/// <summary> /// Initializes a new instance of the <see cref="PersistenceChannel" /> class. /// </summary> /// <param name="storageDirectoryPath"> /// Full path of a directory name. Under this folder all the transmissions will be saved. /// Setting this value groups channels, even from different processes. /// If 2 (or more) channels has the same <c>storageFolderName</c> only one channel will perform the sending even if the /// channel is in a different process/AppDomain/Thread. /// </param> /// <param name="sendersCount"> /// Defines the number of senders. A sender is a long-running thread that sends telemetry batches in intervals defined /// by <see cref="SendingInterval" />. /// So the amount of senders also defined the maximum amount of http channels opened at the same time. /// </param> public PersistenceChannel(string storageDirectoryPath = null, int sendersCount = 1) { _storage = new StorageService(); _storage.Init(storageDirectoryPath); _transmitter = new PersistenceTransmitter(_storage, sendersCount); _flushManager = new FlushManager(_storage); EndpointAddress = TelemetryServiceEndpoint; }
/// <summary> /// Initializes a new instance of the <see cref="PersistenceTransmitter" /> class. /// </summary> /// <param name="storage">The transmissions storage.</param> /// <param name="sendersCount">The number of senders to create.</param> /// <param name="createSenders"> /// A boolean value that indicates if this class should try and create senders. This is a /// workaround for unit tests purposes only. /// </param> internal PersistenceTransmitter(BaseStorageService storage, int sendersCount, bool createSenders = true) { _storage = storage; if (createSenders) { for (int i = 0; i < sendersCount; i++) { _senders.Add(new Sender(_storage, this)); } } }
/// <summary> /// Initializes a new instance of the <see cref="Sender" /> class. /// </summary> /// <param name="storage">The storage that holds the transmissions to send.</param> /// <param name="transmitter"> /// The persistence transmitter that manages this Sender. /// The transmitter will be used as a configuration class, it exposes properties like SendingInterval that will be read /// by Sender. /// </param> /// <param name="startSending"> /// A boolean value that determines if Sender should start sending immediately. This is only /// used for unit tests. /// </param> internal Sender(BaseStorageService storage, PersistenceTransmitter transmitter, bool startSending = true) { _stopped = false; DelayHandler = new AutoResetEvent(false); _stoppedHandler = new AutoResetEvent(false); _drainingTimeout = TimeSpan.FromSeconds(100); _defaultSendingInterval = TimeSpan.FromSeconds(5); _transmitter = transmitter; _storage = storage; if (startSending) { // It is currently possible for the long - running task to be executed(and thereby block during WaitOne) on the UI thread when // called by a task scheduled on the UI thread. Explicitly specifying TaskScheduler.Default // when calling StartNew guarantees that Sender never blocks the main thread. Task.Factory.StartNew(SendLoop, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default) .ContinueWith( t => PersistenceChannelDebugLog.WriteException(t.Exception, "Sender: Failure in SendLoop"), TaskContinuationOptions.OnlyOnFaulted); } }
/// <summary> /// Initializes a new instance of the <see cref="FlushManager" /> class. /// </summary> /// <param name="storage">The storage that persists the telemetries.</param> internal FlushManager(BaseStorageService storage) { _storage = storage; }