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1
17
18 package org.apache.jasper.compiler;
19
20 import java.util.*;
21 import javax.servlet.jsp.tagext.FunctionInfo  ;
22 import org.apache.jasper.JasperException;
23
24
32
33 abstract class ELNode {
34
35 abstract public void accept(Visitor v) throws JasperException;
36
37
40
41
42
45 public static class Root extends ELNode {
46
47 private ELNode.Nodes expr;
48 private char type;
49
50 Root(ELNode.Nodes expr, char type) {
51 this.expr = expr;
52 this.type = type;
53 }
54
55 public void accept(Visitor v) throws JasperException {
56 v.visit(this);
57 }
58
59 public ELNode.Nodes getExpression() {
60 return expr;
61 }
62
63 public char getType() {
64 return type;
65 }
66 }
67
68
71 public static class Text extends ELNode {
72
73 private String text;
74
75 Text(String text) {
76 this.text = text;
77 }
78
79 public void accept(Visitor v) throws JasperException {
80 v.visit(this);
81 }
82
83 public String getText() {
84 return text;
85 }
86 }
87
88
92 public static class ELText extends ELNode {
93
94 private String text;
95
96 ELText(String text) {
97 this.text = text;
98 }
99
100 public void accept(Visitor v) throws JasperException {
101 v.visit(this);
102 }
103
104 public String getText() {
105 return text;
106 }
107 }
108
109
114 public static class Function extends ELNode {
115
116 private String prefix;
117 private String name;
118 private String uri;
119 private FunctionInfo functionInfo;
120 private String methodName;
121 private String [] parameters;
122
123 Function(String prefix, String name) {
124 this.prefix = prefix;
125 this.name = name;
126 }
127
128 public void accept(Visitor v) throws JasperException {
129 v.visit(this);
130 }
131
132 public String getPrefix() {
133 return prefix;
134 }
135
136 public String getName() {
137 return name;
138 }
139
140 public void setUri(String uri) {
141 this.uri = uri;
142 }
143
144 public String getUri() {
145 return uri;
146 }
147
148 public void setFunctionInfo(FunctionInfo f) {
149 this.functionInfo = f;
150 }
151
152 public FunctionInfo getFunctionInfo() {
153 return functionInfo;
154 }
155
156 public void setMethodName(String methodName) {
157 this.methodName = methodName;
158 }
159
160 public String getMethodName() {
161 return methodName;
162 }
163
164 public void setParameters(String [] parameters) {
165 this.parameters = parameters;
166 }
167
168 public String [] getParameters() {
169 return parameters;
170 }
171 }
172
173
176 public static class Nodes {
177
178
181 String mapName = null; private List<ELNode> list;
183
184 public Nodes() {
185 list = new ArrayList<ELNode>();
186 }
187
188 public void add(ELNode en) {
189 list.add(en);
190 }
191
192
196 public void visit(Visitor v) throws JasperException {
197 Iterator<ELNode> iter = list.iterator();
198 while (iter.hasNext()) {
199 ELNode n = iter.next();
200 n.accept(v);
201 }
202 }
203
204 public Iterator<ELNode> iterator() {
205 return list.iterator();
206 }
207
208 public boolean isEmpty() {
209 return list.size() == 0;
210 }
211
212
215 public boolean containsEL() {
216 Iterator<ELNode> iter = list.iterator();
217 while (iter.hasNext()) {
218 ELNode n = iter.next();
219 if (n instanceof Root) {
220 return true;
221 }
222 }
223 return false;
224 }
225
226 public void setMapName(String name) {
227 this.mapName = name;
228 }
229
230 public String getMapName() {
231 return mapName;
232 }
233
234 }
235
236
239 public static class Visitor {
240
241 public void visit(Root n) throws JasperException {
242 n.getExpression().visit(this);
243 }
244
245 public void visit(Function n) throws JasperException {
246 }
247
248 public void visit(Text n) throws JasperException {
249 }
250
251 public void visit(ELText n) throws JasperException {
252 }
253 }
254 }
255
256 |
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