    001/*
    002    Licensed to the Apache Software Foundation (ASF) under one
    003    or more contributor license agreements.  See the NOTICE file
    004    distributed with this work for additional information
    005    regarding copyright ownership.  The ASF licenses this file
    006    to you under the Apache License, Version 2.0 (the
    007    "License"); you may not use this file except in compliance
    008    with the License.  You may obtain a copy of the License at
    009
    010       http://www.apache.org/licenses/LICENSE-2.0
    011
    012    Unless required by applicable law or agreed to in writing,
    013    software distributed under the License is distributed on an
    014    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015    KIND, either express or implied.  See the License for the
    016    specific language governing permissions and limitations
    017    under the License.
    018 */
    019package org.apache.wiki.tags;
    020
    021import org.apache.wiki.api.core.Engine;
    022import org.apache.wiki.api.core.Page;
    023import org.apache.wiki.i18n.InternationalizationManager;
    024import org.apache.wiki.pages.PageManager;
    025import org.apache.wiki.parser.MarkupParser;
    026import org.apache.wiki.parser.WikiDocument;
    027import org.apache.wiki.preferences.Preferences;
    028import org.apache.wiki.render.RenderingManager;
    029import org.apache.wiki.util.TextUtil;
    030
    031import java.io.IOException;
    032
    033/**
    034 *  Writes the author name of the current page, including a link to that page, if that page exists.
    035 *
    036 *  @since 2.0
    037 */
    038public class AuthorTag extends WikiTagBase {
    039    private static final long serialVersionUID = 0L;
    040
    041    public String m_format = "";
    042
    043    public void setFormat( final String format )
    044    {
    045        m_format = format;  //empty or "plain"
    046    }
    047
    048    /**
    049     *  {@inheritDoc}
    050     */
    051    @Override
    052    public final int doWikiStartTag() throws IOException {
    053        final Engine engine = m_wikiContext.getEngine();
    054        final Page page = m_wikiContext.getPage();
    055        String author = page.getAuthor();
    056
    057        if( author != null && !author.isEmpty() ) {
    058            author = TextUtil.replaceEntities(author);
    059
    060            if( engine.getManager( PageManager.class ).wikiPageExists(author) && !( "plain".equalsIgnoreCase( m_format ) ) ) {
    061                // FIXME: It's very boring to have to do this.  Slow, too.
    062                final RenderingManager mgr = engine.getManager( RenderingManager.class );
    063                final MarkupParser p = mgr.getParser( m_wikiContext, "["+author+"|"+author+"]" );
    064                final WikiDocument d = p.parse();
    065                author = mgr.getHTML( m_wikiContext, d );
    066            }
    067
    068            pageContext.getOut().print( author );
    069        } else {
    070            pageContext.getOut().print( Preferences.getBundle( m_wikiContext, InternationalizationManager.CORE_BUNDLE )
    071                                                   .getString( "common.unknownauthor" ) );
    072        }
    073
    074        return SKIP_BODY;
    075    }
    076
    077}