/**
* Validates a list of dimension names
*
* @param names
*/
public static void validateNames(List<String> names) {
if (names != null) {
for (String name : names) {
if (Strings.isNullOrEmpty(name)) {
throw Exceptions.unprocessableEntity("Dimension name cannot be empty");
}
if (name.length() > 255) {
throw Exceptions.unprocessableEntity(
"Dimension name '%s' must be 255 characters or less", name);
}
// Dimension names that start with underscores are reserved for internal use only.
if (name.startsWith("_")) {
throw Exceptions.unprocessableEntity(
"Dimension name '%s' cannot start with underscore (_)", name);
}
if (!VALID_DIMENSION_NAME.matcher(name).matches())
throw Exceptions.unprocessableEntity(
"Dimension name '%s' may not contain: %s", name, INVALID_CHAR_STRING);
}
}
}
/**
* Validates that the given {@code dimensions} are valid.
*
* @throws WebApplicationException if validation fails
*/
public static void validate(Map<String, String> dimensions, @Nullable String service) {
// Validate dimension names and values
for (Map.Entry<String, String> dimension : dimensions.entrySet()) {
String name = dimension.getKey();
String value = dimension.getValue();
// General validations
if (Strings.isNullOrEmpty(name))
throw Exceptions.unprocessableEntity("Dimension name cannot be empty");
if (Strings.isNullOrEmpty(value))
throw Exceptions.unprocessableEntity("Dimension %s cannot have an empty value", name);
if (name.length() > 255)
throw Exceptions.unprocessableEntity(
"Dimension name %s must be 255 characters or less", name);
if (value.length() > 255)
throw Exceptions.unprocessableEntity(
"Dimension value %s must be 255 characters or less", value);
// Dimension names that start with underscores are reserved for internal use only.
if (name.startsWith("_")) {
throw Exceptions.unprocessableEntity(
"Dimension name cannot start with underscore (_)", name);
}
if (!VALID_DIMENSION_NAME.matcher(name).matches())
throw Exceptions.unprocessableEntity(
"Dimension name %s may not contain: %s", name, INVALID_CHAR_STRING);
// Service specific validations
if (service != null) {
if (!name.equals(Services.SERVICE_DIMENSION)
&& !Services.isValidDimensionName(service, name))
throw Exceptions.unprocessableEntity(
"%s is not a valid dimension name for service %s", name, service);
DimensionValidator validator = VALIDATORS.get(service);
if (validator != null && !validator.isValidDimension(name, value))
throw Exceptions.unprocessableEntity(
"%s is not a valid dimension value for service %s", value, service);
}
}
}