org.spf4j.io.tcp.proxy

Interface Sniffer

public interface Sniffer

Author:

zoly

Method Summary

Modifier and Type	Method and Description
int	received(ByteBuffer data, int nrBytes) Invoked on data receive/transmission.
default IOException	received(IOException ex) Allows to intercept read errors and change/suppress them.

Method Detail

received

int received(ByteBuffer data,
             int nrBytes)

Invoked on data receive/transmission.

Parameters:

data - - the byte buffer containing the data.

nrBytes - - number of bytes in the buffer. The data in the buffer is from position-nrBytes to position. nrBytes will be -1 on EOF.

Returns:

new nrReadValue if we aim to mutate buffer, returning -1 will simulate a EOF.

received

@Nullable
default IOException received(IOException ex)

Allows to intercept read errors and change/suppress them.

Parameters:

ex -

Returns:

A exception you want to propagate, or null in case we do not want to propagate exception.