I added a section "Registering and Using the Image Resource" that documents how to register and use the ImageResource.
On Fri, 2006-05-05 at 09:00 -0700, Igor Vaynberg wrote:
> this is already described in philip's wiki article under download
> image section
>
> what you want is a stripped down version of the image resource:
>
> public class ImageResource extends DynamicWebResource
> {
>
> // CONSTANTS
>
> public static final Log logger = LogFactory.getLog(ImageResource.class);
>
> private static final long serialVersionUID = 1L;
>
> // CONSTRUCTORS
>
> public ImageResource()
> {
>
> super();
> }
>
> public ImageResource(Locale local)
> {
> super(local);
> }
>
> // METHODS
>
> // MEMBERS
>
> @Override
> protected ResourceState getResourceState()
>
> {
> ValueMap params = getParameters();
>
> String imageId=params.get("id");
> byte[] data=loadImageData(id);
> Date lastModified=
> getImageLastMod(id);
>
> ImageResourceState state =
> new ImageResourceState(Time.valueOf(lastModified));
> state.setContentType(imageEntry.getContentType
> ());
> state.setData(imageService.getImage(imageEntry));
>
> return state;
> }
>
> class ImageResourceState extends ResourceState
> {
> // CONSTRUCTORS
>
> ImageResourceState(Time lastModified)
>
> {
> super();
> this.lastModified = lastModified;
> }
>
> // MEMBERS
>
> private String contentType;
> @Override
> public String getContentType()
>
> {
> return contentType;
> }
> void setContentType(String contentType)
> {
> this.contentType = contentType;
> }
>
> private byte[] data;
> @Override
>
> public byte[] getData()
> {
> return data;
> }
> void setData(byte[] data)
> {
> this.data = data;
> }
>
> @Override
> public int getLength()
>
> {
> return data.length;
> }
>
> private Time lastModified;
> @Override
> public Time lastModifiedTime()
> {
> return lastModified;
> }
>
>
> // METHODS
> }
> }
> then you register this as a shared resource and get a resource
> reference. then when you want to build a url for an image you do this
>
> ResourceReference imageResource=...
> String url=RequestCycle.get().urlFor(imageResource)+"?id="+id;
>
> hope this clears it up some more.
>
> -Igor
>
>
>
> hope this clears it up some more.
>
> On 5/5/06, Vincent Jenks <[EMAIL PROTECTED]> wrote:
> Hi Philip,
>
> Thanks so much for the sample code and wiki entry...it makes a
> lot of sense, however, it is a little bit of overkill for the
> app I built. You gave me a bazooka to take to a gun-fight!
>
> Really, what it comes down to is; I need to turn the byte
> array I'm pulling out of the file system and turn it into an
> image. The upload I already had one of my devs build was
> working fine and I'm not sure (for now anyways) we need your
> full-on image service.
>
> I'm googling around to see if I can figure out how to simply
> turn the byte array into an image I can display on a
> page...not something I'm familiar with. I couldn't gather
> from your example how this would be done, either.
>
> Thanks for the help!
>
>
> On 5/2/06, Philip A. Chapman <[EMAIL PROTECTED]> wrote:
>
> How was it? Do I need to make any edits to make it easier to
> understand?
>
>
> On Mon, 2006-05-01 at 11:28 -0600, Vincent Jenks wrote:
> > I'll read through this, thanks a ton!
> >
> > On 5/1/06, Philip A. Chapman <[EMAIL PROTECTED]> wrote:
> > Sorry for the delay, but I spent the time to create
> > a wiki page so that hopefully others can benefit
> > from what little I have to say on the subject:
> >
> > http://www.wicket-wiki.org.uk/wiki/index.php/UploadDownload
> >
> >
> > On Mon, 2006-05-01 at 08:01 -0700, Igor Vaynberg
> > wrote:
> > > yes, thats it.
> > >
> > > basically you would create a that resource that
> > > takes the filename/fileid/whatever off the url and
> > > streams the file. there is an example of this, i
> > > will ask one of my friends to post it here. stay
> > > tuned.
> > >
> > > -Igor
> > >
> > >
> > > On 5/1/06, Vincent Jenks
> > > <[EMAIL PROTECTED]> wrote:
> > > Did you mean to say DynamicWebResource?
> > >
> > > On 4/21/06, Johan Compagner
> > > <[EMAIL PROTECTED]> wrote:
> > > > you could save those images to a DB or
> > > to a working dir on the server.
> > > > Then have a DynamicByteArrayResource or
> > > the 1.2 one: WebDynamicResource to
> > > > load the image from the location you
> > > stored the image.
> > > >
> > > > johan
> > > >
> > > >
> > > > On 4/21/06, Steve Knight <
> > > [EMAIL PROTECTED]> wrote:
> > > > >
> > > > > I am creating a form that will allow
> > > users to upload image files that will
> > > > be displayed on other pages. How should
> > > I go about uploading the images so
> > > > that they can be used in Wicket Image
> > > components on the other pages? The
> > > > upload part is not problem, I just don't
> > > know where I should put them.
> > > > >
> > > > > On my view pages, I am using
> > > ThumbnailImageResource which takes a
> > > > WebResource in it's contructor to find
> > > the image. Where should I save the
> > > > images to make this work?
> > > > >
> > > > > Thanks.
> > > > >
> > > > >
> > > > > Steve
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> > >
> -------------------------------------------------------
> > > Using Tomcat but need to do more? Need to
> > > support web services, security?
> > > Get stuff done quickly with pre-integrated
> > > technology to make your job easier
> > > Download IBM WebSphere Application Server
> > > v.1.0.1 based on Apache Geronimo
> > >
> http://sel.as-us.falkag.net/sel?cmdlnk&kid0709&bid&3057&dat1642
> > > _______________________________________________
> > > Wicket-user mailing list
> > > [email protected]
> > >
> https://lists.sourceforge.net/lists/listinfo/wicket-user
> > >
> > --
> > Philip A. Chapman
> >
> > Desktop and Web Application Development:
> > Java, .NET, PostgreSQL, MySQL, MSSQL
> > Linux, Windows 2000, Windows XP
> >
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> --
> Philip A. Chapman
>
> Desktop and Web Application Development:
> Java, .NET, PostgreSQL, MySQL, MSSQL
> Linux, Windows 2000, Windows XP
>
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--
Philip A. Chapman
Desktop and Web Application Development:
Java, .NET, PostgreSQL, MySQL, MSSQL
Linux, Windows 2000, Windows XP
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