How to upload a File to Google Docs when you can't create a File in Google App Engine!

UploadFileToGoogleDocs.java

import com.google.gdata.client.docs.DocsService;
import com.google.gdata.data.MediaContent;
import com.google.gdata.data.PlainTextConstruct;
import com.google.gdata.data.docs.DocumentListEntry;
import com.google.gdata.data.docs.DocumentListEntry.MediaType;
import com.google.gdata.data.media.MediaByteArraySource;
import com.google.gdata.data.media.MediaSource;
import com.google.gdata.util.ContentType;

// ...skipping to the good part...

DocsService docsService = new DocsService("myname-webapp-1.0");

// Authenticate our direct user access (using direct login credentials)
docsService.setUserCredentials(MY_USER_NAME, MY_PASSWORD);

DocumentListEntry newDocument = new DocumentListEntry();

// Load the byte array into a MediaSource
MediaByteArraySource mediaSource = new MediaByteArraySource(byteData, MediaType.fromFileName(myFileName).getMimeType());
MediaContent content = new MediaContent();
content.setMediaSource(mediaSource);
content.setMimeType(new ContentType(mediaSource.getContentType()));
newDocument.setContent(content);

String gdocsFilename = new String("My Filename");
newDocument.setTitle(new PlainTextConstruct(gdocsFilename));
			
// Push it into Google Docs!!
DocumentListEntry uploadedRef = docsService.insert(new URL("https://docs.google.com/feeds/default/private/full/"), newDocument);