Examples of io.netty.buffer.ByteBuf.duplicate()

io.netty.buffer.ByteBuf.duplicate()
Returns a buffer which shares the whole region of this buffer. Modifying the content of the returned buffer or this buffer affects each other's content while they maintain separate indexes and marks. This method is identical to {@code buf.slice(0, buf.capacity())}. This method does not modify {@code readerIndex} or {@code writerIndex} ofthis buffer.

        DiskFileUpload upload = new DiskFileUpload(getName(),
                getFilename(), getContentType(), getContentTransferEncoding(), getCharset(), size);
        ByteBuf buf = content();
        if (buf != null) {
            try {
                upload.setContent(buf.duplicate());
            } catch (IOException e) {
                throw new ChannelException(e);
            }
        }
        return upload;

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        DiskAttribute attr = new DiskAttribute(getName());
        attr.setCharset(getCharset());
        ByteBuf content = content();
        if (content != null) {
            try {
                attr.setContent(content.duplicate());
            } catch (IOException e) {
                throw new ChannelException(e);
            }
        }
        return attr;

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        MemoryFileUpload upload = new MemoryFileUpload(getName(), getFilename(), getContentType(),
                getContentTransferEncoding(), getCharset(), size);
        ByteBuf buf = content();
        if (buf != null) {
            try {
                upload.setContent(buf.duplicate());
                return upload;
            } catch (IOException e) {
                throw new ChannelException(e);
            }
        }

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        MemoryAttribute attr = new MemoryAttribute(getName());
        attr.setCharset(getCharset());
        ByteBuf content = content();
        if (content != null) {
            try {
                attr.setContent(content.duplicate());
            } catch (IOException e) {
                throw new ChannelException(e);
            }
        }
        return attr;

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        final ByteBuf buf = Unpooled.copiedBuffer("your data",
                CharsetUtil.UTF_8);
        Runnable writer = new Runnable() {
            @Override
            public void run() {
                channel.write(buf.duplicate());
            }
        };
        Executor executor = Executors.newCachedThreadPool();


        // write in one thread

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                 public void initChannel(SocketChannel ch) 
                     throws Exception {
                     ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
                         @Override
                         public void channelActive(ChannelHandlerContext ctx) throws Exception {
                             ctx.write(buf.duplicate()).addListener(ChannelFutureListener.CLOSE);
                         }
                     });
                 }
             });
            ChannelFuture f = b.bind().sync();

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                 public void initChannel(SocketChannel ch) 
                     throws Exception {
                     ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
                         @Override
                         public void channelActive(ChannelHandlerContext ctx) throws Exception {
                             ctx.write(buf.duplicate()).addListener(ChannelFutureListener.CLOSE);
                         }
                     });
                 }
             });
            ChannelFuture f = b.bind().sync();

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        for (int i = 0; i < 256; i ++) {
            headerBlock.writeInt(RANDOM.nextInt());
        }


        delegate.readHeadersFrame(streamId, false);
        delegate.readHeaderBlock(headerBlock.duplicate());
        delegate.readHeaderBlockEnd();
        replay(delegate);
        decoder.decode(buf);
        decoder.decode(headerBlock);
        verify(delegate);

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        for (int i = 0; i < 256; i ++) {
            headerBlock.writeInt(RANDOM.nextInt());
        }


        delegate.readSynStreamFrame(streamId, associatedToStreamId, priority, false, false);
        delegate.readHeaderBlock(headerBlock.duplicate());
        delegate.readHeaderBlockEnd();
        replay(delegate);
        decoder.decode(buf);
        decoder.decode(headerBlock);
        verify(delegate);

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        for (int i = 0; i < 256; i ++) {
            headerBlock.writeInt(RANDOM.nextInt());
        }


        delegate.readSynReplyFrame(streamId, false);
        delegate.readHeaderBlock(headerBlock.duplicate());
        delegate.readHeaderBlockEnd();
        replay(delegate);
        decoder.decode(buf);
        decoder.decode(headerBlock);
        verify(delegate);

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