Recommendation: Filter, Servlet or tag

[marius.oancea]

Hello,
I have a field read from db that contains some HTML and I have to display this field. The HTML contans things like : "..... ...". All images are in a db table with 3 fields:

id - e.g. ./MyImages/img1.jpg
mimetype
data (blob)


I see 3 ways to implement this:
- create a Filter that find all such img tags in the page and recognize the images starting with ./MyImages. The filter stores the images in the GraphicImageStore and replace the URL with the seam url to retrive the image from store.

- make a servlet mapped to "MyImages". Servlet will access the dao to retrieve the data from db.

- create a tag similar to seamtext that receive a text and make all the necesarry steps (parse, store imgs in ImageStore, replace the IMG tags with calls to the img store).

Any other

[damianharvey]

The servlet approach is easy. This 5 part tutorial is very good http://linuxbeans.blogspot.com/2007/10/image-handling-in-seam-apps-part-i-db.html

Cheers,

Damian.

[marius.oancea]

I've choosed servlet approach for now. It works.

For the ones interested, you can look in seam 2 in :
jboss-seam-2.0.0.GA\examples\seamspace\src\org\jboss\seam\example\seamspace\ContentServlet.java