@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
Throwable cause = e.getCause();
if (cause instanceof IOException) {
if (cause instanceof ClosedChannelException) {
synchronized (ignoreClosedChannelExceptionLock) {
if (ignoreClosedChannelException > 0) {
ignoreClosedChannelException--;
logger.debug("Swallowing an exception raised while " + "writing non-app data", cause);
return;
}
}
} else if (engine.isOutboundDone()) {
String message = String.valueOf(cause.getMessage()).toLowerCase();
if (IGNORABLE_ERROR_MESSAGE.matcher(message).matches()) {
// It is safe to ignore the 'connection reset by peer' or
// 'broken pipe' error after sending closure_notify.
logger.debug(
"Swallowing a 'connection reset by peer / "
+ "broken pipe' error occurred while writing "
+ "'closure_notify'",
cause);
// Close the connection explicitly just in case the transport
// did not close the connection automatically.
Channels.close(ctx, succeededFuture(e.getChannel()));
return;
}
}
}
ctx.sendUpstream(e);
}
@Override
protected void notifyHandlerException(ChannelEvent e, Throwable t) {
while (t instanceof ChannelPipelineException && t.getCause() != null) {
t = t.getCause();
}
if (t instanceof CodecEmbedderException) {
throw (CodecEmbedderException) t;
} else {
throw new CodecEmbedderException(t);
}
}