Hi Ichiro, and thanks! :-D
not sure if I'll be able to do this before weekend, so if anyone wants to
do the check in, or attach this to a new JIRA issue, please feel free.
cheers,
juan pablo
----------
From: Ichiro Furusato <ichiro.furus...@gmail.com>
Date: Thu, Feb 6, 2014 at 1:05 AM
Subject: new IndexPlugin
To: Juan Pablo Santos Rodríguez <juanpablo.san...@gmail.com>
Hi Juan Pablo,
I've rewritten the IndexPlugin using JDOM2 so we can eliminate the retired
Apache ECS project reference. If you want you can check it in to the trunk.
Note the attached file.
Ichiro
/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
*/
package org.apache.wiki.plugin;
import org.apache.log4j.Logger;
import org.apache.wiki.WikiContext;
import org.apache.wiki.api.exceptions.PluginException;
import org.apache.wiki.api.exceptions.ProviderException;
import org.apache.wiki.api.plugin.WikiPlugin;
import org.apache.wiki.plugin.AbstractReferralPlugin;
import org.jdom2.Element;
import org.jdom2.Namespace;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
/**
* A WikiPlugin that creates an index of pages according to a certain pattern.
* <br />
* The default is to include all pages.
* <p>
* This is a rewrite of the earlier JSPWiki IndexPlugin using JDOM2.
8 </p>
* <p>
* Parameters (from AbstractReferralPlugin):
* </p>
* <ul>
* <li><b>include</b> - A regexp pattern for marking which pages should be included.</li>
* <li><b>exclude</b> - A regexp pattern for marking which pages should be excluded.</li>
* </ul>
*
* @author Ichiro Furusato
*/
public class IndexPlugin extends AbstractReferralPlugin implements WikiPlugin
{
private static Logger log = Logger.getLogger(IndexPlugin.class);
private Namespace xmlns_XHTML = Namespace.getNamespace("http://www.w3.org/1999/xhtml";);
/**
* {@inheritDoc}
*/
public String execute( WikiContext context, Map<String,String> params ) throws PluginException
{
String include = params.get(PARAM_INCLUDE);
String exclude = params.get(PARAM_EXCLUDE);
Element masterDiv = getElement("div","index");
Element indexDiv = getElement("div","header");
masterDiv.addContent(indexDiv);
try {
List<String> pages = listPages(context,include,exclude);
context.getEngine().getPageSorter().sort(pages);
char initialChar = ' ';
Element currentDiv = new Element("div",xmlns_XHTML);
for ( String name : pages ) {
if ( name.charAt(0) != initialChar ) {
if ( initialChar != ' ' ) {
indexDiv.addContent(" - ");
}
initialChar = name.charAt(0);
masterDiv.addContent(makeHeader(String.valueOf(initialChar)));
currentDiv = getElement("div","body");
masterDiv.addContent(currentDiv);
indexDiv.addContent(getLink("#"+initialChar,String.valueOf(initialChar)));
} else {
currentDiv.addContent(", ");
}
currentDiv.addContent(getLink(context.getURL(WikiContext.VIEW,name),name));
}
} catch( ProviderException e ) {
log.warn("could not load page index",e);
throw new PluginException( e.getMessage() );
}
// serialize to raw format string (no changes to whitespace)
XMLOutputter out = new XMLOutputter(Format.getRawFormat());
return out.outputString(masterDiv);
}
private Element getLink( String href, String content )
{
Element a = new Element("a",xmlns_XHTML);
a.setAttribute("href",href);
a.addContent(content);
return a;
}
private Element makeHeader( String initialChar )
{
Element span = getElement("span","section");
Element a = new Element("a",xmlns_XHTML);
a.setAttribute("id",initialChar);
a.addContent(initialChar);
span.addContent(a);
return span;
}
private Element getElement( String gi, String classValue )
{
Element elt = new Element(gi,xmlns_XHTML);
elt.setAttribute("class",classValue);
return elt;
}
/**
* Grabs a list of all pages and filters them according to the include/exclude patterns.
*
* @param context
* @param include
* @param exclude
* @return A list containing page names which matched the filters.
* @throws ProviderException
*/
private List<String> listPages( WikiContext context, String include, String exclude )
throws ProviderException
{
Pattern includePtrn = include != null
? Pattern.compile( include )
: Pattern.compile(".*");
Pattern excludePtrn = exclude != null
? Pattern.compile( exclude )
: Pattern.compile("\\p{Cntrl}"); // there are no control characters in page names
List<String> result = new ArrayList<String>();
@SuppressWarnings("unchecked")
Collection<String> pages = (Collection<String>)context.getEngine().getReferenceManager().findCreated();
for ( Iterator<String> i = pages.iterator(); i.hasNext(); ) {
String pageName = (String) i.next();
if ( excludePtrn.matcher( pageName ).matches() ) continue;
if ( includePtrn.matcher( pageName ).matches() ) {
result.add( pageName );
}
}
return result;
}
}
