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34 package info.magnolia.content2bean.impl;
35
36 import info.magnolia.content2bean.Content2BeanTransformer;
37 import info.magnolia.content2bean.PropertyTypeDescriptor;
38 import info.magnolia.content2bean.TypeDescriptor;
39 import info.magnolia.content2bean.TypeMapping;
40
41 import java.beans.PropertyDescriptor;
42 import java.lang.reflect.Method;
43 import java.util.Collection;
44 import java.util.HashMap;
45 import java.util.Map;
46
47 import info.magnolia.objectfactory.ClassFactory;
48 import info.magnolia.objectfactory.Classes;
49 import org.apache.commons.beanutils.PropertyUtils;
50 import org.apache.commons.lang.StringUtils;
51 import org.slf4j.Logger;
52 import org.slf4j.LoggerFactory;
53
54
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60
61 public class TypeMappingImpl implements TypeMapping {
62
63 private static Logger log = LoggerFactory.getLogger(TypeMappingImpl.class);
64
65
66
67
68 protected static Map<String, PropertyTypeDescriptor> propertyTypes = new HashMap<String, PropertyTypeDescriptor>();
69
70
71
72
73 protected static Map<Class<?>, TypeDescriptor> types = new HashMap<Class<?>, TypeDescriptor>();
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75
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78 public Method getAddMethod(Class<?> type, String name, int numberOfParameters) {
79 name = StringUtils.capitalize(name);
80 Method method = getExactMethod(type, "add" + name, numberOfParameters);
81 if (method == null) {
82 method = getExactMethod(type, "add" + StringUtils.removeEnd(name, "s"), numberOfParameters);
83 }
84
85 if (method == null) {
86 method = getExactMethod(type, "add" + StringUtils.removeEnd(name, "es"), numberOfParameters);
87 }
88
89 if (method == null) {
90 method = getExactMethod(type, "add" + StringUtils.removeEnd(name, "ren"), numberOfParameters);
91 }
92
93 if (method == null) {
94 method = getExactMethod(type, "add" + StringUtils.removeEnd(name, "ies") + "y", numberOfParameters);
95 }
96 return method;
97 }
98
99
100
101
102
103 public PropertyTypeDescriptor getPropertyTypeDescriptor(Class<?> beanClass, String propName) {
104 PropertyTypeDescriptor dscr;
105 String key = beanClass.getName() + "." + propName;
106
107 dscr = propertyTypes.get(key);
108 if(dscr != null){
109 return dscr;
110 }
111 TypeMapping defaultMapping = TypeMapping.Factory.getDefaultMapping();
112
113 if (this != defaultMapping) {
114 dscr = defaultMapping.getPropertyTypeDescriptor(beanClass, propName);
115 if (dscr.getType() != null) {
116 return dscr;
117 }
118 }
119
120 dscr = new PropertyTypeDescriptor();
121 dscr.setName(propName);
122
123 PropertyDescriptor[] descriptors = PropertyUtils.getPropertyDescriptors(beanClass);
124 for (int i = 0; i < descriptors.length; i++) {
125 PropertyDescriptor descriptor = descriptors[i];
126 if (descriptor.getName().equals(propName)) {
127 Class<?> propertytype = descriptor.getPropertyType();
128 if (propertytype != null) {
129 dscr.setType(getTypeDescriptor(propertytype));
130 }
131 break;
132 }
133 }
134
135 if(dscr.getType() != null){
136 if(dscr.isMap() || dscr.isCollection()){
137 int numberOfParameters = dscr.isMap() ? 2 : 1;
138 Method method = getAddMethod(beanClass, propName, numberOfParameters);
139 if(method != null){
140 dscr.setAddMethod(method);
141 if(dscr.isMap()){
142 dscr.setCollectionKeyType(getTypeDescriptor(method.getParameterTypes()[0]));
143 dscr.setCollectionEntryType(getTypeDescriptor(method.getParameterTypes()[1]));
144 }
145 else{
146 dscr.setCollectionEntryType(getTypeDescriptor(method.getParameterTypes()[0]));
147 }
148 }
149 }
150 }
151
152
153 propertyTypes.put(key, dscr);
154
155 return dscr;
156 }
157
158 public void addPropertyTypeDescriptor(Class<?> beanClass, String propName, PropertyTypeDescriptor dscr) {
159 propertyTypes.put(beanClass.getName() + "." + propName, dscr);
160 }
161
162 public void addTypeDescriptor(Class<?> beanClass, TypeDescriptor dscr) {
163 types.put(beanClass, dscr);
164 }
165
166 public TypeDescriptor getTypeDescriptor(Class<?> beanClass) {
167 TypeDescriptor dscr = types.get(beanClass);
168 if(dscr != null){
169 return dscr;
170 }
171 dscr = new TypeDescriptor();
172 dscr.setType(beanClass);
173 dscr.setMap(Map.class.isAssignableFrom(beanClass));
174 dscr.setCollection(beanClass.isArray() || Collection.class.isAssignableFrom(beanClass));
175 types.put(beanClass, dscr);
176
177 if (!beanClass.isArray() && !beanClass.isPrimitive()) {
178 try {
179 final ClassFactory classFactory = Classes.getClassFactory();
180 final Class<Content2BeanTransformer> transformerClass = classFactory.forName(beanClass.getName() + "Transformer");
181
182 if(Content2BeanTransformer.class.isAssignableFrom(transformerClass)){
183 try {
184 final Content2BeanTransformer transformer = classFactory.newInstance(transformerClass);
185 dscr.setTransformer(transformer);
186 log.debug("Found a custom transformer [{" + transformerClass + "}] for [{" + beanClass + "}]");
187 } catch (Exception e) {
188 log.error("Can't instantiate custom transformer [{" + transformerClass + "}] for [{" + beanClass + "}]", e);
189 }
190 }
191 } catch (Exception e) {
192
193 log.debug("No custom transformer class {}Transformer class found", beanClass.getName());
194 }
195 }
196
197 return dscr;
198 }
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203
204 protected Method getExactMethod(Class<?> type, String name, int numberOfParameters) {
205 Method[] methods = type.getMethods();
206 for (int i = 0; i < methods.length; i++) {
207 Method method = methods[i];
208 if (method.getName().equals(name)) {
209 if(method.getParameterTypes().length == numberOfParameters){
210 return method;
211 }
212 }
213 }
214 return null;
215 }
216
217 }