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<?php declare(strict_types=1); |
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/** |
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* XMPP Library |
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* |
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* Copyright (C) 2016, Some right reserved. |
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* |
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* @author Kacper "Kadet" Donat <[email protected]> |
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* |
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* Contact with author: |
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* Xmpp: [email protected] |
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* E-mail: [email protected] |
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* |
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* From Kadet with love. |
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*/ |
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namespace Kadet\Xmpp\Utils; |
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use React\Stream\DuplexStreamInterface; |
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use React\Stream\WritableStreamInterface; |
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abstract class StreamDecorator implements DuplexStreamInterface |
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{ |
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use BetterEmitter; |
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private $_redirectors; |
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/** |
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* @var DuplexStreamInterface |
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*/ |
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protected $_decorated = null; |
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/** |
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* StreamDecorator constructor. |
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* @param DuplexStreamInterface $decorated |
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*/ |
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public function __construct(DuplexStreamInterface $decorated = null) |
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{ |
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if($decorated !== null) { |
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$this->exchangeStream($decorated); |
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} |
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} |
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public function isReadable() |
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{ |
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return $this->_decorated->isReadable(); |
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} |
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public function pause() |
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{ |
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$this->_decorated->pause(); |
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} |
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public function resume() |
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{ |
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$this->_decorated->resume(); |
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} |
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public function pipe(WritableStreamInterface $destination, array $options = array()) |
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{ |
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$this->_decorated->pipe($destination, $options); |
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} |
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public function close() |
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{ |
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$this->_decorated->close(); |
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} |
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public function isWritable() |
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{ |
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return $this->_decorated->isWritable(); |
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} |
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public function write($data) |
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{ |
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return $this->_decorated->write($data); |
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} |
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public function end($data = null) |
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{ |
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return $this->_decorated->end($data); |
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} |
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public function exchangeStream(DuplexStreamInterface $stream) |
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{ |
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static $events = ['data', 'end', 'drain', 'error', 'close', 'pipe']; |
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if($this->_decorated !== null) { |
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$this->unsubscribe($this->_decorated, $events); |
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} |
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$this->subscribe($stream, $events); |
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$this->_decorated = $stream; |
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} |
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private function unsubscribe(DuplexStreamInterface $stream, array $events) |
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{ |
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foreach ($events as $event) { |
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if(!isset($this->_redirectors[$event])) { |
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continue; |
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} |
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$stream->removeListener($event, $this->_redirectors[$event]); |
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} |
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} |
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private function subscribe(DuplexStreamInterface $stream, array $events) |
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{ |
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foreach ($events as $event) { |
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if(!isset($this->_redirectors[$event])) { |
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$this->_redirectors[$event] = function (...$arguments) use ($event) { |
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$this->emit($event, $arguments); |
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}; |
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} |
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$stream->on($event, $this->_redirectors[$event]); |
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} |
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} |
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} |
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kadet1090 /
nucleus
