PHP code example of kode / aop

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

kode / aop example snippets

use Kode\Aop\Attribute\Aspect;
use Kode\Aop\Attribute\Before;
use Kode\Aop\Attribute\After;
use Kode\Aop\Attribute\Around;
use Kode\Aop\Runtime\JoinPoint;
use Kode\Aop\Runtime\ProceedingJoinPoint;

#[Aspect]
class LoggingAspect
{
    #[Before("execution(* App\Service\UserService->createUser(..))")]
    public function logBefore(JoinPoint $joinPoint): void
    {
        $args = $joinPoint->getArguments();
        echo "准备创建用户: " . json_encode($args[0]) . "\n";
    }

    #[After("execution(* App\Service\UserService->createUser(..))")]
    public function logAfter(JoinPoint $joinPoint): void
    {
        echo "用户创建操作已完成\n";
    }
}

use Kode\Aop\Runtime\AspectKernel;

$kernel = AspectKernel::getInstance();
$kernel->registerAspect(new LoggingAspect());
$kernel->init();

$userService = $kernel->getProxy(UserService::class);

$result = $userService->createUser([
    'name' => 'John Doe',
    'email' => '[email protected]'
]);

#[Before("execution(* App\Service\*->*(..))")]
public function logBefore(JoinPoint $joinPoint): void
{
    $methodName = $joinPoint->getMethodName();
    $args = $joinPoint->getArguments();

    echo "方法 {$methodName} 即将执行\n";

    // 修改参数
    if (isset($args[0])) {
        $args[0] = trim($args[0]);
        $joinPoint->setArguments($args);
    }
}

#[After("execution(* App\Service\*->*(..))")]
public function logAfter(JoinPoint $joinPoint): void
{
    $result = $joinPoint->getResult();
    echo "方法执行完成，返回值: " . json_encode($result) . "\n";
}

#[Around("execution(* App\Service\UserService->*(..))")]
public function transactional(ProceedingJoinPoint $joinPoint): mixed
{
    echo "开始事务\n";

    try {
        $result = $joinPoint->proceed();
        echo "提交事务\n";
        return $result;
    } catch (\Exception $e) {
        echo "回滚事务\n";
        throw $e;
    }
}

#[Aspect]
class PriorityAspect
{
    #[Before("execution(* App\Service\*->*(..))")]
    #[Priority(Priority::HIGHEST)]  // 最先执行
    public function first(JoinPoint $joinPoint): void
    {
        echo "第一个执行\n";
    }

    #[Before("execution(* App\Service\*->*(..))")]
    #[Priority(100)]
    public function second(JoinPoint $joinPoint): void
    {
        echo "第二个执行\n";
    }
}

$joinPoint->getClass();        // 获取目标类的反射对象
$joinPoint->getMethod();       // 获取目标方法的反射对象
$joinPoint->getThis();         // 获取目标对象实例
$joinPoint->getArguments();    // 获取方法参数
$joinPoint->setArguments([]);  // 设置方法参数
$joinPoint->getPointcut();     // 获取切入点表达式
$joinPoint->getResult();       // 获取返回值（After 通知）
$joinPoint->getMethodName();   // 获取方法名
$joinPoint->getClassName();    // 获取类名
$joinPoint->getArgument(0);    // 获取指定位置的参数

$result = $joinPoint->proceed();                    // 使用原始参数执行
$result = $joinPoint->proceed(['newArg']);          // 使用新参数执行
$result = $joinPoint->proceedWithNamedParams([...]); // 使用命名参数执行
$closure = $joinPoint->getProceedClosure();         // 获取执行闭包

// app/Providers/AopServiceProvider.php


namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Kode\Aop\Runtime\AspectKernel;

class AopServiceProvider extends ServiceProvider
{
    public function register(): void
    {
        $this->app->singleton(AspectKernel::class, function () {
            $kernel = AspectKernel::getInstance();
            $kernel->registerAspect(new \App\Aspects\LoggingAspect());
            $kernel->registerAspect(new \App\Aspects\TransactionAspect());
            $kernel->init();
            return $kernel;
        });
    }
}

// config/services.yaml
services:
    Kode\Aop\Runtime\AspectKernel:
        factory: ['@App\Aop\AspectKernelFactory', 'create']
        calls:
            - [init, []]

    App\Aop\AspectKernelFactory:
        class: App\Aop\AspectKernelFactory

// config/autoload/dependencies.php


return [
    Kode\Aop\Runtime\AspectKernel::class => function () {
        $kernel = Kode\Aop\Runtime\AspectKernel::getInstance();
        $kernel->registerAspect(new \App\Aspect\LoggingAspect());
        $kernel->init();
        return $kernel;
    },
];

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