Package io.undertow.server.protocol.framed

Examples of io.undertow.server.protocol.framed.SendFrameHeader

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    @Override
    public boolean insertFrame(SpdyStreamSinkChannel newFrame, List<SpdyStreamSinkChannel> pendingFrames) {
        //first deal with flow control
        if(newFrame instanceof SpdyStreamStreamSinkChannel) {
            SendFrameHeader header = ((SpdyStreamStreamSinkChannel) newFrame).generateSendFrameHeader();
            //if no header is generated then flow control means we can't send anything
            if(header.getByteBuffer() == null) {
                //we clear the header, as we want to generate a new real header when the flow control window is updated
                ((SpdyStreamStreamSinkChannel) newFrame).clearHeader();
                return false;
            }
        }
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    public void frameAdded(SpdyStreamSinkChannel addedFrame, List<SpdyStreamSinkChannel> pendingFrames, Deque<SpdyStreamSinkChannel> holdFrames) {
        Iterator<SpdyStreamSinkChannel> it = holdFrames.iterator();
        while (it.hasNext()){
            SpdyStreamSinkChannel pending = it.next();
            if(pending instanceof SpdyStreamStreamSinkChannel) {
                SendFrameHeader header = ((SpdyStreamStreamSinkChannel) pending).generateSendFrameHeader();
                if(header.getByteBuffer() != null) {
                    pendingFrames.add(pending);
                    it.remove();
                } else {
                    //we clear the header, as we want to generate a new real header when the flow control window is updated
                    ((SpdyStreamStreamSinkChannel) pending).clearHeader();
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        SpdyProtocolUtils.putInt(buf, firstInt);
        SpdyProtocolUtils.putInt(buf, 8);
        SpdyProtocolUtils.putInt(buf, lastGoodStreamId);
        SpdyProtocolUtils.putInt(buf, status);
        buf.flip();
        return new SendFrameHeader( new ImmediatePooled<>(buf));
    }
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        int firstInt = SpdyChannel.CONTROL_FRAME | (getChannel().getSpdyVersion() << 16) | SpdyChannel.PING;
        SpdyProtocolUtils.putInt(buf, firstInt);
        SpdyProtocolUtils.putInt(buf, 4); //we back fill the length
        SpdyProtocolUtils.putInt(buf, id);
        return new SendFrameHeader(new ImmediatePooled<>(buf));
    }
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    @Override
    protected SendFrameHeader createFrameHeaderImpl() {
        final int fcWindow = grabFlowControlBytes(getBuffer().remaining());
        if (fcWindow == 0 && getBuffer().hasRemaining()) {
            //flow control window is exhausted
            return new SendFrameHeader(getBuffer().remaining(), null);
        }
        Pooled<ByteBuffer> firstHeaderBuffer = getChannel().getBufferPool().allocate();
        Pooled<ByteBuffer>[] allHeaderBuffers = null;
        ByteBuffer firstBuffer = firstHeaderBuffer.getResource();
        if (first) {

            first = false;
            int firstInt = SpdyChannel.CONTROL_FRAME | (getChannel().getSpdyVersion() << 16) | 2;
            SpdyProtocolUtils.putInt(firstBuffer, firstInt);
            SpdyProtocolUtils.putInt(firstBuffer, 0); //we back fill the length
            HeaderMap headers = this.headers;

            SpdyProtocolUtils.putInt(firstBuffer, getStreamId());


            headers.remove(Headers.CONNECTION); //todo: should this be here?
            headers.remove(Headers.KEEP_ALIVE);
            headers.remove(Headers.TRANSFER_ENCODING);

            allHeaderBuffers = createHeaderBlock(firstHeaderBuffer, allHeaderBuffers, firstBuffer, headers);
        }

        Pooled<ByteBuffer> currentPooled = allHeaderBuffers == null ? firstHeaderBuffer : allHeaderBuffers[allHeaderBuffers.length - 1];
        ByteBuffer currentBuffer = currentPooled.getResource();
        int remainingInBuffer = 0;
        if (getBuffer().remaining() > 0) {
            if (fcWindow > 0) {
                //make sure we have room in the header buffer
                if(currentBuffer.remaining() < 8) {
                    allHeaderBuffers = createHeaderBlock(firstHeaderBuffer, allHeaderBuffers, firstBuffer, headers);
                    currentPooled = allHeaderBuffers == null ? firstHeaderBuffer : allHeaderBuffers[allHeaderBuffers.length - 1];
                    currentBuffer = currentPooled.getResource();
                }
                remainingInBuffer = getBuffer().remaining() - fcWindow;
                getBuffer().limit(getBuffer().position() + fcWindow);
                SpdyProtocolUtils.putInt(currentBuffer, getStreamId());
                SpdyProtocolUtils.putInt(currentBuffer, ((isWritesShutdown() ? SpdyChannel.FLAG_FIN : 0) << 24) + fcWindow);
            } else {
                remainingInBuffer = getBuffer().remaining();
            }
        }
        if (allHeaderBuffers == null) {
            //only one buffer required
            currentBuffer.flip();
            return new SendFrameHeader(remainingInBuffer, currentPooled);
        } else {
            //headers were too big to fit in one buffer
            //for now we will just copy them into a big buffer
            int length = 0;
            for (int i = 0; i < allHeaderBuffers.length; ++i) {
                length += allHeaderBuffers[i].getResource().position();
                allHeaderBuffers[i].getResource().flip();
            }
            try {
                ByteBuffer newBuf = ByteBuffer.allocate(length);

