/**
* @param name
* @return
* @throws Exception
*/
@RequestMapping(value = "/greeting2", method = RequestMethod.GET)
@ResponseBody
public String greeting2(
@RequestParam(value = "name", required = false, defaultValue = "World") String name)
throws Exception {
GroovyScriptEngine engine = new GroovyScriptEngine("src\\main\\groovy");
Class aClass = engine.loadScriptByName("hello/Greeter.groovy");
IGreeter greeter = (IGreeter) aClass.newInstance();
return greeter.sayHello();
}
private Object[] getPossibleValues(
MethodParameter methodParameter, AnnotatedParameters actionDescriptor) {
try {
Class<?> parameterType = methodParameter.getNestedParameterType();
Object[] possibleValues;
Class<?> nested;
if (Enum[].class.isAssignableFrom(parameterType)) {
possibleValues = parameterType.getComponentType().getEnumConstants();
} else if (Enum.class.isAssignableFrom(parameterType)) {
possibleValues = parameterType.getEnumConstants();
} else if (Collection.class.isAssignableFrom(parameterType)
&& Enum.class.isAssignableFrom(
nested = TypeDescriptor.nested(methodParameter, 1).getType())) {
possibleValues = nested.getEnumConstants();
} else {
Select select = methodParameter.getParameterAnnotation(Select.class);
if (select != null) {
Class<? extends Options> optionsClass = select.options();
Options options = optionsClass.newInstance();
// collect call values to pass to options.get
List<Object> from = new ArrayList<Object>();
for (String paramName : select.args()) {
AnnotatedParameter parameterValue = actionDescriptor.getAnnotatedParameter(paramName);
if (parameterValue != null) {
from.add(parameterValue.getCallValue());
}
}
Object[] args = from.toArray();
possibleValues = options.get(select.value(), args);
} else {
possibleValues = new Object[0];
}
}
return possibleValues;
} catch (Exception e) {
throw new RuntimeException(e);
}
}