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Tag Archives: JSPWiki
Erstellen von JSPWiki Plugins
6. Oktober 2011

Das JSPWiki läßt sich recht einfach auch durch eigene Plugins erweitern. Hierzu ist es ausreichend eine jar zu Erstellen, diese und WEB.INF/lib abzulegen und unter den jspwiki.properties den Suchpath entsprechend zu erweitern. Anschließend kann mittels

[{ContextAndParameterPlugin parameter='true'}]

dass Plugin aufgerufen werden:

[{ContextAndParameterPlugin parameter='true'}]

Hier ist der Code zu dem Plugin

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package de.malime.jspwiki;
 
import java.util.Iterator;
import java.util.Map;
 
import com.ecyrd.jspwiki.WikiContext;
import com.ecyrd.jspwiki.WikiEngine;
import com.ecyrd.jspwiki.WikiPage;
import com.ecyrd.jspwiki.plugin.PluginException;
import com.ecyrd.jspwiki.plugin.WikiPlugin;
 
public class ContextAndParameterPlugin implements WikiPlugin {
	@SuppressWarnings("rawtypes")
	public String execute (WikiContext Context, Map ParameterMap) throws PluginException {
		String Result = "<h4>ContextAndParamterPlugin - examines the actual \"WikiContext\" and lists the given plugin parameters</h4>\n\n";
		Result += "<table width=100%>";
		/**
		 * examine the actual wiki engine 
		 **/
		WikiEngine Engine = Context.getEngine();
		Result += "  <tr valign=top>\n";
		Result += "    <td><b>Wiki Engine:</b></td>\n";
		Result += "    <td>" + Engine.getApplicationName() + " (" + Engine.getPageCount() + " pages, up since " + Engine.getStartTime() + ")</td>\n";
		Result += "  </tr>\n";
		/**
		 * examine the actual wiki page 
		 **/
		WikiPage Page   = Context.getPage();
		String Author = Page.getAuthor();
		Result += "  <tr valign=top>\n";
		Result += "    <td><b>Wiki Page:</b></td>\n";
		Result += "    <td>" + Page.getName() + " (version " + Page.getVersion() + ", modified on " + Page.getLastModified() + ( Author == null ? "" : " by " + Author) + ")</td>\n";
		Result += "  </tr>\n";
		/** 
		 * finally show the request context 
		 **/
		Result += "  <tr valign=top>\n";
		Result += "    <td><b>Request Context:</b></td>\n";
		Result += "    <td>" + Context.getRequestContext() + "</td>\n";
		Result += "  </tr>\n + </table>\n";
 
		if (ParameterMap == null || ParameterMap.isEmpty()) {
			return Result;
		}
	    Result += "<dl>";
	    for (Iterator ParameterInterator = ParameterMap.entrySet().iterator(); ParameterInterator.hasNext(); ) {
	    	Map.Entry Entry = (Map.Entry)ParameterInterator.next();
	    	Object Key = Entry.getKey();
	    	Result += "<dt>" + Key + (Key != null ? " (" + Key.getClass().getName() + ")" : "") + "\n";
	    	Object Value = Entry.getValue();
	    	if (Value == null) {
	    		Result += "<dd>(null)";
	    	} else {
	    		if (Value instanceof String) {
	    			Result += "<dd>\"" + Value + "\"";
	    		} else {
	    			Result += "<dd>(" + Value.getClass().getName() + ") " + Value + "\n";
	    		}
	    	}
	    }
	    return Result + "</dl>";	
	};
}