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1
17 package org.apache.jasper.el;
18
19 import java.io.Externalizable  ;
20 import java.io.IOException ;
21 import java.io.ObjectInput ;
22 import java.io.ObjectOutput ;
23
24 import javax.el.ELContext;
25 import javax.el.ELException;
26 import javax.el.MethodExpression;
27 import javax.el.MethodInfo;
28 import javax.el.MethodNotFoundException;
29 import javax.el.PropertyNotFoundException;
30
31 public final class JspMethodExpression extends MethodExpression implements
32 Externalizable {
33
34 private String mark;
35
36 private MethodExpression target;
37
38 public JspMethodExpression() {
39 super();
40 }
41
42 public JspMethodExpression(String mark, MethodExpression target) {
43 this.target = target;
44 this.mark = mark;
45 }
46
47 public MethodInfo getMethodInfo(ELContext context)
48 throws NullPointerException , PropertyNotFoundException,
49 MethodNotFoundException, ELException {
50 try {
51 return this.target.getMethodInfo(context);
52 } catch (MethodNotFoundException e) {
53 if (e instanceof JspMethodNotFoundException) throw e;
54 throw new JspMethodNotFoundException(this.mark, e);
55 } catch (PropertyNotFoundException e) {
56 if (e instanceof JspPropertyNotFoundException) throw e;
57 throw new JspPropertyNotFoundException(this.mark, e);
58 } catch (ELException e) {
59 if (e instanceof JspELException) throw e;
60 throw new JspELException(this.mark, e);
61 }
62 }
63
64 public Object invoke(ELContext context, Object [] params)
65 throws NullPointerException , PropertyNotFoundException,
66 MethodNotFoundException, ELException {
67 try {
68 return this.target.invoke(context, params);
69 } catch (MethodNotFoundException e) {
70 if (e instanceof JspMethodNotFoundException) throw e;
71 throw new JspMethodNotFoundException(this.mark, e);
72 } catch (PropertyNotFoundException e) {
73 if (e instanceof JspPropertyNotFoundException) throw e;
74 throw new JspPropertyNotFoundException(this.mark, e);
75 } catch (ELException e) {
76 if (e instanceof JspELException) throw e;
77 throw new JspELException(this.mark, e);
78 }
79 }
80
81 public boolean equals(Object obj) {
82 return this.target.equals(obj);
83 }
84
85 public int hashCode() {
86 return this.target.hashCode();
87 }
88
89 public String getExpressionString() {
90 return this.target.getExpressionString();
91 }
92
93 public boolean isLiteralText() {
94 return this.target.isLiteralText();
95 }
96
97 public void writeExternal(ObjectOutput out) throws IOException {
98 out.writeUTF(this.mark);
99 out.writeObject(this.target);
100 }
101
102 public void readExternal(ObjectInput in) throws IOException ,
103 ClassNotFoundException {
104 this.mark = in.readUTF();
105 this.target = (MethodExpression) in.readObject();
106 }
107
108 }
109 |
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