core: Implement action factory (#1002)

lib/FactoryAbstract.php

@@ -0,0 +1,70 @@
+<?php
+/**
+ * This file is part of RSS-Bridge, a PHP project capable of generating RSS and
+ * Atom feeds for websites that don't have one.
+ *
+ * For the full license information, please view the UNLICENSE file distributed
+ * with this source code.
+ *
+ * @package	Core
+ * @license	http://unlicense.org/ UNLICENSE
+ * @link	https://github.com/rss-bridge/rss-bridge
+ */
+
+/**
+ * Abstract class for factories.
+ */
+abstract class FactoryAbstract {
+
+	/**
+	 * Holds the working directory
+	 *
+	 * @var string
+	 */
+	private $workingDir = null;
+
+	/**
+	 * Set the working directory.
+	 *
+	 * @param string $dir The working directory.
+	 * @return void
+	 */
+	public function setWorkingDir($dir) {
+		$this->workingDir = null;
+
+		if(!is_string($dir)) {
+			throw new \InvalidArgumentException('Working directory must be a string!');
+		}
+
+		if(!file_exists($dir)) {
+			throw new \Exception('Working directory does not exist!');
+		}
+
+		if(!is_dir($dir)) {
+			throw new \InvalidArgumentException($dir . ' is not a directory!');
+		}
+
+		$this->workingDir = realpath($dir) . '/';
+	}
+
+	/**
+	 * Get the working directory
+	 *
+	 * @return string The working directory.
+	 */
+	public function getWorkingDir() {
+		if(is_null($this->workingDir)) {
+			throw new \LogicException('Working directory is not set!');
+		}
+
+		return $this->workingDir;
+	}
+
+	/**
+	 * Creates a new instance for the object specified by name.
+	 *
+	 * @param string $name The name of the object to create.
+	 * @return object The object instance
+	 */
+	abstract public function create($name);
+}