/**
* Inspect method.
*
* @param method the method
* @return the annotated field method
*/
public static AnnotatedFieldMethod inspectMethod(Method method) {
Dynamic runtime = method.getAnnotation(Dynamic.class);
Field.Property function = runtime.value();
switch (function) {
case LENGTH:
case OFFSET:
checkSignature(method, int.class);
return new IntFunction(method, function);
case MASK:
checkSignature(method, long.class);
return new LongFunction(method, function);
case VALUE:
checkSignature(method, Object.class);
return new ObjectFunction(method, function);
case CHECK:
checkSignature(method, boolean.class);
return new BooleanFunction(method, function);
case DISPLAY:
case DESCRIPTION:
checkSignature(method, String.class);
return new StringFunction(method, function);
default:
throw new HeaderDefinitionError("Unsupported Dynamic function type " + function.toString());
}
}
/**
* Instantiates a new annotated field method.
*
* @param method the method
* @param function the function
*/
public AnnotatedFieldMethod(Method method, Field.Property function) {
super(method);
this.function = function;
Dynamic runtime = method.getAnnotation(Dynamic.class);
if (runtime == null) {
throw new HeaderDefinitionError(
method.getDeclaringClass(), "unable get field's annotated runtime");
}
if (runtime.field().length() != 0) {
this.field = runtime.field();
} else {
this.field = guessFieldName(method.getName());
}
}
/**
* Check annotation.
*
* @param method the method
* @param fields the fields
*/
public static void checkAnnotation(Method method, List<AnnotatedField> fields) {
Dynamic runtime = method.getAnnotation(Dynamic.class);
if (runtime.field().length() != 0) {
boolean found = false;
final String name = runtime.field();
for (AnnotatedField f : fields) {
if (f.getName().equals(name)) {
found = true;
break;
}
}
if (!found) {
throw new HeaderDefinitionError("field name defined in annotation ");
}
}
}