/// <inheritdoc/>
public Guid RegisterStreamValueSubscriber <TTarget>(
IStreamAdapter streamAdapter,
RelativeTimeInterval epsilonTimeInterval,
Action <bool, TTarget, DateTime, DateTime> callback)
{
var publisher = default(StreamValuePublisher <TSource, TTarget>);
lock (this.publishers)
{
// Check if we have a publisher for this epsilon interval
if (!this.publishers.ContainsKey(epsilonTimeInterval))
{
this.publishers.Add(epsilonTimeInterval, new List <IStreamValuePublisher <TSource> >());
}
// Get the list of publishers for the specified epsilon interval
var epsilonTimeIntervalPublishers = this.publishers[epsilonTimeInterval];
// Check if we already have a publisher that uses the specified stream adapter
publisher = epsilonTimeIntervalPublishers.FirstOrDefault(p => p.StreamAdapter.Equals(streamAdapter)) as StreamValuePublisher <TSource, TTarget>;
if (publisher == null)
{
// If not found, create a new publisher
publisher = new StreamValuePublisher <TSource, TTarget>(streamAdapter);
epsilonTimeIntervalPublishers.Add(publisher);
}
}
// Register the subscriber with this publisher
return(publisher.RegisterSubscriber(callback));
}
/// <summary>
/// Deserializes the Sphinx server response data on the provided stream and reconstitutes the graph of objects.
/// </summary>
/// <param name="stream">The stream that contains the data to deserialize.</param>
/// <exception cref="ServerErrorException"/>
/// <exception cref="SphinxException"/>
/// <exception cref="IOException"/>
internal protected override void Deserialize(IStreamAdapter stream)
{
IBinaryReader reader = Connection.FormatterFactory.CreateReader(stream);
// read general command response header values
Result.Status = (CommandStatus)reader.ReadInt16();
short serverCommandVersion = reader.ReadInt16();
// read response body length
int length = reader.ReadInt32();
if (length <= 0 || length > MaxCommandBodyLength)
{
throw new SphinxException(String.Format(Messages.Exception_InvalidServerResponseLength, length));
}
// read server response body
byte[] buffer = new byte[length];
stream.ReadBytes(buffer, length);
MemoryStream bodyStream = new MemoryStream(buffer);
IBinaryReader bodyReader = Connection.FormatterFactory.CreateReader(new StreamAdapter(bodyStream));
// check response status
ValidateResponse(bodyReader, serverCommandVersion);
// parse command result
DeserializeResponse(bodyReader);
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamCache{T}"/> class.
/// </summary>
/// <param name="streamName">the name of the stream to read.</param>
/// <param name="streamAdapter">the stream adapter to convert data from the stream into the type required by clients of this stream reader.</param>
public StreamCache(string streamName, IStreamAdapter streamAdapter /*, object[] streamAdapterParameters*/)
{
if (string.IsNullOrWhiteSpace(streamName))
{
throw new ArgumentNullException(nameof(streamName));
}
this.StreamName = streamName;
this.StreamAdapter = streamAdapter;
this.pool = PoolManager.Instance.GetPool <T>();
this.readRequestsInternal = new List <ReadRequest>();
this.readRequests = new ReadOnlyCollection <ReadRequest>(this.readRequestsInternal);
this.bufferLock = new object();
this.dataBuffer = new List <Message <T> >(1000);
this.indexBuffer = new List <StreamCacheEntry>(1000);
var itemComparer = Comparer <Message <T> > .Create((m1, m2) => m1.OriginatingTime.CompareTo(m2.OriginatingTime));
var indexComarer = Comparer <StreamCacheEntry> .Create((i1, i2) => i1.OriginatingTime.CompareTo(i2.OriginatingTime));
this.data = new ObservableKeyedCache <DateTime, Message <T> >(null, itemComparer, m => m.OriginatingTime);
this.index = new ObservableKeyedCache <DateTime, StreamCacheEntry>(null, indexComarer, ie => ie.OriginatingTime);
this.instantIndexView = null;
this.instantStreamReaders = new List <EpsilonInstantStreamReader <T> >();
if (this.needsDisposing)
{
this.data.CollectionChanged += this.OnCollectionChanged;
}
}
protected Stream GetStream(IStreamAdapter adapter)
{
PrivateObject po = new PrivateObject(adapter);
StreamAdapter_Accessor accessor = new StreamAdapter_Accessor(po);
return(accessor.Stream);
}
public void SetUp()
{
_mocks = new MockRepository();
_streamAdapter = _mocks.DynamicMock<IStreamAdapter>();
_serializeAdapter = _mocks.DynamicMock<ISerializeAdapter>();
}
/// <summary>
/// Initializes a new instance of the <see cref="InstantDataTarget"/> class.
