laravel application 容器app
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vendor/laravel/framework/src/Illuminate/Foundation/Application.php
Application是laravel的核心容器,几乎处理所有东西的时候都需要用到,主要功能有:
1. app首先继承了container,作为一个容器类存在
2。注册了laravel运行过程的需要的基础类进容器,并且生成了运行需要的实例。承担了初始化功能。
这里需要额外说一下,app里面说的所谓注册,不是指绑定,应该是直接直接实例化了,并注入到容器。但是,针对provider,实例化了provider,并运行了,并不会生成实际的类,而是将类绑定。
3. 额外提供了更方便的一些功能,主要是与程序的环境相关的,比如:provider处理运行是在这里,config app里面的配置就在本类读取并处理。
具体功能如下:
1. container的功能就不说了,前面微博已经描述这个了。
2. 注册程序运行中需要的最基础的类
在 __construct:构造函数中处理:
if ($basePath) {
$this->setBasePath($basePath);
}
$this->registerBaseBindings();
$this->registerBaseServiceProviders();
$this->registerCoreContainerAliases();
setBasePath 基本路径添加进容器实例,这也是这绝大多数框架里面都需要做都事情,防止出现相对绝对等各种路径使用时候的混乱,总共添加了这么多:
$this->instance(\'path\', $this->path());
$this->instance(\'path.base\', $this->basePath());
$this->instance(\'path.lang\', $this->langPath());
$this->instance(\'path.config\', $this->configPath());
$this->instance(\'path.public\', $this->publicPath());
$this->instance(\'path.storage\', $this->storagePath());
$this->instance(\'path.database\', $this->databasePath());
$this->instance(\'path.resources\', $this->resourcePath());
$this->instance(\'path.bootstrap\', $this->bootstrapPath());
registerBaseBindings
注册基本绑定,添加app本身进容器实例,然后,PackageManifest添加进容器实例,本功能可以处理一些默认的provider和aliases,本功能后续展开描述。
registerBaseServiceProviders
注册基本的Providers,包括event/log/router 这三部分
event:vendor/laravel/framework/src/Illuminate/Events/EventServiceProvider.php
log:vendor/laravel/framework/src/Illuminate/Log/LogServiceProvider.php
router:vendor/laravel/framework/src/Illuminate/Routing/RoutingServiceProvider.php
router的provider跟别的不一样,提供了多个相关绑定:router url redirect Psr\\Http\\Message\\ServerRequestInterface Psr\\Http\\Message\\ResponseInterface Illuminate\\Contracts\\Routing\\ResponseFactory Illuminate\\Routing\\Contracts\\ControllerDispatcher
registerCoreContainerAliases 注册一些核心的别名,包括:
\'app\' => [\\Illuminate\\Foundation\\Application::class, \\Illuminate\\Contracts\\Container\\Container::class, \\Illuminate\\Contracts\\Foundation\\Application::class, \\Psr\\Container\\ContainerInterface::class],
\'auth\' => [\\Illuminate\\Auth\\AuthManager::class, \\Illuminate\\Contracts\\Auth\\Factory::class],
\'auth.driver\' => [\\Illuminate\\Contracts\\Auth\\Guard::class],
\'blade.compiler\' => [\\Illuminate\\View\\Compilers\\BladeCompiler::class],
\'cache\' => [\\Illuminate\\Cache\\CacheManager::class, \\Illuminate\\Contracts\\Cache\\Factory::class],
\'cache.store\' => [\\Illuminate\\Cache\\Repository::class, \\Illuminate\\Contracts\\Cache\\Repository::class],
\'config\' => [\\Illuminate\\Config\\Repository::class, \\Illuminate\\Contracts\\Config\\Repository::class],
\'cookie\' => [\\Illuminate\\Cookie\\CookieJar::class, \\Illuminate\\Contracts\\Cookie\\Factory::class, \\Illuminate\\Contracts\\Cookie\\QueueingFactory::class],
\'encrypter\' => [\\Illuminate\\Encryption\\Encrypter::class, \\Illuminate\\Contracts\\Encryption\\Encrypter::class],
\'db\' => [\\Illuminate\\Database\\DatabaseManager::class],
\'db.connection\' => [\\Illuminate\\Database\\Connection::class, \\Illuminate\\Database\\ConnectionInterface::class],
\'events\' => [\\Illuminate\\Events\\Dispatcher::class, \\Illuminate\\Contracts\\Events\\Dispatcher::class],
\'files\' => [\\Illuminate\\Filesystem\\Filesystem::class],
\'filesystem\' => [\\Illuminate\\Filesystem\\FilesystemManager::class, \\Illuminate\\Contracts\\Filesystem\\Factory::class],
\'filesystem.disk\' => [\\Illuminate\\Contracts\\Filesystem\\Filesystem::class],
\'filesystem.cloud\' => [\\Illuminate\\Contracts\\Filesystem\\Cloud::class],
