[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-1592) <s:graphicImage> should accept raw byte[] without conversion

Sun Jul 1 21:05:57 EDT 2007

<s:graphicImage> should accept raw byte[] without conversion
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                 Key: JBSEAM-1592
                 URL: http://jira.jboss.com/jira/browse/JBSEAM-1592
             Project: JBoss Seam
          Issue Type: Feature Request
          Components: JSF
    Affects Versions: 2.0.0.BETA1, 1.3.0.ALPHA, 1.2.1.GA
         Environment: latest from repo 
            Reporter: Gena Batalski
            Priority: Minor

It would be helpful to feed the <s:graphicImage> with raw byte[] (possible also ByteArray - stream) without converting it to BufferedImage or something else. Also the content type could be manually  entered. Of course, its in the responsibility of the developer, to take care about the correctness of input. Optional attributes (forceContentType, forceImage or something else)  could do this job on the UI side.

Background of the request:

if i comment out the byte[] handling in Image.class (line 404 method readImage()) as in a following snipplet,  i get an expected quality. Otherwise, the image quality decreases significantly, especially for small images (icons, thumbnails).

 /*
            byte[] b = (byte[]) input;
            readImage(new ByteArrayInputStream(b));
            */

            output  = (byte[]) input;

I also would have some possibility, to prepare the image on demand. Currently i'm using two servlets: one SeamResource and one for my images. My servlet receives an URI and selects an image LOB from DB, because it isn't necessary to store the images in memory (they could be large) and the images could stay unrequested. What i need is some kind callback (converter?) which asks me for byte[] or stream representation of an image uri.

Thanks

Gena

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