- * An abstract base form for uploading Texts. The code of this class has been - * extracted from {@link TextAssetBody}, the form for editing an TextAsset (used - * for example for Article). The TextAsset has the disadvantage of storing its - * information in a separate table, so that information of a content item is - * spread over several tables. - *
- *- * To use this form, define a property for your object which has the Java type - * String and the database type CLOB, like this: - *
- *- * String[0..1] text = ct_yourContenttype.text CLOB - *- *
- * To use this form your have to overwrite three methods: - *
- *
- * This method is called to pass the uploaded text to the edited object. In
- * the method, you have to retrieve the current selected object from the
- * itemModel parameter and call the appropriate
- * set of your class, and its save method. An simple example:
- *
- * @Override
- * public void setText(ItemSelectionModel itemModel,
- * PageState state,
- * String text) {
- * YourContentType obj = (YourContentType) itemModel.getSelectedObject(state);
- * obj.setText(text);
- * obj.save();
- * }
- *
- *
- * @param itemModel The {@link ItemSelectionModel} used by the form.
- * @param state The current {@link PageState}.
- * @param text The uploaded text.
- */
- public abstract void setText(ItemSelectionModel itemModel,
- PageState state,
- String text);
-
- protected void addWidgets() {
- add(new Label(getLabelText()));
- fileUploadSection = new FileUploadSection(
- getMimeTypeLabel(),
- "mime",
- "text/plain");
- fileUploadSection.getFileUploadWidget().addValidationListener(
- new NotNullValidationListener());
- fileUploadSection.getMimeTypeWidget().setDefaultValue(
- FileUploadSection.GUESS_MIME);
- add(fileUploadSection);
-
- saveCancelSection = new SaveCancelSection();
- add(saveCancelSection);
-
- add(new FormErrorDisplay(this));
-
- addValidationListener(this);
- addProcessListener(this);
- }
-
- /**
- * @return the save/cancel section for this form
- */
- public SaveCancelSection getSaveCancelSection() {
- return saveCancelSection;
- }
-
- @Override
- public void init(final FormSectionEvent event) throws FormProcessException {
- final PageState state = event.getPageState();
-
- setVisible(state, true);
- }
-
- /**
- * Validate file upload
- *
- * @param event
- *
- * @throws FormProcessException
- */
- @Override
- public void validate(final FormSectionEvent event) throws
- FormProcessException {
-
- final MimeType mime = fileUploadSection.getMimeType(event);
- boolean textType = mime.getPrimaryType().equals("text");
-
- validateFileType(mime, textType);
-
- // Convert the file to HTML, if possible
- final File file = fileUploadSection.getFile(event);
- byte[] file_bytes = readFileBytes(file);
- boolean[] used_inso = new boolean[1];
- String file_content = convertBytes(file_bytes, textType, used_inso);
-
- if ("text/html".equals(mime.toString())) {
- file_content = extractHTMLBody(file_content);
- }
-
- final PageState state = event.getPageState();
- fileUploadContent.set(state, file_content);
- fileUploadContentUsedInso.set(state, used_inso[0]);
- }
-
- @Override
- public void process(final FormSectionEvent event)
- throws FormProcessException {
- LOGGER.debug("Processing upload...");
- final PageState state = event.getPageState();
- //File file = fileUploadSection.getFile(fse);
- //SciProject project = (SciProject) itemModel.getSelectedObject(state);
-
- final String uploadContent = (String) fileUploadContent.get(state);
- //boolean usedInso = (Boolean) fileUploadContentUsedInso.get(state);
-
- LOGGER.debug(String.format("Setting project description to: %s",
- uploadContent));
- //project.setProjectDescription(uploadContent);
- LOGGER.debug("Saving project.");
- //project.save();
- setText(itemModel, state, uploadContent);
- }
-
- private void validateFileType(final MimeType mime, final boolean textType)
- throws FormProcessException {
-
- boolean validType = textType;
-
- if (!validType) {
- throw new FormProcessException(GlobalizationUtil.globalize(
- "cms.ui.authoring.invalid_file_type"));
- }
- }
-
- /**
- * read in the content of the file (in bytes).
- */
- private byte[] readFileBytes(final File file) throws FormProcessException {
- final byte[] fileBytes;
- try (FileInputStream fileInputStream = new FileInputStream(file)) {
- fileBytes = new byte[fileInputStream.available()];
- fileInputStream.read(fileBytes);
- } catch (IOException ex) {
- throw new FormProcessException(GlobalizationUtil.globalize(
- "cms.ui.authoring.unable_to_load_file"));
- }
- return fileBytes;
- }
-
- /**
- * Convert bytes to String, possibly using INSO filter to convert to HTML
- * type
- */
- private String convertBytes(final byte[] fileBytes,
- final boolean textType,
- final boolean[] usedInso)
- throws FormProcessException {
-
- return new String(fileBytes, StandardCharsets.UTF_8);
- }
-
- /**
- * Extract the contents of the html Body tag. (Done to prevent base and
- * other header tags from interfering with page display).
- */
- private String extractHTMLBody(final String htmlText)
- throws FormProcessException {
-
- final String lc = htmlText.toLowerCase();
- final int bodyStart = lc.indexOf("