/** Find the value for an annotation */
private Object getElementValue(String name, Class<?> valueType) {
for (AnnotationMember evp : elementValuePairs) {
String evpFieldName = evp.getName().toString();
if (name.equals(evpFieldName)) {
return evp.getValue();
}
}
MethodReference methRef =
MemberReference.findOrCreate(
type,
Atom.findOrCreateAsciiAtom(name),
Atom.findOrCreateAsciiAtom("()" + TypeReference.findOrCreate(valueType).getName()))
.asMethodReference();
try {
return methRef.resolve().getAnnotationDefault();
} catch (Throwable t) {
return NO_VALUE;
}
}
/** Ordering for sorted annotation members */
public int compareTo(AnnotationMember am) {
if (am.meth != this.meth) {
return am.getName().toString().compareTo(this.getName().toString());
} else {
if (value.getClass().isArray()) {
return Arrays.hashCode((Object[]) value) - Arrays.hashCode((Object[]) am.value);
} else {
@SuppressWarnings("unchecked") // True generic programming, we can't type check it in Java
Comparable<Object> cValue = (Comparable) value;
return cValue.compareTo(am.value);
}
}
}
/**
* Read an annotation attribute from the class file
*
* @param constantPool from constant pool being loaded
* @param input the data being read
*/
static RVMAnnotation readAnnotation(
int[] constantPool, DataInputStream input, ClassLoader classLoader)
throws IOException, ClassNotFoundException {
TypeReference type;
// Read type
int typeIndex = input.readUnsignedShort();
type = TypeReference.findOrCreate(classLoader, RVMClass.getUtf(constantPool, typeIndex));
// Read values
int numAnnotationMembers = input.readUnsignedShort();
AnnotationMember[] elementValuePairs = new AnnotationMember[numAnnotationMembers];
for (int i = 0; i < numAnnotationMembers; i++) {
elementValuePairs[i] =
AnnotationMember.readAnnotationMember(type, constantPool, input, classLoader);
}
// Arrays.sort(elementValuePairs);
RVMAnnotation result = new RVMAnnotation(type, elementValuePairs);
RVMAnnotation unique = uniqueMap.get(result);
if (unique != null) {
return unique;
} else {
uniqueMap.put(result, result);
return result;
}
}
