File upload tomahawk

Question

Hey Guys,
i implemented a file upload using this tutorial:
http://www.nabble.com/Tomahawk-1.1.3-inputFileUpload-solution-to6449010.html
It works fine. I basically just want to extract the content of a text file.
private UploadedFile upFile;
public String getContentFromTextFile() {
          try {
               if (upFile.getName().endsWith(".txt")) {
                    InputStream inputStream = upFile.getInputStream();
                    InputStreamReader infile = new InputStreamReader(inputStream);
                    BufferedReader inbuf = new BufferedReader(infile);
                    StringBuilder stringBuilder = new StringBuilder();
                    String line;
                    while ((line = inbuf.readLine()) != null) {
                         stringBuilder.append(line);
                         stringBuilder.append('\n');
                    this.currentQuestion.setText(stringBuilder.toString());
                    return "forward";
               } else {
                    FacesContext
                              .getCurrentInstance()
                              .addMessage(
                                        null,
                                        new FacesMessage(
                                                  "Make sure that the file is a text file with the extension .txt"));
                    return "error";
          } catch (IOException ioe) {
               FacesContext
                         .getCurrentInstance()
                         .addMessage(
                                   null,
                                   new FacesMessage(
                                             "Make sure that the file is a text file with the extension .txt"));
               return "error";
          } finally {
               this.upFile = null;
     }I don't want to store any files, so I added the finally statement setting the upFile property to null. Is that sufficient, to make sure that any files will be left? I appreciate any help in advance.
konfri

Answer 1

GrEEn_SK wrote:
I find, that problem was that page was in subview.That shouldn't be a problem. It's entirely server-side.
This problem can however be caused by nesting multiple forms in each other --which is prohibited by our holy W3 HTML specification. JSF can't do much against it then. So make sure that your subview doesn't syntactically end up like
<f:view>
    <h:form>
        <f:subview>
            <h:form>
            </h:form>
        </f:subview>   
    </h:form>
</f:view>but more as
<f:view>
    <h:form>
        <f:subview>
        </f:subview>   
    </h:form>
</f:view>or
<f:view>
    <f:subview>
        <h:form>
        </h:form>
    </f:subview>   
</f:view>You can however use multiple forms in parallel.