How to forced JWS to download only jar we want

Question

Hi everybody !
In my application, which run from an ftp adress with Java Web Start, I load a main jar.
After, I will have the opportunity to load in the cache any secondary jar I want (those jar are not required by the application at the beginning) : I just want to click an a button to load the jar I want.
I try to put a download="lazy" in the jnlp file, but JWS still download the secondary jar after the application is loaded : it is possible to forced JWS to not download this secondary jar, in the optic to download it manually after ?
Thanks in advance !!!

Answer 1

You need more than download="lazy" in the jnlp..... You also need to specify part="{somthing}" ...for example (Taken from vamphq).
<jar href="skinlf.jar" download="lazy" part="skinlf"/>Then, in your client code, you need to explicitly instruct webstart to download this part - use the following (Modified from webstat developers guide):
DownloadService ds;
         try {
             ds = (DownloadService)ServiceManager.lookup("javax.jnlp.DownloadService");
         } catch (UnavailableServiceException e) {
             ds = null;
         if (ds != null) {
             try {
                 // determine if a particular resource is cached
                 boolean cached = ds.isPartCached("skinlf");
                 if (!cached) {
                 // Load the resource into the cache
                 DownloadServiceListener dsl = ds.getDefaultProgressWindow();
                 ds.loadPart("skinlf",dsl);
             } catch (Exception e) {
                 e.printStackTrace();
         } You cant put any references to any class in the java that you are downloading in this file... Because, it will crash with 'Class not found'. Instead, use reflection to dynamically load your class. Ie, instead of doing:
new org.me.DownloadedClass();do this instead
Class.forName("org.me.DownloadedClass").newInstance();Message was edited by:
tonywestonuk