Created
July 8, 2014 08:22
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PluginEngine v2.0++
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<? | |
interface SomeRole { | |
public function foo(); | |
public static function bar(); | |
} | |
class A extends Plugin {} | |
class B extends A { | |
public function foo() {} | |
} | |
class C extends B { | |
public static function bar() {} | |
} | |
class D extends B { | |
public static function bar($param1, $param2) {} | |
} | |
class PluginManager { | |
function getPlugins($role) | |
{ | |
$pluginClasses = range("A", "D"); | |
return array_filter($pluginClasses, function ($plugin) use ($role) { return $plugin::does($role); }); | |
} | |
} | |
$pm = new PluginManager(); | |
var_dump($pm->getPlugins("SomeRole")); | |
class Plugin { | |
public static function does($role) { | |
// loadRole($role); | |
$klass = get_called_class(); | |
$rc = new ReflectionClass($role); | |
$methods = $rc->getMethods(); | |
foreach ($methods as $interfaceMethod) { | |
// check public methods only | |
if (!$interfaceMethod->isPublic()) { | |
continue; | |
} | |
$equals = function ($m1, $m2) { | |
return $m1->isStatic() === $m2->isStatic() | |
&& $m1->getNumberOfParameters() === $m2->getNumberOfParameters(); | |
}; | |
try { | |
$myMethod = new ReflectionMethod($klass, $interfaceMethod->name); | |
if (!$equals($interfaceMethod, $myMethod)) { | |
return false; | |
} | |
} catch (ReflectionException $re) { | |
return false; | |
} | |
} | |
return true; | |
} | |
} |
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