【Laravel5源码阅读】门面类Facades

config/app.php

'aliases' => [
        // 门面类
        // App应用
        'App' => Illuminate\Support\Facades\App::class,
        // Artisan 命令
        'Artisan' => Illuminate\Support\Facades\Artisan::class,
        // 权限
        'Auth' => Illuminate\Support\Facades\Auth::class,
        // Blade模板
        'Blade' => Illuminate\Support\Facades\Blade::class,
        // 缓存
        'Cache' => Illuminate\Support\Facades\Cache::class,
        // 配置
        'Config' => Illuminate\Support\Facades\Config::class,
        // Cookie
        'Cookie' => Illuminate\Support\Facades\Cookie::class,
        // Crypt加密
        'Crypt' => Illuminate\Support\Facades\Crypt::class,
        // 数据库
        'DB' => Illuminate\Support\Facades\DB::class,
        // 事件
        'Event' => Illuminate\Support\Facades\Event::class,
        // 文件
        'File' => Illuminate\Support\Facades\File::class,
        // Gate授权
        'Gate' => Illuminate\Support\Facades\Gate::class,
        // Hash加密
        'Hash' => Illuminate\Support\Facades\Hash::class,
        // 语言
        'Lang' => Illuminate\Support\Facades\Lang::class,
        // 日志
        'Log' => Illuminate\Support\Facades\Log::class,
        // 邮件
        'Mail' => Illuminate\Support\Facades\Mail::class,
        // 密码
        'Password' => Illuminate\Support\Facades\Password::class,
        // 队列
        'Queue' => Illuminate\Support\Facades\Queue::class,
        // 跳转
        'Redirect' => Illuminate\Support\Facades\Redirect::class,
        // Redis
        'Redis' => Illuminate\Support\Facades\Redis::class,
        // 请求
        'Request' => Illuminate\Support\Facades\Request::class,
        // 响应
        'Response' => Illuminate\Support\Facades\Response::class,
        // 路由
        'Route' => Illuminate\Support\Facades\Route::class,
        // 数据表Schema
        'Schema' => Illuminate\Support\Facades\Schema::class,
        // Session
        'Session' => Illuminate\Support\Facades\Session::class,
        // 存储
        'Storage' => Illuminate\Support\Facades\Storage::class,
        // URL
        'URL' => Illuminate\Support\Facades\URL::class,
        // 验证器
        'Validator' => Illuminate\Support\Facades\Validator::class,
        // 视图
        'View' => Illuminate\Support\Facades\View::class,
    ],

App.php 

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Foundation\Application
 */
class App extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'app';
    }
}

Artisan.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Contracts\Console\Kernel
 */
class Artisan extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组建的注册名称
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'Illuminate\Contracts\Console\Kernel';
    }
}

Auth.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Auth\AuthManager
 * @see \Illuminate\Contracts\Auth\Factory
 * @see \Illuminate\Contracts\Auth\Guard
 * @see \Illuminate\Contracts\Auth\StatefulGuard
 */
class Auth extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'auth';
    }
}

Blade.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\View\Compilers\BladeCompiler
 */
class Blade extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return static::$app['view']->getEngineResolver()->resolve('blade')->getCompiler();
    }
}

Cache.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Cache\CacheManager
 * @see \Illuminate\Cache\Repository
 */
class Cache extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'cache';
    }
}

Config.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Config\Repository
 */
class Config extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'config';
    }
}

Cookie.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Cookie\CookieJar
 */
class Cookie extends Facade
{
    /**
     * Determine if a cookie exists on the request.
     * 确定请求中是否存在 cookie。
     * @param  string  $key
     * @return bool
     */
    public static function has($key)
    {
        return ! is_null(static::$app['request']->cookie($key, null));
    }

    /**
     * Retrieve a cookie from the request.
     * 从请求中获取cookie。
     * @param  string  $key
     * @param  mixed   $default
     * @return string
     */
    public static function get($key = null, $default = null)
    {
        return static::$app['request']->cookie($key, $default);
    }

