I am want to save the uploaded file in temp folder till its persisted in
database along with some other fields.
I have a page with a form and a uploadpanel which is ajaxfileupload.
User 1 open this page uploaded a file with name test.pdf and filing up
other fields in the form.
at this time user2 with a different session opens this page and uploaded
the file with the same name .
uploaded files are saved to java.io.temp here is my upload folder
uploadFolder = new Folder(System.getProperty("java.io.tmpdir"),
"wicket-uploads");
uploadFolder.mkdirs();
so in my case user2 has replaced the file uploaded by user1, now when user1
persists the file and other fields to database he is persisting wrong file
.
Please suggest me what is the best practice to handle such situations ,
best practice to save files to temp folder in multi threaded application ?
I thought of using a database sequence.nextval as appender to filename so
that I uniquely identify the file, please suggest best practice ?
a user open my page uploaded file
my concern is suppose user uploads a file with filename
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