v2: Updates

* Simplifies & beautifies everything
* Introduces a new Class system.
* Errors are defaulted to AWS's handler.
* New function names & more efficient handling.
* Should fix a majority of the errors.

Please read the README for more!

aws/Aws/Retry/Configuration.php

@@ -0,0 +1,61 @@
+<?php
+namespace Aws\Retry;
+
+use Aws\Retry\Exception\ConfigurationException;
+
+class Configuration implements ConfigurationInterface
+{
+    private $mode;
+    private $maxAttempts;
+    private $validModes = [
+        'legacy',
+        'standard',
+        'adaptive'
+    ];
+
+    public function __construct($mode = 'legacy', $maxAttempts = 3)
+    {
+        $mode = strtolower($mode);
+        if (!in_array($mode, $this->validModes)) {
+            throw new ConfigurationException("'{$mode}' is not a valid mode."
+                . " The mode has to be 'legacy', 'standard', or 'adaptive'.");
+        }
+        if (!is_numeric($maxAttempts)
+            || intval($maxAttempts) != $maxAttempts
+            || $maxAttempts < 1
+        ) {
+            throw new ConfigurationException("The 'maxAttempts' parameter has"
+                . " to be an integer >= 1.");
+        }
+
+        $this->mode = $mode;
+        $this->maxAttempts = intval($maxAttempts);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMode()
+    {
+        return $this->mode;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMaxAttempts()
+    {
+        return $this->maxAttempts;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function toArray()
+    {
+        return [
+            'mode' => $this->getMode(),
+            'max_attempts' => $this->getMaxAttempts(),
+        ];
+    }
+}