/// </summary>
/// <param name="streamName">The name of the stream from which to receive updates when new data is available.</param>
/// <param name="streamAdapter">The stream adapter to convert the raw stream data to the type required by the callback target.</param>
/// <param name="cursorEpsilon">The cursor epsilon to use when searching for data.</param>
/// <param name="callback">The method to call when new data is available.</param>
public InstantDataTarget(string streamName, IStreamAdapter streamAdapter, RelativeTimeInterval cursorEpsilon, Action <object, IndexEntry> callback)
{
this.RegistrationToken = Guid.NewGuid();
this.StreamName = streamName;
this.StreamAdapter = streamAdapter;
this.CursorEpsilon = cursorEpsilon;
this.Callback = callback;
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamBinding"/> class.
/// </summary>
/// <param name="source">An existing stream binding to clone.</param>
/// <param name="summarizerType">The type of the stream summarizer, null if there is none.</param>
/// <param name="summarizerArgs">The arguments used when constructing the stream summarizer, null if ther is none.</param>
public StreamBinding(StreamBinding source, Type summarizerType, object[] summarizerArgs)
: this(source.StreamName, source.PartitionName, source.StoreName, source.StorePath, source.SimpleReaderType, source.StreamAdapterType, summarizerType, summarizerArgs)
{
this.streamAdapter = source.streamAdapter;
// Do not copy this over since the type or args may have changed
this.summarizer = null;
}
public IBinaryWriter CreateWriter(IStreamAdapter stream)
{
switch (_formatType)
{
case BinaryFormatType.BigEndian:
return new BigEndianBinaryWriter(stream, _encoding);
}
throw new NotSupportedException(String.Format(Messages.Exception_BinaryFormatNotSupported, Enum.GetName(typeof(BinaryFormatType), _formatType)));
}
public IBinaryWriter CreateWriter(IStreamAdapter stream)
{
switch (_formatType)
{
case BinaryFormatType.BigEndian:
return(new BigEndianBinaryWriter(stream, _encoding));
}
throw new NotSupportedException(String.Format(Messages.Exception_BinaryFormatNotSupported, Enum.GetName(typeof(BinaryFormatType), _formatType)));
}
/// <summary>
/// Initializes a new instance of the <see cref="AdaptingInstantDataProvider{TSource, TDestination}"/> class.
/// </summary>
/// <param name="streamAdapter">The stream adapter that will convert the incoming data to the data that the targets require.</param>
public AdaptingInstantDataProvider(IStreamAdapter streamAdapter)
{
if (streamAdapter == null)
{
throw new ArgumentNullException(nameof(streamAdapter));
}
this.streamAdapter = streamAdapter as StreamAdapter <TSource, TDestination>;
this.targets = new Dictionary <Guid, InstantDataTarget>();
}
private IStreamReader GetExistingStreamReader(string streamName, IStreamAdapter streamAdapter)
{
IStreamReader streamReader = this.streamReaders.Find(sr => sr.StreamName == streamName && sr.StreamAdapterType == streamAdapter?.GetType());
if (streamReader == null)
{
throw new ArgumentException("No stream reader exists for the stream.");
}
return(streamReader);
}
private IStreamReader GetOrCreateStreamReader <T>(string streamName, IStreamAdapter streamAdapter)
{
var streamReader = this.streamReaders.Find(sr => sr.StreamName == streamName && sr.StreamAdapterType == streamAdapter?.GetType());
if (streamReader == null)
{
streamReader = new StreamReader <T>(streamName, streamAdapter);
this.streamReaders.Add(streamReader);
}
return(streamReader);
}
/// <summary>
/// Initializes a new instance of the <see cref="BinaryReaderBase"/> class based on the supplied stream and a specific character encoding.
/// </summary>
/// <param name="input">Input stream</param>
/// <param name="encoding">The character encoding object used to decode strings from stream</param>
protected BinaryReaderBase(IStreamAdapter input, Encoding encoding)
{
ArgumentAssert.IsNotNull(input, "input");
ArgumentAssert.IsNotNull(encoding, "encoding");
if (!input.CanRead)
{
throw new IOException(Messages.Exception_CantReadFromStream);
}
_inputStream = input;
_encoding = encoding;
}
/// <summary>
/// Initializes a new instance of the <see cref="BinaryReaderBase"/> class based on the supplied stream and a specific character encoding.
