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1   /*
2    * $Id: OgnlAnnotationParser.java 19191 2010-08-25 21:05:23Z tcarlson $
3    * --------------------------------------------------------------------------------------
4    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
5    *
6    * The software in this package is published under the terms of the CPAL v1.0
7    * license, a copy of which has been included with this distribution in the
8    * LICENSE.txt file.
9    */
10  package org.mule.module.ognl.config;
11  
12  import org.mule.api.annotations.expression.Ognl;
13  import org.mule.api.annotations.meta.Evaluator;
14  import org.mule.api.expression.ExpressionAnnotationParser;
15  import org.mule.expression.ExpressionConfig;
16  import org.mule.expression.transformers.ExpressionArgument;
17  
18  import java.lang.annotation.Annotation;
19  
20  /**
21   * TODO
22   */
23  public class OgnlAnnotationParser implements ExpressionAnnotationParser
24  {
25      public ExpressionArgument parse(Annotation annotation, Class<?> parameterType)
26      {
27          Evaluator evaluator = annotation.annotationType().getAnnotation(Evaluator.class);
28          if (evaluator != null)
29          {
30              return new ExpressionArgument(null, new ExpressionConfig(((Ognl) annotation).value(),
31                      evaluator.value(), null), ((Ognl) annotation).optional(), parameterType);
32          }
33          else
34          {
35              throw new IllegalArgumentException("The @Evaluator annotation must be set on an Expression Annotation");
36          }
37      }
38  
39      public boolean supports(Annotation annotation)
40      {
41          return annotation instanceof Ognl;
42      }
43  }