public LatencyStrategy(ILatencyPerformer latencyPerformer, RateManager rateManager, Func <TimeSpan> latencyProvider, Func <double> rateProvider, IRequestStrategy baseStrategy)
{
this.latencyPerformer = latencyPerformer;
this.rateManager = rateManager;
this.latencyProvider = latencyProvider;
this.rateProvider = rateProvider;
this.baseStrategy = baseStrategy;
}
public void SetUp()
{
idempotencyIdentifier = Substitute.For <IIdempotencyIdentifier>();
sequential1Strategy = Substitute.For <IRequestStrategy>();
forkingStrategy = Substitute.For <IRequestStrategy>();
strategy = new IdempotencySignBasedRequestStrategy(idempotencyIdentifier, sequential1Strategy, forkingStrategy);
request = Request.Get("http://localhost:80/foo/bar");
}
public PiecePicker(IBtClient client, HandlerExchange exchange, IRequestStrategy requestStrategy, int blockLen, CancellationToken?cancelToken)
{
_pickerTask = new Task(StartRequesting);
_client = client;
_exchange = exchange;
RequestStrategy = requestStrategy;
_blockLen = blockLen;
_myCancelTokenOwner = new CancellationTokenSource();
_outCancelToken = cancelToken ?? _myCancelTokenOwner.Token;
}
private RequestParameters(
IRequestStrategy strategy,
RequestPriority?priority,
ImmutableArrayDictionary <string, object> properties,
TimeSpan?connectionTimeout)
{
Strategy = strategy;
Priority = priority;
ConnectionTimeout = connectionTimeout;
this.properties = properties ?? ImmutableArrayDictionary <string, object> .Empty;
}
public OrignIpHashRequestStrategy(SpiderService spiderService) : base(spiderService)
{
if (_requestStrategy == null)
{
lock (obj)
{
if (_requestStrategy == null)
{
_requestStrategy = new RoundRobinRequestStrategy(SpiderService);
}
}
}
}
public override IRequestStrategy GetRequestStrategy()
{
if (_requestStrategy == null)
{
lock (obj)
{
if (_requestStrategy == null)
{
_requestStrategy = new RoundRobinRequestStrategy(TargetSpiderService);
}
}
}
return _requestStrategy;
}
public override IRequestStrategy GetRequestStrategy()
{
if (_requestStrategy == null)
{
lock (obj)
{
if (_requestStrategy == null)
{
_requestStrategy = new RandomRequestStrategy(TargetSpiderService);
}
}
}
return(_requestStrategy);
}
public static Task <ClusterResult> SendAsync(
[NotNull] this IClusterClient client,
[NotNull] Request request,
[CanBeNull] TimeSpan?timeout = null,
[CanBeNull] IRequestStrategy strategy = null,
[CanBeNull] RequestPriority?priority = null,
CancellationToken cancellationToken = default)
=> client.SendAsync(
request,
RequestParameters.Empty
.WithStrategy(strategy)
.WithPriority(priority),
timeout,
cancellationToken);
public static ClusterResult Send(
[NotNull] this IClusterClient client,
[NotNull] Request request,
[CanBeNull] TimeSpan?timeout = null,
[CanBeNull] IRequestStrategy strategy = null,
CancellationToken cancellationToken = default(CancellationToken),
[CanBeNull] RequestPriority?priority = null,
[CanBeNull] string operationName = null)
{
using (operationName == null ? null : Context.Properties.Use(TracingAnnotationNames.Operation, operationName))
{
return(client.SendAsync(request, timeout, strategy, cancellationToken, priority).GetAwaiter().GetResult());
}
}
/// <inheritdoc cref="SendAsync"/>
public static ClusterResult Send(
[NotNull] this IClusterClient client,
[NotNull] Request request,
[CanBeNull] TimeSpan?timeout = null,
[CanBeNull] IRequestStrategy strategy = null,
[CanBeNull] RequestPriority?priority = null,
CancellationToken cancellationToken = default)
=> client.SendAsync(
