1 files changed, 60 insertions, 0 deletions
diff --git a/Mustache/Cache/AbstractCache.php b/Mustache/Cache/AbstractCache.php
new file mode 100644
index 0000000..281038f
--- /dev/null
+++ b/Mustache/Cache/AbstractCache.php
@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2010-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Abstract Mustache Cache class.
+ *
+ * Provides logging support to child implementations.
+ *
+ * @abstract
+ */
+abstract class Mustache_Cache_AbstractCache implements Mustache_Cache
+{
+    private $logger = null;
+
+    /**
+     * Get the current logger instance.
+     *
+     * @return Mustache_Logger|Psr\Log\LoggerInterface
+     */
+    public function getLogger()
+    {
+        return $this->logger;
+    }
+
+    /**
+     * Set a logger instance.
+     *
+     * @param Mustache_Logger|Psr\Log\LoggerInterface $logger
+     */
+    public function setLogger($logger = null)
+    {
+        if ($logger !== null && !($logger instanceof Mustache_Logger || is_a($logger, 'Psr\\Log\\LoggerInterface'))) {
+            throw new Mustache_Exception_InvalidArgumentException('Expected an instance of Mustache_Logger or Psr\\Log\\LoggerInterface.');
+        }
+
+        $this->logger = $logger;
+    }
+
+    /**
+     * Add a log record if logging is enabled.
+     *
+     * @param string $level   The logging level
+     * @param string $message The log message
+     * @param array  $context The log context
+     */
+    protected function log($level, $message, array $context = array())
+    {
+        if (isset($this->logger)) {
+            $this->logger->log($level, $message, $context);
+        }
+    }
+}