001    // Copyright 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.markup;
016    
017    import java.io.PrintWriter;
018    
019    import org.apache.hivemind.util.Defense;
020    import org.apache.tapestry.util.text.ICharacterTranslator;
021    
022    /**
023     * Base class for implementation based on a
024     * {@link org.apache.tapestry.util.text.ICharacterTranslator}.
025     * 
026     * @author Howard M. Lewis Ship
027     * @since 4.0
028     */
029    public class AbstractMarkupFilter implements MarkupFilter
030    {
031        private final ICharacterTranslator _translator;
032    
033        protected AbstractMarkupFilter(ICharacterTranslator translator)
034        {
035            Defense.notNull(translator, "translator");
036    
037            _translator = translator;
038        }
039    
040        public void print(PrintWriter writer, char[] data, int offset, int length, boolean escapeQuotes)
041        {
042            MarkupFilterUtils.print(writer, data, offset, length, escapeQuotes, _translator);
043        }
044    }