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1
16 package org.apache.myfaces.config;
17
18 import org.apache.myfaces.config.element.*;
19 import org.apache.myfaces.util.ClassUtils;
20
21 import javax.faces.FacesException;
22 import javax.faces.application.Application;
23 import javax.faces.context.FacesContext;
24 import javax.faces.el.PropertyResolver;
25 import javax.faces.el.ValueBinding;
26 import javax.faces.webapp.UIComponentTag;
27 import java.util.*;
28
29
30
53 public class ManagedBeanBuilder
54 {
55 public Object  buildManagedBean(FacesContext facesContext, ManagedBean beanConfiguration) throws FacesException
56 {
57 Object bean = ClassUtils.newInstance(beanConfiguration.getManagedBeanClassName());
58
59 switch (beanConfiguration.getInitMode())
60 {
61 case ManagedBean.INIT_MODE_PROPERTIES:
62 try {
63 initializeProperties(facesContext, beanConfiguration
64 .getManagedProperties(), bean);
65 } catch (IllegalArgumentException e) {
66 throw new IllegalArgumentException (
67 e.getMessage()
68 + " for bean '"
69 + beanConfiguration.getManagedBeanName()
70 + "' check the configuration to make sure all properties correspond with get/set methods");
71 }
72 break;
73
74 case ManagedBean.INIT_MODE_MAP:
75 if (!(bean instanceof Map))
76 {
77 throw new IllegalArgumentException ("Class " + bean.getClass().getName()
78 + " of managed bean "
79 + beanConfiguration.getManagedBeanName()
80 + " is not a Map.");
81 }
82 initializeMap(facesContext, beanConfiguration.getMapEntries(), (Map) bean);
83 break;
84
85 case ManagedBean.INIT_MODE_LIST:
86 if (!(bean instanceof List))
87 {
88 throw new IllegalArgumentException ("Class " + bean.getClass().getName()
89 + " of managed bean "
90 + beanConfiguration.getManagedBeanName()
91 + " is not a List.");
92 }
93 initializeList(facesContext, beanConfiguration.getListEntries(), (List) bean);
94 break;
95
96 case ManagedBean.INIT_MODE_NO_INIT:
97 break;
99
100 default:
101 throw new IllegalStateException ("Unknown managed bean type "
102 + bean.getClass().getName() + " for managed bean "
103 + beanConfiguration.getManagedBeanName() + '.');
104 }
105 return bean;
106 }
107
108
109 private void initializeProperties(FacesContext facesContext, Iterator managedProperties, Object bean)
110 {
111 while (managedProperties.hasNext())
112 {
113 ManagedProperty property = (ManagedProperty) managedProperties.next();
114 Object value = null;
115
116 switch (property.getType())
117 {
118 case ManagedProperty.TYPE_LIST:
119 value = new ArrayList();
120 initializeList(facesContext, property.getListEntries(), (List) value);
121 break;
122 case ManagedProperty.TYPE_MAP:
123 value = new HashMap();
124 initializeMap(facesContext, property.getMapEntries(), (Map) value);
125 break;
126 case ManagedProperty.TYPE_NULL:
127 value = null;
128 break;
129 case ManagedProperty.TYPE_VALUE:
130 value = property.getRuntimeValue(facesContext);
131 break;
132 }
133 PropertyResolver propertyResolver =
134 facesContext.getApplication().getPropertyResolver();
135 Class propertyClass = null;
136
137 if (property.getPropertyClass() == null)
138 {
139 propertyClass = propertyResolver
140 .getType(bean, property.getPropertyName());
141 }
142 else
143 {
144 propertyClass = ClassUtils
145 .simpleJavaTypeToClass(property.getPropertyClass());
146 }
147 if(null == propertyClass) {
148 throw new IllegalArgumentException ("unable to find the type of property " + property.getPropertyName());
149 }
150 Object coercedValue = ClassUtils.convertToType(value, propertyClass);
151 propertyResolver.setValue(
152 bean, property.getPropertyName(), coercedValue);
153 }
154 }
155
156
157 private void initializeMap(FacesContext facesContext, MapEntries mapEntries, Map map)
158 {
159 Application application = facesContext.getApplication();
160 Class keyClass = (mapEntries.getKeyClass() == null)
161 ? String .class : ClassUtils.simpleJavaTypeToClass(mapEntries.getKeyClass());
162 Class valueClass = (mapEntries.getValueClass() == null)
163 ? String .class : ClassUtils.simpleJavaTypeToClass(mapEntries.getValueClass());
164 ValueBinding valueBinding;
165
166 for (Iterator iterator = mapEntries.getMapEntries(); iterator.hasNext();)
167 {
168 MapEntry entry = (MapEntry) iterator.next();
169 Object key = entry.getKey();
170
171 if (UIComponentTag.isValueReference((String ) key))
172 {
173 valueBinding = application.createValueBinding((String ) key);
174 key = valueBinding.getValue(facesContext);
175 }
176
177 if (entry.isNullValue())
178 {
179 map.put(ClassUtils.convertToType(key, keyClass), null);
180 }
181 else
182 {
183 Object value = entry.getValue();
184 if (UIComponentTag.isValueReference((String ) value))
185 {
186 valueBinding = application.createValueBinding((String ) value);
187 value = valueBinding.getValue(facesContext);
188 }
189 map.put(ClassUtils.convertToType(key, keyClass), ClassUtils.convertToType(value, valueClass));
190 }
191 }
192 }
193
194
195 private void initializeList(FacesContext facesContext, ListEntries listEntries, List list)
196 {
197 Application application = facesContext.getApplication();
198 Class valueClass = listEntries.getValueClass() == null ? String .class : ClassUtils.simpleJavaTypeToClass(listEntries.getValueClass());
199 ValueBinding valueBinding;
200
201 for (Iterator iterator = listEntries.getListEntries(); iterator.hasNext();)
202 {
203 ListEntry entry = (ListEntry) iterator.next();
204 if (entry.isNullValue())
205 {
206 list.add(null);
207 }
208 else
209 {
210 Object value = entry.getValue();
211 if (UIComponentTag.isValueReference((String ) value))
212 {
213 valueBinding = application.createValueBinding((String ) value);
214 value = valueBinding.getValue(facesContext);
215 }
216 list.add(ClassUtils.convertToType(value, valueClass));
217 }
218 }
219 }
220 }
221 |
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