s:graphicImage and s:transformImage VERY, VERY slow

[wquraishi]

I've got an object of blog which contains a collection of blog_photos. The blog_photos are persisted in a mysql db as binary data. This works great. When I render the view, the s:graphicImage takes an enormous amount of time to render. At first, I thought, it was the transform but that only adds a second. Here's the code:

<rich:dataGrid value="#{blog.photo}" var="blogPhoto"
 columns="3">
 <rich:panel rendered="#{blogPhoto ne null}">
 <s:graphicImage value="#{blogPhoto.data}"
 style="border: 1px;"
 rendered="#{blogPhoto ne null}" styleClass="boxed">
 <s:transformImageSize height="97" maintainRatio="true" />
 </s:graphicImage>
 <rich:toolTip followMouse="true" direction="top-right"
 value="#{blogPhoto.photoDescription}" horizontalOffset="-50"
 verticalOffset="5">
 <s:graphicImage value="#{blogPhoto.data}"
 style="border: 1px;"
 rendered="#{blogPhoto ne null}" styleClass="boxed">
 <s:transformImageSize height="450" maintainRatio="true" />
 </s:graphicImage>
 </rich:toolTip>
 </rich:panel>
 </rich:dataGrid>


I'm sure this is the cause b/c when I comment out the code, the page renders in a second. With 12 images or so, i takes about 12 seconds.

Thanks for your help.

[wquraishi]

I'm sorry I forgot my question. Is there a bug with s:graphicImage in terms of excessive load time and memory usage? If so, are there any other alternatives now that I've already persisted the binary data to table?

[pmuir]

If you can pin it down to a specific problem please report a JIRA issue. You can alternatively try rendering the image using a custom servlet. It would be interesting to know if you find this a lot faster.

[wquraishi]

have you tried using the s:graphicImage on a page where there were 10 or so images? did you see the degradation in terms of time to render the page?

the bottleneck isn't the database as i previously stated, when i comment ou the s:graphicImage in my xhtml page, the page renders immediately.

[wquraishi]

one more thing...how would i use a custom servlet. since the data is just a byte[]?

[pmuir]

No I haven't looked at this in any detail. Take a look at the seamspace example for how to use a custom servlet.