From de6e5fb884318288693f8c4821fda6942fdd50a6 Mon Sep 17 00:00:00 2001
From: "Dr. Kibitz" <info@drkibitz.com>
Date: Sat, 20 Jul 2013 13:22:43 -0700
Subject: [PATCH] Added MetadataCacheInclude

---
 src/Tonic/MetadataCacheInclude.php | 57 ++++++++++++++++++++++++++++++
 web/dispatch.php                   |  1 +
 2 files changed, 58 insertions(+)
 create mode 100644 src/Tonic/MetadataCacheInclude.php

diff --git a/src/Tonic/MetadataCacheInclude.php b/src/Tonic/MetadataCacheInclude.php
new file mode 100644
index 0000000..7e7f4a8
--- /dev/null
+++ b/src/Tonic/MetadataCacheInclude.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Tonic;
+
+/**
+ * Cache resource metadata between invocations
+ *
+ * This class exports the resource metadata and writes it to disk for including in a later request.
+ */
+class MetadataCacheInclude implements MetadataCache
+{
+    private $filename;
+
+    public function __construct($filename)
+    {
+        $this->filename = $filename;
+    }
+
+    /**
+     * Is there already cache file
+     * @return boolean
+     */
+    public function isCached()
+    {
+        return is_readable($this->filename);
+    }
+
+    /**
+     * Load the resource metadata
+     * @return str[]
+     */
+    public function load()
+    {
+	    return include $this->filename;
+    }
+
+    /**
+     * Save resource metadata to disk
+     * @param  str[]   $resources Resource metadata
+     * @return boolean
+     */
+    public function save($resources)
+    {
+		return file_put_contents($this->filename, '<?php return ' . var_export($resources, true) . ';');
+    }
+
+    public function clear()
+    {
+        @unlink($this->filename);
+    }
+
+    public function __toString()
+    {
+        return 'Metadata for '.count($this->load()).' resources stored in file "'.$this->filename.'" at '.date('r', filemtime($this->filename));
+    }
+
+}
diff --git a/web/dispatch.php b/web/dispatch.php
index f39c858..ead40d5 100644
--- a/web/dispatch.php
+++ b/web/dispatch.php
@@ -15,6 +15,7 @@
     #'mount' => array('Tyrell' => '/nexus'), // mount in example resources at URL /nexus
     #'cache' => new Tonic\MetadataCacheFile('/tmp/tonic.cache') // use the metadata cache
     #'cache' => new Tonic\MetadataCacheAPC // use the metadata cache
+    #'cache' => new Tonic\MetadataCacheInclude('/tmp/tonic-cache.php') // use the metadata cache
 );
 
 $app = new Tonic\Application($config);