1 files changed, 45 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Common/Configuration/Parser/MapParser.php b/vendor/open-telemetry/sdk/Common/Configuration/Parser/MapParser.php
new file mode 100644
index 000000000..273d57c87
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Common/Configuration/Parser/MapParser.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Common\Configuration\Parser;
+
+use InvalidArgumentException;
+
+class MapParser
+{
+    private const VARIABLE_SEPARATOR = ',';
+    private const KEY_VALUE_SEPARATOR = '=';
+
+    public static function parse($value): array
+    {
+        if (is_array($value)) {
+            return $value;
+        }
+        $result = [];
+
+        if (null === $value || trim($value) === '') {
+            return $result;
+        }
+
+        foreach (explode(self::VARIABLE_SEPARATOR, $value) as $pair) {
+            self::validateKeyValuePair($pair);
+
+            [$key, $value] = explode(self::KEY_VALUE_SEPARATOR, $pair, 2);
+            $result[trim($key)] = trim($value);
+        }
+
+        return $result;
+    }
+
+    private static function validateKeyValuePair(string $pair)
+    {
+        if (strpos($pair, self::KEY_VALUE_SEPARATOR) === false) {
+            throw new InvalidArgumentException(sprintf(
+                'Key-Value pair "%s" does not contain separator "%s"',
+                $pair,
+                self::KEY_VALUE_SEPARATOR
+            ));
+        }
+    }
+}