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

io.netty.buffer.ByteBuf.slice()
Returns a slice of this buffer's readable bytes. 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(buf.readerIndex(), buf.readableBytes())}. This method does not modify {@code readerIndex} or {@code writerIndex} ofthis buffer.

        encoderChannel.writeOutbound(Unpooled.wrappedBuffer(payload));
        ByteBuf compressedPayload = encoderChannel.readOutbound();


        BinaryWebSocketFrame compressedFrame = new BinaryWebSocketFrame(true,
                WebSocketExtension.RSV1 | WebSocketExtension.RSV3,
                compressedPayload.slice(0, compressedPayload.readableBytes() - 4));


        // execute
        decoderChannel.writeInbound(compressedFrame);
        BinaryWebSocketFrame uncompressedFrame = decoderChannel.readInbound();

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        byte[] payload = new byte[300];
        random.nextBytes(payload);


        encoderChannel.writeOutbound(Unpooled.wrappedBuffer(payload));
        ByteBuf compressedPayload = encoderChannel.readOutbound();
        compressedPayload = compressedPayload.slice(0, compressedPayload.readableBytes() - 4);


        int oneThird = compressedPayload.readableBytes() / 3;
        BinaryWebSocketFrame compressedFrame1 = new BinaryWebSocketFrame(false,
                WebSocketExtension.RSV1 | WebSocketExtension.RSV3,
                compressedPayload.slice(0, oneThird));

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        compressedPayload = compressedPayload.slice(0, compressedPayload.readableBytes() - 4);


        int oneThird = compressedPayload.readableBytes() / 3;
        BinaryWebSocketFrame compressedFrame1 = new BinaryWebSocketFrame(false,
                WebSocketExtension.RSV1 | WebSocketExtension.RSV3,
                compressedPayload.slice(0, oneThird));
        ContinuationWebSocketFrame compressedFrame2 = new ContinuationWebSocketFrame(false,
                WebSocketExtension.RSV3, compressedPayload.slice(oneThird, oneThird));
        ContinuationWebSocketFrame compressedFrame3 = new ContinuationWebSocketFrame(true,
                WebSocketExtension.RSV3, compressedPayload.slice(oneThird * 2,
                        compressedPayload.readableBytes() - oneThird * 2));

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        int oneThird = compressedPayload.readableBytes() / 3;
        BinaryWebSocketFrame compressedFrame1 = new BinaryWebSocketFrame(false,
                WebSocketExtension.RSV1 | WebSocketExtension.RSV3,
                compressedPayload.slice(0, oneThird));
        ContinuationWebSocketFrame compressedFrame2 = new ContinuationWebSocketFrame(false,
                WebSocketExtension.RSV3, compressedPayload.slice(oneThird, oneThird));
        ContinuationWebSocketFrame compressedFrame3 = new ContinuationWebSocketFrame(true,
                WebSocketExtension.RSV3, compressedPayload.slice(oneThird * 2,
                        compressedPayload.readableBytes() - oneThird * 2));


        // execute

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                WebSocketExtension.RSV1 | WebSocketExtension.RSV3,
                compressedPayload.slice(0, oneThird));
        ContinuationWebSocketFrame compressedFrame2 = new ContinuationWebSocketFrame(false,
                WebSocketExtension.RSV3, compressedPayload.slice(oneThird, oneThird));
        ContinuationWebSocketFrame compressedFrame3 = new ContinuationWebSocketFrame(true,
                WebSocketExtension.RSV3, compressedPayload.slice(oneThird * 2,
                        compressedPayload.readableBytes() - oneThird * 2));


        // execute
        decoderChannel.writeInbound(compressedFrame1.retain());
        decoderChannel.writeInbound(compressedFrame2.retain());

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        BinaryWebSocketFrame compressedFrame = new BinaryWebSocketFrame(true,
                WebSocketExtension.RSV1 | WebSocketExtension.RSV3,
                Unpooled.wrappedBuffer(
                        compressedPayload1,
                        compressedPayload2.slice(0, compressedPayload2.readableBytes() - 4)));


        // execute
        decoderChannel.writeInbound(compressedFrame);
        BinaryWebSocketFrame uncompressedFrame = decoderChannel.readInbound();

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                @Override
                public void run() {
                    for (int i = 0, nextStream = 3; i < numStreams; ++i, nextStream += 2) {
                        http2Client.encoder().writeHeaders(ctx(), nextStream, headers, 0,
                                (short) 16, false, 0, false, newPromise());
                        http2Client.encoder().writePing(ctx(), false, pingData.slice().retain(),
                                newPromise());
                        http2Client.encoder().writeData(ctx(), nextStream, data.slice().retain(),
                                0, true, newPromise());
                    }
                }

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        ByteBuf buf = ReferenceCountUtil.releaseLater(Unpooled.buffer(SPDY_HEADER_SIZE + length));
        encodeDataFrameHeader(buf, streamId, flags, length);
        for (int i = 0; i < 256; i ++) {
            buf.writeInt(RANDOM.nextInt());
        }
        delegate.readDataFrame(streamId, false, buf.slice(SPDY_HEADER_SIZE, length));
        replay(delegate);
        decoder.decode(buf);
        verify(delegate);
        assertFalse(buf.isReadable());
    }

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        try {
            bootstrapEnv(1);
            runInChannel(clientChannel, new Http2Runnable() {
                @Override
                public void run() {
                    frameWriter.writeData(ctx(), 0x7FFFFFFF, data.slice().retain(), 100, true, newPromise());
                    ctx().flush();
                }
            });
            awaitRequests();
            verify(serverListener).onDataRead(any(ChannelHandlerContext.class), eq(0x7FFFFFFF),

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        {
            throw new NullPointerException("Undefined message for discriminator " + discriminator + " in channel " + msg.channel());
        }
        A newMsg = clazz.newInstance();
        ctx.attr(INBOUNDPACKETTRACKER).get().set(new WeakReference<FMLProxyPacket>(msg));
        decodeInto(ctx, payload.slice(), newMsg);
        out.add(newMsg);
    }


    /**
     * Called to verify the message received. This can be used to hard disconnect in case of an unexpected packet,

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