request,
timeout,
strategy,
priority,
cancellationToken)
.GetAwaiter()
.GetResult();
public Task <ClusterResult> SendAsync(
Request request,
TimeSpan?timeout = null,
IRequestStrategy strategy = null,
CancellationToken cancellationToken = default(CancellationToken),
RequestPriority?priority = null)
{
return(pipelineDelegate(
CreateContext(
request,
timeout ?? configuration.DefaultTimeout,
strategy ?? configuration.DefaultRequestStrategy,
cancellationToken,
priority ?? configuration.DefaultPriority,
configuration.MaxReplicasUsedPerRequest)
));
}
public RequestContext(
Request request,
IRequestStrategy strategy,
IRequestTimeBudget budget,
ILog log,
CancellationToken cancellationToken,
RequestPriority?priority,
int maximumReplicasToUse)
{
Request = request;
Strategy = strategy;
Budget = budget;
Log = log;
Priority = priority;
CancellationToken = cancellationToken;
MaximumReplicasToUse = maximumReplicasToUse;
ResetReplicaResults();
}
public override void PreStart()
{
_receiveBuffer = new ModuloFixedSizeBuffer <TOut>(Settings.BufferCapacity);
_requestStrategy = new WatermarkRequestStrategy(highWatermark: _receiveBuffer.Capacity);
_stageActor = GetStageActor(InitialReceive);
Log.Debug("[{0}] Allocated receiver: {1}", StageActorName, Self);
var initialPartnerRef = _stage._initialPartnerRef;
if (initialPartnerRef != null) // this will set the partnerRef
{
ObserveAndValidateSender(initialPartnerRef, "<should never happen>");
}
_promise.SetResult(new SinkRefImpl <TOut>(Self));
//this timer will be cancelled if we receive the handshake from the remote SinkRef
// either created in this method and provided as self.ref as initialPartnerRef
// or as the response to first CumulativeDemand request sent to remote SinkRef
ScheduleOnce(SubscriptionTimeoutKey, SubscriptionTimeout.Timeout);
}
/// <summary>
/// Create a new instance of <see cref="RequestParameters"/> with specified <paramref name="strategy"/> and <paramref name="priority"/>.
/// </summary>
public RequestParameters([CanBeNull] IRequestStrategy strategy = null, [CanBeNull] RequestPriority?priority = null)
: this(strategy, priority, null, null)
{
Strategy = strategy;
Priority = priority;
}
public RequestStrategySubscriber(IActorRef probe, IRequestStrategy strat)
{
_probe = probe;
RequestStrategy = strat;
}
public static Props Props(IActorRef probe, IRequestStrategy strat)
=> Akka.Actor.Props.Create(() => new RequestStrategySubscriber(probe, strat)).WithDispatcher("akka.test.stream-dispatcher");
public RequestStrategySubscriber(IActorRef probe, IRequestStrategy strat)
{
_probe = probe;
RequestStrategy = strat;
}
public static Props Props(IActorRef probe, IRequestStrategy strat)
=> Akka.Actor.Props.Create(() => new RequestStrategySubscriber(probe, strat)).WithDispatcher("akka.test.stream-dispatcher");
/// <returns>New instance of <see cref="RequestParameters"/> with specified <paramref name="strategy"/>.</returns>
public RequestParameters WithStrategy([CanBeNull] IRequestStrategy strategy)
=> ReferenceEquals(Strategy, strategy)
? this
: new RequestParameters(strategy, Priority, properties, ConnectionTimeout);
public IdempotencySignBasedRequestStrategy(IIdempotencyIdentifier idempotencyIdentifier, IRequestStrategy sequential1Strategy, IRequestStrategy forkingStrategy)
{
this.sequential1Strategy = sequential1Strategy;
this.forkingStrategy = forkingStrategy;
this.idempotencyIdentifier = idempotencyIdentifier;
}
