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package org.seasar.cubby.plugins.s2.el; |
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import static org.seasar.framework.message.MessageFormatter.getMessage; |
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import java.beans.FeatureDescriptor; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.List; |
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import javax.el.ELContext; |
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import javax.el.ELException; |
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import javax.el.ELResolver; |
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import javax.el.PropertyNotFoundException; |
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import javax.el.PropertyNotWritableException; |
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import org.seasar.cubby.spi.beans.Attribute; |
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import org.seasar.cubby.spi.beans.BeanDesc; |
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import org.seasar.cubby.spi.beans.BeanDescFactory; |
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public class S2BeanELResolver extends ELResolver { |
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private final boolean readOnly; |
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public S2BeanELResolver() { |
50 | 0 | this(false); |
51 | 0 | } |
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public S2BeanELResolver(final boolean readOnly) { |
60 | 0 | super(); |
61 | 0 | this.readOnly = readOnly; |
62 | 0 | } |
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@Override |
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public Object getValue(final ELContext context, final Object base, |
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final Object property) throws NullPointerException, |
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PropertyNotFoundException, ELException { |
71 | 0 | if (context == null) { |
72 | 0 | throw new NullPointerException(); |
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} |
74 | 0 | if (base == null || property == null) { |
75 | 0 | return null; |
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} |
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|
78 | 0 | final String propertyName = property.toString(); |
79 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
80 | 0 | if (!beanDesc.hasPropertyAttribute(propertyName)) { |
81 | 0 | return null; |
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} |
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try { |
85 | 0 | final Attribute attributeDesc = beanDesc |
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.getPropertyAttribute(propertyName); |
87 | 0 | final Object value = attributeDesc.getValue(base); |
88 | 0 | context.setPropertyResolved(true); |
89 | 0 | return value; |
90 | 0 | } catch (final Exception e) { |
91 | 0 | return null; |
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} |
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} |
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@Override |
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public Class<?> getType(final ELContext context, final Object base, |
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final Object property) { |
101 | 0 | if (context == null) { |
102 | 0 | throw new NullPointerException(); |
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} |
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105 | 0 | if (base == null || property == null) { |
106 | 0 | return null; |
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} |
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109 | 0 | final String propertyName = property.toString(); |
110 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
111 | 0 | if (!beanDesc.hasPropertyAttribute(propertyName)) { |
112 | 0 | return null; |
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} |
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try { |
116 | 0 | final Attribute attributeDesc = beanDesc |
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.getPropertyAttribute(propertyName); |
118 | 0 | final Class<?> propertyType = attributeDesc.getType(); |
119 | 0 | context.setPropertyResolved(true); |
120 | 0 | return propertyType; |
121 | 0 | } catch (final Exception e) { |
122 | 0 | return null; |
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} |
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} |
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@Override |
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public void setValue(final ELContext context, final Object base, |
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final Object property, final Object value) { |
132 | 0 | if (context == null) { |
133 | 0 | throw new NullPointerException(); |
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} |
135 | 0 | if (base == null || property == null) { |
136 | 0 | return; |
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} |
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|
139 | 0 | final String propertyName = property.toString(); |
140 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
141 | 0 | if (!beanDesc.hasPropertyAttribute(propertyName)) { |
142 | 0 | return; |
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} |
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|
145 | 0 | if (this.readOnly) { |
146 | 0 | throw new PropertyNotWritableException(getMessage("ECUB0001", |
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new Object[] { base.getClass().getName() })); |
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} |
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try { |
151 | 0 | final Attribute attributeDesc = beanDesc |
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.getPropertyAttribute(propertyName); |
153 | 0 | attributeDesc.setValue(base, value); |
154 | 0 | context.setPropertyResolved(true); |
155 | 0 | } catch (final Exception e) { |
156 | 0 | } |
157 | 0 | } |
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@Override |
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public boolean isReadOnly(final ELContext context, final Object base, |
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final Object property) { |
165 | 0 | if (context == null) { |
166 | 0 | throw new NullPointerException(); |
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} |
168 | 0 | if (base == null || property == null) { |
169 | 0 | return false; |
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} |
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172 | 0 | final String propertyName = property.toString(); |
173 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
174 | 0 | if (!beanDesc.hasPropertyAttribute(propertyName)) { |
175 | 0 | return true; |
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} |
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178 | 0 | if (this.readOnly) { |
179 | 0 | return true; |
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} |
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try { |
183 | 0 | final Attribute attributeDesc = beanDesc |
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.getPropertyAttribute(propertyName); |
185 | 0 | final boolean readOnly = !attributeDesc.isWritable(); |
186 | 0 | context.setPropertyResolved(true); |
187 | 0 | return readOnly; |
188 | 0 | } catch (final Exception e) { |
189 | 0 | return false; |
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} |
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} |
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@Override |
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public Iterator<FeatureDescriptor> getFeatureDescriptors( |
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final ELContext context, final Object base) { |
199 | 0 | if (context == null) { |
200 | 0 | throw new NullPointerException(); |
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} |
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|
203 | 0 | if (base == null) { |
204 | 0 | return null; |
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} |
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|
207 | 0 | final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(base.getClass()); |
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try { |
209 | 0 | final List<FeatureDescriptor> descriptors = new ArrayList<FeatureDescriptor>(); |
210 | 0 | for (final Attribute attributeDesc : beanDesc |
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.findtPropertyAttributes()) { |
212 | 0 | final String propertyName = attributeDesc.getName(); |
213 | 0 | final FeatureDescriptor descriptor = new FeatureDescriptor(); |
214 | 0 | descriptor.setDisplayName(propertyName); |
215 | 0 | descriptor.setExpert(false); |
216 | 0 | descriptor.setHidden(false); |
217 | 0 | descriptor.setName(propertyName); |
218 | 0 | descriptor.setPreferred(true); |
219 | 0 | descriptor.setValue(RESOLVABLE_AT_DESIGN_TIME, Boolean.TRUE); |
220 | 0 | descriptor.setValue(TYPE, attributeDesc.getType()); |
221 | 0 | descriptors.add(descriptor); |
222 | 0 | } |
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|
224 | 0 | return descriptors.iterator(); |
225 | 0 | } catch (final Exception e) { |
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} |
228 | 0 | return null; |
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} |
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@Override |
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public Class<?> getCommonPropertyType(final ELContext context, |
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final Object base) { |
237 | 0 | if (context == null) { |
238 | 0 | throw new NullPointerException(); |
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} |
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|
241 | 0 | if (base != null) { |
242 | 0 | return Object.class; |
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} |
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|
245 | 0 | return null; |
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} |
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} |