Examples of io.netty.channel.ChannelFutureListener

io.netty.channel.ChannelFutureListener
Listens to the result of a {@link ChannelFuture}. The result of the asynchronous {@link Channel} I/O operation is notified once this listeneris added by calling {@link ChannelFuture#addListener(GenericFutureListener)}.
Return the control to the caller quickly
{@link #operationComplete(Future)} 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.


            try {
                FileRegion fileRegion =
                        new OneMessageTransfer(response.encodeHeader(selectMapedBufferResult.getSize()),
                            selectMapedBufferResult);
                ctx.channel().writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                    @Override
                    public void operationComplete(ChannelFuture future) throws Exception {
                        selectMapedBufferResult.release();
                        if (!future.isSuccess()) {
                            log.error("transfer one message by pagecache failed, ", future.cause());

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                    if (response != null) {
                        response.setOpaque(request.getOpaque());
                        response.markResponseType();
                        try {
                            channel.writeAndFlush(response).addListener(new ChannelFutureListener() {
                                @Override
                                public void operationComplete(ChannelFuture future) throws Exception {
                                    if (!future.isSuccess()) {
                                        log.error("processRequestWrapper response to "
                                                + future.channel().remoteAddress() + " failed",

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            case ResponseCode.SUCCESS_VALUE:
                try {
                    FileRegion fileRegion =
                            new ManyMessageTransfer(response.encodeHeader(getMessageResult
                                .getBufferTotalSize()), getMessageResult);
                    channel.writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                        @Override
                        public void operationComplete(ChannelFuture future) throws Exception {
                            getMessageResult.release();
                            if (!future.isSuccess()) {
                                log.error(

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        try {
            FileRegion fileRegion =
                    new OneMessageTransfer(request.encodeHeader(selectMapedBufferResult.getSize()),
                        selectMapedBufferResult);
            channel.writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    selectMapedBufferResult.release();
                    if (!future.isSuccess()) {
                        log.error("invokeProducer failed,", future.cause());

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                    if (response != null) {
                        response.setOpaque(request.getOpaque());
                        response.markResponseType();
                        try {
                            channel.writeAndFlush(response).addListener(new ChannelFutureListener() {
                                @Override
                                public void operationComplete(ChannelFuture future) throws Exception {
                                    if (!future.isSuccess()) {
                                        log.error("processRequestWrapper response to "
                                                + future.channel().remoteAddress() + " failed",

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            case ResponseCode.SUCCESS:
                try {
                    FileRegion fileRegion =
                            new ManyMessageTransfer(response.encodeHeader(getMessageResult
                                .getBufferTotalSize()), getMessageResult);
                    channel.writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                        @Override
                        public void operationComplete(ChannelFuture future) throws Exception {
                            getMessageResult.release();
                            if (!future.isSuccess()) {
                                log.error(

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        this.pairedChannel = pairedChannel;
        config = new DefaultChannelConfig();


        // TODO Move the state variable to AbstractChannel so that we don't need
        //      to add many listeners.
        getCloseFuture().addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                state.set(ST_CLOSED);
            }
        });

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        if (footer != null) {
            Channels.write(ctx, future, footer);
        }


        if (evt != null) {
            future.addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    ctx.sendDownstream(evt);
                }
            });

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            SocketAddress remoteAddress) {
        try {
            if (channel.channel.connect(remoteAddress)) {
                channel.worker.register(channel, cf);
            } else {
                channel.getCloseFuture().addListener(new ChannelFutureListener() {
                    @Override
                    public void operationComplete(ChannelFuture f)
                            throws Exception {
                        if (!cf.isDone()) {
                            cf.setFailure(new ClosedChannelException());

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                            .addLast("encoder", new HttpResponseEncoder())
                            .addLast("chunked-writer", new ChunkedWriteHandler())
                            .addLast("asciidoctor", new AsciidoctorHandler(workDir, defaultPage));
                    }
                })
                .bind(HOST, port).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(final ChannelFuture future) throws Exception {
                    if (!future.isSuccess()) {
                        logger.error("Can't start HTTP server");
                    } else {

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Examples of io.netty.channel.ChannelFutureListener

Return the control to the caller quickly

Related Classes of io.netty.channel.ChannelFutureListener