Coverage Report - org.apache.tapestry.coerce.TypeConverterWrapper
 
Classes in this File Line Coverage Branch Coverage Complexity
TypeConverterWrapper
0%
0/18
0%
0/6
2.25
 
 1  
 // Copyright 2004, 2005 The Apache Software Foundation
 2  
 //
 3  
 // Licensed under the Apache License, Version 2.0 (the "License");
 4  
 // you may not use this file except in compliance with the License.
 5  
 // You may obtain a copy of the License at
 6  
 //
 7  
 //     http://www.apache.org/licenses/LICENSE-2.0
 8  
 //
 9  
 // Unless required by applicable law or agreed to in writing, software
 10  
 // distributed under the License is distributed on an "AS IS" BASIS,
 11  
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12  
 // See the License for the specific language governing permissions and
 13  
 // limitations under the License.
 14  
 
 15  
 package org.apache.tapestry.coerce;
 16  
 
 17  
 import java.util.Iterator;
 18  
 import java.util.List;
 19  
 
 20  
 import org.apache.hivemind.lib.util.StrategyRegistry;
 21  
 import org.apache.hivemind.lib.util.StrategyRegistryImpl;
 22  
 
 23  
 /**
 24  
  * A service implementation that works around an
 25  
  * {@link org.apache.hivemind.lib.util.StrategyRegistry}. The registry is contructed from a
 26  
  * configuration that follows the <code>tapestry.coerce.Converters</code> schema (a List of
 27  
  * {@link org.apache.tapestry.coerce.TypeConverterContribution}plus an additional converter for
 28  
  * nulls.
 29  
  * 
 30  
  * @author Howard M. Lewis Ship
 31  
  * @since 4.0
 32  
  */
 33  0
 public final class TypeConverterWrapper implements TypeConverter
 34  
 {
 35  0
     private StrategyRegistry _registry = new StrategyRegistryImpl();
 36  
 
 37  
     private List _contributions;
 38  
 
 39  
     private TypeConverter _nullConverter;
 40  
 
 41  
     public void initializeService()
 42  
     {
 43  0
         Iterator i = _contributions.iterator();
 44  
 
 45  0
         while (i.hasNext())
 46  
         {
 47  0
             TypeConverterContribution c = (TypeConverterContribution) i.next();
 48  
 
 49  0
             _registry.register(c.getSubjectClass(), c.getConverter());
 50  0
         }
 51  0
     }
 52  
 
 53  
     public Object convertValue(Object value)
 54  
     {
 55  0
         if (value == null)
 56  
         {
 57  0
             if (_nullConverter == null)
 58  0
                 return null;
 59  
 
 60  0
             return _nullConverter.convertValue(null);
 61  
         }
 62  
 
 63  0
         TypeConverter delegate = (TypeConverter) _registry.getStrategy(value.getClass());
 64  
 
 65  0
         return delegate.convertValue(value);
 66  
     }
 67  
 
 68  
     /**
 69  
      * Sets the List of {@link org.apache.tapestry.coerce.TypeConverterContribution}s.
 70  
      */
 71  
 
 72  
     public void setContributions(List contributions)
 73  
     {
 74  0
         _contributions = contributions;
 75  0
     }
 76  
 
 77  
     /**
 78  
      * Sets the converter used to convert null.
 79  
      */
 80  
 
 81  
     public void setNullConverter(TypeConverter nullConverter)
 82  
     {
 83  0
         _nullConverter = nullConverter;
 84  0
     }
 85  
 }