Version 0.3

src/FFMpeg/FFProbe/DataMapping/AbstractData.php

@@ -0,0 +1,80 @@
+<?php
+
+/*
+ * This file is part of PHP-FFmpeg.
+ *
+ * (c) Alchemy <info@alchemy.fr>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FFMpeg\FFProbe\DataMapping;
+
+use FFMpeg\Exception\InvalidArgumentException;
+
+abstract class AbstractData implements \Countable
+{
+    private $properties;
+
+    public function __construct(array $properties)
+    {
+        $this->properties = $properties;
+    }
+
+    /**
+     * Returns true if data has property
+     *
+     * @param  string  $property
+     * @return Boolean
+     */
+    public function has($property)
+    {
+        return isset($this->properties[$property]);
+    }
+
+    /**
+     * Returns the property value given its name
+     *
+     * @param  string $property
+     * @return mixed
+     *
+     * @throws InvalidArgumentException In case the data does not have the property
+     */
+    public function get($property)
+    {
+        if (!isset($this->properties[$property])) {
+            throw new InvalidArgumentException(sprintf('Invalid property `%s`.', $property));
+        }
+
+        return $this->properties[$property];
+    }
+
+    /**
+     * Returns all property names
+     *
+     * @return array
+     */
+    public function keys()
+    {
+        return array_keys($this->properties);
+    }
+
+    /**
+     * Returns all properties and their values
+     *
+     * @return array
+     */
+    public function all()
+    {
+        return $this->properties;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function count()
+    {
+        return count($this->properties);
+    }
+}