first commit

src/Search/Exception/BookNotFoundException.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace BSR\Search\Exception;
+
+/**
+ * This exception should be raised when trying to access or
+ * manipulate a non-existing book.
+ *
+ * @package BSR\Lib\Exception
+ */
+class BookNotFoundException extends WebException {
+    public function __construct($code) {
+        parent::__construct('BookNotFound', "The book with code $code was not found.", 404);
+    }
+}