Convert monolithic one-file-lib to a proper PSR-0 file tree

lib/Predis/Options/ClientKeyDistribution.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Predis\Options;
+
+class ClientKeyDistribution extends Option {
+    public function validate($value) {
+        if ($value instanceof \Predis\Distribution\IDistributionStrategy) {
+            return $value;
+        }
+        if (is_string($value)) {
+            $valueReflection = new \ReflectionClass($value);
+            if ($valueReflection->isSubclassOf('\Predis\Distribution\IDistributionStrategy')) {
+                return new $value;
+            }
+        }
+        throw new \InvalidArgumentException("Invalid value for key distribution");
+    }
+
+    public function getDefault() {
+        return new \Predis\Distribution\HashRing();
+    }
+}