Add dumpContainer to container factory

[MAILPOET-1605]

.gitignore

@@ -24,6 +24,7 @@ lang
 /nbproject/
 tests/_data/acceptanceGenerated.sql
 lib/Dependencies
+lib/DI/CachedContainer.php
 mozart/Dependencies
 mozart/Classes
 mozart/vendor

lib/Config/Initializer.php

@@ -4,6 +4,7 @@ namespace MailPoet\Config;
 
 use MailPoet\API;
 use MailPoet\Cron\CronTrigger;
+use MailPoet\Dependencies\Symfony\Component\DependencyInjection\Container;
 use MailPoet\DI\ContainerFactory;
 use MailPoet\Models\Setting;
 use MailPoet\Router;
@@ -19,6 +20,7 @@ require_once(ABSPATH . 'wp-admin/includes/plugin.php');
 class Initializer {
   private $access_control;
   private $renderer;
+  /** @var Container */
   private $container;
 
   const INITIALIZED = 'MAILPOET_INITIALIZED';
@@ -52,7 +54,7 @@ class Initializer {
       ));
     }
 
-    $this->compileContainer();
+    $this->loadContainer();
 
     // activation function
     register_activation_hook(
@@ -94,9 +96,9 @@ class Initializer {
     ));
   }
 
-  function compileContainer() {
-    $this->container = ContainerFactory::getContainer();
-    $this->container->compile();
+  function loadContainer() {
+    $container_factory = new ContainerFactory(WP_DEBUG);
+    $this->container = $container_factory->getContainer();
   }
 
   function checkRequirements() {

lib/DI/ContainerFactory.php

@@ -2,31 +2,69 @@
 
 namespace MailPoet\DI;
 
-use MailPoet\Dependencies\Symfony\Component\Config\FileLocator;
 use MailPoet\Dependencies\Symfony\Component\DependencyInjection\ContainerBuilder;
-use MailPoet\Dependencies\Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
+use MailPoet\Dependencies\Symfony\Component\DependencyInjection\Dumper\PhpDumper;
 
 class ContainerFactory {
 
   /** @var ContainerBuilder */
-  private static $container;
+  private $container;
 
-  static function getContainer() {
-    if(!self::$container) {
-      self::createContainer();
-    }
-    return self::$container;
+  /** @var string */
+  private $dump_file = 'CachedContainer.php';
+
+  /** @var string */
+  private $dump_class = 'CachedContainer';
+
+  /** @var bool */
+  private $debug;
+
+  /**
+   * ContainerFactory constructor.
+   * @param bool $debug
+   */
+  public function __construct($debug = false) {
+    $this->debug = $debug;
   }
 
-  static function createContainer() {
-    self::$container = new ContainerBuilder();
-    self::$container->autowire(\MailPoet\Config\AccessControl::class);
-    self::$container->autowire(\MailPoet\Cron\Daemon::class);
-    self::$container->autowire(\MailPoet\Cron\DaemonHttpRunner::class);
-    self::$container->autowire(\MailPoet\Router\Endpoints\CronDaemon::class);
-    self::$container->autowire(\MailPoet\Router\Endpoints\Subscription::class);
-    self::$container->autowire(\MailPoet\Router\Endpoints\Track::class);
-    self::$container->autowire(\MailPoet\Router\Endpoints\ViewInBrowser::class);
-    return self::$container;
+  function getContainer() {
+    if($this->container) {
+      return $this->container;
+    }
+
+    $dump_file = __DIR__ . '/' . $this->dump_file;
+    if(!$this->debug && file_exists($dump_file)) {
+      require_once $dump_file;
+      $this->container = new $this->dump_class();
+    } else {
+      $this->container = $this->createContainer();
+      $this->container->compile();
+    }
+
+    return $this->container;
+  }
+
+  function createContainer() {
+    $container = new ContainerBuilder();
+    $container->autowire(\MailPoet\Config\AccessControl::class);
+    $container->autowire(\MailPoet\Cron\Daemon::class);
+    $container->autowire(\MailPoet\Cron\DaemonHttpRunner::class);
+    $container->autowire(\MailPoet\Router\Endpoints\CronDaemon::class);
+    $container->autowire(\MailPoet\Router\Endpoints\Subscription::class);
+    $container->autowire(\MailPoet\Router\Endpoints\Track::class);
+    $container->autowire(\MailPoet\Router\Endpoints\ViewInBrowser::class);
+    return $container;
+  }
+
+  function dumpContainer() {
+    $container = $this->createContainer();
+    $container->compile();
+    $dumper = new PhpDumper($container);
+    file_put_contents(
+      __DIR__ . '/' . $this->dump_file,
+      $dumper->dump([
+        'class' => $this->dump_class
+      ])
+    );
   }
 }

tests/integration/Router/RouterTest.php

@@ -26,7 +26,8 @@ class RouterTest extends \MailPoetTest {
       'data' => base64_encode(json_encode(array('data' => 'dummy data')))
     );
     $this->access_control = new AccessControl();
-    $this->container = ContainerFactory::createContainer();
+    $container_factory = new ContainerFactory(true);
+    $this->container = $container_factory->createContainer();
     $this->container->register(RouterTestMockEndpoint::class)->setPublic(true);
     $this->container->compile();
     $this->router = new Router($this->access_control, $this->container, $this->router_data);