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1 package freemarker.ext.rhino;
2
3 import org.mozilla.javascript.EvaluatorException;
4 import org.mozilla.javascript.Function;
5 import org.mozilla.javascript.NativeJavaObject;
6 import org.mozilla.javascript.Scriptable;
7 import org.mozilla.javascript.ScriptableObject;
8
9 import freemarker.ext.beans.BeansWrapper;
10 import freemarker.ext.util.ModelFactory;
11 import freemarker.template.AdapterTemplateModel;
12 import freemarker.template.ObjectWrapper;
13 import freemarker.template.TemplateCollectionModel;
14 import freemarker.template.TemplateHashModelEx;
15 import freemarker.template.TemplateModel;
16 import freemarker.template.TemplateModelException;
17 import freemarker.template.TemplateSequenceModel;
18
19
26 public class RhinoScriptableModel implements TemplateHashModelEx,
27 TemplateSequenceModel, AdapterTemplateModel
28 {
29 static final ModelFactory FACTORY = new ModelFactory() {
30 public TemplateModel create(Object  object, ObjectWrapper wrapper) {
31 return new RhinoScriptableModel((Scriptable)object,
32 (BeansWrapper)wrapper);
33 }
34 };
35
36 private final Scriptable scriptable;
37 private final BeansWrapper wrapper;
38
39 public RhinoScriptableModel(Scriptable scriptable, BeansWrapper wrapper) {
40 this.scriptable = scriptable;
41 this.wrapper = wrapper;
42 }
43
44 public TemplateModel get(String key) throws TemplateModelException {
45 Object retval = ScriptableObject.getProperty(scriptable, key);
46 if(retval instanceof Function) {
47 return new RhinoFunctionModel((Function)retval, scriptable, wrapper);
48 }
49 else {
50 return wrapper.wrap(retval);
51 }
52 }
53
54 public TemplateModel get(int index) throws TemplateModelException {
55 Object retval = ScriptableObject.getProperty(scriptable, index);
56 if(retval instanceof Function) {
57 return new RhinoFunctionModel((Function)retval, scriptable, wrapper);
58 }
59 else {
60 return wrapper.wrap(retval);
61 }
62 }
63
64 public boolean isEmpty() {
65 return scriptable.getIds().length == 0;
66 }
67
68 public TemplateCollectionModel keys() throws TemplateModelException {
69 return (TemplateCollectionModel)wrapper.wrap(scriptable.getIds());
70 }
71
72 public int size() {
73 return scriptable.getIds().length;
74 }
75
76 public TemplateCollectionModel values() throws TemplateModelException {
77 Object [] ids = scriptable.getIds();
78 Object [] values = new Object [ids.length];
79 for (int i = 0; i < values.length; i++) {
80 Object id = ids[i];
81 if(id instanceof Number ) {
82 values[i] = ScriptableObject.getProperty(scriptable,
83 ((Number )id).intValue());
84 }
85 else {
86 values[i] = ScriptableObject.getProperty(scriptable,
87 String.valueOf(id));
88 }
89 }
90 return (TemplateCollectionModel)wrapper.wrap(values);
91 }
92
93 Scriptable getScriptable() {
94 return scriptable;
95 }
96
97 BeansWrapper getWrapper() {
98 return wrapper;
99 }
100
101 public Object getAdaptedObject(Class hint) {
102 try {
103 return NativeJavaObject.coerceType(hint, scriptable);
104 }
105 catch(EvaluatorException e) {
106 return NativeJavaObject.coerceType(Object .class, scriptable);
107 }
108 }
109 }
110 |
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