Actualización

vendor/ddeboer/data-import/src/Writer/BatchWriter.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Ddeboer\DataImport\Writer;
+
+use Ddeboer\DataImport\Writer;
+
+/**
+ * @author Markus Bachmann <markus.bachmann@bachi.biz>
+ */
+class BatchWriter implements Writer
+{
+    private $delegate;
+
+    private $size;
+
+    private $queue;
+
+    public function __construct(Writer $delegate, $size = 20)
+    {
+        $this->delegate = $delegate;
+        $this->size = $size;
+    }
+
+    public function prepare()
+    {
+        $this->delegate->prepare();
+
+        $this->queue = new \SplQueue();
+        $this->queue->setIteratorMode(\SplDoublyLinkedList::IT_MODE_DELETE);
+    }
+
+    public function writeItem(array $item)
+    {
+        $this->queue->push($item);
+
+        if (count($this->queue) >= $this->size) {
+            $this->flush();
+        }
+    }
+
+    public function finish()
+    {
+        $this->flush();
+
+        $this->delegate->finish();
+    }
+
+    private function flush()
+    {
+        foreach ($this->queue as $item) {
+            $this->delegate->writeItem($item);
+        }
+
+        if ($this->delegate instanceof FlushableWriter) {
+            $this->delegate->flush();
+        }
+    }
+}