private void TimerCallback(object state)
{
if (_processing)
{
return;
}
_processing = true;
try
{
var statusData = OnFetchStatus?.Invoke();
if (statusData == null)
{
_processing = false;
return;
}
Core.Log.LibDebug("Sending status data to the diagnostic queue.");
_queueClient = _queueClient ?? Core.Services.GetQueueClient(_queueName);
_queueClient.SendAsync(statusData).WaitAndResults();
}
catch (Exception ex)
{
Core.Log.Write(ex);
}
_processing = false;
}
/// <inheritdoc />
/// <summary>
/// Action to execute when the trigger occurs
/// </summary>
protected override void OnAction()
{
var status = OnFetchStatus?.Invoke();
try
{
if (status == null)
{
return;
}
var now = Core.Now;
var filename = FileNameFormat
.Replace("{yyyy}", now.ToString("yyyy"))
.Replace("{MM}", now.ToString("MM"))
.Replace("{dd}", now.ToString("dd"))
.Replace("{HH}", now.ToString("HH"))
.Replace("{mm}", now.ToString("mm"));
var filePath = SPath.Combine(AppContext.BaseDirectory, Path, filename);
var folder = SPath.GetDirectoryName(filePath);
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
Serializer.SerializeToFile(status, filePath);
}
catch (Exception ex)
{
Core.Log.Write(ex);
}
}
private void TimerCallback(object state)
{
if (!_enabled)
{
return;
}
if (Interlocked.CompareExchange(ref _processing, 1, 0) == 1)
{
return;
}
try
{
var statusData = OnFetchStatus?.Invoke();
if (statusData is null)
{
Interlocked.Exchange(ref _processing, 0);
return;
}
Core.Log.LibDebug("Sending status data to the diagnostic queue.");
if (_queueClient is null)
{
_queueClient = Core.Services.GetQueueRawClient(_queueName, true);
Core.Status.AttachChild(_queueClient, this);
}
_queueClient.SendAsync(statusData).WaitAndResults();
}
catch (UriFormatException fException)
{
Core.Log.Warning($"Disabling {nameof(MessagingStatusTransport)}. Reason: {fException.Message}");
_enabled = false;
_timer.Dispose();
}
catch (Exception ex)
{
Core.Log.Write(ex);
}
Interlocked.Exchange(ref _processing, 0);
}
public HttpStatusTransport(int port = 80)
{
var htmlPage = this.GetAssembly().GetResourceString("Status.htm");
var xmlSerializer = new XmlTextSerializer();
var jsonSerializer = new JsonTextSerializer()
{
UseCamelCase = true
};
_httpServer = new SimpleHttpServer();
_httpServer.AddGetHandler("/", ctx =>
{
ctx.Response.Write(htmlPage);
});
_httpServer.AddGetHandler("/xml", ctx =>
{
if (OnFetchStatus == null)
{
return;
}
var statuses = OnFetchStatus.Invoke();
ctx.Response.ContentType = SerializerMimeTypes.Xml;
xmlSerializer.Serialize(statuses, ctx.Response.OutputStream);
});
_httpServer.AddGetHandler("/json", ctx =>
{
if (OnFetchStatus == null)
{
return;
}
var statuses = OnFetchStatus.Invoke();
ctx.Response.ContentType = SerializerMimeTypes.Json;
jsonSerializer.Serialize(statuses, ctx.Response.OutputStream);
});
_httpServer.AddGetHandler("/gccollect", ctx =>
{
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
GC.Collect();
GC.WaitForPendingFinalizers();
ctx.Response.ContentType = SerializerMimeTypes.Json;
ctx.Response.Write("true");
});
_httpServer.AddGetHandler("/discovery", ctx =>
{
var services = DiscoveryService.GetRegisteredServices();
var statusServices = services.Where(s => s.Category == DiscoveryService.FrameworkCategory && s.Name == "STATUS.HTTP").ToArray();
ctx.Response.WriteLine("<html><head><title>Discovered Status Services</title></head><body style='padding:30px;'><h1 style='text-align:center;'>Discovered status services</h1>");
foreach (var g in statusServices.GroupBy(s => new { s.EnvironmentName, s.MachineName }).OrderBy(s => s.Key.EnvironmentName))
{
ctx.Response.WriteLine($"<h3>Environment: {g.Key.EnvironmentName} - Machine: {g.Key.MachineName}</h3>");
ctx.Response.WriteLine("<ul>");
foreach (var ss in g)
{
var dct = (Dictionary <string, object>)ss.Data.GetValue();
ctx.Response.WriteLine("<li style='list-style-type: none;'>");
foreach (var ssAddress in ss.Addresses)
{
ctx.Response.WriteLine($"<a href='http://{ssAddress.ToString()}:{dct["Port"]}/' target='_blank' style='text-decoration: none;color: blue;'>{ssAddress.ToString()}</a> /");
}
ctx.Response.WriteLine($" {ss.ApplicationName}</li>");
}
ctx.Response.WriteLine("</ul>");
}
ctx.Response.WriteLine("</body></html>");
});
StartListening(port).WaitAsync();
Core.Status.DeAttachObject(_httpServer);
}
public StatusItemCollection GetStatus() => OnFetchStatus?.Invoke();
