SS 4.0 - Upgrade Combinations array and Logging

code/utils/CombinationsArrayIterator.php

@@ -1,6 +1,9 @@
 <?php
+
 namespace SilverStripe\FullTextSearch\Utils;
+
 use Iterator;
+
 class CombinationsArrayIterator implements Iterator
 {
     protected $arrays;

code/utils/logging/MonologFactory.php

@@ -1,9 +1,13 @@
 <?php
+
 namespace SilverStripe\FullTextSearch\Utils\Logging;
+
 use Monolog\Formatter\FormatterInterface;
 use Monolog\Formatter\LineFormatter;
 use Monolog\Handler\HandlerInterface;
 use Monolog\Logger;
+use SilverStripe\Control\Director;
+use SilverStripe\Core\Injector\Injector;
 
 /**
  * Provides logging based on monolog
@@ -97,7 +101,7 @@ class MonologFactory implements SearchLogFactory
     protected function getJobHandler($job)
     {
         return Injector::inst()->createWithArgs(
-            'QueuedJobLogHandler',
+            'SilverStripe\FullTextSearch\Utils\Logging\QueuedJobLogHandler',
             array($job, Logger::INFO)
         );
     }

code/utils/logging/QueuedJobLogHandler.php

@@ -1,12 +1,16 @@
 <?php
+
 namespace SilverStripe\FullTextSearch\Utils\Logging;
+
 use Monolog\Handler\AbstractProcessingHandler;
 use Monolog\Logger;
 
-if (!interface_exists('QueuedJob')) {
+if (!interface_exists('SilverStripe\QueuedJobs\Services\QueuedJob')) {
     return;
 }
 
+use SilverStripe\QueuedJobs\Services\QueuedJob;
+
 /**
  * Handler for logging events into QueuedJob message data
  */

code/utils/logging/SearchLogFactory.php

@@ -1,5 +1,7 @@
 <?php
+
 namespace SilverStripe\FullTextSearch\Utils\Logging;
+
 use Psr\Log;
 
 interface SearchLogFactory