Hello,
I've made some tests, and I think I will change the documentation, as we
can have the same code in classic JVM, or GAE/servlet contexts:
In this sample code, we just send back the content of the "fileToUpload"
item.
@Post
public Representation accept(Representation entity) throws Exception {
Representation result = null;
if (entity != null) {
if (MediaType.MULTIPART_FORM_DATA.equals(entity.getMediaType(),
true)) {
// 1/ Create a factory for disk-based file items
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(1000240);
// 2/ Create a new file upload handler based on the Restlet
// FileUpload extension that will parse Restlet requests and
// generates FileItems.
RestletFileUpload upload = new RestletFileUpload(factory);
// 3/ Request is parsed by the handler which generates a
// list of FileItems
FileItemIterator fileIterator =
upload.getItemIterator(entity);
// Process only the uploaded item called "fileToUpload"
// an return back
boolean found = false;
while (fileIterator.hasNext() && !found) {
FileItemStream fi = fileIterator.next();
if (fi.getFieldName().equals("fileToUpload")) {
found = true;
// consume the stream immediately, otherwise the
stream
// will be closed.
StringBuilder sb = new StringBuilder("media type:
");
sb.append(fi.getContentType()).append("\n");
sb.append("file name : ");
sb.append(fi.getName()).append("\n");
BufferedReader br = new BufferedReader(
new InputStreamReader(fi.openStream()));
String line = null;
while ((line = br.readLine()) != null) {
sb.append(line);
}
sb.append("\n");
result = new StringRepresentation(sb.toString(),
MediaType.TEXT_PLAIN);
}
}
} else {
// POST request with no entity.
setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
}
}
return result;
}
Having said that, I think I will change the implementation of the
"RestletFileUpload#parseRequest" method in order to rely on the underlying
servlet, and remove the "RestletFileUpload#parseRepresentation" method.
Thanks a lot.
2015-01-16 11:41 GMT+01:00 Xybrek <[email protected]>:
> On Friday, 16 January, 2015 05:51 PM, Thierry Boileau wrote:
> > Hello,
> > I guess you are refering to this page of the user guide:
> >
> http://restlet.com/technical-resources/restlet-framework/guide/2.3/extensions/fileupload
> >
> > The code is exactly the same for the GAE edition, except that you cannot
> write File directly as is it forbidden by the GAE platform.
> >
> > You can still have access to the FileItem#getInputStream() method.
> >
> >
> > Best regards,
> > Thierry Boileau
> >
> > ------------------------------------------------------
> >
> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=3094350
> >
>
> Theierry,
>
> I am not sure but it seems the sample you gave throws error and we
> cannot use the repackaged apache package with Restlet.
>
> So I improvised, I manage to upload large files with Restlet and GAE
> with this code:
>
> @Override
> public void upload(Representation entity) throws Exception {
> if (entity != null) {
> if
> (MediaType.MULTIPART_FORM_DATA.equals(entity.getMediaType(), true)) {
> Request restletRequest = getRequest();
> HttpServletRequest servletRequest =
> ServletUtils.getRequest(restletRequest);
> ServletFileUpload upload = new ServletFileUpload();
> FileItemIterator fileIterator =
> upload.getItemIterator(servletRequest);
> while (fileIterator.hasNext()) {
> FileItemStream item = fileIterator.next();
> String name = item.getName();
> byte[] content =
> ByteStreams.toByteArray(item.openStream());
> // do stuff with content
> }
> } else {
> setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
> }
> } else {
> setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
> }
> }
>
> Perhaps you can share this with Restlet documentation so community would
> benefit to this code. Or perhaps you can see some issues with the code.
>
> ------------------------------------------------------
>
> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=3094355
>
--
*Thierry Boileau, Mr B*
+1 (408) 387-3184 • [email protected]
<http://restlet.com/>
6 Rue Rose Dieng-Kuntz • Nantes, 44300 • France
------------------------------------------------------
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