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Java > Open Source Codes > org > jboss > reflect > plugins > javassist > JavassistAnnotatedInfo


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2006, 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.reflect.plugins.javassist;
23
24 import java.util.HashMap JavaDoc;
25
26 import org.jboss.reflect.plugins.AnnotationHelper;
27 import org.jboss.reflect.spi.AnnotatedInfo;
28 import org.jboss.reflect.spi.AnnotationInfo;
29 import org.jboss.reflect.spi.AnnotationValue;
30 import org.jboss.util.JBossObject;
31
32 /**
33  * JavassistAnnotatedInfo.
34  *
35  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
36  * @version $Revision: 45764 $
37  */
38 public abstract class JavassistAnnotatedInfo extends JBossObject implements AnnotatedInfo
39 {
40    final static AnnotationValue[] NOT_CONFIGURED = new AnnotationValue[0];
41
42    /** The annotations */
43    protected AnnotationValue[] annotationsArray = NOT_CONFIGURED;
44
45    /** Annotations map Map<String, AnnotationValue> */
46    protected HashMap JavaDoc<String JavaDoc, AnnotationValue> annotationMap;
47
48    protected AnnotationHelper annotationHelper;
49    
50    public JavassistAnnotatedInfo(AnnotationHelper annotationHelper)
51    {
52       this.annotationHelper = annotationHelper;
53    }
54
55    protected AnnotationValue[] getAnnotations(Object JavaDoc obj)
56    {
57       synchronized (this)
58       {
59          if (annotationsArray == NOT_CONFIGURED)
60          {
61             annotationsArray = null;
62             setupAnnotations(annotationHelper.getAnnotations(obj));
63          }
64       }
65       return annotationsArray;
66    }
67
68    public AnnotationValue getAnnotation(String JavaDoc name)
69    {
70       getAnnotations();
71       return annotationMap.get(name);
72    }
73
74    public boolean isAnnotationPresent(String JavaDoc name)
75    {
76       getAnnotations();
77       return annotationMap.containsKey(name);
78    }
79    
80    /**
81     * Set up the annotations
82     *
83     * @param annotations the annotations
84     */
85    protected void setupAnnotations(AnnotationValue[] annotations)
86    {
87       if (annotations != null && annotations.length > 0)
88       {
89          this.annotationsArray = annotations;
90          annotationMap = new HashMap JavaDoc<String JavaDoc, AnnotationValue>();
91          for (int i = 0; i < annotations.length; i++)
92          {
93             AnnotationInfo type = annotations[i].getAnnotationType();
94             annotationMap.put(type.getName(), annotations[i]);
95          }
96       }
97    }
98    
99 }
100
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