1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
package org.seasar.cubby.plugins.s2.el; |
17 | |
|
18 | |
import static org.seasar.framework.message.MessageFormatter.getMessage; |
19 | |
|
20 | |
import java.beans.FeatureDescriptor; |
21 | |
import java.util.ArrayList; |
22 | |
import java.util.Iterator; |
23 | |
import java.util.List; |
24 | |
|
25 | |
import javax.el.ELContext; |
26 | |
import javax.el.ELException; |
27 | |
import javax.el.ELResolver; |
28 | |
import javax.el.PropertyNotFoundException; |
29 | |
import javax.el.PropertyNotWritableException; |
30 | |
|
31 | |
import org.seasar.cubby.spi.beans.Attribute; |
32 | |
import org.seasar.cubby.spi.beans.BeanDesc; |
33 | |
import org.seasar.cubby.spi.beans.BeanDescFactory; |
34 | |
|
35 | |
|
36 | |
|
37 | |
|
38 | |
|
39 | |
|
40 | |
public class S2BeanELResolver extends ELResolver { |
41 | |
|
42 | |
|
43 | |
private final boolean readOnly; |
44 | |
|
45 | |
|
46 | |
|
47 | |
|
48 | |
public S2BeanELResolver() { |
49 | 0 | this(false); |
50 | 0 | } |
51 | |
|
52 | |
|
53 | |
|
54 | |
|
55 | |
|
56 | |
|
57 | |
|
58 | |
public S2BeanELResolver(final boolean readOnly) { |
59 | 0 | super(); |
60 | 0 | this.readOnly = readOnly; |
61 | 0 | } |
62 | |
|
63 | |
|
64 | |
|
65 | |
|
66 | |
@Override |
67 | |
public Object getValue(final ELContext context, final Object base, |
68 | |
final Object property) throws NullPointerException, |
69 | |
PropertyNotFoundException, ELException { |
70 | 0 | if (context == null) { |
71 | 0 | throw new NullPointerException(); |
72 | |
} |
73 | 0 | if (base == null || property == null) { |
74 | 0 | return null; |
75 | |
} |
76 | |
|
77 | 0 | final String propertyName = property.toString(); |
78 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
79 | 0 | if (!beanDesc.hasPropertyAttribute(propertyName)) { |
80 | 0 | return null; |
81 | |
} |
82 | |
|
83 | |
try { |
84 | 0 | final Attribute attributeDesc = beanDesc |
85 | |
.getPropertyAttribute(propertyName); |
86 | 0 | final Object value = attributeDesc.getValue(base); |
87 | 0 | context.setPropertyResolved(true); |
88 | 0 | return value; |
89 | 0 | } catch (final Exception e) { |
90 | 0 | return null; |
91 | |
} |
92 | |
} |
93 | |
|
94 | |
|
95 | |
|
96 | |
|
97 | |
@Override |
98 | |
public Class<?> getType(final ELContext context, final Object base, |
99 | |
final Object property) { |
100 | 0 | if (context == null) { |
101 | 0 | throw new NullPointerException(); |
102 | |
} |
103 | |
|
104 | 0 | if (base == null || property == null) { |
105 | 0 | return null; |
106 | |
} |
107 | |
|
108 | 0 | final String propertyName = property.toString(); |
109 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
110 | 0 | if (!beanDesc.hasPropertyAttribute(propertyName)) { |
111 | 0 | return null; |
112 | |
} |
113 | |
|
114 | |
try { |
115 | 0 | final Attribute attributeDesc = beanDesc |
116 | |
.getPropertyAttribute(propertyName); |
117 | 0 | final Class<?> propertyType = attributeDesc.getType(); |
118 | 0 | context.setPropertyResolved(true); |
119 | 0 | return propertyType; |
120 | 0 | } catch (final Exception e) { |
121 | 0 | return null; |
122 | |
} |
123 | |
} |
124 | |
|
125 | |
|
126 | |
|
127 | |
|
128 | |
@Override |
129 | |
public void setValue(final ELContext context, final Object base, |
130 | |
final Object property, final Object value) { |
131 | 0 | if (context == null) { |
132 | 0 | throw new NullPointerException(); |
133 | |
} |
134 | 0 | if (base == null || property == null) { |
