+ /* no exceptions in a StringReader or StringWriter, ignore. */
+ }
+ return parsedTextWriter.toString();
+ }
+
+ //
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Renders the given parts.
+ *
+ * @param writer
+ * The writer to render the parts to
+ * @param parts
+ * The parts to render
+ */
+ private void render(Writer writer, Iterable<Part> parts) {
+ for (Part part : parts) {
+ render(writer, part);
+ }
+ }
+
+ /**
+ * Renders the given part.
+ *
+ * @param writer
+ * The writer to render the part to
+ * @param part
+ * The part to render
+ */
+ @SuppressWarnings("unchecked")
+ private void render(Writer writer, Part part) {
+ if (part instanceof PlainTextPart) {
+ render(writer, (PlainTextPart) part);
+ } else if (part instanceof FreenetLinkPart) {
+ render(writer, (FreenetLinkPart) part);
+ } else if (part instanceof LinkPart) {
+ render(writer, (LinkPart) part);
+ } else if (part instanceof SonePart) {
+ render(writer, (SonePart) part);
+ } else if (part instanceof PostPart) {
+ render(writer, (PostPart) part);
+ } else if (part instanceof Iterable<?>) {
+ render(writer, (Iterable<Part>) part);
+ }
+ }
+
+ /**
+ * Renders the given plain-text part.
+ *
+ * @param writer
+ * The writer to render the part to
+ * @param plainTextPart
+ * The part to render
+ */
+ private void render(Writer writer, PlainTextPart plainTextPart) {
+ TemplateContext templateContext = templateContextFactory.createTemplateContext();
+ templateContext.set("text", plainTextPart.getText());
+ plainTextTemplate.render(templateContext, writer);
+ }
+
+ /**
+ * Renders the given freenet link part.
+ *
+ * @param writer
+ * The writer to render the part to
+ * @param freenetLinkPart
+ * The part to render
+ */
+ private void render(Writer writer, FreenetLinkPart freenetLinkPart) {
+ renderLink(writer, "/" + freenetLinkPart.getLink(), freenetLinkPart.getText(), freenetLinkPart.getTitle(), freenetLinkPart.isTrusted() ? "freenet-trusted" : "freenet");
+ }
+
+ /**
+ * Renders the given link part.
+ *
+ * @param writer
+ * The writer to render the part to
+ * @param linkPart
+ * The part to render
+ */
+ private void render(Writer writer, LinkPart linkPart) {
+ renderLink(writer, "/?_CHECKED_HTTP_=" + linkPart.getLink(), linkPart.getText(), linkPart.getTitle(), "internet");
+ }
+
+ /**
+ * Renders the given Sone part.
+ *
+ * @param writer
+ * The writer to render the part to
+ * @param sonePart
+ * The part to render
+ */
+ private void render(Writer writer, SonePart sonePart) {
+ if ((sonePart.getSone() != null) && (sonePart.getSone().getName() != null)) {
+ renderLink(writer, "viewSone.html?sone=" + sonePart.getSone().getId(), SoneAccessor.getNiceName(sonePart.getSone()), SoneAccessor.getNiceName(sonePart.getSone()), "in-sone");
+ } else {
+ renderLink(writer, "/WebOfTrust/ShowIdentity?id=" + sonePart.getSone().getId(), sonePart.getSone().getId(), sonePart.getSone().getId(), "in-sone");
+ }
+ }
+
+ /**
+ * Renders the given post part.
+ *
+ * @param writer
+ * The writer to render the part to
+ * @param postPart
+ * The part to render
+ */
+ private void render(Writer writer, PostPart postPart) {
+ renderLink(writer, "viewPost.html?post=" + postPart.getPost().getId(), getExcerpt(postPart.getPost().getText(), 20), SoneAccessor.getNiceName(postPart.getPost().getSone()), "in-sone");
+ }
+
+ /**
+ * Renders the given link.
+ *
+ * @param writer
+ * The writer to render the link to
+ * @param link
+ * The link to render
+ * @param text
+ * The text of the link
+ * @param title
+ * The title of the link
+ * @param cssClass
+ * The CSS class of the link
+ */
+ private void renderLink(Writer writer, String link, String text, String title, String cssClass) {
+ TemplateContext templateContext = templateContextFactory.createTemplateContext();
+ templateContext.set("cssClass", cssClass);
+ templateContext.set("link", link);
+ templateContext.set("text", text);
+ templateContext.set("title", title);
+ linkTemplate.render(templateContext, writer);
+ }
+
+ //
+ // STATIC METHODS
+ //
+
+ /**
+ * Returns up to {@code length} characters from the given text, appending
+ * “…” if the text is longer.
+ *
+ * @param text
+ * The text to get an excerpt from
+ * @param length
+ * The maximum length of the excerpt (without the ellipsis)
+ * @return The excerpt of the text
+ */
+ private static String getExcerpt(String text, int length) {
+ String filteredText = text.replaceAll("(\r\n)+", "\r\n").replaceAll("\n+", "\n").replace("\r\n", " ").replace('\n', ' ');
+ if (filteredText.length() > length) {
+ return filteredText.substring(0, length) + "…";