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1   package org.apache.commons.digester3.examples.plugins.pipeline;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one or more
5    * contributor license agreements.  See the NOTICE file distributed with
6    * this work for additional information regarding copyright ownership.
7    * The ASF licenses this file to You under the Apache License, Version 2.0
8    * (the "License"); you may not use this file except in compliance with
9    * the License.  You may obtain a copy of the License at
10   * 
11   *      http://www.apache.org/licenses/LICENSE-2.0
12   * 
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   */ 
19  
20  /**
21   * An implementation of the Transform interface which converts all
22   * input text to either upper or lower case.
23   * <p>
24   * Note that because it doesn't use any nested tags for configuration,
25   * just xml attributes which map 1:1 onto bean property-setter methods,
26   * there is no need to define any custom addRules method to use this
27   * as a Digester plugin class.
28   */
29  public class CaseTransform
30      implements Transform
31  {
32  
33      private boolean toLower = true;
34  
35      public void setCase( String caseType )
36      {
37          if ( caseType.equalsIgnoreCase( "upper" ) )
38          {
39              toLower = false;
40          }
41          else
42          {
43              toLower = true;
44          }
45      }
46  
47      public String transform( String s )
48      {
49          if ( toLower )
50          {
51              return s.toLowerCase();
52          }
53          return s.toUpperCase();
54      }
55  
56  }