Examples of AMQMessageHandle

org.apache.qpid.server.queue.AMQMessageHandle
A pluggable way of getting message data. Implementations can provide intelligent caching for example or even no caching at all to minimise the broker memory footprint.

Examples of org.apache.qpid.server.queue.AMQMessageHandle

    {
        AMQBody deliverBody = createEncodedDeliverFrame(message, channelId, deliveryTag, consumerTag);
        final ContentHeaderBody contentHeaderBody = message.getContentHeaderBody();




        final AMQMessageHandle messageHandle = message.getMessageHandle();
        final StoreContext storeContext = message.getStoreContext();
        final Long messageId = message.getMessageId();


        final int bodyCount = messageHandle.getBodyCount(storeContext,messageId);


        if(bodyCount == 0)
        {
            SmallCompositeAMQBodyBlock compositeBlock = new SmallCompositeAMQBodyBlock(channelId, deliverBody,
                                                                             contentHeaderBody);


            writeFrame(compositeBlock);
        }
        else
        {




            //
            // Optimise the case where we have a single content body. In that case we create a composite block
            // so that we can writeDeliver out the deliver, header and body with a single network writeDeliver.
            //
            ContentChunk cb = messageHandle.getContentChunk(storeContext,messageId, 0);


            AMQBody firstContentBody = PROTOCOL_METHOD_CONVERTER.convertToBody(cb);


            CompositeAMQBodyBlock compositeBlock = new CompositeAMQBodyBlock(channelId, deliverBody, contentHeaderBody, firstContentBody);
            writeFrame(compositeBlock);


            //
            // Now start writing out the other content bodies
            //
            for(int i = 1; i < bodyCount; i++)
            {
                cb = messageHandle.getContentChunk(storeContext,messageId, i);
                writeFrame(new AMQFrame(channelId, PROTOCOL_METHOD_CONVERTER.convertToBody(cb)));
            }




        }

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Examples of org.apache.qpid.server.queue.AMQMessageHandle




    public void writeGetOk(AMQMessage message, int channelId, long deliveryTag, int queueSize) throws AMQException
    {


        final AMQMessageHandle messageHandle = message.getMessageHandle();
        final StoreContext storeContext = message.getStoreContext();
        final long messageId = message.getMessageId();


        AMQFrame deliver = createEncodedGetOkFrame(message, channelId, deliveryTag, queueSize);




        AMQDataBlock contentHeader = createContentHeaderBlock(channelId, message.getContentHeaderBody());


        final int bodyCount = messageHandle.getBodyCount(storeContext,messageId);
        if(bodyCount == 0)
        {
            SmallCompositeAMQDataBlock compositeBlock = new SmallCompositeAMQDataBlock(deliver,
                                                                             contentHeader);
            writeFrame(compositeBlock);
        }
        else
        {




            //
            // Optimise the case where we have a single content body. In that case we create a composite block
            // so that we can writeDeliver out the deliver, header and body with a single network writeDeliver.
            //
            ContentChunk cb = messageHandle.getContentChunk(storeContext,messageId, 0);


            AMQDataBlock firstContentBody = new AMQFrame(channelId, PROTOCOL_METHOD_CONVERTER.convertToBody(cb));
            AMQDataBlock[] blocks = new AMQDataBlock[]{deliver, contentHeader, firstContentBody};
            CompositeAMQDataBlock compositeBlock = new CompositeAMQDataBlock(blocks);
            writeFrame(compositeBlock);


            //
            // Now start writing out the other content bodies
            //
            for(int i = 1; i < bodyCount; i++)
            {
                cb = messageHandle.getContentChunk(storeContext, messageId, i);
                writeFrame(new AMQFrame(channelId, PROTOCOL_METHOD_CONVERTER.convertToBody(cb)));
            }




        }

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Examples of org.apache.qpid.server.queue.AMQMessageHandle


    private AMQBody createEncodedDeliverFrame(AMQMessage message, final int channelId, final long deliveryTag, final AMQShortString consumerTag)
            throws AMQException
    {
        final MessagePublishInfo pb = message.getMessagePublishInfo();
        final AMQMessageHandle messageHandle = message.getMessageHandle();




        final boolean isRedelivered = messageHandle.isRedelivered();
        final AMQShortString exchangeName = pb.getExchange();
        final AMQShortString routingKey = pb.getRoutingKey();


        final AMQBody returnBlock = new AMQBody()
        {

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Examples of org.apache.qpid.server.queue.AMQMessageHandle


    private AMQFrame createEncodedGetOkFrame(AMQMessage message, int channelId, long deliveryTag, int queueSize)
            throws AMQException
    {
        final MessagePublishInfo pb = message.getMessagePublishInfo();
        final AMQMessageHandle messageHandle = message.getMessageHandle();




        BasicGetOkBody getOkBody =
                METHOD_REGISTRY.createBasicGetOkBody(deliveryTag,
                                                    messageHandle.isRedelivered(),
                                                    pb.getExchange(),
                                                    pb.getRoutingKey(),
                                                    queueSize);
        AMQFrame getOkFrame = getOkBody.generateFrame(channelId);

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