1 files changed, 38 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Common/Configuration/Parser/RatioParser.php b/vendor/open-telemetry/sdk/Common/Configuration/Parser/RatioParser.php
new file mode 100644
index 000000000..f0fe32100
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Common/Configuration/Parser/RatioParser.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Common\Configuration\Parser;
+
+use InvalidArgumentException;
+use RangeException;
+
+class RatioParser
+{
+    private const MAX_VALUE = 1;
+    private const MIN_VALUE = 0;
+
+    public static function parse($value): float
+    {
+        if (filter_var($value, FILTER_VALIDATE_FLOAT) === false) {
+            throw new InvalidArgumentException(
+                sprintf('Value "%s" contains non-numeric value', $value)
+            );
+        }
+
+        $result = (float) $value;
+
+        if ($result > self::MAX_VALUE || $result < self::MIN_VALUE) {
+            throw new RangeException(
+                sprintf(
+                    'Value must not be lower than %s or higher than %s. Given: %s',
+                    self::MIN_VALUE,
+                    self::MAX_VALUE,
+                    $value
+                )
+            );
+        }
+
+        return $result;
+    }
+}