@Override
public final void processNextInbound() throws Exception {
int preBuffered = _inPreBuffered;
Message msg;
_inPreBuffered = 0; // reset the preBuffer .. incase of exception
final int startPos = _inHdrLen + preBuffered;
_inByteBuffer.limit(_inByteBuffer.capacity());
_inByteBuffer.position(startPos);
final int bytesRead = initialChannelRead(preBuffered, MIN_BYTES);
if (bytesRead == 0) {
_inPreBuffered = preBuffered;
return;
}
// time starts from when we have read the full message off the socket
if (_logStats) _decoder.setReceived(Utils.nanoTime());
_inByteBuffer.position(_inHdrLen);
final int maxIdx = _inHdrLen + bytesRead;
_inByteBuffer.limit(maxIdx);
if (_stopping) return;
_inLogBuf.setLength(maxIdx);
msg = decode(_inHdrLen, bytesRead);
final int msgLen = _decoder.getLength();
int extraBytes = bytesRead;
if (msg != null) {
extraBytes = bytesRead - msgLen;
logInEvent(null);
logInEventPojo(msg);
// message decoded, shift left any extra bytes before invoke controller as that can throw
// exception .. avoids extra try-finally
invokeController(msg);
} else {
// no partial messages in UDP ... could also be duplicate in any case discard
extraBytes = 0;
}
if (extraBytes > 0) {
_inPreBuffered = extraBytes;
final int nextMsgStart = _inHdrLen + msgLen;
shiftInBufferLeft(extraBytes, nextMsgStart);
}
}
