/// <summary>
/// This is the main constructor.
/// </summary>
/// <param name="resourceTracker">The resource tracker.</param>
/// <param name="client">The client to hold.</param>
/// <param name="mappingChannelId">The mapping channel.param>
/// <param name="maxAllowedPollWait">The maximum permitted poll length.</param>
public ClientPriorityHolder(IResourceTracker resourceTracker
, ClientHolder client
, string mappingChannelId
, IListenerClientPollAlgorithm priorityAlgorithm
)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
if (priorityAlgorithm == null)
{
throw new ArgumentNullException("algorithm");
}
mPriorityAlgorithm = priorityAlgorithm;
Client = client;
mMappingChannel = mappingChannelId;
//Create the metrics container to hold the calculations for poll priority and reservation amount.
mMetrics = new ClientPriorityHolderMetrics(mPriorityAlgorithm
, resourceTracker?.RegisterRequestRateLimiter(client.Name, client.ResourceProfiles)
, client.Priority
, client.Weighting
);
mPriorityAlgorithm.InitialiseMetrics(mMetrics);
}
/// <summary>
/// Restore the previously claimed message body's payload via a <see cref="TrackingStream"/> stream if it has been
/// claimed to disk while being processed, that is if current payload is either one of the <see
/// cref="Schemas.Xml.Claim.Check"/> or <see cref="Schemas.Xml.Claim.CheckOut"/> token messages. Leave the message
/// body's payload stream unaltered otherwise.
/// </summary>
/// <param name="message">
/// The <see cref="IBaseMessage"/> token message whose message body's payload stream is going to be restored to
/// the payload that has been previously claimed.
/// </param>
/// <param name="resourceTracker">
/// Pipeline's <see cref="IResourceTracker"/> to which to register the restored message body stream for later
/// cleanup.
/// </param>
/// <remarks>
/// The <see cref="TrackingStream"/> that will replace the <paramref name="message"/> stream with its previously
/// captured original payload, will have its <see cref="TrackingStream.CaptureDescriptor"/> point to the previously
/// captured-to-disk body payload, thereby providing an opportunity for the <see cref="MessagingStep"/> to share
/// that already captured payload without saving it to disk again.
/// </remarks>
public virtual void Redeem(IBaseMessage message, IResourceTracker resourceTracker)
{
var messageType = message.GetOrProbeMessageType(resourceTracker);
if (messageType == typeof(Claim.Check).GetMetadata().MessageType || messageType == typeof(Claim.CheckOut).GetMetadata().MessageType)
{
var messageBodyCaptureDescriptor = message.BodyPart.AsMessageBodyCaptureDescriptor();
if (_logger.IsDebugEnabled)
{
_logger.DebugFormat("Performing redeem of claim check token '{0}'.", messageBodyCaptureDescriptor.Data);
}
// replace claim token with actual content
message.BodyPart.SetDataStream(
new TrackingStream(OpenClaim(messageBodyCaptureDescriptor.Data), messageBodyCaptureDescriptor),
resourceTracker);
}
else if (messageType == typeof(Claim.CheckIn).GetMetadata().MessageType)
{
throw new InvalidOperationException(
string.Format(
"Invalid token message, {0} token is not expected to be redeemed.",
typeof(Claim.CheckIn).GetMetadata().RootElementName));
}
else
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("Skipping redeem of claim check token; message body stream's payload is not a token.");
}
}
}
public static string GetOrProbeMessageType(this IBaseMessage message, IResourceTracker resourceTracker)
{
var messageType = message.GetProperty(BtsProperties.MessageType);
return(messageType.IsNullOrEmpty()
? message.ProbeMessageType(resourceTracker)
: messageType);
}
/// <summary>
/// This method gets the list of clients for the relevant listeners.
/// </summary>
protected override void StartInternal()
{
mResourceTracker = SharedServices.GetService <IResourceTracker>();
if (mResourceTracker == null)
{
throw new ArgumentNullException("ResourceTracker cannot be retrieved.");
}
}
public CSVDumper(IResourceTracker irt, System.Collections.IComparer comparer)
{
m_comparer = comparer;
m_arer = new System.Collections.ArrayList();
foreach (ResourceEventRecord rer in irt)
{
m_arer.Add(rer);
}
}
/// <summary>
/// This method gets the list of clients for the relevant listeners.
