Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
VerifyRequiredParametersVisitor |
|
| 4.0;4 |
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.pageload; |
|
16 | ||
17 | import java.util.Iterator; |
|
18 | ||
19 | import org.apache.hivemind.ApplicationRuntimeException; |
|
20 | import org.apache.tapestry.IComponent; |
|
21 | import org.apache.tapestry.spec.IComponentSpecification; |
|
22 | import org.apache.tapestry.spec.IParameterSpecification; |
|
23 | ||
24 | /** |
|
25 | * Verify whether all required parameters in the examined component are bound, and if they are not, |
|
26 | * throw an exception. |
|
27 | * |
|
28 | * @author mindbridge |
|
29 | * @since 3.0 |
|
30 | */ |
|
31 | 3 | public class VerifyRequiredParametersVisitor implements IComponentVisitor |
32 | { |
|
33 | /** |
|
34 | * @see org.apache.tapestry.pageload.IComponentVisitor#visitComponent(org.apache.tapestry.IComponent) |
|
35 | */ |
|
36 | public void visitComponent(IComponent component) |
|
37 | { |
|
38 | 3 | IComponentSpecification spec = component.getSpecification(); |
39 | ||
40 | 3 | Iterator i = spec.getRequiredParameters().iterator(); |
41 | ||
42 | 4 | while (i.hasNext()) |
43 | { |
|
44 | 2 | IParameterSpecification parameterSpec = (IParameterSpecification) i.next(); |
45 | ||
46 | 2 | String name = parameterSpec.getParameterName(); |
47 | ||
48 | 2 | if (component.getBinding(name) == null) |
49 | 1 | throw new ApplicationRuntimeException(PageloadMessages.requiredParameterNotBound( |
50 | name, |
|
51 | component), component, component.getLocation(), null); |
|
52 | 1 | } |
53 | 2 | } |
54 | ||
55 | } |