1 files changed, 69 insertions, 0 deletions
diff --git a/library/Director/Data/Json.php b/library/Director/Data/Json.php
new file mode 100644
index 0000000..78b3e67
--- /dev/null
+++ b/library/Director/Data/Json.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Icinga\Module\Director\Data;
+
+use Icinga\Module\Director\Exception\JsonEncodeException;
+use function json_decode;
+use function json_encode;
+use function json_last_error;
+
+class Json
+{
+    const DEFAULT_FLAGS = JSON_PRESERVE_ZERO_FRACTION | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE;
+
+    /**
+     * Encode with well-known flags, as we require the result to be reproducible
+     *
+     * @param $mixed
+     * @param int|null $flags
+     * @return string
+     * @throws JsonEncodeException
+     */
+    public static function encode($mixed, $flags = null)
+    {
+        if ($flags === null) {
+            $flags = self::DEFAULT_FLAGS;
+        } else {
+            $flags = self::DEFAULT_FLAGS | $flags;
+        }
+        $result = json_encode($mixed, $flags);
+
+        if ($result === false && json_last_error() !== JSON_ERROR_NONE) {
+            throw JsonEncodeException::forLastJsonError();
+        }
+
+        return $result;
+    }
+
+    /**
+     * Decode the given JSON string and make sure we get a meaningful Exception
+     *
+     * @param string $string
+     * @return mixed
+     * @throws JsonEncodeException
+     */
+    public static function decode($string)
+    {
+        $result = json_decode($string);
+
+        if ($result === null && json_last_error() !== JSON_ERROR_NONE) {
+            throw JsonEncodeException::forLastJsonError();
+        }
+
+        return $result;
+    }
+
+    /**
+     * @param $string
+     * @return ?string
+     * @throws JsonEncodeException
+     */
+    public static function decodeOptional($string)
+    {
+        if ($string === null) {
+            return null;
+        }
+
+        return static::decode($string);
+    }
+}