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DebugValidator.java | 0% | 0% | 0% | 0% |
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1 | /* | |
2 | * Copyright 2004 The Apache Software Foundation | |
3 | * | |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | ||
18 | package validators; | |
19 | ||
20 | ||
21 | import java.io.InputStream; | |
22 | import java.io.IOException; | |
23 | import javax.servlet.jsp.tagext.PageData; | |
24 | import javax.servlet.jsp.tagext.TagLibraryValidator; | |
25 | import javax.servlet.jsp.tagext.ValidationMessage; | |
26 | ||
27 | ||
28 | /** | |
29 | * Example tag library validator that simply dumps the XML version of each | |
30 | * page to standard output (which will typically be sent to the file | |
31 | * <code>$CATALINA_HOME/logs/catalina.out</code>). To utilize it, simply | |
32 | * include a <code>taglib</code> directive for this tag library at the top | |
33 | * of your JSP page. | |
34 | * | |
35 | * @author Craig McClanahan | |
36 | * @version $Revision: 267129 $ $Date: 2004-03-18 08:40:35 -0800 (Thu, 18 Mar 2004) $ | |
37 | */ | |
38 | ||
39 | public class DebugValidator extends TagLibraryValidator { | |
40 | ||
41 | ||
42 | // ----------------------------------------------------- Instance Variables | |
43 | ||
44 | ||
45 | // --------------------------------------------------------- Public Methods | |
46 | ||
47 | ||
48 | /** | |
49 | * Validate a JSP page. This will get invoked once per directive in the | |
50 | * JSP page. This method will return <code>null</code> if the page is | |
51 | * valid; otherwise the method should return an array of | |
52 | * <code>ValidationMessage</code> objects. An array of length zero is | |
53 | * also interpreted as no errors. | |
54 | * | |
55 | * @param prefix The value of the prefix argument in this directive | |
56 | * @param uri The value of the URI argument in this directive | |
57 | * @param page The page data for this page | |
58 | */ | |
59 | 0 | public ValidationMessage[] validate(String prefix, String uri, |
60 | PageData page) { | |
61 | ||
62 | 0 | System.out.println("---------- Prefix=" + prefix + " URI=" + uri + |
63 | "----------"); | |
64 | ||
65 | 0 | InputStream is = page.getInputStream(); |
66 | 0 | while (true) { |
67 | 0 | try { |
68 | 0 | int ch = is.read(); |
69 | 0 | if (ch < 0) |
70 | 0 | break; |
71 | 0 | System.out.print((char) ch); |
72 | } catch (IOException e) { | |
73 | 0 | break; |
74 | } | |
75 | } | |
76 | 0 | System.out.println(); |
77 | 0 | System.out.println("-----------------------------------------------"); |
78 | 0 | return (null); |
79 | ||
80 | } | |
81 | ||
82 | ||
83 | } |
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