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1
22 package org.jboss.xb.binding;
23
24 import java.lang.reflect.Array  ;
25 import java.lang.reflect.Constructor ;
26 import java.util.ArrayList ;
27 import java.util.List ;
28 import javax.xml.namespace.QName ;
29 import org.jboss.xb.binding.sunday.unmarshalling.impl.runtime.RtUtil;
30
31
35 public interface GenericValueContainer
36 {
37 class FACTORY
38 {
39 public static GenericValueContainer array(final Class itemClass)
40 {
41 return array(null, null, itemClass);
42 }
43
44 public static GenericValueContainer array(final Class wrapperClass,
45 final String itemProperty,
46 final Class itemClass)
47 {
48 return new GenericValueContainer()
49 {
50 private final Class wrapperType = wrapperClass;
51 private final String itemProp = itemProperty;
52 private final Class itemType = itemClass;
53 private final List items = new ArrayList ();
54
55 public void addChild(QName name, Object value)
56 {
57 items.add(value);
58 }
59
60 public Object instantiate()
61 {
62
97 Object arr = Array.newInstance(itemType, items.size());
98 for(int i = 0; i < items.size(); ++i)
99 {
100 try
101 {
102 Array.set(arr, i, items.get(i));
103 }
104 catch(IllegalArgumentException e)
105 {
106 throw new JBossXBRuntimeException("Failed to set " +
107 items.get(i) +
108 " as an item of array " + arr
109 );
110 }
111 }
112
113 Object result = arr;
114 if(wrapperType != null)
116 {
117 Constructor ctor = null;
118 try
119 {
120 try
121 {
122 ctor = wrapperType.getConstructor(null);
123 result = ctor.newInstance(null);
124 RtUtil.set(result, arr, itemProp, null, false, null);
125 }
126 catch(NoSuchMethodException e)
127 {
128 Constructor [] ctors = wrapperType.getConstructors();
129 for(int i = 0; i < ctors.length; ++i)
130 {
131 Class [] types = ctors[i].getParameterTypes();
132 if(types.length == 1 && types[0].isAssignableFrom(arr.getClass()))
133 {
134 ctor = ctors[i];
135 break;
136 }
137 }
138
139 if(ctor == null)
140 {
141 throw new JBossXBRuntimeException("Failed to find an appropriate ctor in " +
142 wrapperType +
143 " to wrap " + arr
144 );
145 }
146
147 result = ctor.newInstance(new Object []{arr});
148 }
149 }
150 catch(JBossXBRuntimeException e)
151 {
152 throw e;
153 }
154 catch(Exception e)
155 {
156 throw new JBossXBRuntimeException(
157 "Failed to initialize array wrapper " + wrapperType + " for " + arr, e
158 );
159 }
160 }
161 return result;
162 }
163
164 public Class getTargetClass()
165 {
166 return Array.newInstance(itemType, 0).getClass();
169 }
170
171 public String toString()
172 {
173 return super.toString() + "array";
174 }
175 };
176 }
177 }
178
179 void addChild(QName name, Object value);
180
181 Object instantiate();
182
183 Class getTargetClass();
184 }
185 |
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