Open an iFS document in Java

Question

hi,
I have two questions:
1) I have a document in folder /public/docs
and i want to read its contents from a jsp file.
The only method i found in the javadoc is getDocumentContent that returns an InputStream. Still, it requires as a parameter a Document Object. How can i convert the String "/public/docs/a.txt" into a Document.
2) I create new documents from a jsp and are created successfully, but their type icon(in the container.jsp) is images/icons/16x16/invalid.gif. Why does it show the documents as invalid? If i make a local copy, the files have the contents i wanted.
this is the code:
LibrarySession ifsSession = login.getSession();
String text = "lala\nfoo";
DocumentDefinition dd = new DocumentDefinition(ifsSession);
dd.settAttribute("NAME", AttributeValue.newAttributeValue("lala.txt"));
dd.setContent(text);
Document doc = (Document)ifsSession.createPublicObject(dd);
DirectoryUser thisUser = ifsSession.getDirectoryUser();
PrimaryUserProfile pup = ifsSession.getPrimaryUserProfile(thisUser);
Folder hf = pup.getHomeFolder();
hf.addItem(doc);
thanks
loukas

Answer 1

seems to be a problem here.
i write:
<%@ page import = "oracle.ifs.adk.filesystem" %>
but the compiler:
Class oracle.ifs.adk.filesystem.IfsFileSystem not found in import.
any ideas?
loukas