1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 package org.apache.myfaces.view.facelets.el;
20
21 import java.io.Externalizable;
22 import java.io.IOException;
23 import java.io.ObjectInput;
24 import java.io.ObjectOutput;
25
26 import javax.el.ELContext;
27 import javax.el.ELException;
28 import javax.el.MethodExpression;
29 import javax.el.MethodInfo;
30 import javax.el.MethodNotFoundException;
31 import javax.el.PropertyNotFoundException;
32 import javax.faces.FacesWrapper;
33 import javax.faces.view.Location;
34 import javax.faces.view.facelets.TagAttribute;
35
36
37
38
39
40
41
42 public final class ContextAwareTagMethodExpression
43 extends MethodExpression
44 implements Externalizable, FacesWrapper<MethodExpression>, ContextAware
45 {
46
47 private static final long serialVersionUID = 1L;
48
49 private MethodExpression _wrapped;
50
51 private Location _location;
52
53 private String _qName;
54
55 public ContextAwareTagMethodExpression()
56 {
57 super();
58 }
59
60 public ContextAwareTagMethodExpression(TagAttribute tagAttribute, MethodExpression methodExpression)
61 {
62 _location = tagAttribute.getLocation();
63 _qName = tagAttribute.getQName();
64 _wrapped = methodExpression;
65 }
66
67 public MethodInfo getMethodInfo(ELContext context)
68 {
69 try
70 {
71 return _wrapped.getMethodInfo(context);
72 }
73 catch (PropertyNotFoundException pnfe)
74 {
75 throw new ContextAwarePropertyNotFoundException(getLocation(), getLocalExpressionString(), getQName(),pnfe);
76 }
77 catch (MethodNotFoundException mnfe)
78 {
79 throw new ContextAwareMethodNotFoundException(getLocation(), getLocalExpressionString(), getQName(), mnfe);
80 }
81 catch (ELException e)
82 {
83 throw new ContextAwareELException(getLocation(), getLocalExpressionString(), getQName(), e);
84 }
85
86
87
88
89
90 }
91
92 public Object invoke(ELContext context, Object[] params)
93 {
94 try
95 {
96 return _wrapped.invoke(context, params);
97 }
98 catch (PropertyNotFoundException pnfe)
99 {
100 throw new ContextAwarePropertyNotFoundException(getLocation(), getLocalExpressionString(), getQName(),pnfe);
101 }
102 catch (MethodNotFoundException mnfe)
103 {
104 throw new ContextAwareMethodNotFoundException(getLocation(), getLocalExpressionString(), getQName(), mnfe);
105 }
106 catch (ELException e)
107 {
108 throw new ContextAwareELException(getLocation(), getLocalExpressionString(), getQName(), e);
109 }
110
111
112
113
114
115 }
116
117
118 private String getLocalExpressionString()
119 {
120 String expressionString = null;
121 try
122 {
123 expressionString = getExpressionString();
124 }
125 catch (Throwable t)
126 {
127
128 }
129 return expressionString;
130 }
131
132 public String getExpressionString()
133 {
134 return _wrapped.getExpressionString();
135 }
136
137 public boolean equals(Object obj)
138 {
139 return _wrapped.equals(obj);
140 }
141
142 public int hashCode()
143 {
144 return _wrapped.hashCode();
145 }
146
147 public boolean isLiteralText()
148 {
149 return _wrapped.isLiteralText();
150 }
151
152 public void writeExternal(ObjectOutput out) throws IOException
153 {
154 out.writeObject(_wrapped);
155 out.writeObject(_location);
156 out.writeUTF(_qName);
157 }
158
159 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
160 {
161 _wrapped = (MethodExpression) in.readObject();
162 _location = (Location) in.readObject();
163 _qName = in.readUTF();
164 }
165
166 public String toString()
167 {
168 return _location + ": " + _wrapped;
169 }
170
171 public Location getLocation()
172 {
173 return _location;
174 }
175
176 public String getQName()
177 {
178 return _qName;
179 }
180
181 public MethodExpression getWrapped()
182 {
183 return _wrapped;
184 }
185
186 }