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.render;
020
021import org.apache.wiki.api.core.Context;
022import org.apache.wiki.parser.WikiDocument;
023import org.jdom2.output.Format;
024import org.jdom2.output.XMLOutputter;
025
026import java.io.IOException;
027import java.io.StringWriter;
028
029/**
030 *  Implements a WikiRendered that outputs XHTML.  Because the internal DOM  representation is in XHTML already, this just basically
031 *  dumps out everything out in a non-prettyprinted format.
032 *
033 *  @since  2.4
034 */
035public class XHTMLRenderer extends WikiRenderer {
036
037    private static final String LINEBREAK = "\n";
038
039    /**
040     *  Creates an XHTML 1.0 renderer.
041     *
042     *  @param context A WikiContext in which the rendering will take place.
043     *  @param doc The WikiDocument which shall be rendered.
044     */
045    public XHTMLRenderer( final Context context, final WikiDocument doc )
046    {
047        super( context, doc );
048    }
049
050    /**
051     *  {@inheritDoc}
052     */
053    public String getString() throws IOException {
054        m_document.setContext( m_context );
055
056        final CustomXMLOutputProcessor processor = new CustomXMLOutputProcessor();
057        final XMLOutputter output = new XMLOutputter(processor);
058        final StringWriter out = new StringWriter();
059        final Format fmt = Format.getRawFormat();
060        fmt.setExpandEmptyElements( false );
061        fmt.setLineSeparator( LINEBREAK );
062
063        output.setFormat( fmt );
064        output.outputElementContent( m_document.getRootElement(), out );
065
066        return out.toString();
067    }
068
069}