Merge pull request #80 from jaapio/feature/fileAdapter

extracted file interaction to adapter appraoch

src/phpDocumentor/Reflection/Php/Factory/File.php

@@ -15,6 +15,8 @@
 
 use InvalidArgumentException;
 use phpDocumentor\Reflection\Fqsen;
+use phpDocumentor\Reflection\Php\Factory\File\Adapter;
+use phpDocumentor\Reflection\Php\Factory\File\LocalAdapter;
 use phpDocumentor\Reflection\Php\File as FileElement;
 use phpDocumentor\Reflection\Php\NodesFactory;
 use phpDocumentor\Reflection\Php\ProjectFactoryStrategy;
@@ -41,12 +43,24 @@ final class File implements ProjectFactoryStrategy
     private $nodesFactory;
 
     /**
-     * Initializes the object
+     * @var Adapter
+     */
+    private $adapter;
+
+    /**
+     * Initializes the object.
+     *
      * @param NodesFactory $nodesFactory
+     * @param Adapter $adapter
      */
-    public function __construct(NodesFactory $nodesFactory)
+    public function __construct(NodesFactory $nodesFactory, Adapter $adapter = null)
     {
+        if($adapter === null) {
+            $adapter = new LocalAdapter();
+        }
+
         $this->nodesFactory = $nodesFactory;
+        $this->adapter = $adapter;
     }
 
     /**
@@ -57,7 +71,7 @@ public function __construct(NodesFactory $nodesFactory)
      */
     public function matches($filePath)
     {
-        return is_string($filePath) && file_exists($filePath);
+        return is_string($filePath) && $this->adapter->fileExists($filePath);
     }
 
     /**
@@ -80,11 +94,11 @@ public function create($object, StrategyContainer $strategies, Context $context
                 )
             );
         }
-        $code = file_get_contents($object);
+        $code = $this->adapter->getContents($object);
         $nodes = $this->nodesFactory->create($code);
         $docBlock = $this->createDocBlock($strategies, $code, $nodes);
 
-        $file = new FileElement(md5_file($object), $object, $code, $docBlock);
+        $file = new FileElement($this->adapter->md5($object), $this->adapter->path($object), $code, $docBlock);
 
         $this->createElements(new Fqsen('\\'), $nodes, $file, $strategies);
 

src/phpDocumentor/Reflection/Php/Factory/File/Adapter.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * phpDocumentor
+ *
+ * PHP Version 5.5
+ *
+ * @copyright 2010-2015 Mike van Riel / Naenius (http://www.naenius.com)
+ * @license   http://www.opensource.org/licenses/mit-license.php MIT
+ * @link      http://phpdoc.org
+ */
+
+namespace phpDocumentor\Reflection\Php\Factory\File;
+
+/**
+ * Interface for Adapters uses by the File strategy class to interact with the file system.
+ */
+interface Adapter
+{
+
+    /**
+     * Returns true when the file exists.
+     *
+     * @param string $filePath
+     * @return boolean
+     */
+    public function fileExists($filePath);
+
+    /**
+     * Returns the content of the file as a string.
+     *
+     * @param $filePath
+     * @return string
+     */
+    public function getContents($filePath);
+
+    /**
+     * Returns md5 hash of the file.
+     *
+     * @param $filePath
+     * @return string
+     */
+    public function md5($filePath);
+
+    /**
+     * Returns an relative path to the file.
+     *
+     * @param string $filePath
+     * @return string
+     */
+    public function path($filePath);
+}

src/phpDocumentor/Reflection/Php/Factory/File/LocalAdapter.php

@@ -0,0 +1,63 @@
+<?php
+/**
+ * phpDocumentor
+ *
+ * PHP Version 5.5
+ *
+ * @copyright 2010-2015 Mike van Riel / Naenius (http://www.naenius.com)
+ * @license   http://www.opensource.org/licenses/mit-license.php MIT
+ * @link      http://phpdoc.org
+ */
+
+namespace phpDocumentor\Reflection\Php\Factory\File;
+
+/**
+ * Adapter to interact with local readable files.
+ */
+final class LocalAdapter implements Adapter
+{
+
+    /**
+     * Returns true when the file exists.
+     *
+     * @param string $filePath
+     * @return boolean
+     */
+    public function fileExists($filePath)
+    {
+        return file_exists($filePath);
+    }
+
+    /**
+     * Returns the content of the file as a string.
+     *
+     * @param $filePath
+     * @return string
+     */
+    public function getContents($filePath)
+    {
+        return file_get_contents($filePath);
+    }
+
+    /**
+     * Returns md5 hash of the file.
+     *
+     * @param $filePath
+     * @return string
+     */
+    public function md5($filePath)
+    {
+        return md5_file($filePath);
+    }
+
+    /**
+     * Returns an relative path to the file.
+     *
+     * @param string $filePath
+     * @return string
+     */
+    public function path($filePath)
+    {
+        return $filePath;
+    }
+}