Package deltix.qsrv.hf.stream

Class SortingMessageSource<T extends deltix.data.stream.TimeStampedMessage>

  • All Implemented Interfaces:
    deltix.data.stream.MessageSource<T>, deltix.util.concurrent.AbstractCursor, deltix.util.lang.Disposable, java.io.Closeable, java.lang.AutoCloseable
    public class SortingMessageSource<T extends deltix.data.stream.TimeStampedMessage>
extends java.lang.Object
implements deltix.data.stream.MessageSource<T>
    This class reorders messages coming from nested message source (in time order). This class should only be used in feed simulation mode - it introduces a latency when certain amount of input messages are accumulated to ensure proper order. FIXME: This class has severe problem: it doesn't copy messages when placing them in PQ. Thus it doesn't work with message source that reuses messages.

    • Constructor Summary

      Constructors 
      Constructor Description
      SortingMessageSource​(deltix.data.stream.MessageSource<T> delegate, long maxBufferDuration)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()  
      T getMessage()  
      boolean isAtEnd()  
      boolean next()  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • SortingMessageSource

        public SortingMessageSource​(deltix.data.stream.MessageSource<T> delegate,
                            long maxBufferDuration)
        Parameters:
        maxBufferDuration - specifies maximum anticipated delay of 'late' messages [in milliseconds]. For example, for RedSky feed messages may be delayed for up to 3 seconds.

    • Method Detail

      • next

        public boolean next()
        Specified by:
        next in interface deltix.util.concurrent.AbstractCursor

      • getMessage

        public T getMessage()
        Specified by:
        getMessage in interface deltix.data.stream.MessageSource<T extends deltix.data.stream.TimeStampedMessage>

      • isAtEnd

        public boolean isAtEnd()
        Specified by:
        isAtEnd in interface deltix.util.concurrent.AbstractCursor

      • close

        public void close()
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Specified by:
        close in interface deltix.util.lang.Disposable