Add cache for actors

src/config.php

@@ -9,6 +9,7 @@
 use Dapr\Actors\Generators\ExistingOnly;
 use Dapr\Actors\Generators\FileGenerator;
 use Dapr\Actors\Generators\ProxyFactory;
+use Dapr\Actors\Internal\Caches\FileCache;
 use Dapr\App;
 use Dapr\DaprClient;
 use Dapr\Deserialization\DeserializationConfig;
@@ -130,6 +131,7 @@
  'dapr.actors.scan_interval' => null,
  'dapr.actors.drain_timeout' => null,
  'dapr.actors.drain_enabled' => null,
+ 'dapr.actors.cache' => FileCache::class,
  'dapr.http.middleware.request' => [get(Tracing::class)],
  'dapr.http.middleware.response' => [get(ApplicationJson::class), get(Tracing::class)],
  'dapr.port' => env('DAPR_HTTP_PORT', "3500"),

src/lib/Actors/ActorRuntime.php

@@ -2,14 +2,18 @@
 
 namespace Dapr\Actors;
 
+use Dapr\Actors\Internal\Caches\CacheInterface;
+use Dapr\Actors\Internal\Caches\NoCache;
 use Dapr\Deserialization\IDeserializer;
 use Dapr\exceptions\DaprException;
 use Dapr\exceptions\Http\NotFound;
 use Dapr\exceptions\SaveStateFailure;
+use DI\Container;
 use DI\DependencyException;
 use DI\FactoryInterface;
 use DI\NotFoundException;
 use Exception;
+use JetBrains\PhpStorm\ArrayShape;
 use Psr\Log\LoggerInterface;
 use ReflectionClass;
 use ReflectionException;
@@ -24,10 +28,14 @@
  */
 class ActorRuntime
 {
+ #[ArrayShape(['string' => ['string' => CacheInterface::class]])]
+ private array $caches = [];
+
  public function __construct(
  protected LoggerInterface $logger,
  protected ActorConfig $actor_config,
- protected FactoryInterface $container,
+ protected FactoryInterface $factory,
+ protected Container $container,
  protected IDeserializer $deserializer,
  ) {
  }
@@ -64,6 +72,12 @@ public function do_method(IActor $actor, string $method, mixed $arg): mixed
  public function deactivate_actor(IActor $actor, string $dapr_type): void
  {
  $id = $actor->get_id();
+ /**
+ * @var $cache CacheInterface
+ */
+ foreach ($this->caches[$dapr_type.$id] as $cache) {
+ $cache->reset();
+ }
 
  $activation_tracker = hash('sha256', $dapr_type.$id);
  $activation_tracker = rtrim(
@@ -110,6 +124,7 @@ public function resolve_actor(string $dapr_type, string $id, callable $loan): mi
  } catch (DependencyException | DaprException | NotFoundException $e) {
  throw new SaveStateFailure('Failed to commit actor state', previous: $e);
  }
+
  // @codeCoverageIgnoreEnd
 
  return $result;
@@ -179,6 +194,7 @@ protected function get_states(ReflectionClass $reflection, string $dapr_type, st
  if (class_exists($type_name)) {
  $reflected_type = new ReflectionClass($type_name);
  if ($reflected_type->isSubclassOf(ActorState::class)) {
+ $this->setup_cache($dapr_type, $id, $type_name);
  $state = $this->container->make($type_name);
  $this->begin_transaction($state, $reflected_type, $dapr_type, $id);
 
@@ -188,10 +204,29 @@ protected function get_states(ReflectionClass $reflection, string $dapr_type, st
  }
  }
  }
+ $this->teardown_cache();
 
  return $states;
  }
 
+ /**
+ * @param string $dapr_type
+ * @param string $id
+ * @param string $state_type
+ */
+ private function setup_cache(string $dapr_type, string $id, string $state_type)
+ {
+ try {
+ $cache_type = $this->container->get('dapr.actors.cache');
+ } catch (DependencyException | NotFoundException) {
+ $this->logger->warning('No cache type found, turning off actor state cache. Set `dapr.actors.cache`');
+ $cache_type = NoCache::class;
+ }
+ $cache_name = $dapr_type.$id;
+ $this->caches[$cache_name][$state_type] ??= new $cache_type($cache_name);
+ $this->container->set(CacheInterface::class, $this->caches[$cache_name][$state_type]);
+ }
+
  /**
  * Begins an actor transaction
  *
@@ -226,6 +261,11 @@ protected function begin_transaction(
  $begin_transaction->invoke($state, $dapr_type, $actor_id);
  }
 
+ private function teardown_cache()
+ {
+ $this->container->set(CacheInterface::class, null);
+ }
+
  /**
  * Instantiates an actor implementation
  *
@@ -241,7 +281,7 @@ protected function begin_transaction(
  protected function get_actor(ReflectionClass $reflection, string $dapr_type, string $id, array $states): IActor
  {
  $states['id'] = $id;
- $actor = $this->container->make($reflection->getName(), $states);
+ $actor = $this->factory->make($reflection->getName(), $states);
  $activation_tracker = hash('sha256', $dapr_type.$id);
  $activation_tracker = rtrim(
  sys_get_temp_dir(),
@@ -256,6 +296,12 @@ protected function get_actor(ReflectionClass $reflection, string $dapr_type, str
  ['type' => $dapr_type, 'id' => $id]
  );
  touch($activation_tracker);
+ /**
+ * @var $cache CacheInterface
+ */
+ foreach ($this->caches[$dapr_type.$id] as $cache) {
+ $cache->reset();
+ }
  $actor->on_activation();
  }