define index drivers config

example/config.json

@@ -7,6 +7,8 @@
         "username":"",
         "password":""
     },
+    "index":
+    {
         "manticore":
         {
             "name":"kvazar",
@@ -20,5 +22,7 @@
                 "min_word_len":3,
                 "min_prefix_len":3
             }
+        },
+        "driver":"manticore"
     }
 }

src/index.php

@@ -12,9 +12,6 @@ if (false === sem_acquire($semaphore, true))
     );
 }
 
-// Load dependencies
-require_once __DIR__ . '/../vendor/autoload.php';
-
 // Init config
 if (!file_exists(__DIR__ . '/../config.json'))
 {
@@ -29,25 +26,41 @@ $config = json_decode(
     )
 );
 
+// Load dependencies
+require_once __DIR__ . '/../vendor/autoload.php';
+
 // Init index
-try
+switch ($config->index->driver)
 {
+    case 'manticore':
+
+        try
+        {
             $index = new \Kvazar\Index\Manticore(
-        (string) $config->manticore->name,
-        (array)  $config->manticore->meta,
-        (string) $config->manticore->host,
-        (int)    $config->manticore->port
+                (string) $config->index->manticore->name,
+                (array)  $config->index->manticore->meta,
+                (string) $config->index->manticore->host,
+                (int)    $config->index->manticore->port
             );
-}
+        }
 
-catch (Exception $exception)
-{
+        catch (Exception $exception)
+        {
             exit(
                 print_r(
                     $exception,
                     true
                 )
             );
+        }
+
+    break;
+
+    default:
+
+        exit(
+            _('Undefined index driver!')
+        );
 }
 
 // Init kevacoin