private RequestContext CreateContext(Request request, TimeSpan timeout, IRequestStrategy strategy, CancellationToken cancellationToken, RequestPriority?priority, int maxReplicasToUse)
{
return(new RequestContext(request, strategy, RequestTimeBudget.StartNew(timeout, budgetPrecision), configuration.Log, cancellationToken, priority, maxReplicasToUse));
}
public StrategySubscriber(IRequestStrategy requestStrategy)
{
RequestStrategy = requestStrategy;
}
/// <summary>
/// Creates new BtClient
/// </summary>
/// <param name="meta">Torrent metainfo</param>
/// <param name="clientEndPoint">Client's external network endpoint. Must be accessible by other peers</param>
/// <param name="defaultEncoding">Message text encoding</param>
/// <param name="output">Output stream. If torrent contains multiple files </param>
/// <param name="blockLen">Piece block length in bytes. 10^14 bytes if not specified</param>
/// <param name="fileName">File name to download. If not specified all files will be downloaded</param>
/// <param name="dhtEndPoint">Mainline DHT's client endpoint. DHT will not be used if parameter is null</param>
/// <param name="storage">Storage for caching pieces. If not specified MemCachedPieceStorage will be used</param>
/// <param name="cancelToken">Requesting cancel on this CancellationToken causes forcefull shutdown of client</param>
public BtClient(Metainfo meta, IPEndPoint clientEndPoint, Encoding defaultEncoding, Stream output, int blockLen = 16384, string fileName = null, PiecePickStrategy piecePickStrategy = PiecePickStrategy.RarestFirst, IPEndPoint dhtEndPoint = null, IPieceStorage storage = null, CancellationToken?cancelToken = null)
{
Metainfo = meta;
_endPoint = clientEndPoint;
DefaultEncoding = defaultEncoding;
_peerId = GeneratePeerId();
Handshake = CalcHandshake();
BlockLength = blockLen;
BlocksInPieceCount = Metainfo.PieceLength / BlockLength;
AnnounceManager = new AnnounceManager(this, Metainfo.Announces);
IResourcePool <Peers.Peer> peersPool = AnnounceManager;
if (dhtEndPoint != null)
{
MainlineManager = new MainlineManagerExt(clientEndPoint, dhtEndPoint, meta.InfoHash);
peersPool = new MergedPool <Peer>(new IResourcePool <Peer>[] {
AnnounceManager,
MainlineManager
});
}
if (storage == null)
{
storage = new FileStorage(Metainfo, BlockLength);
}
PieceStorage = storage;
BitField piecesHave = PieceStorage.GetValidPieces();
IRequestStrategy rqStrat = null;
switch (piecePickStrategy)
{
case PiecePickStrategy.RarestFirst:
RarestFirstRqStrategy rarestFirstRqStrategy = new RarestFirstRqStrategy(Metainfo.PiecesCount, piecesHave);
rqStrat = rarestFirstRqStrategy;
PeerStateCache = new PeerStateCache(rarestFirstRqStrategy);
break;
case PiecePickStrategy.Random:
rqStrat = new RandomPieceRqStrategy(Metainfo.PiecesCount, piecesHave);
break;
case PiecePickStrategy.Sequential:
rqStrat = new SequentialPieceRqStrategy(Metainfo.PiecesCount);
break;
case PiecePickStrategy.SequentialOneFile:
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentException("fileName");
}
rqStrat = new SequentialPieceRqStrategyOneFile(Metainfo, fileName);
break;
default:
break;
}
if (PeerStateCache == null)
{
PeerStateCache = new PeerStateCache();
}
ConnectionManager = new ConnectionHub(this, clientEndPoint, peersPool, PeerStateCache);
HandlerExchange = new HandlerExchange(ConnectionManager, PeerStateCache);
PiecePicker = new PiecePicker(this, HandlerExchange, rqStrat, BlockLength, cancelToken);
}
public RequestController(IRequestStrategy requestStrategy)
{
_requestStrategy = requestStrategy;
}