\'hash\' => [\\Illuminate\\Contracts\\Hashing\\Hasher::class],
\'translator\' => [\\Illuminate\\Translation\\Translator::class, \\Illuminate\\Contracts\\Translation\\Translator::class],
\'log\' => [\\Illuminate\\Log\\Writer::class, \\Illuminate\\Contracts\\Logging\\Log::class, \\Psr\\Log\\LoggerInterface::class],
\'mailer\' => [\\Illuminate\\Mail\\Mailer::class, \\Illuminate\\Contracts\\Mail\\Mailer::class, \\Illuminate\\Contracts\\Mail\\MailQueue::class],
\'auth.password\' => [\\Illuminate\\Auth\\Passwords\\PasswordBrokerManager::class, \\Illuminate\\Contracts\\Auth\\PasswordBrokerFactory::class],
\'auth.password.broker\' => [\\Illuminate\\Auth\\Passwords\\PasswordBroker::class, \\Illuminate\\Contracts\\Auth\\PasswordBroker::class],
\'queue\' => [\\Illuminate\\Queue\\QueueManager::class, \\Illuminate\\Contracts\\Queue\\Factory::class, \\Illuminate\\Contracts\\Queue\\Monitor::class],
\'queue.connection\' => [\\Illuminate\\Contracts\\Queue\\Queue::class],
\'queue.failer\' => [\\Illuminate\\Queue\\Failed\\FailedJobProviderInterface::class],
\'redirect\' => [\\Illuminate\\Routing\\Redirector::class],
\'redis\' => [\\Illuminate\\Redis\\RedisManager::class, \\Illuminate\\Contracts\\Redis\\Factory::class],
\'request\' => [\\Illuminate\\Http\\Request::class, \\Symfony\\Component\\HttpFoundation\\Request::class],
\'router\' => [\\Illuminate\\Routing\\Router::class, \\Illuminate\\Contracts\\Routing\\Registrar::class, \\Illuminate\\Contracts\\Routing\\BindingRegistrar::class],
\'session\' => [\\Illuminate\\Session\\SessionManager::class],
\'session.store\' => [\\Illuminate\\Session\\Store::class, \\Illuminate\\Contracts\\Session\\Session::class],
\'url\' => [\\Illuminate\\Routing\\UrlGenerator::class, \\Illuminate\\Contracts\\Routing\\UrlGenerator::class],
\'validator\' => [\\Illuminate\\Validation\\Factory::class, \\Illuminate\\Contracts\\Validation\\Factory::class],
\'view\' => [\\Illuminate\\View\\Factory::class, \\Illuminate\\Contracts\\View\\Factory::class],
所以,初始化之后的app里面的内容如下:
bindings 里面有如下内容:
events
log
router
url
redirect
Psr\\Http\\Message\\ServerRequestInterface
Psr\\Http\\Message\\ResponseInterface
Illuminate\\Contracts\\Routing\\ResponseFactory
Illuminate\\Routing\\Contracts\\ControllerDispatcher
总结一下,application初始化的时候,就干了这么几个事情:
1. 定位自己,确定文件运行的相关目录
2. 把自己扔进容器,把用来引用其他代码的package类实例化进容器。
3. log/event/router 三大基本功能提高provider
4. 绑定别名,当然,许多别名,这这个时候,实际上是无效的。因为根本没绑定到实际类,估计是为了占空。
在container之外扩展的功能:
1. 启动时额外提供的初始化功能,并且添加了相关事件的注册,主要函数bootstrapWith。
添加事件 bootstrapping bootstrapped 并且注册外面类提供的所有初始化功能。准备程序运行的参数和环境的注入。
2. registerConfiguredProviders 函数,读取app.providers里面定义的provider,并注册。
3. provider的处理,主要函数,register(注册provider),boot等。
4. 延迟加载deferredServices,延迟加载的provider,只是注册进container,但是,并不实例化provider,只有调用相关类的时候,才会运行provider进行注册。
5.handle 直接调用kernel处理request,也是针对网络访问的一个出口函数。
app在container之外,添加了provider的概念,添加了request相关处理的概念,将container包装成了一个处理网络请求的新container。
instances里面有如下内容:
path::/Users/yuxuezhong/git/webservice/api/app
path.base::/Users/yuxuezhong/git/webservice/api
path.lang::/Users/yuxuezhong/git/webservice/api/resources/lang
path.config::/Users/yuxuezhong/git/webservice/api/config
path.public::/Users/yuxuezhong/git/webservice/api/public
path.storage::/Users/yuxuezhong/git/webservice/api/storage
path.database::/Users/yuxuezhong/git/webservice/api/database
path.resources::/Users/yuxuezhong/git/webservice/api/resources
path.bootstrap::/Users/yuxuezhong/git/webservice/api/bootstrap
app::Illuminate\\Foundation\\Application
Illuminate\\Container\\Container::Illuminate\\Foundation\\Application
Illuminate\\Foundation\\PackageManifest::Illuminate\\Foundation\\PackageManifest
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