public Server(IPAddress serverIp)
{
Workers = new List <WorkerInfo>();
Clients = new List <Uri>();
TaskService = new ServerTaskService(this);
ClientRegistrationService = new ClientRegistrationService(this);
WorkerRegistrationService = new WorkerRegistrationService(this);
ConnectionControl = new ServerConnectionControl(this);
TaskLibraryManager = new TaskLibraryManager();
TaskLibraryManager.Load();
bool hostCreated = false;
while (!hostCreated)
{
try
{
ServerUri = RemoteConnection.CreateUri(serverIp, Port++);
CheckConnectionHost = RemoteConnection.CreateHost(UriTemplates.CreateCheckConnectionUri(ServerUri), typeof(ICheckConnection), typeof(CheckConnection));
hostCreated = true;
}
catch
{
}
}
TaskServiceHost = RemoteConnection.CreateHost(UriTemplates.CreateTasksUri(ServerUri), typeof(IServerTaskService), TaskService);
ClientRegistrationHost = RemoteConnection.CreateHost(UriTemplates.CreateClientRegistrationUri(ServerUri), typeof(IClientRegistrationService), ClientRegistrationService);
WorkerRegistrationHost = RemoteConnection.CreateHost(UriTemplates.CreateWorkerRegistrationUri(ServerUri), typeof(IWorkerRegistrationService), WorkerRegistrationService);
TaskLibraryHost = RemoteConnection.CreateHost(UriTemplates.CreateLibrariesUri(ServerUri), typeof(IDistributedTaskLibraryService), typeof(DistributedTaskLibraryService));
CheckConnectionHost = RemoteConnection.CreateHost(UriTemplates.CreateCheckConnectionUri(ServerUri), typeof(ICheckConnection), typeof(CheckConnection));
CheckConnectionHost.Open();
WorkerRegistrationHost.Open();
TaskLibraryHost.Open();
}
private async Task <DistributedResource> ExecuteAsync(Uri clientUri, Uri workerUri, DistributedResource resource, int taskId)
{
return(await Task.Run(() =>
{
DistributedResource result = null;
try
{
var service = RemoteConnection.CreateProxy <IWorkerTaskService>(UriTemplates.CreateTasksUri(workerUri));
result = service.ExecuteTask(taskId, resource);
}
catch
{
result = null;
}
result = Execute(clientUri, taskId, resource);
return result;
}));
}
public ClientTask CreateTask(String typename, List <string> filenames)
{
if (Disposed)
{
throw new NoServerConnectionException();
}
else
{
var libraries = new DistributedTaskLibrary(LocalUri, filenames, typename);
var service = RemoteConnection.CreateProxy <IServerTaskService>(UriTemplates.CreateTasksUri(ServerUri));
int taskid = 0;
try
{
taskid = service.CreateTask(libraries);
}
catch
{
throw new ServerUnavailableException();
}
return(new ClientTask(taskid, ServerUri, LocalUri));
}
}
public void Connect(Uri workerUri)
{
var workerInfo = new WorkerInfo(workerUri);
var service = RemoteConnection.CreateProxy <IWorkerTaskService>(UriTemplates.CreateTasksUri(workerUri));
foreach (Uri client in Server.Clients)
{
workerInfo.Connections.Add(new ConnectionInfo(client, service.CheckConnection(client)));
}
for (int i = 0; i < Server.TaskLibraryManager.Tasks.Count; i++)
{
workerInfo.Tasks.Add(i, service.CreateTask(Server.TaskLibraryManager.Tasks[i].CreateDistributedTaskLibrary(Server.ServerUri)));
}
lock (Server.Workers)
{
if (Server.Workers.Count == 0)
{
Server.OpenClientConnection();
}
Server.Workers.Add(workerInfo);
}
Server.ConnectionControl.AddWorkerConnection(workerUri);
Logging.WriteLog("Worker on " + workerUri + " connected");
}
public WorkerServerConnection(IPAddress localIp, IPAddress serverIp, int port) : base(localIp, serverIp, port)
{
Logging.WriteLog("Connecting to server on " + ServerUri);
PerformanceService = new WorkerPerformanceService();
PerformanceServiceHost = RemoteConnection.CreateHost(UriTemplates.CreatePerformanceUri(LocalUri), typeof(IWorkerPerformanceService), PerformanceService);
PerformanceServiceHost.Open();
TasksService = new WorkerTaskService(LocalUri);
TasksServiceHost = RemoteConnection.CreateHost(UriTemplates.CreateTasksUri(LocalUri), typeof(IWorkerTaskService), TasksService);
TasksServiceHost.Open();
var registation = RemoteConnection.CreateProxy <IWorkerRegistrationService>(UriTemplates.CreateWorkerRegistrationUri(ServerUri));
try
{
registation.Connect(LocalUri);
}
catch (Exception e)
{
TasksServiceHost.Close();
PerformanceServiceHost.Close();
Dispose();
throw new NoServerConnectionException();
}
ConnectionControl = new ConnectionControl(this, ServerUri);
}
public ClientTask(int id, Uri server, Uri client)
{
Id = id;
Client = client;
Server = UriTemplates.CreateTasksUri(server);
}
public void Connect(Uri localuri)
{
lock (Server.Clients)
{
Server.Clients.Add(localuri);
}
lock (Server.Workers)
{
foreach (WorkerInfo workerinfo in Server.Workers)
{
if (!workerinfo.Connections.Select <ConnectionInfo, Uri>(connection => connection.ClientUri).Contains(localuri))
{
var service = RemoteConnection.CreateProxy <IWorkerTaskService>(UriTemplates.CreateTasksUri(workerinfo.WorkerUri));
workerinfo.Connections.Add(new ConnectionInfo(localuri, service.CheckConnection(localuri)));
}
}
}
Server.ConnectionControl.AddClientConnection(localuri);
Logging.WriteLog("Client on " + localuri + " connected");
}
public int CreateTask(DistributedTaskLibrary libraries)
{
Logging.WriteLog("Request for creating new library was received");
int taskId = Server.TaskLibraryManager.CreateTask(libraries);
DistributedTaskLibrary distributedLibrary = Server.TaskLibraryManager.Tasks[taskId].CreateDistributedTaskLibrary(Server.ServerUri);
List <int> list = new List <int>();
lock (Server.Workers)
{
foreach (WorkerInfo workerInfo in Server.Workers)
{
if (!workerInfo.Tasks.Keys.ToList().Contains(taskId))
{
var service = RemoteConnection.CreateProxy <IWorkerTaskService>(UriTemplates.CreateTasksUri(workerInfo.WorkerUri));
workerInfo.Tasks.Add(taskId, service.CreateTask(distributedLibrary));
}
}
}
return(taskId);
}
public DistributedResource Execute(Uri clientUri, int taskId, DistributedResource resource)
{
Logging.WriteLog("Request for executing task on single resource was received");
DistributedResource result = null;
int trycount = TryCount;
do
{
WorkerInfo workerInfo = null;
lock (Server.Workers)
{
List <int> performance = Server.Workers.Select <WorkerInfo, int>(worker => worker.GetPerformance(clientUri)).ToList();
if (performance.Count != 0)
{
workerInfo = Server.Workers[performance.FindIndex(perform => perform == performance.Max())];
var service = RemoteConnection.CreateProxy <IWorkerTaskService>(UriTemplates.CreateTasksUri(workerInfo.WorkerUri));
try
{
result = service.ExecuteTask(workerInfo.Tasks[taskId], resource);
trycount--;
}
catch
{ }
}
}
}while (result == null && Server.Workers.Count != 0 && trycount > 0);
return(result);
}
