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1
29
30 package com.caucho.jsp.java;
31
32 import com.caucho.jsp.JspParseException;
33 import com.caucho.vfs.WriteStream;
34 import com.caucho.xml.QName;
35
36 import java.io.IOException  ;
37
38 public class JstlCoreSet extends JstlNode {
39 private static final QName VALUE = new QName("value");
40 private static final QName VAR = new QName("var");
41 private static final QName SCOPE = new QName("scope");
42 private static final QName TARGET = new QName("target");
43 private static final QName PROPERTY = new QName("property");
44
45 private String _value;
46 private JspAttribute _valueAttr;
47
48 private String _var;
49 private String _scope;
50
51 private String _target;
52 private JspAttribute _targetAttr;
53
54 private String _property;
55 private JspAttribute _propertyAttr;
56
57
60 public void addAttribute(QName name, String value)
61 throws JspParseException
62 {
63 if (VALUE.equals(name))
64 _value = value;
65 else if (VAR.equals(name))
66 _var = value;
67 else if (SCOPE.equals(name))
68 _scope = value;
69 else if (TARGET.equals(name))
70 _target = value;
71 else if (PROPERTY.equals(name))
72 _property = value;
73 else
74 throw error(L.l("`{0}' is an unknown attribute for <{1}>.",
75 name.getName(), getTagName()));
76 }
77
78
81 public void addAttribute(QName name, JspAttribute value)
82 throws JspParseException
83 {
84 if (VALUE.equals(name))
85 _valueAttr = value;
86 else if (TARGET.equals(name))
87 _targetAttr = value;
88 else if (PROPERTY.equals(name))
89 _propertyAttr = value;
90 else
91 throw error(L.l("`{0}' is an unsupported jsp:attribute for <{1}>.",
92 name.getName(), getTagName()));
93 }
94
95
98 public boolean hasScripting()
99 {
100 return (super.hasScripting() ||
101 hasScripting(_value) || hasScripting(_valueAttr) ||
102 hasScripting(_target) || hasScripting(_targetAttr) ||
103 hasScripting(_property) || hasScripting(_propertyAttr));
104 }
105
106
111 public void printXml(WriteStream os)
112 throws IOException
113 {
114 os.print("<c:set");
115
116 if (_value != null) {
117 os.print(" value=\"");
118 printXmlText(os, _value);
119 os.print("\"");
120 }
121
122 if (_var != null)
123 os.print(" var=\"" + _var + "\"");
124
125 if (_scope != null)
126 os.print(" scope=\"" + _scope + "\"");
127
128 if (_target != null)
129 os.print(" target=\"" + _target + "\"");
130
131 if (_property != null)
132 os.print(" property=\"" + _property + "\"");
133
134 os.print(">");
135
136 printXmlChildren(os);
137
138 os.print("</c:set>");
139 }
140
141
144 public void generate(JspJavaWriter out)
145 throws Exception
146 {
147 if (_value != null) {
148 String value = generateValue(Object .class, _value);
149
150 generateSet(out, value);
151 }
152 else if (_valueAttr != null) {
153 generateSet(out, _valueAttr.generateValue());
154 }
155 else if (! hasChildren()) {
156 generateSet(out, "\"\"");
157 }
158 else if (isChildrenStatic()) {
159 generateSet(out, '"' + escapeJavaString(getStaticText().trim()) + '"');
160 }
161 else if (hasChildren()) {
162 out.println("out = pageContext.pushBody();");
163
164 generateChildren(out);
165
166 String cauchoVar = "_caucho_var_" + _gen.uniqueId();
167
168 out.println("Object " + cauchoVar + " = ((com.caucho.jsp.BodyContentImpl) out).getTrimString();");
169
170 out.println("out = pageContext.popAndReleaseBody();");
171
172 generateSet(out, cauchoVar);
173 }
174 }
175
176 private void generateSet(JspJavaWriter out, String value)
177 throws Exception
178 {
179 if (_var != null)
180 generateSetOrRemove(out, _var, _scope, value);
181 else {
182 out.print("com.caucho.el.Expr.setProperty(");
183 if (_targetAttr != null)
184 out.print(_targetAttr.generateValue() + ", ");
185 else
186 out.print(generateValue(Object .class, _target) + ", ");
187
188 if (_propertyAttr != null)
189 out.print(_propertyAttr.generateValue() + ", ");
190 else
191 out.print(generateValue(String .class, _property) + ", ");
192
193 out.println(value + ");");
194 }
195 }
196 }
197 |
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