70 lines
2.0 KiB
PHP
70 lines
2.0 KiB
PHP
<?php
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namespace SilverStripe\Core\Injector;
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/**
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* A class that proxies another, allowing various functionality to be
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* injected.
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*/
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class AopProxyService
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{
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public $beforeCall = [];
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public $afterCall = [];
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public $proxied;
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/**
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* Because we don't know exactly how the proxied class is usually called,
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* provide a default constructor
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*/
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public function __construct()
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{
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}
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public function __call($method, $args)
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{
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if (method_exists($this->proxied, $method ?? '')) {
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$continue = true;
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$result = null;
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if (isset($this->beforeCall[$method])) {
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$methods = $this->beforeCall[$method];
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if (!is_array($methods)) {
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$methods = [$methods];
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}
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foreach ($methods as $handler) {
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$alternateReturn = null;
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$proceed = $handler->beforeCall($this->proxied, $method, $args, $alternateReturn);
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if ($proceed === false) {
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$continue = false;
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// if something is set in, use it
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if ($alternateReturn) {
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$result = $alternateReturn;
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}
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}
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}
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}
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if ($continue) {
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$result = call_user_func_array([$this->proxied, $method], $args ?? []);
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if (isset($this->afterCall[$method])) {
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$methods = $this->afterCall[$method];
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if (!is_array($methods)) {
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$methods = [$methods];
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}
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foreach ($methods as $handler) {
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$return = $handler->afterCall($this->proxied, $method, $args, $result);
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if (!is_null($return)) {
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$result = $return;
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}
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}
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}
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}
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return $result;
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}
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}
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}
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