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33
34 package info.magnolia.content2bean.impl;
35
36 import info.magnolia.cms.core.SystemProperty;
37 import info.magnolia.content2bean.Content2BeanTransformer;
38 import info.magnolia.content2bean.PropertyTypeDescriptor;
39 import info.magnolia.content2bean.TypeDescriptor;
40 import info.magnolia.content2bean.TypeMapping;
41 import info.magnolia.objectfactory.ClassFactory;
42 import info.magnolia.objectfactory.Classes;
43
44 import java.beans.PropertyDescriptor;
45 import java.lang.reflect.Method;
46 import java.util.Collection;
47 import java.util.HashMap;
48 import java.util.Map;
49
50 import javax.inject.Singleton;
51
52 import org.apache.commons.beanutils.PropertyUtils;
53 import org.apache.commons.lang3.StringUtils;
54 import org.slf4j.Logger;
55 import org.slf4j.LoggerFactory;
56
57
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59
60
61
62
63 @Deprecated
64 @Singleton
65 public class TypeMappingImpl implements TypeMapping {
66
67 private static Logger log = LoggerFactory.getLogger(TypeMappingImpl.class);
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69
70
71
72 private final Map<String, PropertyTypeDescriptor> propertyTypes = new HashMap<String, PropertyTypeDescriptor>();
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77 private final Map<Class<?>, TypeDescriptor> types = new HashMap<Class<?>, TypeDescriptor>();
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81
82 public Method getAddMethod(Class<?> type, String name, int numberOfParameters) {
83 name = StringUtils.capitalize(name);
84 Method method = getExactMethod(type, "add" + name, numberOfParameters);
85 if (method == null) {
86 method = getExactMethod(type, "add" + StringUtils.removeEnd(name, "s"), numberOfParameters);
87 }
88
89 if (method == null) {
90 method = getExactMethod(type, "add" + StringUtils.removeEnd(name, "es"), numberOfParameters);
91 }
92
93 if (method == null) {
94 method = getExactMethod(type, "add" + StringUtils.removeEnd(name, "ren"), numberOfParameters);
95 }
96
97 if (method == null) {
98 method = getExactMethod(type, "add" + StringUtils.removeEnd(name, "ies") + "y", numberOfParameters);
99 }
100 return method;
101 }
102
103
104
105
106 @Override
107 public PropertyTypeDescriptor getPropertyTypeDescriptor(Class<?> beanClass, String propName) {
108 PropertyTypeDescriptor dscr;
109 String key = beanClass.getName() + "." + propName;
110
111 dscr = propertyTypes.get(key);
112 if (dscr != null) {
113 return dscr;
114 }
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124
125 dscr = new PropertyTypeDescriptor();
126 dscr.setName(propName);
127
128 PropertyDescriptor[] descriptors = PropertyUtils.getPropertyDescriptors(beanClass);
129 for (int i = 0; i < descriptors.length; i++) {
130 PropertyDescriptor descriptor = descriptors[i];
131 if (descriptor.getName().equals(propName)) {
132 Class<?> propertytype = descriptor.getPropertyType();
133 if (propertytype != null) {
134 dscr.setType(getTypeDescriptor(propertytype));
135 }
136 break;
137 }
138 }
139
140 if (dscr.getType() != null) {
141 if (dscr.isMap() || dscr.isCollection()) {
142 int numberOfParameters = dscr.isMap() ? 2 : 1;
143 Method method = getAddMethod(beanClass, propName, numberOfParameters);
144 if (method != null) {
145 dscr.setAddMethod(method);
146 if (dscr.isMap()) {
147 dscr.setCollectionKeyType(getTypeDescriptor(method.getParameterTypes()[0]));
148 dscr.setCollectionEntryType(getTypeDescriptor(method.getParameterTypes()[1]));
149 } else {
150 dscr.setCollectionEntryType(getTypeDescriptor(method.getParameterTypes()[0]));
151 }
152 }
153 }
154 }
155
156
157 propertyTypes.put(key, dscr);
158
159 return dscr;
160 }
161
162 @Override
163 public void addPropertyTypeDescriptor(Class<?> beanClass, String propName, PropertyTypeDescriptor dscr) {
164 propertyTypes.put(beanClass.getName() + "." + propName, dscr);
165 }
166
167 @Override
168 public void addTypeDescriptor(Class<?> beanClass, TypeDescriptor dscr) {
169 types.put(beanClass, dscr);
170 }
171
172 @Override
173 public TypeDescriptor getTypeDescriptor(Class<?> beanClass) {
174 TypeDescriptor dscr = types.get(beanClass);
175
176 if (dscr != null) {
177 return dscr;
178 }
179 dscr = new TypeDescriptor();
180 dscr.setType(beanClass);
181 dscr.setMap(Map.class.isAssignableFrom(beanClass));
182 dscr.setCollection(beanClass.isArray() || Collection.class.isAssignableFrom(beanClass));
183 types.put(beanClass, dscr);
184
185 if (!beanClass.isArray() && !beanClass.isPrimitive()) {
186 Content2BeanTransformer transformer = null;
187 try {
188 transformer = findTransformerByNamingConvention(beanClass);
189 if (transformer == null) {
190 transformer = findTransformerViaProperty(beanClass);
191 }
192 } catch (Exception e) {
193
194 log.debug("No custom transformer class {}Transformer class found", beanClass.getName());
195 }
196 dscr.setTransformer(transformer);
197 }
198 return dscr;
199 }
200
201
202
203
204 protected Content2BeanTransformer findTransformerByNamingConvention(Class<?> beanClass) {
205 final String transformerClassName = beanClass.getName() + "Transformer";
206 try {
207 return instantiateTransformer(beanClass, transformerClassName);
208 } catch (ClassNotFoundException e) {
209 log.debug("No transformer found by naming convention for {} (attempted to load {})", beanClass, transformerClassName);
210 return null;
211 }
212 }
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219 protected Content2BeanTransformer findTransformerViaProperty(Class<?> beanClass) throws ClassNotFoundException {
220 final String property = SystemProperty.getProperty(beanClass.getName() + ".transformer");
221 if (property != null) {
222 return instantiateTransformer(beanClass, property);
223 }
224 return null;
225 }
226
227 protected Content2BeanTransformer instantiateTransformer(Class<?> beanClass, String transformerClassName) throws ClassNotFoundException {
228 final ClassFactory classFactory = Classes.getClassFactory();
229 final Class<Content2BeanTransformer> transformerClass = classFactory.forName(transformerClassName);
230
231 if (Content2BeanTransformer.class.isAssignableFrom(transformerClass)) {
232 try {
233 log.debug("Found a custom transformer [{{}}] for [{{}}]", transformerClass, beanClass);
234
235 return classFactory.newInstance(transformerClass);
236 } catch (Exception e) {
237 log.error("Can't instantiate custom transformer [{{}}] for [{{}}]", transformerClass, beanClass, e);
238 }
239 }
240 return null;
241 }
242
243
244
245
246 protected Method getExactMethod(Class<?> type, String name, int numberOfParameters) {
247 Method[] methods = type.getMethods();
248 for (int i = 0; i < methods.length; i++) {
249 Method method = methods[i];
250 if (method.getName().equals(name)) {
251
252
253
254 if (method.getParameterTypes().length == numberOfParameters) {
255 return method;
256 }
257 }
258 }
259 return null;
260 }
261
262 }