Web Dynpro JAVA Application using to Upload and Download files KM of SAP Portal

Dear All

I have a requirement for client.Here 2 types of users available.User one upload the documents in KM using the WDJ application and same time that user can create the sub folder.once that folder is available in that upload the documents.This user is a admin type.An other user can see the document by using the WDJ application. this user is end user type and Read only.

->My question is by using the WDJ application to upload and download and creating the folders or sub folders in run time process.

I was checked this blow links but i am unable to get the information.

http://wiki.scn.sap.com/wiki/display/snippets/km+library+-+reusable+component+for+webdynpro+java?original_fqdn=wiki.sdn.sap.com&bc=true

http://scn.sap.com/people/rohit.radhakrishnan/blog/2005/05/27/uploading-files-to-km-repository-using-webdynpro-apis

Please any Code /Document available means share me.

Thank for advance,

BR,

Durga Rao.