private WriteFuture initiateClosure(NextFilter nextFilter, IoSession session)
throws SSLException {
SslHandler handler = getSslSessionHandler(session);
// if already shut down
if (!handler.closeOutbound()) {
return DefaultWriteFuture.newNotWrittenFuture(
session, new IllegalStateException("SSL session is shut down already."));
}
// there might be data to write out here?
WriteFuture future = handler.writeNetBuffer(nextFilter);
if (future == null) {
future = DefaultWriteFuture.newWrittenFuture(session);
}
if (handler.isInboundDone()) {
handler.destroy();
}
if (session.containsAttribute(USE_NOTIFICATION)) {
handler.scheduleMessageReceived(nextFilter, SESSION_UNSECURED);
}
return future;
}
public WriteFuture flush() {
Queue<Object> bufferQueue = getMessageQueue();
WriteFuture future = null;
for (; ; ) {
Object encodedMessage = bufferQueue.poll();
if (encodedMessage == null) {
break;
}
// Flush only when the buffer has remaining.
if (!(encodedMessage instanceof IoBuffer) || ((IoBuffer) encodedMessage).hasRemaining()) {
future = new DefaultWriteFuture(session);
nextFilter.filterWrite(
session,
new EncodedWriteRequest(encodedMessage, future, writeRequest.getDestination()));
}
}
if (future == null) {
future =
DefaultWriteFuture.newNotWrittenFuture(
session, new NothingWrittenException(writeRequest));
}
return future;
}