/// </summary>
/// <param name="input">Input stream</param>
/// <param name="encoding">The character encoding object used to decode strings from stream</param>
protected BinaryReaderBase(IStreamAdapter input, Encoding encoding)
{
ArgumentAssert.IsNotNull(input, "input");
ArgumentAssert.IsNotNull(encoding, "encoding");
if (!input.CanRead)
{
throw new IOException(Messages.Exception_CantReadFromStream);
}
_inputStream = input;
_encoding = encoding;
}
protected BinaryWriterBase(IStreamAdapter output, Encoding encoding)
{
ArgumentAssert.IsNotNull(output, "output");
ArgumentAssert.IsNotNull(encoding, "encoding");
if (!output.CanWrite)
{
throw new IOException(Messages.Exception_CantWriteToStream);
}
_outputStream = output;
_encoding = encoding;
}
protected BinaryWriterBase(IStreamAdapter output, Encoding encoding)
{
ArgumentAssert.IsNotNull(output, "output");
ArgumentAssert.IsNotNull(encoding, "encoding");
if (!output.CanWrite)
{
throw new IOException(Messages.Exception_CantWriteToStream);
}
_outputStream = output;
_encoding = encoding;
}
private IStreamReader GetStreamReader <T>(string streamName, IStreamAdapter streamAdapter, bool createIfNecessary)
{
var streamReader = this.streamReaders.Find(sr => sr.StreamName == streamName && sr.StreamAdapterType == streamAdapter?.GetType());
if (streamReader == null)
{
if (createIfNecessary)
{
streamReader = new StreamReader <T>(streamName, streamAdapter);
this.streamReaders.Add(streamReader);
}
else
{
throw new ArgumentException("No stream reader exists for the stream binding.");
}
}
return(streamReader);
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamSource"/> class.
/// </summary>
/// <param name="partitionViewModel">The partition that is the stream's data source.</param>
/// <param name="streamReaderType">The type of stream reader that should be used to read data from the store.</param>
/// <param name="streamName">The name of the stream.</param>
/// <param name="streamMetadata">The metadata for the stream.</param>
/// <param name="streamAdapter">The stream adapter to use when reading stream data.</param>
/// <param name="summarizer">The summarizer to use when reading the stream.</param>
public StreamSource(
PartitionViewModel partitionViewModel,
Type streamReaderType,
string streamName,
IStreamMetadata streamMetadata,
IStreamAdapter streamAdapter,
ISummarizer summarizer)
{
this.StoreName = partitionViewModel.StoreName;
this.StorePath = partitionViewModel.StorePath;
this.StreamReaderType = streamReaderType;
this.StreamName = streamName;
this.StreamMetadata = streamMetadata;
this.StreamAdapter = streamAdapter;
this.Summarizer = summarizer;
this.IsLive = partitionViewModel.IsLivePartition;
partitionViewModel.PropertyChanged += this.PartitionPropertyChanged;
}
/// <summary>
/// Creates a stream member adapter based on a specified visualizer metadata. Any existing stream
/// adapter in the given visualizer metadata will be preserved within the stream member adapter.
/// </summary>
/// <param name="visualizerMetadata">The visualizer metadata.</param>
/// <param name="sourceDataType">The type of the stream's source data.</param>
/// <returns>A new visualizer metadata containing a stream member adapter.</returns>
internal static VisualizerMetadata CreateStreamMemberAdapter(VisualizerMetadata visualizerMetadata, Type sourceDataType)
{
// Clone the metadata
var metadataClone = visualizerMetadata.DeepClone();
// If the visualizer metadata already contains a stream adapter, create a stream member adapter that
// encapsulates it, otherwise create a stream member adapter that adapts directly from the message
// type to the member type.
if (visualizerMetadata.StreamAdapterType != null)
{
IStreamAdapter existingStreamAdapter = (IStreamAdapter)Activator.CreateInstance(visualizerMetadata.StreamAdapterType);
metadataClone.StreamAdapterType = typeof(StreamMemberAdapter <, , ,>).MakeGenericType(sourceDataType, existingStreamAdapter.SourceType, visualizerMetadata.StreamAdapterType, existingStreamAdapter.DestinationType);
}
else
{
metadataClone.StreamAdapterType = typeof(StreamMemberAdapter <,>).MakeGenericType(sourceDataType, metadataClone.DataType);
}
return(metadataClone);
}
/// <summary>
/// Serializes an command and graph of internal objects to the provided stream.
