Examples with AsyncChannelPromise org.apache.cassandra.net.AsyncChannelPromise used on opensource projects

Example 1 with AsyncChannelPromise

use of org.apache.cassandra.net.AsyncChannelPromise in project cassandra by apache.

the class NettyStreamingChannel method send.

public Future<?> send(Send send) {
    class Factory implements IntFunction<StreamingDataOutputPlus> {

        ByteBuf buf;

        ByteBuffer buffer;

        @Override
        public StreamingDataOutputPlus apply(int size) {
            buf = GlobalBufferPoolAllocator.instance.buffer(size);
            buffer = buf.nioBuffer(buf.writerIndex(), size);
            return new StreamingDataOutputPlusFixed(buffer);
        }
    }
    Factory factory = new Factory();
    try {
        send.send(factory);
        ByteBuf buf = factory.buf;
        ByteBuffer buffer = factory.buffer;
        try {
            assert buffer.position() == buffer.limit();
            buf.writerIndex(buffer.position());
            AsyncChannelPromise promise = new AsyncChannelPromise(channel);
            channel.writeAndFlush(buf, promise);
            return promise;
        } catch (Throwable t) {
            buf.release();
            throw t;
        }
    } catch (Throwable t) {
        return ImmediateFuture.failure(t);
    }
}