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30 day Evaluation License registered to hlship@comcast.net Your 30 day evaluation period has expired. Please visit http://www.cenqua.com to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
InjectScriptWorker.java | - | 100% | 100% | 100% |
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1 | // Copyright 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.enhance; | |
16 | ||
17 | import java.lang.reflect.Modifier; | |
18 | ||
19 | import org.apache.hivemind.Location; | |
20 | import org.apache.hivemind.Resource; | |
21 | import org.apache.hivemind.service.MethodSignature; | |
22 | import org.apache.hivemind.util.Defense; | |
23 | import org.apache.tapestry.IScript; | |
24 | import org.apache.tapestry.engine.IScriptSource; | |
25 | import org.apache.tapestry.spec.InjectSpecification; | |
26 | ||
27 | /** | |
28 | * Injects {@link org.apache.tapestry.IScript} instances directly into pages or components. | |
29 | * | |
30 | * @author Howard M. Lewis Ship | |
31 | * @since 4.0 | |
32 | */ | |
33 | public class InjectScriptWorker implements InjectEnhancementWorker | |
34 | { | |
35 | private IScriptSource _source; | |
36 | ||
37 | 1 | public void performEnhancement(EnhancementOperation op, InjectSpecification spec) |
38 | { | |
39 | 1 | String propertyName = spec.getProperty(); |
40 | 1 | String scriptName = spec.getObject(); |
41 | 1 | Location location = spec.getLocation(); |
42 | ||
43 | 1 | injectScript(op, propertyName, scriptName, location); |
44 | } | |
45 | ||
46 | /** | |
47 | * Injects a compiled script. | |
48 | * | |
49 | * @param op | |
50 | * the enhancement operation | |
51 | * @param propertyName | |
52 | * the name of the property to inject | |
53 | * @param scriptName | |
54 | * the name of the script (relative to the location) | |
55 | * @param location | |
56 | * the location of the specification; primarily used as the base location for finding | |
57 | * the script. | |
58 | */ | |
59 | ||
60 | 1 | public void injectScript(EnhancementOperation op, String propertyName, String scriptName, |
61 | Location location) | |
62 | { | |
63 | 1 | Defense.notNull(op, "op"); |
64 | 1 | Defense.notNull(propertyName, "propertyName"); |
65 | 1 | Defense.notNull(scriptName, "scriptName"); |
66 | 1 | Defense.notNull(location, "location"); |
67 | ||
68 | 1 | op.claimProperty(propertyName); |
69 | ||
70 | 1 | Class propertyType = EnhanceUtils.verifyPropertyType(op, propertyName, IScript.class); |
71 | ||
72 | // PropertyType will likely be either java.lang.Object or IScript | |
73 | ||
74 | 1 | String methodName = op.getAccessorMethodName(propertyName); |
75 | ||
76 | 1 | Resource resource = location.getResource().getRelativeResource(scriptName); |
77 | ||
78 | 1 | DeferredScript script = new DeferredScriptImpl(resource, _source, location); |
79 | ||
80 | 1 | String fieldName = op.addInjectedField("_$script", DeferredScript.class, script); |
81 | ||
82 | 1 | MethodSignature sig = new MethodSignature(propertyType, methodName, null, null); |
83 | ||
84 | 1 | op.addMethod(Modifier.PUBLIC, sig, "return " + fieldName + ".getScript();"); |
85 | } | |
86 | ||
87 | 1 | public void setSource(IScriptSource source) |
88 | { | |
89 | 1 | _source = source; |
90 | } | |
91 | } |
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