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1
23
24 package org.objectweb.fractal.adl.attributes;
25
26 import java.lang.reflect.Method  ;
27
28
31
32 public class JavaAttributeBuilder implements AttributeBuilder {
33
34
38 public void setAttribute (
39 final Object component,
40 final String attributeController,
41 final String name,
42 final String value,
43 final Object context) throws Exception
44 {
45 Class c = component.getClass();
46
47 String attrName = Character.toUpperCase(name.charAt(0)) + name.substring(1);
48
49 String getterName = "get" + attrName;
51 String setterName = "set" + attrName;
52 Method getter = c.getMethod(getterName, new Class [0]);
53 Method setter = c.getMethod(setterName, new Class [] {
54 getter.getReturnType()
55 });
56 Class attrType = getter.getReturnType();
57 Object attrValue;
58 if (attrType.equals(String .class)) {
59 attrValue = value;
60 } else if (attrType.isPrimitive()) {
61 if (attrType.equals(Integer.TYPE)) {
62 attrValue = Integer.valueOf(value);
63 } else if (attrType.equals(Long.TYPE)) {
64 attrValue = Long.valueOf(value);
65 } else if (attrType.equals(Float.TYPE)) {
66 attrValue = Float.valueOf(value);
67 } else if (attrType.equals(Double.TYPE)) {
68 attrValue = Double.valueOf(value);
69 } else if (attrType.equals(Byte.TYPE)) {
70 attrValue = Byte.valueOf(value);
71 } else if (attrType.equals(Character.TYPE)) {
72 if (value.length() != 1) {
73 throw new Exception ("Bad char value: " + value);
74 }
75 attrValue = new Character (value.charAt(0));
76 } else if (attrType.equals(Short.TYPE)) {
77 attrValue = Short.valueOf(value);
78 } else if (attrType.equals(Boolean.TYPE)) {
79 if (!value.equals("true") &&
80 !value.equals("false"))
81 {
82 throw new Exception ("Bad boolean value: " + value);
83 }
84 attrValue = new Boolean (value.equals("true"));
85 } else {
86 throw new Exception ("Unexpected case");
87 }
88 } else {
89 throw new Exception ("Unsupported attribute type: " + attrType);
90 }
91 setter.invoke(component, new Object []{attrValue});
92 }
93 }
94 |
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