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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
InputSymbolToken.java | 100% | 100% | 100% | 100% |
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1 | // Copyright 2004, 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // Unless required by applicable law or agreed to in writing, software | |
10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | // See the License for the specific language governing permissions and | |
13 | // limitations under the License. | |
14 | ||
15 | package org.apache.tapestry.script; | |
16 | ||
17 | import org.apache.hivemind.ApplicationRuntimeException; | |
18 | import org.apache.hivemind.Location; | |
19 | import org.apache.tapestry.Tapestry; | |
20 | ||
21 | /** | |
22 | * A token that validates that an input symbol exists or is of a | |
23 | * declared type. | |
24 | * | |
25 | * | |
26 | * @author Howard Lewis Ship | |
27 | * @since 2.2 | |
28 | * | |
29 | **/ | |
30 | ||
31 | class InputSymbolToken extends AbstractToken | |
32 | { | |
33 | private String _key; | |
34 | private Class _class; | |
35 | private boolean _required; | |
36 | ||
37 | 4 | InputSymbolToken(String key, Class clazz, boolean required, Location location) |
38 | { | |
39 | 4 | super(location); |
40 | ||
41 | 4 | _key = key; |
42 | 4 | _class = clazz; |
43 | 4 | _required = required; |
44 | } | |
45 | ||
46 | 4 | public void write(StringBuffer buffer, ScriptSession session) |
47 | { | |
48 | 4 | Object value = session.getSymbols().get(_key); |
49 | ||
50 | 4 | if (_required && value == null) |
51 | 1 | throw new ApplicationRuntimeException( |
52 | Tapestry.format("InputSymbolToken.required", _key), | |
53 | getLocation(), | |
54 | null); | |
55 | ||
56 | 3 | if (value != null && _class != null && !_class.isAssignableFrom(value.getClass())) |
57 | 1 | throw new ApplicationRuntimeException( |
58 | Tapestry.format( | |
59 | "InputSymbolToken.wrong-type", | |
60 | _key, | |
61 | value.getClass().getName(), | |
62 | _class.getName()), | |
63 | getLocation(), | |
64 | null); | |
65 | } | |
66 | ||
67 | } |
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