Example usage for com.vaadin.ui Upload setComponentError

Introduction

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

Prototype

public void setComponentError(ErrorMessage componentError) 

Source Link

Document

Sets the component's error message.

Usage

From source file:org.escidoc.browser.ui.maincontent.OnAddOrgUnitMetadata.java

License:Open Source License

public void showAddWindow() {
    final Window subwindow = new Window(ViewConstants.ADD_ORGANIZATIONAL_UNIT_S_METADATA);
    subwindow.setWidth("600px");
    subwindow.setModal(true);//from w ww .jav  a2  s  .  com

    // Make uploading start immediately when file is selected
    final Upload upload = new Upload("", receiver);
    upload.setImmediate(true);
    upload.setButtonCaption("Select file");

    progressLayout.setSpacing(true);
    progressLayout.setVisible(false);

    final ProgressIndicator pi = new ProgressIndicator();
    progressLayout.addComponent(pi);
    progressLayout.setComponentAlignment(pi, Alignment.MIDDLE_LEFT);

    /**
     * =========== Add needed listener for the upload component: start, progress, finish, success, fail ===========
     */

    upload.addListener(new Upload.StartedListener() {
        @Override
        public void uploadStarted(final StartedEvent event) {

            upload.setVisible(false);
            progressLayout.setVisible(true);
            pi.setValue(Float.valueOf(0f));
            pi.setPollingInterval(500);
            status.setValue("Uploading file \"" + event.getFilename() + "\"");
        }
    });

    upload.addListener(new Upload.SucceededListener() {

        @Override
        public void uploadSucceeded(final SucceededEvent event) {
            // This method gets called when the upload finished successfully
            status.setValue("Uploading file \"" + event.getFilename() + "\" succeeded");
            final String fileContent = receiver.getFileContent();
            final boolean isWellFormed = XmlUtil.isWellFormed(fileContent);
            receiver.setWellFormed(isWellFormed);
            if (isWellFormed) {
                status.setValue(ViewConstants.XML_IS_WELL_FORMED);
                hl.setVisible(true);
                upload.setEnabled(false);
            } else {
                status.setValue(ViewConstants.XML_IS_NOT_WELL_FORMED);
                hl.setVisible(false);
            }
        }
    });

    upload.addListener(new Upload.FailedListener() {
        @Override
        public void uploadFailed(final FailedEvent event) {
            // This method gets called when the upload failed
            status.setValue("Uploading interrupted");
        }
    });

    upload.addListener(new Upload.FinishedListener() {
        @Override
        public void uploadFinished(final FinishedEvent event) {
            // This method gets called always when the upload finished,
            // either succeeding or failing
            progressLayout.setVisible(false);
            upload.setVisible(true);
            upload.setCaption("Select another file");
        }
    });

    mdName = new TextField("Metadata name");
    mdName.setValue("");
    mdName.setImmediate(true);
    mdName.setValidationVisible(false);

    hl = new HorizontalLayout();
    hl.setMargin(true);
    final Button btnAdd = new Button("Save", new Button.ClickListener() {

        private boolean containSpace(final String text) {
            final Pattern pattern = Pattern.compile("\\s");
            final Matcher matcher = pattern.matcher(text);
            return matcher.find();
        }

        @Override
        public void buttonClick(final ClickEvent event) {

            if (mdName.getValue().equals("")) {
                mdName.setComponentError(new UserError("You have to add a name for your MetaData"));
            } else if (containSpace(((String) mdName.getValue()))) {
                mdName.setComponentError(new UserError("The name of MetaData can not contain space"));
            } else {
                mdName.setComponentError(null);
                if (receiver.getFileContent().isEmpty()) {
                    upload.setComponentError(
                            new UserError("Please select a well formed XML file as metadata."));
                } else if (!receiver.isWellFormed()) {
                    upload.setComponentError(new UserError(ViewConstants.XML_IS_NOT_WELL_FORMED));
                } else {

                    final MetadataRecord metadataRecord = new MetadataRecord(mdName.getValue().toString());
                    try {
                        metadataRecord.setContent(getMetadataContent());
                        controller.addMetaData(metadataRecord);
                        controller.refreshView();
                        upload.setEnabled(true);
                        subwindow.getParent().removeWindow(subwindow);
                    } catch (final SAXException e) {
                        LOG.error(e.getMessage());
                        mdName.setComponentError(new UserError(
                                "Failed to add the new Metadata record" + e.getLocalizedMessage()));
                    } catch (final IOException e) {
                        LOG.error(e.getMessage());
                        mdName.setComponentError(new UserError(
                                "Failed to add the new Metadata record" + e.getLocalizedMessage()));
                    } catch (final ParserConfigurationException e) {
                        LOG.error(e.getMessage());
                        mdName.setComponentError(new UserError(
                                "Failed to add the new Metadata record" + e.getLocalizedMessage()));
                    }
                }
            }
        }

        private Element getMetadataContent() throws SAXException, IOException, ParserConfigurationException {
            final String fileContent = receiver.getFileContent();
            return XmlUtil.string2Dom(fileContent).getDocumentElement();
        }
    });

    final Button cnclAdd = new Button("Cancel", new Button.ClickListener() {
        @Override
        public void buttonClick(final ClickEvent event) {
            (subwindow.getParent()).removeWindow(subwindow);
        }
    });

    hl.addComponent(btnAdd);
    hl.addComponent(cnclAdd);
    subwindow.addComponent(mdName);
    subwindow.addComponent(status);
    subwindow.addComponent(upload);
    subwindow.addComponent(progressLayout);
    subwindow.addComponent(hl);
    mainWindow.addWindow(subwindow);
}

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