    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.apache.wiki.util.XmlUtil;
    024
    025
    026/**
    027 *  A simple renderer that just renders all the text() nodes from the DOM tree. This is very useful for cleaning away all of the XHTML.
    028 *
    029 *  @since  2.4
    030 */
    031public class CleanTextRenderer extends WikiRenderer {
    032
    033    /**
    034     *  Create a renderer.
    035     *
    036     *  @param context A WikiContext in which the rendering will take place.
    037     *  @param doc The WikiDocument which shall be rendered.
    038     */
    039    public CleanTextRenderer( final Context context, final WikiDocument doc ) {
    040        super( context, doc );
    041    }
    042
    043    /**
    044     *  {@inheritDoc}
    045     */
    046    @Override
    047    public String getString() {
    048        return m_document != null ? XmlUtil.extractTextFromDocument( m_document.getDocument() ) : "";
    049    }
    050
    051}