public WebhookPosterTest()
{
ForwarderConfiguration = new ForwarderConfiguration();
}
public HubEventUnpackerTest()
{
Configuration = new ForwarderConfiguration();
}
private static async Task MainAsync()
{
var instrumentationKey = Environment.GetEnvironmentVariable("Payments.InstrumentationKey", EnvironmentVariableTarget.Process);
var license = Environment.GetEnvironmentVariable("NServiceBus.License", EnvironmentVariableTarget.Process);
var ordersConnectionString = Environment.GetEnvironmentVariable("Orders.ConnectionString", EnvironmentVariableTarget.Process);
var paymentsConnectionString = Environment.GetEnvironmentVariable("Payments.ConnectionString", EnvironmentVariableTarget.Process);
System.Net.ServicePointManager.DefaultConnectionLimit = Int32.MaxValue;
TelemetryConfiguration.Active.InstrumentationKey = instrumentationKey;
var telemetryClient = new TelemetryClient();
var defaultFactory = LogManager.Use <DefaultFactory>();
defaultFactory.Level(LogLevel.Info);
var endpointConfig = new EndpointConfiguration("Payments");
if (!string.IsNullOrEmpty(license))
{
endpointConfig.License(license);
}
endpointConfig.UsePersistence <InMemoryPersistence>();
endpointConfig.SendFailedMessagesTo("error");
var transport = endpointConfig.UseTransport <AzureServiceBusTransport>();
transport.ConnectionString(paymentsConnectionString);
var topology = transport.UseForwardingTopology();
var factories = transport.MessagingFactories();
var receivers = transport.MessageReceivers();
var perReceiverConcurrency = 10;
var numberOfReceivers = 2; // Premium messaging has 2 partitions
var globalConcurrency = numberOfReceivers * perReceiverConcurrency;
endpointConfig.LimitMessageProcessingConcurrencyTo(globalConcurrency);
factories.NumberOfMessagingFactoriesPerNamespace(numberOfReceivers * 2); //Bus receiver, bus sender
transport.NumberOfClientsPerEntity(numberOfReceivers);
factories.BatchFlushInterval(TimeSpan.FromMilliseconds(100));
receivers.PrefetchCount(1000); // The more we prefetch, the better the throughput will be, needs to be balanced though as you can only pull so many messages per batch
topology.NumberOfEntitiesInBundle(1); // Only use 1 bundle topic, there is no benefit to using more and Particular are going to remove this support moving forward
transport.Transactions(TransportTransactionMode.ReceiveOnly); // Use peek lock, vastly quicker than
transport.BrokeredMessageBodyType(SupportedBrokeredMessageBodyTypes.Stream); // Need to use this for non-NSB integrations - will be what Particular use moving forward too
transport.TransportType(TransportType.Amqp); // Use this rather than netmessaging, allows more connections to the namespace and is an open standard
// See here for a better example of this that handles ungraceful shutdowns - https://github.com/Particular/docs.particular.net/blob/master/samples/application-insights/Metrics_1/Endpoint/ApplicationInsightsFeature.cs
var metricOptions = endpointConfig.EnableMetrics();
metricOptions.RegisterObservers(context =>
{
foreach (var duration in context.Durations)
{
duration.Register(observer: durationLength => telemetryClient.TrackMetric(new MetricTelemetry(duration.Name, durationLength.TotalMilliseconds)));
}
foreach (var signal in context.Signals)
{
signal.Register(observer: () => telemetryClient.TrackEvent(new EventTelemetry(signal.Name)));
}
});
var endpoint = await Endpoint.Start(endpointConfig).ConfigureAwait(false);
var forwarderConfig = new ForwarderConfiguration(
new ForwarderSourceConfiguration(500, () => CreateMessageReceiver(ordersConnectionString, "Payments")),
new ForwarderDestinationConfiguration("Payments", () => CreateMessageForwarder(paymentsConnectionString, "Payments")))
.UsingLogger(new Logger(LogManager.GetLogger <Forwarder>()))
.WithConcurrencyOf(3);
var forwarder = new Forwarder(forwarderConfig);
await CreateSubscriptionEntitiesIfRequired(ordersConnectionString, "Returns", "Payments");
forwarder.Start();
}
private static List <ForwarderConfiguration> GetConfiguration(IBackgroundLogger errorLogger)
{
List <ForwarderConfiguration> configs = new List <ForwarderConfiguration>();
try {
// Read the XML configuration file.
