Initial Upload

lib/Listener/ListenerLoggerTrait.php

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+<?php
+/**
+ * Copyright (C) 2021 Xibo Signage Ltd
+ *
+ * Xibo - Digital Signage - http://www.xibo.org.uk
+ *
+ * This file is part of Xibo.
+ *
+ * Xibo is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * Xibo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Xibo.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Xibo\Listener;
+
+use Psr\Log\NullLogger;
+
+trait ListenerLoggerTrait
+{
+    /** @var \Psr\Log\LoggerInterface */
+    private $logger;
+
+    /**
+     * @param \Psr\Log\LoggerInterface $logger
+     * @return $this
+     */
+    public function useLogger($logger)
+    {
+        $this->logger = $logger;
+        return $this;
+    }
+
+    /**
+     * @return \Psr\Log\LoggerInterface
+     */
+    protected function getLogger()
+    {
+        if ($this->logger === null) {
+            $this->logger = new NullLogger();
+        }
+
+        return $this->logger;
+    }
+}