public async Task Get()
{
using (var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync())
{
using (var writer = new NotificationCenterWebSocketWriter(webSocket, ServerStore.ServerDashboardNotifications, ServerStore.ContextPool,
ServerStore.ServerShutdown))
{
var isValidFor = GetDatabaseAccessValidationFunc();
try
{
using (var lowMemoryMonitor = new LowMemoryMonitor())
{
var machineResources = MachineResourcesNotificationSender.GetMachineResources(Server.MetricCacher, lowMemoryMonitor, Server.CpuUsageCalculator);
await writer.WriteToWebSocket(machineResources.ToJson());
}
using (var cts = CancellationTokenSource.CreateLinkedTokenSource(ServerStore.ServerShutdown))
{
var databasesInfo = new List <AbstractDashboardNotification>();
foreach (var item in DatabasesInfoRetriever.FetchDatabasesInfo(ServerStore, isValidFor, cts.Token))
{
databasesInfo.Add(item);
}
foreach (var info in databasesInfo)
{
await writer.WriteToWebSocket(info.ToJson());
}
}
}
catch (Exception e)
{
if (Logger.IsInfoEnabled)
{
Logger.Info("Failed to send the initial server dashboard data", e);
}
}
await writer.WriteNotifications(isValidFor);
}
}
}
public TrafficNotificationSender(int widgetId, ClusterDashboardPayloadType payloadType, DatabasesInfoRetriever databasesInfoRetriever, ConnectedWatcher watcher, CancellationToken shutdown) : base(widgetId, watcher, shutdown)
{
_payloadType = payloadType;
_databasesInfoRetriever = databasesInfoRetriever;
}
public OngoingTasksNotificationSender(int widgetId, DatabasesInfoRetriever databasesInfoRetriever, ConnectedWatcher watcher, CancellationToken shutdown) : base(widgetId, watcher, shutdown)
{
_databasesInfoRetriever = databasesInfoRetriever;
}
public ClusterDashboardNotifications(RavenServer server, CanAccessDatabase canAccessDatabase, CancellationToken shutdown)
{
_server = server;
_shutdown = shutdown;
_databasesInfoRetriever = new DatabasesInfoRetriever(server.ServerStore, canAccessDatabase);
}