/**
* @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 boolean isAnnotationPresent(
Annotation[] annotations, Class<? extends Annotation> annotationClass) {
for (Annotation annotation : annotations) {
if (annotationClass.isInstance(annotation)) {
return true;
}
}
return false;
}
/**
* Allows convenient access to multiple call values in case that this input parameter is an array
* or collection. Make sure to check {@link #isArrayOrCollection()} before calling this method.
*
* @return call values
* @throws UnsupportedOperationException if this input parameter is not an array or collection
*/
public Object[] getCallValues() {
Object[] callValues;
if (!isArrayOrCollection()) {
throw new UnsupportedOperationException("parameter is not an array or collection");
}
Object callValue = getCallValue();
if (callValue == null) {
callValues = new Object[0];
} else {
Class<?> parameterType = getParameterType();
if (parameterType.isArray()) {
callValues = (Object[]) callValue;
} else {
callValues = ((Collection<?>) callValue).toArray();
}
}
return callValues;
}
private String getValue(Annotation[] annotations, Class<? extends Annotation> annotationClass) {
for (Annotation annotation : annotations) {
if (annotationClass.isInstance(annotation)) {
Method valueMethod = ReflectionUtils.findMethod(annotationClass, "value");
if (valueMethod != null) {
return (String) ReflectionUtils.invokeMethod(valueMethod, annotation);
} else {
return null;
}
}
}
return null;
}
@Override
public RestMethodMetadata parse(Class<?> clientClass, Method method) {
RestMethodMetadata metadata = new RestMethodMetadata();
RequestMapping classMapping = clientClass.getAnnotation(RequestMapping.class);
RequestMapping methodMapping = method.getAnnotation(RequestMapping.class);
metadata.setCommonPath(getPath(classMapping));
metadata.setAdditionalPath(getPath(methodMapping));
metadata.setHttpMethod(getHttpMethod(classMapping, methodMapping));
metadata.setResponseClass(getResponseType(method));
metadata.setMethodReturnType(method.getReturnType());
metadata.setRequestHeaderParameters(getParametersWithAnnotation(method, RequestHeader.class));
metadata.setUriVarParameters(getParametersWithAnnotation(method, PathVariable.class));
metadata.setQueryParameters(getParametersWithAnnotation(method, RequestParam.class));
metadata.setRequestParameter(getRequestParameter(method));
return metadata;
}
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);
}
}