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1
55 package org.jboss.axis.utils;
56
57 import org.jboss.logging.Logger;
58
59 import java.beans.IndexedPropertyDescriptor  ;
60 import java.beans.PropertyDescriptor ;
61 import java.lang.reflect.Array ;
62 import java.lang.reflect.InvocationTargetException ;
63 import java.lang.reflect.Method ;
64
65
66
82 public class BeanPropertyDescriptor
83 {
84 private static Logger log = Logger.getLogger(BeanPropertyDescriptor.class.getName());
85
86 protected PropertyDescriptor myPD = null;
87
88 protected static final Object [] noArgs = new Object []{};
89
90
95 public BeanPropertyDescriptor(PropertyDescriptor pd)
96 {
97 myPD = pd;
98 }
99
100
103 protected BeanPropertyDescriptor()
104 {
105 }
106
107
110 public String getName()
111 {
112 return myPD.getName();
113 }
114
115
120 public boolean isReadable()
121 {
122 return (myPD.getReadMethod() != null);
123 }
124
125
130 public boolean isWriteable()
131 {
132 return (myPD.getWriteMethod() != null);
133 }
134
135
140 public boolean isIndexed()
141 {
142 return (myPD instanceof IndexedPropertyDescriptor );
143 }
144
145
151 public Object get(Object obj)
152 throws InvocationTargetException , IllegalAccessException
153 {
154
155 if (obj == null)
156 throw new IllegalArgumentException ("Target object cannot be null");
157
158 Method readMethod = myPD.getReadMethod();
159 log.debug("get: [method=" + readMethod + "]");
160 if (readMethod != null)
161 {
162 Object retObj = readMethod.invoke(obj, noArgs);
163 log.debug("got: " + retObj);
164 return retObj;
165 }
166 throw new IllegalAccessException (Messages.getMessage("badGetter00"));
167 }
168
169
175 public void set(Object obj, Object newValue)
176 throws InvocationTargetException , IllegalAccessException
177 {
178
179 if (obj == null)
180 throw new IllegalArgumentException ("Target object cannot be null");
181
182 Method writeMethod = myPD.getWriteMethod();
183 log.debug("set: [val=" + newValue + ",method=" + writeMethod + "]");
184 if (writeMethod != null)
185 {
186 writeMethod.invoke(obj, new Object []{newValue});
187 }
188 else
189 {
190 throw new IllegalAccessException (Messages.getMessage("badSetter00"));
191 }
192 }
193
194
201 public Object get(Object obj, int i)
202 throws InvocationTargetException , IllegalAccessException
203 {
204
205 if (obj == null)
206 throw new IllegalArgumentException ("Target object cannot be null");
207
208 if (!isIndexed())
209 {
210 return Array.get(get(obj), i);
211 }
212 else
213 {
214 IndexedPropertyDescriptor id = (IndexedPropertyDescriptor )myPD;
215 Method readMethod = id.getIndexedReadMethod();
216 log.debug("get: [method=" + readMethod + ",index=" + i + "]");
217 Object retObj = readMethod.invoke(obj, new Object []{new Integer (i)});
218 log.debug("got: " + retObj);
219 return retObj;
220 }
221 }
222
223
230 public void set(Object obj, int i, Object newValue)
231 throws InvocationTargetException , IllegalAccessException
232 {
233
234 if (obj == null)
235 throw new IllegalArgumentException ("Target object cannot be null");
236
237 if (isIndexed())
239 {
240 IndexedPropertyDescriptor id = (IndexedPropertyDescriptor )myPD;
241 growArrayToSize(obj, id.getIndexedPropertyType(), i);
242 id.getIndexedWriteMethod().invoke(obj,
243 new Object []{
244 new Integer (i), newValue});
245 }
246 else
247 {
248 Object array = get(obj);
249 if (array == null || Array.getLength(array) <= i)
250 {
251 Class componentType = getType().getComponentType();
252 growArrayToSize(obj, componentType, i);
253 array = get(obj);
254 }
255 Array.set(array, i, newValue);
256 }
257 }
258
259
268 protected void growArrayToSize(Object obj, Class componentType, int i) throws InvocationTargetException , IllegalAccessException
269 {
270
271 if (obj == null)
272 throw new IllegalArgumentException ("Target object cannot be null");
273
274 Object array = get(obj);
276 if (array == null || Array.getLength(array) <= i)
277 {
278 Object newArray = Array.newInstance(componentType, i + 1);
280 if (array != null)
282 {
283 System.arraycopy(array, 0, newArray, 0, Array.getLength(array));
284 }
285
286 set(obj, newArray);
288 }
289 }
290
291
296 public Class getType()
297 {
298 if (isIndexed())
299 {
300 return ((IndexedPropertyDescriptor )myPD).getIndexedPropertyType();
301 }
302 else
303 {
304 return myPD.getPropertyType();
305 }
306 }
307 }
308 |
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