                for (int i = 0; i < allHeaderBuffers.length; ++i) {
                    newBuf.put(allHeaderBuffers[i].getResource());
                }
                newBuf.flip();
                return new SendFrameHeader(remainingInBuffer, new ImmediatePooled<ByteBuffer>(newBuf));
            } finally {
                //the allocate can oome
                for (int i = 0; i < allHeaderBuffers.length; ++i) {
                    allHeaderBuffers[i].free();
                }
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        this.header = null;
    }

    @Override
    protected final SendFrameHeader createFrameHeader() {
        SendFrameHeader header = this.header;
        this.header = null;
        return header;
    }
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        SpdyProtocolUtils.putInt(buf, firstInt);
        SpdyProtocolUtils.putInt(buf, 8);
        SpdyProtocolUtils.putInt(buf, streamId);
        SpdyProtocolUtils.putInt(buf, statusCode);
        buf.flip();
        return new SendFrameHeader(new ImmediatePooled<>(buf));
    }
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        SpdyProtocolUtils.putInt(buf, firstInt);
        SpdyProtocolUtils.putInt(buf, 8);
        SpdyProtocolUtils.putInt(buf, streamId);
        SpdyProtocolUtils.putInt(buf, deltaWindowSize);
        buf.flip();
        return new SendFrameHeader(new ImmediatePooled<>(buf));
    }
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    @Override
    protected SendFrameHeader createFrameHeaderImpl() {

        int fcWindow = grabFlowControlBytes(getBuffer().remaining());
        if (fcWindow == 0 && getBuffer().hasRemaining()) {
            return new SendFrameHeader(getBuffer().remaining(), null);
        }
        Pooled<ByteBuffer> firstHeaderBuffer = getChannel().getBufferPool().allocate();
        Pooled<ByteBuffer>[] allHeaderBuffers = null;
        ByteBuffer firstBuffer = firstHeaderBuffer.getResource();
        if (first) {

            first = false;
            int firstInt = SpdyChannel.CONTROL_FRAME | (getChannel().getSpdyVersion() << 16) | 1;
            SpdyProtocolUtils.putInt(firstBuffer, firstInt);
            SpdyProtocolUtils.putInt(firstBuffer, 0); //we back fill the length
            HeaderMap headers = this.headers;

            SpdyProtocolUtils.putInt(firstBuffer, getStreamId());
            SpdyProtocolUtils.putInt(firstBuffer, 0);
            firstBuffer.put((byte) 0);
            firstBuffer.put((byte) 0);


            headers.remove(Headers.CONNECTION); //todo: should this be here?
            headers.remove(Headers.KEEP_ALIVE);
            headers.remove(Headers.TRANSFER_ENCODING);

