Clover coverage report - Code Coverage for hivemind release 1.0-rc-1
Coverage timestamp: Wed Aug 25 2004 13:06:02 EDT
file stats: LOC: 146   Methods: 9
NCLOC: 83   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
PropertyAdaptor.java 100% 100% 100% 100%
coverage
 1   
 //  Copyright 2004 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.hivemind.util;
 16   
 
 17   
 import java.lang.reflect.Method;
 18   
 
 19   
 import org.apache.hivemind.ApplicationRuntimeException;
 20   
 
 21   
 /**
 22   
  * Used to manage dynamic access to a property of a specific class.
 23   
  *
 24   
  * @author Howard Lewis Ship
 25   
  */
 26   
 public class PropertyAdaptor
 27   
 {
 28   
     private String _propertyName;
 29   
     private Class _propertyType;
 30   
     private Method _readMethod;
 31   
 
 32   
     private Method _writeMethod;
 33   
 
 34  209
     PropertyAdaptor(String propertyName, Class propertyType, Method readMethod, Method writeMethod)
 35   
     {
 36  209
         _propertyName = propertyName;
 37  209
         _propertyType = propertyType;
 38  209
         _readMethod = readMethod;
 39  209
         _writeMethod = writeMethod;
 40   
     }
 41   
 
 42   
     /**
 43   
      * Returns the name of the method used to read the property, or null if the property is
 44   
      * not readable.
 45   
      */
 46  2
     public String getReadMethodName()
 47   
     {
 48  2
         return _readMethod == null ? null : _readMethod.getName();
 49   
     }
 50   
 
 51   
     /**
 52   
      * Returns the name of the method used to write the property, or null if the property
 53   
      * is not writable.
 54   
      */
 55  2
     public String getWriteMethodName()
 56   
     {
 57  2
         return _writeMethod == null ? null : _writeMethod.getName();
 58   
     }
 59   
 
 60  893
     public String getPropertyName()
 61   
     {
 62  893
         return _propertyName;
 63   
     }
 64   
 
 65  6175
     public Class getPropertyType()
 66   
     {
 67  6175
         return _propertyType;
 68   
     }
 69   
 
 70   
     /**
 71   
      * Updates the property of the target object.
 72   
      * 
 73   
      * @param target the object to update
 74   
      * @param value the value to be stored into the target object property
 75   
      */
 76  6113
     public void write(Object target, Object value)
 77   
     {
 78  6113
         if (_writeMethod == null)
 79  1
             throw new ApplicationRuntimeException(
 80   
                 UtilMessages.noPropertyWriter(_propertyName, target),
 81   
                 target,
 82   
                 null,
 83   
                 null);
 84   
 
 85  6112
         try
 86   
         {
 87  6112
             _writeMethod.invoke(target, new Object[] { value });
 88   
 
 89   
         }
 90   
         catch (Exception ex)
 91   
         {
 92  2
             throw new ApplicationRuntimeException(
 93   
                 UtilMessages.writeFailure(_propertyName, target, ex),
 94   
                 target,
 95   
                 null,
 96   
                 ex);
 97   
         }
 98   
     }
 99   
 
 100   
     /**
 101   
      * Returns true if there's a write method for the property.
 102   
      */
 103  1611
     public boolean isWritable()
 104   
     {
 105  1611
         return _writeMethod != null;
 106   
     }
 107   
 
 108   
     /**
 109   
      * Reads the property of the target object.
 110   
      * 
 111   
      * @param target the object to read a property from
 112   
      */
 113  8
     public Object read(Object target)
 114   
     {
 115  8
         if (_readMethod == null)
 116  1
             throw new ApplicationRuntimeException(
 117   
                 UtilMessages.noReader(_propertyName, target),
 118   
                 target,
 119   
                 null,
 120   
                 null);
 121   
 
 122  7
         try
 123   
         {
 124  7
             return _readMethod.invoke(target, null);
 125   
 
 126   
         }
 127   
         catch (Exception ex)
 128   
         {
 129  1
             throw new ApplicationRuntimeException(
 130   
                 UtilMessages.readFailure(_propertyName, target, ex),
 131   
                 target,
 132   
                 null,
 133   
                 ex);
 134   
         }
 135   
     }
 136   
 
 137   
     /**
 138   
      * Returns true if there's a read method for the property.
 139   
      */
 140   
 
 141  6
     public boolean isReadable()
 142   
     {
 143  6
         return _readMethod != null;
 144   
     }
 145   
 }
 146