/// </summary>
/// <param name="stream">The stream where the command puts the serialized data.</param>
/// <exception cref="IOException"/>
internal protected override void Serialize(IStreamAdapter stream)
{
IBinaryWriter writer = Connection.FormatterFactory.CreateWriter(stream);
// send command id and version information
CommandInfo.Serialize(writer);
// serialize request body to temp. buffer to get command body length
MemoryStream buffer = new MemoryStream();
IBinaryWriter bufferWriter = Connection.FormatterFactory.CreateWriter(new StreamAdapter(buffer));
SerializeRequest(bufferWriter);
// send body length first
int length = (int)buffer.Length;
writer.Write(length);
// send buffer content
buffer.Position = 0;
stream.WriteBytes(buffer.ToArray(), length);
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamSource"/> class.
/// </summary>
/// <param name="partitionViewModel">The partition that is the stream's data source.</param>
/// <param name="streamReaderType">The type of stream reader that should be used to read data from the store.</param>
/// <param name="streamName">The name of the stream.</param>
/// <param name="streamMetadata">The metadata for the stream.</param>
/// <param name="streamAdapter">The stream adapter to use when reading stream data.</param>
/// <param name="summarizer">The summarizer to use when reading the stream.</param>
/// <param name="allocator">The allocator to use when reading data.</param>
/// <param name="deallocator">The deallocator to use when reading data.</param>
public StreamSource(
PartitionViewModel partitionViewModel,
Type streamReaderType,
string streamName,
IStreamMetadata streamMetadata,
IStreamAdapter streamAdapter,
ISummarizer summarizer,
Func <dynamic> allocator,
Action <dynamic> deallocator)
{
this.StoreName = partitionViewModel.StoreName;
this.StorePath = partitionViewModel.StorePath;
this.StreamReaderType = streamReaderType;
this.StreamName = streamName;
this.StreamMetadata = streamMetadata;
this.StreamAdapter = streamAdapter;
this.Summarizer = summarizer;
this.IsLive = partitionViewModel.IsLivePartition;
this.Allocator = allocator;
this.Deallocator = deallocator;
partitionViewModel.PropertyChanged += this.OnPartitionViewModelPropertyChanged;
}
protected internal override void Serialize(IStreamAdapter stream)
{
IBinaryWriter writer = Connection.FormatterFactory.CreateWriter(stream);
CommandInfo.Serialize(writer);
}
protected internal override void Deserialize(IStreamAdapter stream)
{
// do nothing
}
public XmlWriterMock(IStreamAdapter output) : base(output, _defaultEncoding)
{
}
public XmlWriterMock(IStreamAdapter output, Encoding encoding): base(output, encoding)
{
}
public XmlWriterMock(IStreamAdapter output, Encoding encoding) : base(output, encoding)
{
}
public XmlReaderMock(IStreamAdapter input, Encoding encoding): base(input, encoding)
{
}
protected internal override void Serialize(IStreamAdapter stream)
{
IBinaryWriter writer = Connection.FormatterFactory.CreateWriter(stream);
CommandInfo.Serialize(writer);
}
public IBinaryReader CreateReader(IStreamAdapter stream)
{
return(new XmlReaderMock(stream));
}
protected internal override void Deserialize(IStreamAdapter stream)
{
// do nothing
}
public BigEndianBinaryWriter(IStreamAdapter output): base(output)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="BinaryReaderBase"/> class based on the supplied stream and a specific character encoding.
/// </summary>
/// <param name="input">Input stream</param>
/// <param name="encoding">The character encoding object used to decode strings from stream</param>
public BigEndianBinaryReader(IStreamAdapter input, Encoding encoding) : base(input, encoding)
{
}
private const int MAX_LENGTH = 8 * 1024 * 1024; // 8MB (hardcoded in sphinxd)
#endregion
#region Constructors
/// <summary>
/// Initializes a new instance of the <see cref="BigEndianBinaryReader"/> class based on the supplied stream and using default encoding <see cref="UTF8Encoding"/>.
/// </summary>
/// <param name="input">Input stream</param>
public BigEndianBinaryReader(IStreamAdapter input) : base(input)
{
}
public XmlWriterMock(IStreamAdapter output): base(output, _defaultEncoding)
{
}
public object Deserialize(IStreamAdapter streamAdapter)
{
return _serializer.Deserialize(streamAdapter.Stream);
}
public IBinaryReader CreateReader(IStreamAdapter stream)
{
return new XmlReaderMock(stream);
}
public void Serialize(IStreamAdapter streamAdapter, object argument)
{
_serializer.Serialize(streamAdapter.Stream, argument);
}
protected Stream GetStream(IStreamAdapter adapter)
{
PrivateObject po = new PrivateObject(adapter);
StreamAdapter_Accessor accessor = new StreamAdapter_Accessor(po);
return accessor.Stream;
}
/// <summary>
/// Initializes a new instance of the <see cref="BinaryReaderBase"/> class based on the supplied stream and using default encoding <see cref="UTF8Encoding"/>.
