Finished #1555 todo list

src/spl/AttachableThreadedLogger.php

@@ -0,0 +1,70 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+abstract class AttachableThreadedLogger extends \ThreadedLogger{
+
+	/** @var \ThreadedLoggerAttachment */
+	protected $attachment = null;
+
+	/**
+	 * @param ThreadedLoggerAttachment $attachment
+	 */
+	public function addAttachment(\ThreadedLoggerAttachment $attachment){
+		if($this->attachment instanceof \ThreadedLoggerAttachment){
+			$this->attachment->addAttachment($attachment);
+		}else{
+			$this->attachment = $attachment;
+		}
+	}
+
+	/**
+	 * @param ThreadedLoggerAttachment $attachment
+	 */
+	public function removeAttachment(\ThreadedLoggerAttachment $attachment){
+		if($this->attachment instanceof \ThreadedLoggerAttachment){
+			if($this->attachment === $attachment){
+				$this->attachment = null;
+				foreach($attachment->getAttachments() as $attachment){
+					$this->addAttachment($attachment);
+				}
+			}
+		}
+	}
+
+	public function removeAttachments(){
+		if($this->attachment instanceof \ThreadedLoggerAttachment){
+			$this->attachment->removeAttachments();
+			$this->attachment = null;
+		}
+	}
+
+	/**
+	 * @return \ThreadedLoggerAttachment[]
+	 */
+	public function getAttachments(){
+		$attachments = [];
+		if($this->attachment instanceof \ThreadedLoggerAttachment){
+			$attachments[] = $this->attachment;
+			$attachments += $this->attachment->getAttachments();
+		}
+		return $attachments;
+	}
+}