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1
14
15 package com.sun.facelets.tag.jstl.fn;
16
17 import java.lang.reflect.Method  ;
18 import java.lang.reflect.Modifier ;
19 import java.util.HashMap ;
20 import java.util.Map ;
21
22 import javax.faces.FacesException;
23
24 import com.sun.facelets.tag.TagConfig;
25 import com.sun.facelets.tag.TagHandler;
26 import com.sun.facelets.tag.TagLibrary;
27
28
34 public class JstlFnLibrary implements TagLibrary {
35
36 public final static String Namespace = "http://java.sun.com/jsp/jstl/functions";
37
38 private final Map fns = new HashMap ();
39
40 public JstlFnLibrary() {
41 super();
42 try {
43 Method [] methods = JstlFunction.class.getMethods();
44 for (int i = 0; i < methods.length; i++) {
45 if (Modifier.isStatic(methods[i].getModifiers())) {
46 fns.put(methods[i].getName(), methods[i]);
47 }
48 }
49 } catch (Exception e) {
50 throw new RuntimeException (e);
51 }
52 }
53
54 public boolean containsNamespace(String ns) {
55 return Namespace.equals(ns);
56 }
57
58 public boolean containsTagHandler(String ns, String localName) {
59 return false;
60 }
61
62 public TagHandler createTagHandler(String ns, String localName,
63 TagConfig tag) throws FacesException {
64 return null;
65 }
66
67 public boolean containsFunction(String ns, String name) {
68 if (Namespace.equals(ns)) {
69 return this.fns.containsKey(name);
70 }
71 return false;
72 }
73
74 public Method createFunction(String ns, String name) {
75 if (Namespace.equals(ns)) {
76 return (Method ) this.fns.get(name);
77 }
78 return null;
79 }
80
81 public static void main(String [] argv) {
82 JstlFnLibrary lib = new JstlFnLibrary();
83 System.out.println(lib.containsFunction(JstlFnLibrary.Namespace, "toUpperCase"));
84 }
85
86 }
87 |
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