/* * Created on Nov 2, 2003 * */ package org.roller.presentation.velocity.plugins.readmore; import org.apache.commons.lang.StringEscapeUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.velocity.context.Context; import org.roller.RollerException; import org.roller.model.RollerFactory; import org.roller.model.UserManager; import org.roller.pojos.WeblogEntryData; import org.roller.pojos.WebsiteData; import org.roller.presentation.RollerRequest; import org.roller.presentation.velocity.PagePlugin; import org.roller.util.Utilities; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; /** * @author lance * */ public class ReadMorePlugin implements PagePlugin { protected String name = "Read More Summary"; protected String description = "Stops entry after 250 characters and creates " + "a link to the full entry."; private static Log mLogger = LogFactory.getFactory().getInstance(ReadMorePlugin.class); String ctxPath = ""; public ReadMorePlugin() { mLogger.debug("ReadMorePlugin instantiated."); } public String toString() { return name; } /* (non-Javadoc) * @see org.roller.presentation.velocity.PagePlugin#init(org.roller.presentation.RollerRequest, org.apache.velocity.context.Context) */ public void init(RollerRequest rreq, Context ctx) throws RollerException { if (rreq == null) throw new RollerException("RollerRequest is null."); ctxPath = rreq.getRequest().getContextPath(); } /** * @param mgr * @param data * @return */ private String getPageLink(UserManager mgr, WebsiteData website) throws RollerException { return mgr.retrievePage(website.getDefaultPageId()).getLink(); } /* * This method cannot do it's intended job (since it cannot * read the current Entry) so it is to do no work! * * (non-Javadoc) * @see org.roller.presentation.velocity.PagePlugin#render(java.lang.String) */ public String render(String str) { return str; } public String render(WeblogEntryData entry, boolean skipFlag) { if (skipFlag) return entry.getText(); // in case it didn't initialize String pageLink = "Weblog"; try { pageLink = getPageLink( RollerFactory.getRoller().getUserManager(), entry.getWebsite()); } catch (RollerException e) { mLogger.warn("Unable to get pageLink", e); } String result = Utilities.truncateNicely(entry.getText(), 240, 260, "... "); try { // if the result is shorter, we need to add "Read More" link if (result.length() < entry.getText().length()) { String link = "Read More"; result += link; } } catch (UnsupportedEncodingException e) { // go with the "no encoding" version } return result; } public String getName() { return name; } public String getDescription() { return StringEscapeUtils.escapeJavaScript(description); } }
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