MappingType🔗
Supported value mapping types
value
: Maps text values to a color or different display text and color. For example, you can configure a value mapping so that all instances of the value 10 appear as Perfection! rather than the number.
range
: Maps numerical ranges to a display text and color. For example, if a value is within a certain range, you can configure a range value mapping to display Low or High rather than the number.
regex
: Maps regular expressions to replacement text and a color. For example, if a value is www.example.com, you can configure a regex value mapping so that Grafana displays www and truncates the domain.
special
: Maps special values like Null, NaN (not a number), and boolean values like true and false to a display text and color. See SpecialValueMatch to see the list of special values. For example, you can configure a special value mapping so that null values appear as N/A.
Definition🔗
final class MappingType implements \JsonSerializable, \Stringable {
/**
* @var string
*/
private $value;
/**
* @var array<string, MappingType>
*/
private static $instances = [];
private function __construct(string $value)
{
$this->value = $value;
}
public static function valueToText(): self
{
if (!isset(self::$instances["ValueToText"])) {
self::$instances["ValueToText"] = new self("value");
}
return self::$instances["ValueToText"];
}
public static function rangeToText(): self
{
if (!isset(self::$instances["RangeToText"])) {
self::$instances["RangeToText"] = new self("range");
}
return self::$instances["RangeToText"];
}
public static function regexToText(): self
{
if (!isset(self::$instances["RegexToText"])) {
self::$instances["RegexToText"] = new self("regex");
}
return self::$instances["RegexToText"];
}
public static function specialValue(): self
{
if (!isset(self::$instances["SpecialValue"])) {
self::$instances["SpecialValue"] = new self("special");
}
return self::$instances["SpecialValue"];
}
public static function fromValue(string $value): self
{
if ($value === "value") {
return self::valueToText();
}
if ($value === "range") {
return self::rangeToText();
}
if ($value === "regex") {
return self::regexToText();
}
if ($value === "special") {
return self::specialValue();
}
throw new \UnexpectedValueException("Value '$value' is not part of the enum MappingType");
}
public function jsonSerialize(): string
{
return $this->value;
}
public function __toString(): string
{
return $this->value;
}
}