/// </summary>
protected override void StartInternal()
{
//Get the resource tracker that will be used to reduce message in
mResourceTracker = SharedServices.GetService <IResourceTracker>();
if (mResourceTracker == null)
{
throw new ArgumentNullException("ResourceTracker cannot be retrieved.");
}
}
public static string ProbeMessageType(this IBaseMessage message, IResourceTracker resourceTracker)
{
var markableForwardOnlyEventingReadStream = message.BodyPart.WrapOriginalDataStream(
originalStream => originalStream.AsMarkable(),
resourceTracker);
var messageType = message.BodyPart.Data.EnsureMarkable().Probe().MessageType;
markableForwardOnlyEventingReadStream.StopMarking();
return(messageType);
}
/// <inheritdoc />
public InMemoryDeterministicSeedManager(
IResourceTracker resourceTracker,
ISigningHelper signingHelper,
IAddressGenerator addressGenerator,
IIotaRepository repository)
: base(resourceTracker, signingHelper, addressGenerator, repository)
{
this.CurrentIndex = -1;
this.References = new Dictionary <string, Seed>();
}
public IotaFhirRepository(
IIotaRepository repository,
IFhirTryteSerializer serializer,
IResourceTracker resourceTracker,
ISeedManager seedManager)
{
this.Serializer = serializer;
this.ResourceTracker = resourceTracker;
this.SeedManager = seedManager;
this.ChannelFactory = new MamChannelFactory(CurlMamFactory.Default, CurlMerkleTreeFactory.Default, repository);
this.SubscriptionFactory = new MamChannelSubscriptionFactory(repository, CurlMamParser.Default, CurlMask.Default);
}
protected DeterministicSeedManager(
IResourceTracker resourceTracker,
ISigningHelper signingHelper,
IAddressGenerator addressGenerator,
IIotaRepository repository)
{
this.ResourceTracker = resourceTracker;
this.SigningHelper = signingHelper;
this.AddressGenerator = addressGenerator;
this.SubscriptionFactory = new MamChannelSubscriptionFactory(repository, CurlMamParser.Default, CurlMask.Default);
this.ChannelFactory = new MamChannelFactory(CurlMamFactory.Default, CurlMerkleTreeFactory.Default, repository);
}
/// <inheritdoc />
public SeedManager(
IResourceTracker resourceTracker,
ISigningHelper signingHelper,
IAddressGenerator addressGenerator,
IIotaRepository repository,
IEncryption encryption,
string databaseFilename = "iotafhir.sqlite")
: base(resourceTracker, signingHelper, addressGenerator, repository)
{
this.Encryption = encryption;
this.ConnectionString = databaseFilename;
this.Init(databaseFilename);
}
public static string ProbeMessageType(this IBaseMessage message, IResourceTracker resourceTracker)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
var markableForwardOnlyEventingReadStream = message.BodyPart.WrapOriginalDataStream(
originalStream => originalStream.AsMarkable(),
resourceTracker);
var messageType = message.BodyPart.Data.Probe().MessageType;
markableForwardOnlyEventingReadStream.StopMarking();
return(messageType);
}
/// <summary>
/// Replace the message body's payload stream with either a <see cref="Schemas.Xml.Claim.Check"/> or a <see
/// cref="Schemas.Xml.Claim.CheckIn"/> token message if its content has been assessed to be saved to disk while
/// being tracked (see <see cref="SetupMessageBodyCapture"/>). Leave the message body's payload stream unaltered
/// otherwise.
/// </summary>
/// <param name="message">
/// The <see cref="IBaseMessage"/> whose message body's payload stream is going to be claimed and replace by a
/// token message.
/// </param>
/// <param name="resourceTracker">
/// Pipeline's <see cref="IResourceTracker"/> to which to report the newly created message token stream.
/// </param>
/// <remarks>
/// The <see cref="IBaseMessage"/>'s <see cref="IBaseMessageContext"/> is also updated with the message type of
/// the token message that is put in place of the actual message body's payload.
