Use function getConcordanceTarget() over direct array access

src/MDConcTime.php

@@ -9,9 +9,9 @@ declare(strict_types = 1);
 /**
  * Provides a list for finding the respective event type for a given time role.
  */
-final class MDConcTime {
+final class MDConcTime implements MDImporterConcordanceListInterface {
 
-    const TIME_ROLES_TO_EVENT_TYPE = [
+    private const TIME_ROLES_TO_EVENT_TYPE = [
 
         # General / not yet (?) categorized
         "Laufzeit" => 24,
@@ -40,4 +40,20 @@ final class MDConcTime {
 
     ];
 
+    /**
+     * Require a function for getting the concordance target.
+     *
+     * @param string $input Input string.
+     *
+     * @return integer
+     */
+    public static function getConcordanceTarget(string $input):int {
+
+        if (!isset(self::TIME_ROLES_TO_EVENT_TYPE[$input])) {
+            throw new MDImporterMissingConcordance("Unknown time type: " . $input);
+        }
+
+        return self::TIME_ROLES_TO_EVENT_TYPE[$input];
+
+    }
 }