Updated FileKey with setters

src/Key/FileKey.php

@@ -17,18 +17,8 @@ class FileKey implements KeyInterface
      */
     public function __construct(string $pathname, $proj="\0", bool $create = false)
     {
-        if (!file_exists($pathname)) {
+        $this->setPathname($pathname, $create);
-            if (!$create) {
+        $this->setProjectIdentifier($proj);
-                throw new \RuntimeException("Path does not exist: {$pathname}");
-            }
-            if (!is_dir(dirname($pathname))) {
-                throw new \RuntimeException("The directory ".dirname($pathname)." does not exist");
-            }
-            touch($pathname);
-        }
-
-        $this->pathname = $pathname;
-        $this->proj = substr($proj,0,1);
     }
 
     /**
@@ -41,6 +31,20 @@ class FileKey implements KeyInterface
         return $this->pathname;
     }
 
+    public function setPathname(string $pathname, bool $create = false)
+    {
+        if (!file_exists($pathname)) {
+            if (!$create) {
+                throw new \RuntimeException("Path does not exist: {$pathname}");
+            }
+            if (!is_dir(dirname($pathname))) {
+                throw new \RuntimeException("The directory ".dirname($pathname)." does not exist");
+            }
+            touch($pathname);
+        }
+        $this->pathname = $pathname;        
+    }
+
     /**
      * Get the project identifier. Not guaranteed to be printable
      *
@@ -51,6 +55,17 @@ class FileKey implements KeyInterface
         return $this->proj;
     }
 
+    /**
+     * Set the project identifier
+     *
+     * @param string $proj
+     * @return void
+     */
+    public function setProjectIdentifier(string $proj)
+    {
+        $this->proj = substr($proj, 0, 1);
+    }
+
     /**
      * Get the key value
      *