private static void validate(DataTemplate<?> data, Class<?> clazz) {
final ValidationResult valResult =
ValidateDataAgainstSchema.validate(data.data(), data.schema(), _defaultValOptions);
if (!valResult.isValid()) {
throw new IllegalArgumentException(
"Coercing String \""
+ data.data()
+ "\" to type "
+ clazz.getName()
+ " failed due to schema validation: "
+ valResult.getMessages());
}
}
private static DataTemplate<?> buildDataTemplateArgument(
final ResourceContext context, final Parameter<?> param) {
Object paramValue = context.getStructuredParameter(param.getName());
DataTemplate<?> paramRecordTemplate;
if (paramValue == null) {
return null;
} else {
@SuppressWarnings("unchecked")
final Class<? extends RecordTemplate> paramType =
(Class<? extends RecordTemplate>) param.getType();
/**
* It is possible for the paramValue provided by ResourceContext to be coerced to the wrong
* type. If a query param is a single value param for example www.domain.com/resource?foo=1.
* Then ResourceContext will parse foo as a String with value = 1. However if a query param
* contains many values for example www.domain.com/resource?foo=1&foo=2&foo=3 Then
* ResourceContext will parse foo as an DataList with value [1,2,3]
*
* <p>So this means if the 'final' type of a query param is an Array and the paramValue we
* received from ResourceContext is not a DataList we will have to wrap the paramValue inside
* a DataList
*/
if (AbstractArrayTemplate.class.isAssignableFrom(paramType)
&& paramValue.getClass() != DataList.class) {
paramRecordTemplate =
DataTemplateUtil.wrap(new DataList(Arrays.asList(paramValue)), paramType);
} else {
paramRecordTemplate = DataTemplateUtil.wrap(paramValue, paramType);
}
// Validate against the class schema with FixupMode.STRING_TO_PRIMITIVE to parse the
// strings into the corresponding primitive types.
ValidateDataAgainstSchema.validate(
paramRecordTemplate.data(),
paramRecordTemplate.schema(),
new ValidationOptions(
RequiredMode.CAN_BE_ABSENT_IF_HAS_DEFAULT, CoercionMode.STRING_TO_PRIMITIVE));
return paramRecordTemplate;
}
}
/**
* Build a method argument from a request parameter that is an array
*
* @param context {@link ResourceContext}
* @param param {@link Parameter}
* @return argument value in the correct type
*/
private static Object buildArrayArgument(
final ResourceContext context, final Parameter<?> param) {
final Object convertedValue;
if (DataTemplate.class.isAssignableFrom(param.getItemType())) {
final DataList itemsList = (DataList) context.getStructuredParameter(param.getName());
convertedValue = Array.newInstance(param.getItemType(), itemsList.size());
int j = 0;
for (Object paramData : itemsList) {
final DataTemplate<?> itemsElem =
DataTemplateUtil.wrap(paramData, param.getItemType().asSubclass(DataTemplate.class));
ValidateDataAgainstSchema.validate(
itemsElem.data(),
itemsElem.schema(),
new ValidationOptions(
RequiredMode.CAN_BE_ABSENT_IF_HAS_DEFAULT, CoercionMode.STRING_TO_PRIMITIVE));
Array.set(convertedValue, j++, itemsElem);
}
} else {
final List<String> itemStringValues = context.getParameterValues(param.getName());
ArrayDataSchema parameterSchema = null;
if (param.getDataSchema() instanceof ArrayDataSchema) {
parameterSchema = (ArrayDataSchema) param.getDataSchema();
} else {
throw new RoutingException(
"An array schema is expected.", HttpStatus.S_400_BAD_REQUEST.getCode());
}
convertedValue = Array.newInstance(param.getItemType(), itemStringValues.size());
int j = 0;
for (String itemStringValue : itemStringValues) {
if (itemStringValue == null) {
throw new RoutingException(
"Parameter '" + param.getName() + "' cannot contain null values",
HttpStatus.S_400_BAD_REQUEST.getCode());
}
try {
Array.set(
convertedValue,
j++,
ArgumentUtils.convertSimpleValue(
itemStringValue, parameterSchema.getItems(), param.getItemType()));
} catch (NumberFormatException e) {
Class<?> targetClass =
DataSchemaUtil.dataSchemaTypeToPrimitiveDataSchemaClass(
parameterSchema.getItems().getDereferencedType());
// thrown from Integer.valueOf or Long.valueOf
throw new RoutingException(
String.format(
"Array parameter '%s' value '%s' must be of type '%s'",
param.getName(), itemStringValue, targetClass.getName()),
HttpStatus.S_400_BAD_REQUEST.getCode());
} catch (IllegalArgumentException e) {
// thrown from Enum.valueOf
throw new RoutingException(
String.format(
"Array parameter '%s' value '%s' is invalid", param.getName(), itemStringValue),
HttpStatus.S_400_BAD_REQUEST.getCode());
} catch (TemplateRuntimeException e) {
// thrown from DataTemplateUtil.coerceOutput
throw new RoutingException(
String.format(
"Array parameter '%s' value '%s' is invalid. Reason: %s",
param.getName(), itemStringValue, e.getMessage()),
HttpStatus.S_400_BAD_REQUEST.getCode());
}
}
}
return convertedValue;
}