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Java > Open Source Codes > org > jboss > annotation > factory > SimpleAnnotationValidator


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.annotation.factory;
23
24 import java.lang.reflect.Method JavaDoc;
25 import java.security.AccessController JavaDoc;
26 import java.security.PrivilegedAction JavaDoc;
27 import java.util.ArrayList JavaDoc;
28 import java.util.Map JavaDoc;
29
30 /**
31  * Validates if all attributes have been filled in for an annotation.
32  * Makes no attempt to read default values
33  *
34  * @author <a HREF="kabir.khan@jboss.com">Kabir Khan</a>
35  * @version $Revision: 57133 $
36  */
37 public class SimpleAnnotationValidator implements AnnotationValidator
38 {
39
40    public void validate(Map JavaDoc map, Class JavaDoc annotation)
41    {
42       ArrayList JavaDoc<String JavaDoc> notAssignedAttributes = null;
43       Method JavaDoc[] methods = getDeclaredMethods(annotation);
44       for (int i = 0 ; i < methods.length ; i++)
45       {
46          if (map.get(methods[i].getName()) == null)
47          {
48             if (notAssignedAttributes == null)
49             {
50                notAssignedAttributes = new ArrayList JavaDoc<String JavaDoc>();
51             }
52             notAssignedAttributes.add(methods[i].getName());
53          }
54       }
55
56       if (notAssignedAttributes != null)
57       {
58          throw new AnnotationValidationException("Unable to fill in default attributes for " + annotation + " " + notAssignedAttributes);
59       }
60    }
61    
62    private Method JavaDoc[] getDeclaredMethods(final Class JavaDoc clazz)
63    {
64       return AccessController.doPrivileged(new PrivilegedAction JavaDoc<Method JavaDoc[]>()
65       {
66          public Method JavaDoc[] run()
67          {
68             return clazz.getDeclaredMethods();
69          };
70       });
71    }
72
73 }
74
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