Example usage for com.vaadin.ui Upload.StartedListener Upload.StartedListener

Introduction

In this page you can find the example usage for com.vaadin.ui Upload.StartedListener Upload.StartedListener.

Prototype

Upload.StartedListener

Source Link

Usage

From source file:edu.nps.moves.mmowgli.modules.actionplans.UploadHandler.java

License:Open Source License

@SuppressWarnings("serial")
public UploadHandler(Upload upld, UploadStatus panel, String savePath) {
    this.upload = upld;
    this.savePath = savePath;
    this.window = panel;
    new File(savePath).mkdirs();

    upload.addStartedListener(new Upload.StartedListener() {
        public void uploadStarted(StartedEvent event) {
            // this method gets called immediately after upload is started
            window.pi.setValue(0f);//from w  ww .  j a va2  s  .  c o  m
            window.pi.setVisible(true);
            window.textualProgress.setVisible(true);
            // updates to client
            window.state.setValue("Uploading");
            window.fileName.setValue(event.getFilename());

            window.cancelProcessing.setVisible(true);
        }
    });

    upload.addProgressListener(new Upload.ProgressListener() {
        public void updateProgress(long readBytes, long contentLength) {
            // this method gets called several times during the update
            if (readBytes > MAXUPLOADSIZE) {
                window.textualProgress.setValue("Upload failed: " + MAXUPLOADSTRING + " limit");
                upload.interruptUpload();
                window.pi.setVisible(false);
            } else {
                window.pi.setValue(new Float(readBytes / (float) contentLength));
                window.textualProgress.setValue("Processed " + readBytes + " bytes of " + contentLength);
                window.result.setValue(counter + " (counting...)");
            }
        }
    });

    upload.addSucceededListener(new Upload.SucceededListener() {
        public void uploadSucceeded(SucceededEvent event) {
            window.result.setValue(counter + " (total)");
        }
    });

    upload.addFailedListener(new Upload.FailedListener() {
        public void uploadFailed(FailedEvent event) {
            window.result.setValue(counter + " (upload interrupted at "
                    + Math.round(100 * (Float) window.pi.getValue()) + "%)");
            finalFullFilePath = null; // indicate error
        }
    });

    upload.addFinishedListener(new Upload.FinishedListener() {
        public void uploadFinished(FinishedEvent event) {
            window.state.setValue("Finished");
            // window.pi.setVisible(false);
            // window.textualProgress.setVisible(false);
            window.cancelProcessing.setVisible(false);
        }
    });
}

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