    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'cookie';
    }
}

Crypt.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Encryption\Encrypter
 */
class Crypt extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'encrypter';
    }
}

DB.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Database\DatabaseManager
 * @see \Illuminate\Database\Connection
 */
class DB extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'db';
    }
}

Event.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Events\Dispatcher
 */
class Event extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'events';
    }
}

File.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Filesystem\Filesystem
 */
class File extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'files';
    }
}

Gate.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Contracts\Auth\Access\Gate
 */
class Gate extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'Illuminate\Contracts\Auth\Access\Gate';
    }
}

Hash.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Hashing\BcryptHasher
 */
class Hash extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'hash';
    }
}

Lang.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Translation\Translator
 */
class Lang extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'translator';
    }
}

Log.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Log\Writer
 */
class Log extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'log';
    }
}

Mail.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Mail\Mailer
 */
class Mail extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'mailer';
    }
}

Password.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Auth\Passwords\PasswordBroker
 */
class Password extends Facade
{
    /**
     * Constant representing a successfully sent reminder.
     * 代表成功发送提醒的常量。
     * @var string
     */
    const RESET_LINK_SENT = 'passwords.sent';

    /**
     * Constant representing a successfully reset password.
     * 代表成功重置密码的常量。
     * @var string
     */
    const PASSWORD_RESET = 'passwords.reset';

    /**
     * Constant representing the user not found response.
     * 代表用户未找到响应的常量。
     * @var string
     */
    const INVALID_USER = 'passwords.user';

    /**
     * Constant representing an invalid password.
     * 代表无效密码的常量。
     * @var string
     */
    const INVALID_PASSWORD = 'passwords.password';

    /**
     * Constant representing an invalid token.
     * 代表无效令牌的常量。
     * @var string
     */
    const INVALID_TOKEN = 'passwords.token';

    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'auth.password';
    }
}

Queue.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Queue\QueueManager
 * @see \Illuminate\Queue\Queue
 */
class Queue extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'queue';
    }
}

Redirect.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Routing\Redirector
 */
class Redirect extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'redirect';
    }
}

Redis.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Redis\Database
 */
class Redis extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'redis';
    }
}

Request.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Http\Request
 */
class Request extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'request';
    }
}

Response.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Contracts\Routing\ResponseFactory
 */
class Response extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'Illuminate\Contracts\Routing\ResponseFactory';
    }
}

Route.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Routing\Router
 */
class Route extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'router';
    }
}

Schema.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Database\Schema\Builder
 */
class Schema extends Facade
{
    /**
     * Get a schema builder instance for a connection.
     * 获取连接的架构构建器实例。
     * @param  string  $name
     * @return \Illuminate\Database\Schema\Builder
     */
    public static function connection($name)
    {
        return static::$app['db']->connection($name)->getSchemaBuilder();
    }

    /**
     * Get a schema builder instance for the default connection.
     * 获取默认连接的架构构建器实例。
     * @return \Illuminate\Database\Schema\Builder
     */
    protected static function getFacadeAccessor()
    {
        return static::$app['db']->connection()->getSchemaBuilder();
    }
}

Session.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Session\SessionManager
 * @see \Illuminate\Session\Store
 */
class Session extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'session';
    }
}

Storage.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Filesystem\FilesystemManager
 */
class Storage extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'filesystem';
    }
}

Url.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Routing\UrlGenerator
 */
class URL extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'url';
    }
}

Validator.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\Validation\Factory
 */
class Validator extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'validator';
    }
}

View.php

<?php

namespace Illuminate\Support\Facades;

/**
 * @see \Illuminate\View\Factory
 */
class View extends Facade
{
    /**
     * Get the registered name of the component.
     * 获取组件的注册名称。
     * @return string
     */
    protected static function getFacadeAccessor()
    {
        return 'view';
    }
}