Class FrameBuilder

  • Direct Known Subclasses:
    SslEngineFrameBuilder

    public class FrameBuilder
    extends Object
    Class to create AMQP frames from a ReadableByteChannel. Supports partial frames: a frame can be read in several attempts from the NioLoop. This can happen when the channel won't read any more bytes in the middle of a frame building. The state of the outstanding frame is saved up, and the builder will start where it left off when the NioLoop comes back to this connection. This class is not thread safe.
    Since:
    4.4.0
    • Method Detail

      • readFrame

        public Frame readFrame()
                        throws IOException
        Read a frame from the network. This method returns null f a frame could not have been fully built from the network. The client must then retry later (typically when the channel notifies it has something to read).
        Returns:
        a complete frame or null if a frame couldn't have been fully built
        Throws:
        IOException
        See Also:
        Frame.readFrom(DataInputStream)
      • somethingToRead

        protected boolean somethingToRead()
                                   throws IOException
        Tells whether there's something to read in the application buffer or not. Tries to read from the network if necessary.
        Returns:
        true if there's something to read in the application buffer
        Throws:
        IOException
      • isUnderflowHandlingEnabled

        public boolean isUnderflowHandlingEnabled()