/// </summary>
/// <param name="input">Input stream</param>
protected BinaryReaderBase(IStreamAdapter input) : this(input, _defaultEncoding)
{
}
private const int MAX_LENGTH = 8 * 1024 * 1024; // 8MB (hardcoded in sphinxd)
#endregion
#region Constructors
/// <summary>
/// Initializes a new instance of the <see cref="BigEndianBinaryReader"/> class based on the supplied stream and using default encoding <see cref="UTF8Encoding"/>.
/// </summary>
/// <param name="input">Input stream</param>
public BigEndianBinaryReader(IStreamAdapter input): base(input)
{
}
public XmlReaderMock(IStreamAdapter input): base(input, _defaultEncoding)
{
}
public IBinaryWriter CreateWriter(IStreamAdapter stream)
{
return(new XmlWriterMock(stream));
}
protected BinaryWriterBase(IStreamAdapter output): this(output, _defaultEncoding)
{
}
public IBinaryWriter CreateWriter(IStreamAdapter stream)
{
return(new ArrayListWriterMock(_list));
}
/// <summary>
/// Deserializes the Sphinx server response data on the provided stream and reconstitutes the graph of objects.
/// </summary>
/// <param name="stream">The stream that contains the data to deserialize.</param>
internal protected abstract void Deserialize(IStreamAdapter stream);
/// <summary>
/// Initializes a new instance of the <see cref="StreamBinding"/> class.
/// </summary>
/// <param name="source">An existing stream binding to clone.</param>
/// <param name="storeName">The store name.</param>
/// <param name="storePath">The store path.</param>
public StreamBinding(StreamBinding source, string storeName, string storePath)
: this(source.StreamName, source.PartitionName, storeName, storePath, source.SimpleReaderType, source.StreamAdapterType, source.SummarizerType, source.SummarizerArgs)
{
this.streamAdapter = source.streamAdapter;
this.summarizer = source.summarizer;
}
public BigEndianBinaryWriter(IStreamAdapter output, Encoding encoding): base(output, encoding)
{
}
public void Serialize(IStreamAdapter streamAdapter, object messageDTO)
{
_serializer.Serialize(streamAdapter.Stream, messageDTO);
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamValuePublisher{TSource, TDestination}"/> class.
/// </summary>
/// <param name="streamAdapter">The stream adapter that will convert the incoming data to the data that the targets require.</param>
public StreamValuePublisher(IStreamAdapter streamAdapter)
{
this.targets = new Dictionary <Guid, Action <bool, TDestination, DateTime, DateTime> >();
this.StreamAdapter = (streamAdapter ?? new PassthroughAdapter <TDestination>()) as StreamAdapter <TSource, TDestination>;
}
public IBinaryReader CreateReader(IStreamAdapter stream)
{
return new ArrayListReaderMock(_list);
}
public IBinaryWriter CreateWriter(IStreamAdapter stream)
{
return new XmlWriterMock(stream);
}
public IBinaryWriter CreateWriter(IStreamAdapter stream)
{
return new ArrayListWriterMock(_list);
}
public BinaryMessageSerializer(IStreamAdapter streamAdapter, ISerializeAdapter serializeAdapter)
{
_stream = streamAdapter;
_serializer = serializeAdapter;
}
public IBinaryReader CreateReader(IStreamAdapter stream)
{
return(new ArrayListReaderMock(_list));
}
/// <summary>
/// Initializes a new instance of the <see cref="BinaryReaderBase"/> class based on the supplied stream and a specific character encoding.
/// </summary>
/// <param name="input">Input stream</param>
/// <param name="encoding">The character encoding object used to decode strings from stream</param>
public BigEndianBinaryReader(IStreamAdapter input, Encoding encoding): base(input, encoding)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="BinaryReaderBase"/> class based on the supplied stream and using default encoding <see cref="UTF8Encoding"/>.
/// </summary>
/// <param name="input">Input stream</param>
protected BinaryReaderBase(IStreamAdapter input): this(input, _defaultEncoding)
{
}
