Clover coverage report - Code Coverage for tapestry release 4.0-alpha-3
Coverage timestamp: Mon May 16 2005 09:05:49 EDT
file stats: LOC: 118   Methods: 2
NCLOC: 70   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
FieldBeanInitializer.java 0% 0% 0% 0%
coverage
 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.bean;
 16   
 
 17   
 import java.lang.reflect.Field;
 18   
 
 19   
 import org.apache.hivemind.ApplicationRuntimeException;
 20   
 import org.apache.hivemind.ClassResolver;
 21   
 import org.apache.tapestry.IBeanProvider;
 22   
 import org.apache.tapestry.Tapestry;
 23   
 
 24   
 /**
 25   
  *  Initializes a bean with the value of a public static field.
 26   
  *
 27   
  *  @author Howard Lewis Ship
 28   
  *  @since 1.0.8
 29   
  *
 30   
  **/
 31   
 
 32   
 public class FieldBeanInitializer extends AbstractBeanInitializer
 33   
 {
 34   
     protected String _fieldName;
 35   
     protected Object _fieldValue;
 36   
     private boolean _fieldResolved = false;
 37   
 
 38  0
     public synchronized void setBeanProperty(IBeanProvider provider, Object bean)
 39   
     {
 40  0
         ClassResolver resolver = provider.getClassResolver();
 41   
 
 42  0
         if (!_fieldResolved)
 43  0
             resolveField(resolver);
 44   
 
 45  0
         setBeanProperty(bean, _fieldValue);
 46   
     }
 47   
 
 48  0
     private void resolveField(ClassResolver resolver)
 49   
     {
 50  0
         if (_fieldResolved)
 51  0
             return;
 52   
 
 53   
         // This is all copied out of of FieldBinding!!
 54   
 
 55  0
         int dotx = _fieldName.lastIndexOf('.');
 56   
 
 57  0
         if (dotx < 0)
 58  0
             throw new ApplicationRuntimeException(
 59   
                 Tapestry.format("invalid-field-name", _fieldName));
 60   
 
 61  0
         String className = _fieldName.substring(0, dotx);
 62  0
         String simpleFieldName = _fieldName.substring(dotx + 1);
 63   
 
 64   
         // Simple class names are assumed to be in the java.lang package.
 65   
 
 66  0
         if (className.indexOf('.') < 0)
 67  0
             className = "java.lang." + className;
 68   
 
 69  0
         Class targetClass = null;
 70   
 
 71  0
         try
 72   
         {
 73  0
             targetClass = resolver.findClass(className);
 74   
         }
 75   
         catch (Throwable t)
 76   
         {
 77  0
             throw new ApplicationRuntimeException(
 78   
                 Tapestry.format("unable-to-resolve-class", className),
 79   
                 t);
 80   
         }
 81   
 
 82  0
         Field field = null;
 83   
 
 84  0
         try
 85   
         {
 86  0
             field = targetClass.getField(simpleFieldName);
 87   
         }
 88   
         catch (NoSuchFieldException ex)
 89   
         {
 90  0
             throw new ApplicationRuntimeException(
 91   
                 Tapestry.format("field-not-defined", _fieldName),
 92   
                 ex);
 93   
         }
 94   
 
 95   
         // Get the value of the field.  null means look for it as a static
 96   
         // variable.
 97   
 
 98  0
         try
 99   
         {
 100  0
             _fieldValue = field.get(null);
 101   
         }
 102   
         catch (IllegalAccessException ex)
 103   
         {
 104  0
             throw new ApplicationRuntimeException(
 105   
                 Tapestry.format("illegal-field-access", _fieldName),
 106   
                 ex);
 107   
         }
 108   
         catch (NullPointerException ex)
 109   
         {
 110  0
             throw new ApplicationRuntimeException(
 111   
                 Tapestry.format("field-is-instance", _fieldName),
 112   
                 ex);
 113   
         }
 114   
 
 115  0
         _fieldResolved = true;
 116   
     }
 117   
 
 118   
 }