/*
- * Sone - ParserFilter.java - Copyright © 2011 David Roden
+ * Sone - ParserFilter.java - Copyright © 2011–2013 David Roden
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
package net.pterodactylus.sone.template;
+import static java.lang.String.valueOf;
+
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.Collections;
import java.util.Map;
import net.pterodactylus.sone.core.Core;
import net.pterodactylus.sone.data.Sone;
-import net.pterodactylus.sone.text.FreenetLinkPart;
-import net.pterodactylus.sone.text.LinkPart;
import net.pterodactylus.sone.text.Part;
-import net.pterodactylus.sone.text.PlainTextPart;
-import net.pterodactylus.sone.text.PostPart;
-import net.pterodactylus.sone.text.SonePart;
import net.pterodactylus.sone.text.SoneTextParser;
import net.pterodactylus.sone.text.SoneTextParserContext;
-import net.pterodactylus.sone.web.page.Page.Request;
+import net.pterodactylus.sone.web.page.FreenetRequest;
import net.pterodactylus.util.template.Filter;
-import net.pterodactylus.util.template.Template;
import net.pterodactylus.util.template.TemplateContext;
-import net.pterodactylus.util.template.TemplateContextFactory;
-import net.pterodactylus.util.template.TemplateParser;
/**
- * Filter that filters a given text through a {@link SoneTextParser}.
+ * Filter that filters a given text through a {@link SoneTextParser} and returns the parsed {@link Part}s.
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
public class ParserFilter implements Filter {
- /** The core. */
private final Core core;
-
- /** The link parser. */
private final SoneTextParser soneTextParser;
- /** The template context factory. */
- private final TemplateContextFactory templateContextFactory;
-
- /** The template for {@link PlainTextPart}s. */
- private final Template plainTextTemplate = TemplateParser.parse(new StringReader("<%text|html>"));
-
- /** The template for {@link FreenetLinkPart}s. */
- private final Template linkTemplate = TemplateParser.parse(new StringReader("<a class=\"<%cssClass|html>\" href=\"<%link|html>\" title=\"<%title|html>\"><%text|html></a>"));
-
- /**
- * Creates a new filter that runs its input through a {@link SoneTextParser}
- * .
- *
- * @param core
- * The core
- * @param templateContextFactory
- * The context factory for rendering the parts
- * @param soneTextParser
- * The Sone text parser
- */
- public ParserFilter(Core core, TemplateContextFactory templateContextFactory, SoneTextParser soneTextParser) {
+ public ParserFilter(Core core, SoneTextParser soneTextParser) {
this.core = core;
- this.templateContextFactory = templateContextFactory;
this.soneTextParser = soneTextParser;
}
* {@inheritDoc}
*/
@Override
- public Object format(TemplateContext templateContext, Object data, Map<String, String> parameters) {
- String text = String.valueOf(data);
- int length = -1;
- try {
- length = Integer.parseInt(parameters.get("length"));
- } catch (NumberFormatException nfe1) {
- /* ignore. */
- }
- if (length == -1) {
- try {
- length = Integer.parseInt(String.valueOf(templateContext.get(parameters.get("length"))));
- } catch (NumberFormatException nfe1) {
- /* ignore. */
- }
- }
- String soneKey = parameters.get("sone");
- if (soneKey == null) {
- soneKey = "sone";
+ public Object format(TemplateContext templateContext, Object data, Map<String, Object> parameters) {
+ String text = valueOf(data);
+ Object sone = parameters.get("sone");
+ if (sone instanceof String) {
+ sone = core.getSone((String) sone).orNull();
}
- Sone sone = (Sone) templateContext.get(soneKey);
- if (sone == null) {
- sone = core.getSone(soneKey, false);
- }
- Request request = (Request) templateContext.get("request");
- SoneTextParserContext context = new SoneTextParserContext(request, sone);
- StringWriter parsedTextWriter = new StringWriter();
+ FreenetRequest request = (FreenetRequest) templateContext.get("request");
+ SoneTextParserContext context = new SoneTextParserContext(request, (Sone) sone);
try {
- Iterable<Part> parts = soneTextParser.parse(context, new StringReader(text));
- if (length > -1) {
- List<Part> shortenedParts = new ArrayList<Part>();
- 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);
+ return soneTextParser.parse(context, new StringReader(text));
} catch (IOException ioe1) {
- /* 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) {
- 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);
- 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) {
- if (text.length() > length) {
- return text.substring(0, length) + "…";
+ /* no exceptions in a StringReader, ignore. */
+ return Collections.<Part>emptyList();
}
- return text;
}
}
projects / Sone.git / blobdiff