private static Class<?> getDataClassFromSchema(DataSchema schema) {
/**
* FieldDefs representing context, pagination, or things relating to synchronization will not
* have schemas, so we must allow for null schemas. See
* RestModelConstants.CLASSES_WITHOUT_SCHEMAS for a list.
*
* <p>All other FieldDefs should have schemas, however.
*/
if (schema == null) {
return null;
}
return DataSchemaUtil.dataSchemaTypeToPrimitiveDataSchemaClass(schema.getDereferencedType());
}
/**
* Build a method argument from a request parameter that is NOT backed by a schema, i.e. a
* primitive or an array
*
* @param context {@link ResourceContext}
* @param param {@link Parameter}
* @return argument value in the correct type
*/
private static Object buildRegularArgument(
final ResourceContext context, final Parameter<?> param) {
String value =
ArgumentUtils.argumentAsString(context.getParameter(param.getName()), param.getName());
final Object convertedValue;
if (value == null) {
return null;
} else {
if (param.isArray()) {
convertedValue = buildArrayArgument(context, param);
} else {
try {
convertedValue =
ArgumentUtils.convertSimpleValue(value, param.getDataSchema(), param.getType());
} catch (NumberFormatException e) {
Class<?> targetClass =
DataSchemaUtil.dataSchemaTypeToPrimitiveDataSchemaClass(
param.getDataSchema().getDereferencedType());
// thrown from Integer.valueOf or Long.valueOf
throw new RoutingException(
String.format(
"Argument parameter '%s' value '%s' must be of type '%s'",
param.getName(), value, targetClass.getName()),
HttpStatus.S_400_BAD_REQUEST.getCode());
} catch (IllegalArgumentException e) {
// thrown from Enum.valueOf
throw new RoutingException(
String.format(
"Argument parameter '%s' value '%s' is invalid", param.getName(), value),
HttpStatus.S_400_BAD_REQUEST.getCode());
} catch (TemplateRuntimeException e) {
// thrown from DataTemplateUtil.coerceOutput
throw new RoutingException(
String.format(
"Argument parameter '%s' value '%s' is invalid. Reason: %s",
param.getName(), value, e.getMessage()),
HttpStatus.S_400_BAD_REQUEST.getCode());
}
}
}
return convertedValue;
}
/**
* 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;
}