Initial commit: apps.prometeysev.ru

vendor/aura/intl/src/FormatterLocator.php

@@ -0,0 +1,98 @@
+<?php
+/**
+ *
+ * This file is part of the Aura Project for PHP.
+ *
+ * @package Aura.Intl
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ */
+namespace Aura\Intl;
+
+/**
+ *
+ * A ServiceLocator implementation for loading and retaining formatter objects.
+ *
+ * @package Aura.Intl
+ *
+ */
+class FormatterLocator
+{
+    /**
+     *
+     * A registry to retain formatter objects.
+     *
+     * @var array
+     *
+     */
+    protected $registry;
+
+    /**
+     *
+     * Tracks whether or not a registry entry has been converted from a
+     * callable to a formatter object.
+     *
+     * @var array
+     *
+     */
+    protected $converted = [];
+
+    /**
+     *
+     * Constructor.
+     *
+     * @param array $registry An array of key-value pairs where the key is the
+     * formatter name the value is a callable that returns a formatter object.
+     *
+     */
+    public function __construct(array $registry = [])
+    {
+        foreach ($registry as $name => $spec) {
+            $this->set($name, $spec);
+        }
+    }
+
+    /**
+     *
+     * Sets a formatter into the registry by name.
+     *
+     * @param string $name The formatter name.
+     *
+     * @param callable $spec A callable that returns a formatter object.
+     *
+     * @return void
+     *
+     */
+    public function set($name, $spec)
+    {
+        $this->registry[$name] = $spec;
+        $this->converted[$name] = false;
+    }
+
+    /**
+     *
+     * Gets a formatter from the registry by name.
+     *
+     * @param string $name The formatter to retrieve.
+     *
+     * @return FormatterInterface A formatter object.
+     * 
+     * @throws Exception\FormatterNotMapped
+     *
+     */
+    public function get($name)
+    {
+        if (! isset($this->registry[$name])) {
+            throw new Exception\FormatterNotMapped($name);
+        }
+
+        if (! $this->converted[$name]) {
+            $func = $this->registry[$name];
+            $this->registry[$name] = $func();
+            $this->converted[$name] = true;
+        }
+
+        return $this->registry[$name];
+    }
+}