Richfaces 4, rich:fileUpload error with the inputStream

[ivanlch08]

Hola,

I have the following error with the component rich:fileUpload.

I have this fileListener:

private UploadedFile item;

public void fileListener(FileUploadEvent event) {

     item = event.getUploadedFile();

}//listener

works fine.

but after upload the file, I have a method executed by a h:commandButton, that convert the inputStream into a File:

private File streamToFile( UploadedFile upFile ){

  File temp = prepareTempFile();

  if(temp != null && temp.exists()) {

            try {

            InputStream inputStream = upFile.getInputStream();     //exception

                if(saveToFile(inputStream, temp)) {

                    return temp;

                }

            } catch (Exception ex) {

            ex.printStackTrace();

            }

        }

  return null;

  }

It throws an Exception in this line:

            InputStream inputStream = upFile.getInputStream();     //exception

this is the trace:

java.io.FileNotFoundException: D:\Ivan\desarrollo\jboss-as-7.1.1.Final\standalone\tmp\work\jboss.web\default-host\svr\richfaces_uploaded_file_2231567571047239373.tmp (El sistema no puede encontrar el archivo especificado)

(file not found).

I resolve this in a strange way, I add to the listener the following line:

private UploadedFile item;

public void fileListener(FileUploadEvent event) {

     item = event.getUploadedFile();

     InputStream inputStream = upFile.getInputStream();// this solve the problem, just call method getInputStream()

}//listener

but I want to know why this happen, and if exist another solution. maybe I'm missing some configuration.

Thank you.

Iván.

[michpetrov]

Hi,

you should process the file as soon as you upload it. The file is stored in a temporary location so by design it will only be available for a short while. As for your use-case - the user already clicked the upload button, why put another one in front of him?

[ivanlch08]

Hello Michal, thank you for you answer. The app have a form with many fields, one of them is the fileUpload. The last button is a confirmation button, when the user confirm by pressing that button, the app process all data, including the file.

If the component was designed that way, I have to change it.

thanks.

[michpetrov]

Ah, I see. Still, just save it to a less temporary file and when you submit the form use that file.