Examples of ChannelFutureProgressListener

io.netty.channel.ChannelFutureProgressListener

Listens to the progress of a time-consuming I/O operation such as a large file transfer. If this listener is added to a {@link ChannelFuture} of anI/O operation that supports progress notification, the listener's {@link #operationProgressed(ChannelFuture,long,long,long)} method will becalled back by an I/O thread. If the operation does not support progress notification, {@link #operationProgressed(ChannelFuture,long,long,long)}will not be invoked. Like a usual {@link ChannelFutureListener} that thisinterface extends, {@link #operationComplete(ChannelFuture)} will be calledwhen the future is marked as complete.

Return the control to the caller quickly

{@link #operationProgressed(ChannelFuture,long,long,long)} and{@link #operationComplete(ChannelFuture)} is directly called by an I/Othread. Therefore, performing a time consuming task or a blocking operation in the handler method can cause an unexpected pause during I/O. If you need to perform a blocking operation on I/O completion, try to execute the operation in a different thread using a thread pool.

org.jboss.netty.channel.ChannelFutureProgressListener

Return the control to the caller quickly

        } else {
            // No encryption - use zero-copy.
            final FileRegion region =
                new DefaultFileRegion(raf.getChannel(), 0, fileLength);
            writeFuture = ch.write(region);
            writeFuture.addListener(new ChannelFutureProgressListener() {
                public void operationComplete(ChannelFuture future) {
                    region.releaseExternalResources();
                }


                public void operationProgressed(

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