Examples with StepChangeListener de.catma.ui.dialog.wizard.StepChangeListener used on opensource projects

Example 1 with StepChangeListener

use of de.catma.ui.dialog.wizard.StepChangeListener in project catma by forTEXT.

the class InspectContentStep method enter.

@Override
public void enter(boolean back) {
    if (back) {
        return;
    }
    @SuppressWarnings("unchecked") Collection<UploadFile> fileList = (Collection<UploadFile>) wizardContext.get(DocumentWizard.WizardContextKey.UPLOAD_FILE_LIST);
    contentPanel.setEnabled(false);
    progressBar.setVisible(true);
    progressBar.setIndeterminate(true);
    final ArrayList<UploadFile> files = new ArrayList<UploadFile>(fileList);
    BackgroundServiceProvider backgroundServiceProvider = (BackgroundServiceProvider) UI.getCurrent();
    backgroundServiceProvider.submit("inspecting-files", new DefaultProgressCallable<List<UploadFile>>() {

        @Override
        public List<UploadFile> call() throws Exception {
            Tika tika = new Tika();
            LanguageDetector languageDetector = LanguageDetector.getDefaultLanguageDetector();
            try {
                languageDetector.loadModels();
            } catch (IOException e) {
                ((ErrorHandler) UI.getCurrent()).showAndLogError("Error loading language detection models!", e);
            }
            for (UploadFile uploadFile : files) {
                if (uploadFile.getMimetype().equals(FileType.XML2.getMimeType())) {
                    XML2ContentHandler contentHandler = new XML2ContentHandler();
                    SourceDocumentInfo sourceDocumentInfo = new SourceDocumentInfo();
                    TechInfoSet techInfoSet = new TechInfoSet(uploadFile.getOriginalFilename(), uploadFile.getMimetype(), uploadFile.getTempFilename());
                    sourceDocumentInfo.setTechInfoSet(techInfoSet);
                    contentHandler.setSourceDocumentInfo(sourceDocumentInfo);
                    contentHandler.load();
                    String content = contentHandler.getContent();
                    LanguageResult languageResult = languageDetector.detect(content);
                    if (languageResult.isReasonablyCertain() && languageResult.getLanguage() != null) {
                        uploadFile.setLanguage(new LanguageItem(new Locale(languageResult.getLanguage())));
                    }
                } else {
                    Metadata metadata = new Metadata();
                    try {
                        try (FileInputStream fis = new FileInputStream(new File(uploadFile.getTempFilename()))) {
                            String content = tika.parseToString(fis, metadata);
                            String contentType = metadata.get(Metadata.CONTENT_TYPE);
                            MediaType mediaType = MediaType.parse(contentType);
                            String charset = mediaType.getParameters().get("charset");
                            if (charset != null) {
                                uploadFile.setCharset(Charset.forName(charset));
                            }
                            LanguageResult languageResult = languageDetector.detect(content);
                            if (languageResult.isReasonablyCertain() && languageResult.getLanguage() != null) {
                                uploadFile.setLanguage(new LanguageItem(new Locale(languageResult.getLanguage())));
                            }
                        }
                    } catch (Exception e) {
                        Logger.getLogger(InspectContentStep.class.getName()).log(Level.SEVERE, String.format("Error inspecting %1$s", uploadFile.getOriginalFilename()), e);
                        String errorMsg = e.getMessage();
                        if ((errorMsg == null) || (errorMsg.trim().isEmpty())) {
                            errorMsg = "";
                        }
                        Notification.show("Error", String.format("Error inspecting content of %1$s! " + "Adding this file to your Project might fail!\n The underlying error message was:\n%2$s", uploadFile.getOriginalFilename(), errorMsg), Type.ERROR_MESSAGE);
                    }
                }
            }
            return files;
        }
    }, new ExecutionListener<List<UploadFile>>() {

        @Override
        public void done(List<UploadFile> result) {
            contentPanel.setEnabled(true);
            progressBar.setVisible(false);
            progressBar.setIndeterminate(false);
            fileList.clear();
            fileList.addAll(result);
            fileDataProvider.refreshAll();
            if (!fileList.isEmpty()) {
                fileList.stream().findFirst().ifPresent(uploadFile -> {
                    fileGrid.select(uploadFile);
                    updatePreview(uploadFile);
                });
            }
            if (stepChangeListener != null) {
                stepChangeListener.stepChanged(InspectContentStep.this);
            }
        }

        @Override
        public void error(Throwable t) {
            Logger.getLogger(InspectContentStep.class.getName()).log(Level.SEVERE, "Error inspecting files", t);
            String errorMsg = t.getMessage();
            if ((errorMsg == null) || (errorMsg.trim().isEmpty())) {
                errorMsg = "";
            }
            Notification.show("Error", String.format("Error inspecting the contents! " + "\n The underlying error message was:\n%1$s", errorMsg), Type.ERROR_MESSAGE);
        }
    });
}