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1 package net.sourceforge.pmd.properties;
2
3 import java.lang.reflect.Method  ;
4
5
8 public class MethodProperty extends AbstractPMDProperty {
9
10
17 public MethodProperty(String theName, String theDescription, Object theDefault, float theUIOrder) {
18 super(theName, theDescription, theDefault, theUIOrder);
19 }
20
21
26 public Class type() {
27 return Method .class;
28 }
29
30
37 public Object valueFrom(String propertyString) throws IllegalArgumentException {
38
39 Class cls = classIn(propertyString);
40 String methodName = methodNameIn(propertyString);
41 Class [] parameterTypes = parameterTypesIn(propertyString);
42
43 try {
44 return cls.getMethod(methodName, parameterTypes);
45 } catch (Exception e) {
46 throw new IllegalArgumentException ("invalid method: " + propertyString);
47 }
48 }
49
50 private Class classIn(String propertyString) throws IllegalArgumentException {
51
52 int dotPos = propertyString.lastIndexOf('.');
53 String className = propertyString.substring(0, dotPos);
54
55 try {
56 return Class.forName(className);
57 } catch (Exception ex) {
58 throw new IllegalArgumentException ("class not found: " + className);
59 }
60 }
61
62 private String methodNameIn(String propertyString) throws IllegalArgumentException {
63
64 int dotPos = propertyString.lastIndexOf('.');
65 return propertyString.substring(dotPos);
66 }
67
68 private Class [] parameterTypesIn(String propertyString) {
69 return null;
70 }
71 }
72 |
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