            allHeaderBuffers = createHeaderBlock(firstHeaderBuffer, allHeaderBuffers, firstBuffer, headers);
        }
        Pooled<ByteBuffer> currentPooled = allHeaderBuffers == null ? firstHeaderBuffer : allHeaderBuffers[allHeaderBuffers.length - 1];
        ByteBuffer currentBuffer = currentPooled.getResource();
        int remainingInBuffer = 0;
        if (getBuffer().remaining() > 0) {
            remainingInBuffer = getBuffer().remaining() - fcWindow;
            getBuffer().limit(getBuffer().position() + fcWindow);
            if (currentBuffer.remaining() < 8) {
                allHeaderBuffers = allocateAll(allHeaderBuffers, currentPooled);
                currentPooled = allHeaderBuffers[allHeaderBuffers.length - 1];
                currentBuffer = currentPooled.getResource();
            }
            SpdyProtocolUtils.putInt(currentBuffer, getStreamId());
            SpdyProtocolUtils.putInt(currentBuffer, ((isWritesShutdown() ? SpdyChannel.FLAG_FIN : 0) << 24) + fcWindow);
        }
        if (allHeaderBuffers == null) {
            //only one buffer required
            currentBuffer.flip();
            return new SendFrameHeader(remainingInBuffer, currentPooled);
        } else {
            //headers were too big to fit in one buffer
            //for now we will just copy them into a big buffer
            int length = 0;
            for (int i = 0; i < allHeaderBuffers.length; ++i) {
                length += allHeaderBuffers[i].getResource().position();
                allHeaderBuffers[i].getResource().flip();
            }
            try {
                ByteBuffer newBuf = ByteBuffer.allocate(length);
                for (int i = 0; i < allHeaderBuffers.length; ++i) {
                    newBuf.put(allHeaderBuffers[i].getResource());
                }
                newBuf.flip();
                return new SendFrameHeader(remainingInBuffer, new ImmediatePooled<ByteBuffer>(newBuf));
            } finally {
                //the allocate can oome
                for (int i = 0; i < allHeaderBuffers.length; ++i) {
                    allHeaderBuffers[i].free();
                }
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    @Override
    protected SendFrameHeader createFrameHeaderImpl() {
        final int fcWindow = grabFlowControlBytes(getBuffer().remaining());
        if (fcWindow == 0 && getBuffer().hasRemaining()) {
            //flow control window is exhausted
            return new SendFrameHeader(getBuffer().remaining(), null);
        }
        Pooled<ByteBuffer> firstHeaderBuffer = getChannel().getBufferPool().allocate();
        Pooled<ByteBuffer>[] allHeaderBuffers = null;
        ByteBuffer firstBuffer = firstHeaderBuffer.getResource();
        if (first) {

            first = false;
            int firstInt = SpdyChannel.CONTROL_FRAME | (getChannel().getSpdyVersion() << 16) | 2;
            SpdyProtocolUtils.putInt(firstBuffer, firstInt);
            SpdyProtocolUtils.putInt(firstBuffer, 0); //we back fill the length
            HeaderMap headers = this.headers;

            SpdyProtocolUtils.putInt(firstBuffer, getStreamId());


            headers.remove(Headers.CONNECTION); //todo: should this be here?
            headers.remove(Headers.KEEP_ALIVE);
            headers.remove(Headers.TRANSFER_ENCODING);

            allHeaderBuffers = createHeaderBlock(firstHeaderBuffer, allHeaderBuffers, firstBuffer, headers);
        }

        Pooled<ByteBuffer> currentPooled = allHeaderBuffers == null ? firstHeaderBuffer : allHeaderBuffers[allHeaderBuffers.length - 1];
        ByteBuffer currentBuffer = currentPooled.getResource();
        int remainingInBuffer = 0;
        if (getBuffer().remaining() > 0) {
            if (fcWindow > 0) {
                //make sure we have room in the header buffer
                if(currentBuffer.remaining() < 8) {
                    allHeaderBuffers = createHeaderBlock(firstHeaderBuffer, allHeaderBuffers, firstBuffer, headers);
                    currentPooled = allHeaderBuffers == null ? firstHeaderBuffer : allHeaderBuffers[allHeaderBuffers.length - 1];
                    currentBuffer = currentPooled.getResource();
                }
                remainingInBuffer = getBuffer().remaining() - fcWindow;
                getBuffer().limit(getBuffer().position() + fcWindow);
                SpdyProtocolUtils.putInt(currentBuffer, getStreamId());
                SpdyProtocolUtils.putInt(currentBuffer, ((isWritesShutdown() ? SpdyChannel.FLAG_FIN : 0) << 24) + fcWindow);
            } else {
                remainingInBuffer = getBuffer().remaining();
            }
        }
        if (allHeaderBuffers == null) {
            //only one buffer required
            currentBuffer.flip();
            return new SendFrameHeader(remainingInBuffer, currentPooled);
        } else {
            //headers were too big to fit in one buffer
            //for now we will just copy them into a big buffer
            int length = 0;
            for (int i = 0; i < allHeaderBuffers.length; ++i) {
                length += allHeaderBuffers[i].getResource().position();
                allHeaderBuffers[i].getResource().flip();
            }
            try {
                ByteBuffer newBuf = ByteBuffer.allocate(length);

                for (int i = 0; i < allHeaderBuffers.length; ++i) {
                    newBuf.put(allHeaderBuffers[i].getResource());
                }
                newBuf.flip();
                return new SendFrameHeader(remainingInBuffer, new ImmediatePooled<ByteBuffer>(newBuf));
            } finally {
                //the allocate can oome
                for (int i = 0; i < allHeaderBuffers.length; ++i) {
                    allHeaderBuffers[i].free();
                }
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