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.logging.log4j.LogManager;
022import org.apache.logging.log4j.Logger;
023import org.apache.wiki.api.core.Engine;
024import org.apache.wiki.ui.EditorManager;
025import org.apache.wiki.ui.TemplateManager;
026
027import javax.servlet.ServletException;
028import javax.servlet.jsp.JspException;
029import java.io.IOException;
030
031
032/**
033 *  Creates an editor component with all the necessary parts
034 *  to get it working.
035 *  <p>
036 *  In the future, this component should be expanded to provide
037 *  a customized version of the editor according to user preferences.
038 *
039 *  @since 2.2
040 */
041public class EditorTag extends WikiBodyTag {
042
043    private static final long serialVersionUID = 0L;
044    private static final Logger LOG = LogManager.getLogger( EditorTag.class );
045    
046    @Override
047    public final int doWikiStartTag() throws IOException {
048        return SKIP_BODY;
049    }
050       
051    @Override
052    public int doEndTag() throws JspException {
053        final Engine engine = m_wikiContext.getEngine();
054        final EditorManager mgr = engine.getManager( EditorManager.class );
055        final String editorPath = mgr.getEditorPath( m_wikiContext );
056
057        try {
058            final String page = engine.getManager( TemplateManager.class ).findJSP( pageContext, m_wikiContext.getTemplate(), editorPath );
059
060            if( page == null ) {
061                //FIXME: should be I18N ...
062                pageContext.getOut().println( "Unable to find editor '" + editorPath + "'" );
063            } else {
064                pageContext.include( page );
065            }
066        } catch( final ServletException e ) {
067            LOG.error( "Failed to include editor", e );
068            throw new JspException( "Failed to include editor: " + e.getMessage() );
069        } catch( final IOException e ) {
070            throw new JspException( "Could not print Editor tag: " + e.getMessage() );
071        }
072        
073        return EVAL_PAGE;
074    }
075
076}