/**
* Dispose the encoder, removing its instance from the session's attributes, and calling the
* associated dispose method.
*/
private void disposeEncoder(IoSession session) {
ProtocolEncoder encoder = (ProtocolEncoder) session.removeAttribute(ENCODER);
if (encoder == null) {
return;
}
try {
encoder.dispose(session);
} catch (Throwable t) {
LOGGER.warn("Failed to dispose: " + encoder.getClass().getName() + " (" + encoder + ')');
}
}
@Override
public void filterWrite(NextFilter nextFilter, IoSession session, WriteRequest writeRequest)
throws Exception {
Object message = writeRequest.getMessage();
// Bypass the encoding if the message is contained in a IoBuffer,
// as it has already been encoded before
if (message instanceof IoBuffer || message instanceof FileRegion) {
nextFilter.filterWrite(session, writeRequest);
return;
}
// Get the encoder in the session
ProtocolEncoder encoder = getEncoder(session);
ProtocolEncoderOutput encoderOut = getEncoderOut(session, nextFilter, writeRequest);
try {
// Now we can try to encode the response
encoder.encode(session, message, encoderOut);
// Send it directly
((ProtocolEncoderOutputImpl) encoderOut).flushWithoutFuture();
// Call the next filter
nextFilter.filterWrite(session, new MessageWriteRequest(writeRequest));
} catch (Throwable t) {
ProtocolEncoderException pee;
// Generate the correct exception
if (t instanceof ProtocolEncoderException) {
pee = (ProtocolEncoderException) t;
} else {
pee = new ProtocolEncoderException(t);
}
throw pee;
}
}
