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1
52
53 package freemarker.template;
54
55 import java.lang.reflect.Array  ;
56 import java.util.ArrayList ;
57 import java.util.Collection ;
58 import java.util.Iterator ;
59 import java.util.Map ;
60 import freemarker.ext.dom.NodeModel;
61
62
68 public class DefaultObjectWrapper extends freemarker.ext.beans.BeansWrapper {
69
70 static final DefaultObjectWrapper instance = new DefaultObjectWrapper();
71
72 static private Class W3C_DOM_NODE_CLASS,
73 JYTHON_OBJ_CLASS;
74
75 static private ObjectWrapper JYTHON_WRAPPER;
76
77 static {
78 try {
79 W3C_DOM_NODE_CLASS = Class.forName("org.w3c.dom.Node");
80 } catch (Exception e) {}
81 try {
82 JYTHON_OBJ_CLASS = Class.forName("org.python.core.PyObject");
83 JYTHON_WRAPPER = freemarker.ext.jython.JythonWrapper.INSTANCE;
84 } catch (Exception e) {}
85 }
86
87
88 public TemplateModel wrap(Object obj) throws TemplateModelException {
89 if (obj == null) {
90 return super.wrap(null);
91 }
92 if (obj instanceof TemplateModel) {
93 return (TemplateModel) obj;
94 }
95 if (obj instanceof String ) {
96 return new SimpleScalar((String ) obj);
97 }
98 if (obj instanceof Number ) {
99 return new SimpleNumber((Number ) obj);
100 }
101 if (obj instanceof java.util.Date ) {
102 if(obj instanceof java.sql.Date ) {
103 return new SimpleDate((java.sql.Date ) obj);
104 }
105 if(obj instanceof java.sql.Time ) {
106 return new SimpleDate((java.sql.Time ) obj);
107 }
108 if(obj instanceof java.sql.Timestamp ) {
109 return new SimpleDate((java.sql.Timestamp ) obj);
110 }
111 return new SimpleDate((java.util.Date ) obj, getDefaultDateType());
112 }
113 if (obj.getClass().isArray()) {
114 obj = convertArray(obj);
115 }
116 if (obj instanceof Collection ) {
117 return new SimpleSequence((Collection ) obj, this);
118 }
119 if (obj instanceof Map ) {
120 return new SimpleHash((Map ) obj, this);
121 }
122 if (obj instanceof Boolean ) {
123 return obj.equals(Boolean.TRUE) ? TemplateBooleanModel.TRUE : TemplateBooleanModel.FALSE;
124 }
125 if (obj instanceof Iterator ) {
126 return new SimpleCollection((Iterator ) obj, this);
127 }
128 return handleUnknownType(obj);
129 }
130
131
132
136 protected TemplateModel handleUnknownType(Object obj) throws TemplateModelException {
137 if ((W3C_DOM_NODE_CLASS != null && W3C_DOM_NODE_CLASS.isInstance(obj)))
138 {
139 return wrapDomNode(obj);
140 }
141 if (JYTHON_WRAPPER != null && JYTHON_OBJ_CLASS.isInstance(obj)) {
142 return JYTHON_WRAPPER.wrap(obj);
143 }
144 return super.wrap(obj);
145 }
146
147
148 public TemplateModel wrapDomNode(Object obj) {
149 return NodeModel.wrap((org.w3c.dom.Node ) obj);
150 }
151
152
155 protected Object convertArray(Object arr) {
156 final int size = Array.getLength(arr);
157 ArrayList list = new ArrayList (size);
158 for (int i=0;i<size; i++) {
159 list.add(Array.get(arr, i));
160 }
161 return list;
162 }
163 }
164 |
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