Examples of io.netty.handler.stream.ChunkedFile

io.netty.handler.stream.ChunkedFile
kipedia.org/wiki/Zero-copy">zero-copy file transfer such as {@code sendfile()}, you might want to use {@link FileRegion} instead.

        if (response.getChannel().pipeline().get(SslHandler.class) == null) {
            response.writeFileRegion(new DefaultFileRegion(raf.getChannel(), 0, fileLength));
        }
        else {
            try {
                response.writeChunkedInput(new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, CHUNK_SIZE)));
            } catch (IOException e) {
                logger.warn("Failed to write chunked file {}", e);
                return Observable.error(e);
            }
        }

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        // Write the initial line and the header.
        ctx.write(response);


        // Write the content.
        ChannelFuture writeFuture = ctx.write(new ChunkedFile(raf, 0, fileLength, 8192));


        // Decide whether to close the connection or not.
        if (!isKeepAlive(request)) {
            // Close the connection when the whole content is written out.
            writeFuture.addListener(ChannelFutureListener.CLOSE);

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        // Write the content.
        ChannelFuture writeFuture;
        if (ch.getPipeline().get(SslHandler.class) != null) {
            // Cannot use zero-copy with HTTPS.
            writeFuture = ch.write(new ChunkedFile(raf, 0, fileLength, 8192));
        } else {
            // No encryption - use zero-copy.
            final FileRegion region =
                new DefaultFileRegion(raf.getChannel(), 0, fileLength);
            writeFuture = ch.write(region);

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        if (ctx.pipeline().get(SslHandler.class) == null) {
            sendFileFuture =
                    ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength), ctx.newProgressivePromise());
        } else {
            sendFileFuture =
                    ctx.write(new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)),
                            ctx.newProgressivePromise());
        }


        sendFileFuture.addListener(new ChannelProgressiveFutureListener() {
            @Override

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    if (useSendFile) {
      sendFileFuture =
        ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength), ctx.newProgressivePromise());
    } else {
      sendFileFuture =
        ctx.write(new ChunkedFile(raf, 0, fileLength, 8192), ctx.newProgressivePromise());
    }


    sendFileFuture.addListener(new ChannelProgressiveFutureListener() {
      @Override
      public void operationProgressed(ChannelProgressiveFuture future, long progress, long total) {

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    if (useSendFile) {
      sendFileFuture =
        ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength), ctx.newProgressivePromise());
    } else {
      sendFileFuture =
        ctx.write(new ChunkedFile(raf, 0, fileLength, 8192), ctx.newProgressivePromise());
    }


    sendFileFuture.addListener(new ChannelProgressiveFutureListener() {
      @Override
      public void operationProgressed(ChannelProgressiveFuture future, long progress, long total) {

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        if (ctx.pipeline().get(SslHandler.class) == null) {
            sendFileFuture =
                    ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength), ctx.newProgressivePromise());
        } else {
            sendFileFuture =
                    ctx.write(new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)),
                            ctx.newProgressivePromise());
        }


        sendFileFuture.addListener(new ChannelProgressiveFutureListener() {
            @Override

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        if (ctx.pipeline().get(SslHandler.class) == null) {
            // SSL not enabled - can use zero-copy file transfer.
            ctx.write(new DefaultFileRegion(raf.getChannel(), 0, length));
        } else {
            // SSL enabled - cannot use zero-copy file transfer.
            ctx.write(new ChunkedFile(raf));
        }
        ctx.writeAndFlush("\n");
    }

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      // Write the content.
      ChannelFuture writeFuture;
      if (!supportsFileRegion()) {
        // Cannot use zero-copy
        writeFuture = writeToChannel(new ChunkedFile(raf, 0, fileLength, 8192));
      } else {
        // No encryption - use zero-copy.
        final FileRegion region =
            new DefaultFileRegion(raf.getChannel(), 0, fileLength);
        writeFuture = writeToChannel(region);

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    } else if (obj instanceof WebSocketFrame) {
      return ((WebSocketFrame) obj).binaryData().length();
    } else if (obj instanceof FileRegion) {
      return ((FileRegion) obj).count();
    } else if (obj instanceof ChunkedFile) {
      ChunkedFile file = (ChunkedFile) obj;
      return file.endOffset() - file.startOffset();
    } else {
      return -1;
    }
  }

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