HolderUtils


1   /*
2    * Copyright 2005 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   *
16   * $Header:$
17   */
18  package org.apache.beehive.controls.system.webservice.utils;
19  
20  import java.lang.reflect.Field  ;
21  
22  import javax.xml.rpc.holders.Holder  ;
23  
24  public class HolderUtils {
25  
26      public static void stuffHolderValue(Holder   holder, Object   value)
27              throws NoSuchFieldException  , IllegalAccessException   {
28  
29          Field   valueField = holder.getClass().getField("value");
30          Object   curValueInHolder = valueField.get(holder);
31          Class   classOfValueFieldInHolder;
32          if (curValueInHolder == null) {
33              classOfValueFieldInHolder = valueField.getType();
34          } else {
35              classOfValueFieldInHolder = curValueInHolder.getClass();
36          }
37  
38          if (null == value) {
39              setFieldInObject(valueField, holder, null);
40              return;
41          }
42          if (classOfValueFieldInHolder.isAssignableFrom(value.getClass())) {
43              setFieldInObject(valueField, holder, value);
44  
45          } else { // we need to convert the class to the holder type
46  
47              try {
48                  Object   convertedValue = org.apache.axis.utils.JavaUtils
49                          .convert(value, classOfValueFieldInHolder);
50                  setFieldInObject(valueField, holder, convertedValue);
51              } catch (IllegalArgumentException   e) {
52  
53                  e.printStackTrace();
54              } catch (IllegalAccessException   e) {
55  
56                  e.printStackTrace();
57              }
58          }
59  
60      }
61  
62      private static void setFieldInObject(Field   valueField, Object   destObject,
63              Object   value) throws IllegalArgumentException  ,
64              IllegalAccessException   {
65          if (valueField.getType().isPrimitive()) {
66              if (value == null)
67                  ; // Don't need to set anything
68              else
69                  valueField.set(destObject, value);
70          } else {
71              valueField.set(destObject, value);
72          }
73      }
74  
75  }
76
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