X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Ftemplate%2FParserFilter.java;h=5f6fd3e5790d7f266e5220c357ca5cd8f6c79ba1;hb=7755990dfedede27bb6422de66e27b484255a1ad;hp=2030807174a2b85b0c68e4466ba44433baacb4ee;hpb=38c1d04aefb25fa4418cfd9e9ce3474b6cd2696a;p=Sone.git diff --git a/src/main/java/net/pterodactylus/sone/template/ParserFilter.java b/src/main/java/net/pterodactylus/sone/template/ParserFilter.java index 2030807..5f6fd3e 100644 --- a/src/main/java/net/pterodactylus/sone/template/ParserFilter.java +++ b/src/main/java/net/pterodactylus/sone/template/ParserFilter.java @@ -21,6 +21,8 @@ import java.io.IOException; import java.io.StringReader; import java.io.StringWriter; import java.io.Writer; +import java.util.ArrayList; +import java.util.List; import java.util.Map; import net.pterodactylus.sone.core.Core; @@ -51,7 +53,7 @@ public class ParserFilter implements Filter { private final Core core; /** The link parser. */ - private final SoneTextParser textParser; + private final SoneTextParser soneTextParser; /** The template context factory. */ private final TemplateContextFactory templateContextFactory; @@ -70,11 +72,13 @@ public class ParserFilter implements Filter { * The core * @param templateContextFactory * The context factory for rendering the parts + * @param soneTextParser + * The Sone text parser */ - public ParserFilter(Core core, TemplateContextFactory templateContextFactory) { + public ParserFilter(Core core, TemplateContextFactory templateContextFactory, SoneTextParser soneTextParser) { this.core = core; this.templateContextFactory = templateContextFactory; - textParser = new SoneTextParser(core); + this.soneTextParser = soneTextParser; } /** @@ -83,6 +87,12 @@ public class ParserFilter implements Filter { @Override public Object format(TemplateContext templateContext, Object data, Map parameters) { String text = String.valueOf(data); + int length = -1; + try { + length = Integer.parseInt(parameters.get("length")); + } catch (NumberFormatException nfe1) { + /* ignore. */ + } String soneKey = parameters.get("sone"); if (soneKey == null) { soneKey = "sone"; @@ -95,7 +105,31 @@ public class ParserFilter implements Filter { SoneTextParserContext context = new SoneTextParserContext(request, sone); StringWriter parsedTextWriter = new StringWriter(); try { - render(parsedTextWriter, textParser.parse(context, new StringReader(text))); + Iterable parts = soneTextParser.parse(context, new StringReader(text)); + if (length > -1) { + List shortenedParts = new ArrayList(); + for (Part part : parts) { + if (part instanceof PlainTextPart) { + String longText = ((PlainTextPart) part).getText(); + if (length >= longText.length()) { + shortenedParts.add(part); + } else { + shortenedParts.add(new PlainTextPart(longText.substring(0, length))); + } + length -= longText.length(); + } else if (part instanceof LinkPart) { + shortenedParts.add(part); + length -= ((LinkPart) part).getText().length(); + } else { + shortenedParts.add(part); + } + if (length <= 0) { + break; + } + } + parts = shortenedParts; + } + render(parsedTextWriter, parts); } catch (IOException ioe1) { /* no exceptions in a StringReader or StringWriter, ignore. */ } @@ -106,12 +140,29 @@ public class ParserFilter implements Filter { // 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 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); @@ -128,28 +179,82 @@ public class ParserFilter implements Filter { } } + /** + * 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) { renderLink(writer, "viewSone.html?sone=" + sonePart.getSone().getId(), SoneAccessor.getNiceName(sonePart.getSone()), SoneAccessor.getNiceName(sonePart.getSone()), "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); @@ -163,6 +268,16 @@ public class ParserFilter implements Filter { // 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) { if (text.length() > length) { return text.substring(0, length) + "…";