает алгоритм
/// </summary>
/// <param name="rootDirectory">Директория с файлами алгоритма</param>
/// <param name="parameters">Параметры</param>
/// <returns></returns>
public object Activate(string rootDirectory, AlgoParams parameters = null)
{
if (string.IsNullOrEmpty(rootDirectory))
{
throw new ArgumentNullException("rootDirectory");
}
var entryPoint = FindEntryPoint(rootDirectory);
return(CallEntryPointMethod(entryPoint, parameters));
}
/// <summary>
/// Вызывает точку входа в алгоритм
/// </summary>
/// <param name="entryPoint">Информация о методе</param>
/// <param name="parameters">Параметры алгоритма</param>
/// <returns></returns>
private object CallEntryPointMethod(MethodInfo entryPoint, AlgoParams parameters)
{
var assembly = entryPoint.Module.Assembly;
var typeName = assembly.GetName().Name + "." + EntryPointClassName;
var type = assembly.GetType(typeName);
var algoInstance = Activator.CreateInstance(type);
var algoInputInstance = CreateInputInstance(entryPoint);
MapInputParams(entryPoint, algoInputInstance, parameters);
return(entryPoint.Invoke(algoInstance, new[] { algoInputInstance }));
}
public static AlgoParams Parse(string input)
{
var segments = input.Split(new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
var result = new AlgoParams();
foreach (var segment in segments)
{
string key = Regex.Match(segment, @"^.+(?=\=)").Value;
string value = Regex.Match(segment, @"(?<=\=).+$").Value;
result.Add(key, value);
}
return(result);
}