001package org.apache.commons.digester3.examples.plugins.pipeline;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one or more
005 * contributor license agreements.  See the NOTICE file distributed with
006 * this work for additional information regarding copyright ownership.
007 * The ASF licenses this file to You under the Apache License, Version 2.0
008 * (the "License"); you may not use this file except in compliance with
009 * the License.  You may obtain a copy of the License at
010 * 
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 * 
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */ 
019
020/**
021 * An implementation of the Transform interface which converts all
022 * input text to either upper or lower case.
023 * <p>
024 * Note that because it doesn't use any nested tags for configuration,
025 * just xml attributes which map 1:1 onto bean property-setter methods,
026 * there is no need to define any custom addRules method to use this
027 * as a Digester plugin class.
028 */
029public class CaseTransform
030    implements Transform
031{
032
033    private boolean toLower = true;
034
035    public void setCase( String caseType )
036    {
037        if ( caseType.equalsIgnoreCase( "upper" ) )
038        {
039            toLower = false;
040        }
041        else
042        {
043            toLower = true;
044        }
045    }
046
047    public String transform( String s )
048    {
049        if ( toLower )
050        {
051            return s.toLowerCase();
052        }
053        return s.toUpperCase();
054    }
055
056}