135 | 0 | return; |
136 | |
} |
137 | |
|
138 | 0 | final String propertyName = property.toString(); |
139 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
140 | 0 | if (!beanDesc.hasPropertyAttribute(propertyName)) { |
141 | 0 | return; |
142 | |
} |
143 | |
|
144 | 0 | if (this.readOnly) { |
145 | 0 | throw new PropertyNotWritableException(getMessage("ECUB0001", |
146 | |
new Object[] { base.getClass().getName() })); |
147 | |
} |
148 | |
|
149 | |
try { |
150 | 0 | final Attribute attributeDesc = beanDesc |
151 | |
.getPropertyAttribute(propertyName); |
152 | 0 | attributeDesc.setValue(base, value); |
153 | 0 | context.setPropertyResolved(true); |
154 | 0 | } catch (final Exception e) { |
155 | 0 | } |
156 | 0 | } |
157 | |
|
158 | |
|
159 | |
|
160 | |
|
161 | |
@Override |
162 | |
public boolean isReadOnly(final ELContext context, final Object base, |
163 | |
final Object property) { |
164 | 0 | if (context == null) { |
165 | 0 | throw new NullPointerException(); |
166 | |
} |
167 | 0 | if (base == null || property == null) { |
168 | 0 | return false; |
169 | |
} |
170 | |
|
171 | 0 | final String propertyName = property.toString(); |
172 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
173 | 0 | if (!beanDesc.hasPropertyAttribute(propertyName)) { |
174 | 0 | return true; |
175 | |
} |
176 | |
|
177 | 0 | if (this.readOnly) { |
178 | 0 | return true; |
179 | |
} |
180 | |
|
181 | |
try { |
182 | 0 | final Attribute attributeDesc = beanDesc |
183 | |
.getPropertyAttribute(propertyName); |
184 | 0 | final boolean readOnly = !attributeDesc.isWritable(); |
185 | 0 | context.setPropertyResolved(true); |
186 | 0 | return readOnly; |
187 | 0 | } catch (final Exception e) { |
188 | 0 | return false; |
189 | |
} |
190 | |
} |
191 | |
|
192 | |
|
193 | |
|
194 | |
|
195 | |
@Override |
196 | |
public Iterator<FeatureDescriptor> getFeatureDescriptors( |
197 | |
final ELContext context, final Object base) { |
198 | 0 | if (context == null) { |
199 | 0 | throw new NullPointerException(); |
200 | |
} |
201 | |
|
202 | 0 | if (base == null) { |
203 | 0 | return null; |
204 | |
} |
205 | |
|
206 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
207 | |
try { |
208 | 0 | final List<FeatureDescriptor> descriptors = new ArrayList<FeatureDescriptor>(); |
209 | 0 | for (final Attribute attributeDesc : beanDesc |
210 | |
.findtPropertyAttributes()) { |
211 | 0 | final String propertyName = attributeDesc.getName(); |
212 | 0 | final FeatureDescriptor descriptor = new FeatureDescriptor(); |
213 | 0 | descriptor.setDisplayName(propertyName); |
214 | 0 | descriptor.setExpert(false); |
215 | 0 | descriptor.setHidden(false); |
216 | 0 | descriptor.setName(propertyName); |
217 | 0 | descriptor.setPreferred(true); |
218 | 0 | descriptor.setValue(RESOLVABLE_AT_DESIGN_TIME, Boolean.TRUE); |
219 | 0 | descriptor.setValue(TYPE, attributeDesc.getType()); |
220 | 0 | descriptors.add(descriptor); |
221 | 0 | } |
222 | |
|
223 | 0 | return descriptors.iterator(); |
224 | 0 | } catch (final Exception e) { |
225 | |
|
226 | |
} |
227 | 0 | return null; |
228 | |
} |
229 | |
|
230 | |
|
231 | |
|
232 | |
|
233 | |
@Override |
234 | |
public Class<?> getCommonPropertyType(final ELContext context, |
235 | |
final Object base) { |
236 | 0 | if (context == null) { |
237 | 0 | throw new NullPointerException(); |
238 | |
} |
239 | |
|
240 | 0 | if (base != null) { |
241 | 0 | return Object.class; |
242 | |
} |
243 | |
|
244 | 0 | return null; |
245 | |
} |
246 | |
|
247 | |
} |