/// </remarks>
public virtual void Claim(IBaseMessage message, IResourceTracker resourceTracker)
{
var trackingStream = message.BodyPart.GetOriginalDataStream() as TrackingStream;
if (trackingStream == null)
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("Skipping claim of message body stream's payload; BodyPart's OriginalDataStream is not a TrackingStream.");
}
}
else if (trackingStream.CaptureDescriptor.CaptureMode != MessageBodyCaptureMode.Claimed)
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("Skipping claim of message body stream's payload; CaptureDescriptor.CaptureMode is not MessageBodyCaptureMode.Claimed.");
}
}
else
{
if (_logger.IsDebugEnabled)
{
_logger.DebugFormat("Performing claim of message body stream's payload '{0}'.", trackingStream.CaptureDescriptor.Data);
}
var claimedMessageType = message.GetProperty(BtsProperties.MessageType);
DocumentSpec documentSpec;
Stream tokenMessageStream;
if (RequiresCheckInAndOut)
{
documentSpec = typeof(Claim.CheckIn).GetMetadata().DocumentSpec;
tokenMessageStream = MessageFactory.CreateClaimCheckIn(claimedMessageType, trackingStream.CaptureDescriptor.Data).AsStream();
}
else
{
documentSpec = typeof(Claim.Check).GetMetadata().DocumentSpec;
tokenMessageStream = MessageFactory.CreateClaimCheck(claimedMessageType, trackingStream.CaptureDescriptor.Data).AsStream();
}
// fix the message type before capturing the body stream so that it get captured while tracking MessagingStep
message.Promote(BtsProperties.MessageType, documentSpec.DocType);
message.Promote(BtsProperties.SchemaStrongName, documentSpec.DocSpecStrongName);
// drain and capture body stream
trackingStream.Capture();
// replace message body's payload with the token message stream
message.BodyPart.SetDataStream(tokenMessageStream, resourceTracker);
}
}
/// <inheritdoc />
public SqlLiteDeterministicSeedManager(
IResourceTracker resourceTracker,
ISigningHelper signingHelper,
IAddressGenerator addressGenerator,
IIotaRepository repository,
IEncryption encryption,
IDbConnectionSupplier connectionSupplier = null,
string databaseFilename = "iotafhir.sqlite")
: base(resourceTracker, signingHelper, addressGenerator, repository)
{
this.Encryption = encryption;
this.ConnectionSupplier = connectionSupplier ?? new DefaultDbConnectionSupplier();
this.ConnectionString = $"Data Source={databaseFilename};Version=3;";
DatabaseInitializer.InitFhirDatabase(this.ConnectionSupplier, databaseFilename);
}
/// <summary>
/// This constructor build up the poll collection and sets the correct poll priority.
/// </summary>
/// <param name="listeners"></param>
/// <param name="resourceTracker"></param>
/// <param name="algorithm"></param>
/// <param name="iterationId"></param>
public ClientPriorityCollection(
List <IListener> listeners
, IResourceTracker resourceTracker
, IListenerClientPollAlgorithm algorithm
, long iterationId
)
{
mPriorityAlgorithm = algorithm;
mIteration = iterationId;
Created = DateTime.UtcNow;
//Get the list of active clients.
mListenerClients = new Dictionary <Guid, ClientPriorityHolder>();
foreach (var listener in listeners)
{
if (listener.ListenerClients != null)
{
foreach (var client in listener.ListenerClients)
{
var holder = new ClientPriorityHolder(resourceTracker, client, listener.ListenerMappingChannelId, algorithm);
mListenerClients.Add(holder.Id, holder);
}
}
}
//Get the supported levels.
mListenerPollLevels = mListenerClients
.Select((c) => c.Value.Priority)
.Distinct()
.OrderByDescending((i) => i)
.ToArray();
mReprioritise = 0;
//Finally create a poll chain for each individual priority level
Reprioritise();
}
public IotaFhirRepository(IIotaRepository repository, IFhirTryteSerializer serializer, IResourceTracker resourceTracker)
{
this.Serializer = serializer;
this.ResourceTracker = resourceTracker;
this.ChannelFactory = new MamChannelFactory(CurlMamFactory.Default, CurlMerkleTreeFactory.Default, repository);
this.SubscriptionFactory = new MamChannelSubscriptionFactory(repository, CurlMamParser.Default, CurlMask.Default);
this.ResultTimes = new List <TimeTrackingEntry>();
this.ReadTimes = new List <ReadTrackingEntry>();
}
/// <summary>
/// Wraps this message part's original data stream in another stream returned by the <paramref name="wrapper"/>
/// delegate.
/// </summary>
/// <param name="messagePart">
/// The part whose original data stream is wrapped.
/// </param>
/// <param name="wrapper">
/// A delegate, or stream factory, that returns the stream wrapping the original one.
/// </param>
/// <param name="tracker">
/// Pipeline's resource tracker to which to report the newly created wrapping stream.
/// </param>
/// <returns>
/// The new wrapping <see cref="Stream"/> if it is not the same instance as the original one. The original <see
/// cref="Stream"/> otherwise.
