Class BigIntegerDecoder

All Implemented Interfaces:
ChannelHandler, ChannelUpstreamHandler, LifeCycleAwareChannelHandler

public class BigIntegerDecoder extends FrameDecoder
Decodes the binary representation of a BigInteger prepended with a magic number ('F' or 0x46) and a 32-bit integer length prefix into a BigInteger instance. For example, { 'F', 0, 0, 0, 1, 42 } will be decoded into new BigInteger("42").
  • Constructor Details

    • BigIntegerDecoder

      public BigIntegerDecoder()
  • Method Details

    • decode

      protected Object decode(ChannelHandlerContext ctx, Channel channel, ChannelBuffer buffer) throws Exception
      Description copied from class: FrameDecoder
      Decodes the received packets so far into a frame. If an sub-class wants to extract a frame out of the buffer it should use the FrameDecoder.extractFrame(ChannelBuffer, int, int) method, to make optimizations easier later.
      Specified by:
      decode in class FrameDecoder
      Parameters:
      ctx - the context of this handler
      channel - the current channel
      buffer - the cumulative buffer of received packets so far. Note that the buffer might be empty, which means you should not make an assumption that the buffer contains at least one byte in your decoder implementation.
      Returns:
      the decoded frame if a full frame was received and decoded. null if there's not enough data in the buffer to decode a frame.
      Throws:
      Exception