public Map<?, ?> resolve(Invocation inv, ParamMetaData metaData) {
if (StringUtils.isNotEmpty(metaData.getParamName())) {
Class<?>[] genericTypes = (Class[]) metaData.getUserObject(this);
Class<?> keyType = genericTypes[0];
Class<?> valueType = genericTypes[1];
Map<?, ?> toConvert =
WebUtils.getParametersStartingWith(
inv.getRequest(), metaData.getParamName() + MAP_SEPARATOR);
if (toConvert != null) {
if (keyType != String.class || valueType != String.class) {
Map<Object, Object> ret = new HashMap<Object, Object>();
for (Map.Entry<?, ?> entry : toConvert.entrySet()) {
Object key = entry.getKey();
Object value = entry.getValue();
TypeConverter typeConverter = SafedTypeConverterFactory.getCurrentConverter();
if (keyType != String.class) {
key = typeConverter.convertIfNecessary(key, keyType);
}
if (valueType != String.class) {
value = typeConverter.convertIfNecessary(value, valueType);
}
ret.put(key, value);
}
return ret;
}
return toConvert;
}
}
return new HashMap<Object, Object>(2);
}
public BindingResult resolve(Invocation inv, ParamMetaData metaData) {
if (metaData.getParamName() != null) {
return inv.getBindingResult(metaData.getParamName());
} else {
return inv.getParameterBindingResult();
}
}
public Object resolve(Invocation inv, ParamMetaData metaData) {
Object bean = MvcBeanUtils.instantiateClass(metaData.getParamType());
ServletRequestDataBinder binder;
if (!metaData.isAnnotationPresent(Param.class)) {
binder = new ServletRequestDataBinder(bean);
} else {
binder = new ServletRequestDataBinder(bean, metaData.getParamName());
}
binder.bind(inv.getRequest());
String bindingResultName =
BindingResult.MODEL_KEY_PREFIX + metaData.getParamName() + "BindingResult";
inv.addModel(bindingResultName, binder.getBindingResult());
return bean;
}
@SuppressWarnings("unchecked")
private static Object resolveArray(
Invocation inv, ParamMetaData metaData, Class<?> compnentType) {
if (compnentType == MultipartFile.class) {
String filterName = metaData.getParamName();
if (filterName == null) {
filterName = "";
}
if (inv.getRequest() instanceof MultipartRequest) {
List<MultipartFile> files = new LinkedList<MultipartFile>();
MultipartRequest multipartRequest = (MultipartRequest) inv.getRequest();
Iterator<String> names = multipartRequest.getFileNames();
while (names.hasNext()) {
String name = names.next();
if (name.startsWith(filterName)) {
files.add(multipartRequest.getFile(name));
}
}
return files.toArray(new MultipartFile[0]);
} else {
if (logger.isDebugEnabled()) {
logger.debug(
"cann't "
+ "set MultipartFile param to method "
+ ", the request is not a MultipartRequest");
}
}
} else {
Object toConvert = null;
for (String paramName : metaData.getParamNames()) {
if (paramName != null) {
toConvert = inv.getRequest().getParameterValues(paramName);
if (toConvert != null) {
break;
}
}
}
if (toConvert != null) {
if (((String[]) toConvert).length == 1) {
toConvert = ((String[]) toConvert)[0].split(",");
}
Class<?> arrayType;
if (metaData.getParamType().isArray()) {
arrayType = metaData.getParamType();
} else {
arrayType = arrayTypeMap.get(compnentType);
if (arrayType == null) {
arrayType = Array.newInstance((Class<?>) compnentType, 0).getClass();
}
}
TypeConverter typeConverter = SafedTypeConverterFactory.getCurrentConverter();
Object array = typeConverter.convertIfNecessary(toConvert, arrayType);
return array;
}
}
return Array.newInstance((Class<?>) compnentType, 0);
}
public MultipartFile resolve(Invocation inv, ParamMetaData metaData) {
MultipartFile multipartFile = null;
if (inv.getRequest() instanceof MultipartRequest) {
MultipartRequest multipartRequest = (MultipartRequest) inv.getRequest();
String fileName = metaData.getParamName();
if (StringUtils.isBlank(fileName)) {
@SuppressWarnings("unchecked")
Iterator<String> allFileNames = multipartRequest.getFileNames();
if (allFileNames.hasNext()) {
fileName = allFileNames.next();
}
}
if (StringUtils.isNotBlank(fileName)) {
multipartFile = multipartRequest.getFile(fileName);
}
if (multipartFile == null) {
if (StringUtils.isNotBlank(fileName)) {
if (logger.isDebugEnabled()) {
logger.debug(
"not found multipartFile named "
+ fileName
+ " in this request: "
+ inv.getRequestPath().getUri());
}
} else {
if (logger.isDebugEnabled()) {
logger.debug(
"not found MultipartFile named:"
+ metaData.getParamName()
+ " in this request: "
+ inv.getRequestPath().getUri());
}
}
}
} else {
if (logger.isDebugEnabled()) {
logger.debug(
"cann't set MultipartFile param to method "
+ ", the request is not a MultipartRequest");
}
}
return multipartFile;
}
