hi
i am trying to write a portlet that handle file uploading with vaadin.
in my code add file upload component done correctly but when i click upload button then don't enter in "receiveUpload" method to i do other tasks.
my code in the below:
public class AddressBookApplication extends Application
{
private Window main = new Window("test");
public void init() {
setMainWindow(main);
}
private Label result = new Label();
private LineBreakCounter counter = new LineBreakCounter();
private Upload upload = new Upload("Upload a file", counter);
public AddressBookApplication() {
main.addComponent(upload);
main.addComponent(result);
upload.addListener(new Upload.FinishedListener() {
public void uploadFinished(FinishedEvent event) {
result.setValue("Uploaded file contained "
+ counter.getLineBreakCount() + " linebreaks");
}
});
}
public static class LineBreakCounter implements Receiver {
private String fileName;
private String mtype;
private int counter;
/**
* return an OutputStream that simply counts lineends
*/
public OutputStream receiveUpload(String filename, String MIMEType) {
// this line because of i know that enter in this method
System.out.println("AddressBookApplication$LineBreakCounter.receiveUpload");
counter = 0;
fileName = filename;
mtype = MIMEType;
return new OutputStream() {
private static final int searchedByte = '\n';
@Override
public void write(int b) throws IOException {
if (b == searchedByte) {
counter++;
}
}
};
}
public String getFileName() {
return fileName;
}
public String getMimeType() {
return mtype;
}
public int getLineBreakCount() {
return counter;
}
}
}
please help me !!!
