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34 package info.magnolia.freemarker.models;
35
36 import info.magnolia.freemarker.FreemarkerConfig;
37
38 import java.util.ArrayList;
39 import java.util.List;
40
41 import freemarker.ext.util.ModelFactory;
42 import freemarker.template.DefaultObjectWrapper;
43 import freemarker.template.TemplateModel;
44 import freemarker.template.TemplateModelException;
45
46
47
48
49 public class MagnoliaObjectWrapper extends DefaultObjectWrapper {
50 private final static org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(MagnoliaObjectWrapper.class);
51
52 private final static List<MagnoliaModelFactory> DEFAULT_MODEL_FACTORIES = new ArrayList<MagnoliaModelFactory>() {{
53 add(NodeDataModelFactory.INSTANCE);
54 add(ContentModel.FACTORY);
55 add(ContentMapModel.FACTORY);
56 add(CalendarModel.FACTORY);
57 add(UserModel.FACTORY);
58 add(ContextModelFactory.INSTANCE);
59 }};
60
61 private final FreemarkerConfig freemarkerConfig;
62
63 public MagnoliaObjectWrapper(FreemarkerConfig freemarkerConfig) {
64 super();
65 this.freemarkerConfig = freemarkerConfig;
66 }
67
68 @Override
69 public TemplateModel wrap(Object obj) throws TemplateModelException {
70
71 if (obj == null) {
72 return super.wrap(null);
73 }
74
75
76
77 if ((obj instanceof Class) && ((Class) obj).isEnum()) {
78 final String enumClassName = ((Class) obj).getName();
79 return getEnumModels().get(enumClassName);
80 }
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87 Class<?> clazz = obj.getClass();
88 ModelFactory modelFactory = getModelFactory(clazz, freemarkerConfig.getModelFactories());
89 if (modelFactory == null) {
90 modelFactory = getModelFactory(clazz, DEFAULT_MODEL_FACTORIES);
91 }
92 if (modelFactory != null) {
93 return handleUnknownType(obj);
94 }
95
96 return super.wrap(obj);
97 }
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110 @Override
111 protected ModelFactory getModelFactory(Class clazz) {
112 final List<MagnoliaModelFactory> registeredModelFactories = freemarkerConfig.getModelFactories();
113 ModelFactory modelFactory = getModelFactory(clazz, registeredModelFactories);
114
115 if (modelFactory == null) {
116 modelFactory = getModelFactory(clazz, DEFAULT_MODEL_FACTORIES);
117 }
118 if (modelFactory == null) {
119 modelFactory = super.getModelFactory(clazz);
120 }
121 return modelFactory;
122 }
123
124 private ModelFactory getModelFactory(Class clazz, List<MagnoliaModelFactory> factories) {
125 for (MagnoliaModelFactory factory : factories) {
126 if (factory.factoryFor().isAssignableFrom(clazz)) {
127 return factory;
128 }
129 }
130 return null;
131 }
132 }