XDocument doc;
using (FileStream fs = new FileStream(Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "configuration.xml"), FileMode.Open, FileAccess.Read)) {
doc = XDocument.Load(fs);
}
XElement root = doc.Root;
if (root.Name.LocalName == "TcpForwarderConfiguration")
{
foreach (XNode node in root.Nodes())
{
try {
if (node is XElement && ((XElement)node).Name.LocalName == "Forwarder")
{
// Found an entry.
XElement el = (XElement)node;
XAttribute remoteHost = el.Attribute("remoteHost");
XAttribute remotePort = el.Attribute("remotePort");
XAttribute localPort = el.Attribute("localPort");
if (remoteHost == null || remotePort == null || localPort == null)
{
throw new ArgumentException("One of the required attributes (maxConcurrentConnections, remoteHost, remotePort, localPort) is missing.");
}
int maxConcurrentConnections;
XAttribute maxConcurrentConnectionsAttr = el.Attribute("maxConcurrentConnections");
if (maxConcurrentConnectionsAttr != null)
{
maxConcurrentConnections = int.Parse(maxConcurrentConnectionsAttr.Value, CultureInfo.InvariantCulture);
}
else
{
maxConcurrentConnections = 10000;
}
string remoteSslHostname = null;
XAttribute at = el.Attribute("remoteSslHostname");
if (at != null)
{
remoteSslHostname = at.Value;
}
X509Certificate2 cert = null;
at = el.Attribute("localSslCertFingerprint");
if (at != null)
{
cert = TcpConnectionForwarderUtils.GetCurrentUserOrLocalMachineCertificateFromFingerprint(at.Value);
if (cert == null)
{
throw new Exception("The certificate with fingerprint \"" + at.Value + "\" was not found.");
}
// check if we have enough privileges to get the private key of the certificate (when using the local machine's store,
// the program might need administrative rights to access the private key)
try {
System.Security.Cryptography.AsymmetricAlgorithm am = cert.PrivateKey;
GC.KeepAlive(am); // Ensure the compiler does not optimize-away the above call
} catch (Exception ex) {
if (ExceptionUtils.ShouldExceptionBeRethrown(ex))
{
throw;
}
throw new Exception("Error when retrieving the private key of the certificate. Make sure "
+ "you run this program with correct privileges.\r\n\r\n"
+ ex.GetType().ToString() + ": " + ex.Message, ex);
}
}
ForwarderConfiguration conf = new ForwarderConfiguration()
{
MaxConcurrentConnections = maxConcurrentConnections,
RemoteHost = remoteHost.Value,
RemotePort = ushort.Parse(remotePort.Value, CultureInfo.InvariantCulture),
LocalPort = ushort.Parse(localPort.Value, CultureInfo.InvariantCulture),
RemoteSslHostname = remoteSslHostname,
LocalSslCert = cert
};
configs.Add(conf);
}
} catch (Exception ex) {
if (ExceptionUtils.ShouldExceptionBeRethrown(ex))
{
throw;
}
errorLogger.LogError("An error occured when parsing the following XML configuration entry:\r\n"
+ node.ToString() + "\r\n\r\nError Details:\r\n" + FormatExceptionForLog(ex));
}
}
}
} catch (Exception ex) {
if (ExceptionUtils.ShouldExceptionBeRethrown(ex))
{
throw;
}
errorLogger.LogError("An error when reading the XML configuration.\r\n\r\nError Details:\r\n" + FormatExceptionForLog(ex));
}
return(configs);
}