1 |
|
|
2 |
|
|
3 |
|
|
4 |
|
|
5 |
|
|
6 |
|
|
7 |
|
|
8 |
|
|
9 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
13 |
|
|
14 |
|
|
15 |
|
package org.apache.tapestry.script; |
16 |
|
|
17 |
|
import org.apache.hivemind.ClassResolver; |
18 |
|
import org.apache.hivemind.HiveMind; |
19 |
|
import org.apache.tapestry.Tapestry; |
20 |
|
import org.apache.tapestry.util.xml.BaseRule; |
21 |
|
import org.apache.tapestry.util.xml.DocumentParseException; |
22 |
|
import org.apache.tapestry.util.xml.RuleDirectedParser; |
23 |
|
import org.xml.sax.Attributes; |
24 |
|
|
25 |
|
|
26 |
|
|
27 |
|
|
28 |
|
|
29 |
|
|
30 |
|
|
31 |
|
|
32 |
|
class InputSymbolRule extends BaseRule |
33 |
|
{ |
34 |
|
|
35 |
|
private ClassResolver _resolver; |
36 |
|
|
37 |
|
public InputSymbolRule(ClassResolver resolver) |
38 |
16 |
{ |
39 |
16 |
_resolver = resolver; |
40 |
16 |
} |
41 |
|
|
42 |
|
public void startElement(RuleDirectedParser parser, Attributes attributes) |
43 |
|
{ |
44 |
4 |
String key = getAttribute(attributes, "key"); |
45 |
|
|
46 |
4 |
parser.validate(key, Tapestry.SIMPLE_PROPERTY_NAME_PATTERN, |
47 |
|
"ScriptParser.invalid-key"); |
48 |
|
|
49 |
4 |
String className = getAttribute(attributes, "class"); |
50 |
4 |
Class expectedClass = lookupClass(parser, className); |
51 |
|
|
52 |
4 |
String required = getAttribute(attributes, "required"); |
53 |
|
|
54 |
4 |
InputSymbolToken token = new InputSymbolToken(key, expectedClass, |
55 |
|
required.equals("yes"), parser.getLocation()); |
56 |
|
|
57 |
4 |
IScriptToken parent = (IScriptToken) parser.peek(); |
58 |
4 |
parent.addToken(token); |
59 |
4 |
} |
60 |
|
|
61 |
|
private Class lookupClass(RuleDirectedParser parser, String className) |
62 |
|
{ |
63 |
4 |
if (HiveMind.isBlank(className)) return null; |
64 |
|
|
65 |
|
try |
66 |
|
{ |
67 |
3 |
return _resolver.findClass(className); |
68 |
|
} |
69 |
0 |
catch (Exception ex) |
70 |
|
{ |
71 |
0 |
throw new DocumentParseException(Tapestry.format( |
72 |
|
"ScriptParser.unable-to-resolve-class", className), parser |
73 |
|
.getLocation(), ex); |
74 |
|
} |
75 |
|
} |
76 |
|
} |