question: public void readFrom ( ChannelBuffer data ) { this . wildcards = data . readInt ( ) ; this . inputPort = data . readShort ( ) ; this . dataLayerSource = new byte [ 6 ] ; data . readBytes ( this . dataLayerSource ) ; this . dataLayerDestination = new byte [ 6 ] ; data . readBytes ( this . dataLayerDestination ) ; this . dataLayerVirtualLan = data . readShort ( ) ; this . dataLayerVirtualLanPriorityCodePoint = data . readByte ( ) ; data . readByte ( ) ; this . dataLayerType = data . readShort ( ) ; this . networkTypeOfService = data . readByte ( ) ; this . networkProtocol = data . readByte ( ) ; data . readByte ( ) ; data . readByte ( ) ; this . networkSource = data . readInt ( ) ; this . networkDestination = data . readInt ( ) ; this . transportSource = data . readShort ( ) ; this . transportDestination = data . readShort ( ) ; }
target:  Read this message off the wire from the specified ByteBuffer