/// </returns>
public static T WrapOriginalDataStream <T>(this IBaseMessagePart messagePart, Func <Stream, T> wrapper, IResourceTracker tracker) where T : Stream
{
// TODO ?consider providing an overload when there is no IResourceTracker as this is necessary only for unmanaged objects/resources?
if (messagePart == null)
{
throw new ArgumentNullException("messagePart");
}
if (wrapper == null)
{
throw new ArgumentNullException("wrapper");
}
if (tracker == null)
{
throw new ArgumentNullException("tracker");
}
var originalDataStream = messagePart.GetOriginalDataStream();
if (originalDataStream == null)
{
return(null);
}
var wrappingStream = wrapper(originalDataStream);
if (ReferenceEquals(originalDataStream, wrappingStream))
{
return((T)originalDataStream);
}
if (_logger.IsDebugEnabled)
{
_logger.DebugFormat("Wrapping message part's original data stream in a '{0}' stream.", wrappingStream.GetType().FullName);
}
messagePart.SetDataStream(wrappingStream, tracker);
return(wrappingStream);
}
/// <summary>
/// Replaces this <paramref name="messagePart"/>'s original data stream by another <paramref name="stream"/>.
/// </summary>
/// <param name="messagePart">
/// The part whose original data stream is replaced.
/// </param>
/// <param name="stream">
/// The replacement stream.
/// </param>
/// <param name="tracker">
/// Pipeline's resource tracker to which to report the newly created wrapping stream.
/// </param>
public static void SetDataStream(this IBaseMessagePart messagePart, Stream stream, IResourceTracker tracker)
{
// TODO ?consider providing an overload when there is no IResourceTracker as this is necessary only for unmanaged objects/resources? not really necessary as one could use Data setter, but it'd be consistent/balanced API
if (messagePart == null)
{
throw new ArgumentNullException("messagePart");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (tracker == null)
{
throw new ArgumentNullException("tracker");
}
messagePart.Data = stream;
tracker.AddResource(stream);
}
public RandomSeedManager(IResourceTracker resourceTracker)
{
this.ResourceTracker = resourceTracker;
this.References = new Dictionary <string, Seed>();
}
/// <summary>
/// Wraps this message part's original data stream in another stream returned by the <paramref name="wrapper"/>
/// delegate.
/// </summary>
/// <param name="messagePart">
/// The part whose original data stream is wrapped.
/// </param>
/// <param name="wrapper">
/// A delegate, or stream factory, that returns the stream wrapping the original one.
/// </param>
/// <param name="tracker">
/// Pipeline's resource tracker to which to report the newly created wrapping stream.
/// </param>
/// <returns>
/// The new wrapping <see cref="Stream"/> if it is not the same instance as the original one. The original <see
/// cref="Stream"/> otherwise.
/// </returns>
public static T WrapOriginalDataStream <T>(this IBaseMessagePart messagePart, Func <Stream, T> wrapper, IResourceTracker tracker) where T : Stream
{
if (messagePart == null)
{
throw new ArgumentNullException(nameof(messagePart));
}
if (wrapper == null)
{
throw new ArgumentNullException(nameof(wrapper));
}
if (tracker == null)
{
throw new ArgumentNullException(nameof(tracker));
}
var originalDataStream = messagePart.GetOriginalDataStream();
if (originalDataStream == null)
{
return(null);
}
var wrappingStream = wrapper(originalDataStream);
if (ReferenceEquals(originalDataStream, wrappingStream))
{
return((T)originalDataStream);
}
if (_logger.IsDebugEnabled)
{
_logger.DebugFormat("Wrapping message part's original data stream in a '{0}' stream.", wrappingStream.GetType().FullName);
}
messagePart.SetDataStream(wrappingStream, tracker);
return(wrappingStream);
}
/// <summary>
/// Replaces this <paramref name="messagePart"/>'s original data stream by another <paramref name="stream"/>.
/// </summary>
/// <param name="messagePart">
/// The part whose original data stream is replaced.
/// </param>
/// <param name="stream">
/// The replacement stream.
/// </param>
/// <param name="tracker">
/// Pipeline's resource tracker to which to report the newly created wrapping stream.
/// </param>
public static void SetDataStream(this IBaseMessagePart messagePart, Stream stream, IResourceTracker tracker)
{
if (messagePart == null)
{
throw new ArgumentNullException(nameof(messagePart));
}
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (tracker == null)
{
throw new ArgumentNullException(nameof(tracker));
}
messagePart.Data = stream;
tracker.AddResource(stream);
}
