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10 package org.mule.config.expression;
11
12 import org.mule.api.annotations.expressions.Mule;
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;
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28 public class MuleAnnotationParser implements ExpressionAnnotationParser
29 {
30 public ExpressionArgument parse(Annotation annotation, Class parameterType)
31 {
32 Evaluator evaluator = annotation.annotationType().getAnnotation(Evaluator.class);
33 if (evaluator != null)
34 {
35 Mule muleAnnotation = (Mule)annotation;
36 String val = muleAnnotation.value();
37
38 if ("message.payload".equals(val))
39 {
40
41 val += "(" + parameterType.getName() + ")";
42 }
43
44 return new ExpressionArgument(null, new ExpressionConfig(val, evaluator.value(), null),
45 muleAnnotation.optional(), parameterType);
46 }
47 else
48 {
49 throw new IllegalArgumentException("The @Evaluator annotation must be set on an Expression Annotation");
50 }
51
52 }
53
54 public boolean supports(Annotation annotation)
55 {
56 return annotation instanceof Mule;
57 }
58 }