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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.Configuration;
43 import freemarker.template.DefaultObjectWrapper;
44 import freemarker.template.TemplateModel;
45 import freemarker.template.TemplateModelException;
46
47
48
49
50 public class MagnoliaObjectWrapper extends DefaultObjectWrapper {
51 private final static org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(MagnoliaObjectWrapper.class);
52
53 private final static List<MagnoliaModelFactory> DEFAULT_MODEL_FACTORIES = new ArrayList<MagnoliaModelFactory>() {{
54 add(NodeDataModelFactory.INSTANCE);
55 add(ContentModel.FACTORY);
56 add(ContentMapModel.FACTORY);
57 add(CalendarModel.FACTORY);
58 add(UserModel.FACTORY);
59 add(ContextModelFactory.INSTANCE);
60 }};
61
62 private final FreemarkerConfig freemarkerConfig;
63
64 public MagnoliaObjectWrapper(FreemarkerConfig freemarkerConfig) {
65 super(Configuration.VERSION_2_3_28);
66 this.freemarkerConfig = freemarkerConfig;
67 }
68
69 @Override
70 public TemplateModel wrap(Object obj) throws TemplateModelException {
71
72 if (obj == null) {
73 return super.wrap(null);
74 }
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76
77
78 if ((obj instanceof Class) && ((Class) obj).isEnum()) {
79 final String enumClassName = ((Class) obj).getName();
80 return getEnumModels().get(enumClassName);
81 }
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88 Class<?> clazz = obj.getClass();
89 ModelFactory modelFactory = getModelFactory(clazz, freemarkerConfig.getModelFactories());
90 if (modelFactory == null) {
91 modelFactory = getModelFactory(clazz, DEFAULT_MODEL_FACTORIES);
92 }
93 if (modelFactory != null) {
94 return handleUnknownType(obj);
95 }
96
97 return super.wrap(obj);
98 }
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111 @Override
112 protected ModelFactory getModelFactory(Class clazz) {
113 final List<MagnoliaModelFactory> registeredModelFactories = freemarkerConfig.getModelFactories();
114 ModelFactory modelFactory = getModelFactory(clazz, registeredModelFactories);
115
116 if (modelFactory == null) {
117 modelFactory = getModelFactory(clazz, DEFAULT_MODEL_FACTORIES);
118 }
119 if (modelFactory == null) {
120 modelFactory = super.getModelFactory(clazz);
121 }
122 return modelFactory;
123 }
124
125 private ModelFactory getModelFactory(Class clazz, List<MagnoliaModelFactory> factories) {
126 for (MagnoliaModelFactory factory : factories) {
127 if (factory.factoryFor().isAssignableFrom(clazz)) {
128 return factory;
129 }
130 }
131 return null;
132 }
133 }