1
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3
4
5
6
7 package org.mule.config.expression;
8
9 import org.mule.api.annotations.expressions.Lookup;
10 import org.mule.api.annotations.meta.Evaluator;
11 import org.mule.api.expression.ExpressionAnnotationParser;
12 import org.mule.expression.ExpressionConfig;
13 import org.mule.expression.transformers.ExpressionArgument;
14 import org.mule.util.StringUtils;
15
16 import java.lang.annotation.Annotation;
17
18
19
20
21
22
23
24
25
26 public class LookupAnnotationParser implements ExpressionAnnotationParser
27 {
28 public ExpressionArgument parse(Annotation annotation, Class<?> parameterType)
29 {
30 Evaluator evaluator = annotation.annotationType().getAnnotation(Evaluator.class);
31 if (evaluator != null)
32 {
33 String expression = ((Lookup) annotation).value();
34 if(StringUtils.isEmpty(expression))
35 {
36 expression = "type:" + parameterType.getName();
37 }
38 return new ExpressionArgument(null, new ExpressionConfig(expression,
39 evaluator.value(), null), ((Lookup) annotation).optional(), parameterType);
40 }
41 else
42 {
43 throw new IllegalArgumentException("The @Evaluator annotation must be set on an Expression Annotation");
44 }
45
46 }
47
48 public boolean supports(Annotation annotation)
49 {
50 return annotation instanceof Lookup;
51 }
52 }