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Dominik Liebler
committed
reworked the Mediator pattern
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11 files changed

+70
-120
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11 files changed

+70
-120
lines changed

‎Behavioral/Mediator/ConcreteMediator.php

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‎Behavioral/Mediator/Mediator.php

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interface Mediator
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{
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public function sendResponse(string $content);
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public function makeRequest();
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public function queryDb();
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public function getUser(string $username): string;
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}

‎Behavioral/Mediator/README.rst

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:language: php
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:linenos:
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ConcreteMediator.php
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.. literalinclude:: ConcreteMediator.php
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:language: php
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:linenos:
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Colleague.php
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.. literalinclude:: Colleague.php
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:language: php
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:linenos:
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Subsystem/Client.php
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Ui.php
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.. literalinclude:: Subsystem/Client.php
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.. literalinclude:: Ui.php
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:language: php
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:linenos:
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Subsystem/Database.php
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UserRepository.php
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.. literalinclude:: Subsystem/Database.php
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.. literalinclude:: UserRepository.php
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:language: php
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:linenos:
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Subsystem/Server.php
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UserRepositoryUiMediator.php
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.. literalinclude:: Subsystem/Server.php
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.. literalinclude:: UserRepositoryUiMediator.php
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:language: php
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:linenos:
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‎Behavioral/Mediator/Subsystem/Client.php

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‎Behavioral/Mediator/Subsystem/Database.php

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‎Behavioral/Mediator/Subsystem/Server.php

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‎Behavioral/Mediator/Tests/MediatorTest.php

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namespace DesignPatterns\Tests\Mediator\Tests;
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use DesignPatterns\Behavioral\Mediator\ConcreteMediator;
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use DesignPatterns\Behavioral\Mediator\Subsystem\Client;
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use DesignPatterns\Behavioral\Mediator\Subsystem\Database;
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use DesignPatterns\Behavioral\Mediator\Subsystem\Server;
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use DesignPatterns\Behavioral\Mediator\Ui;
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use DesignPatterns\Behavioral\Mediator\UserRepository;
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use DesignPatterns\Behavioral\Mediator\UserRepositoryUiMediator;
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use PHPUnit\Framework\TestCase;
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class MediatorTest extends TestCase
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{
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public function testOutputHelloWorld()
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{
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$client = new Client();
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new ConcreteMediator(new Database(), $client, new Server());
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$mediator = new UserRepositoryUiMediator(new UserRepository(), new UI());
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$this->expectOutputString('Hello World');
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$client->request();
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$this->expectOutputString('User: Dominik');
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$mediator->printInfoAbout('Dominik');
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}
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}

‎Behavioral/Mediator/Ui.php

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<?php declare(strict_types=1);
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namespace DesignPatterns\Behavioral\Mediator;
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class Ui extends Colleague
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{
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public function outputUserInfo(string $username)
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{
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echo $this->mediator->getUser($username);
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}
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}

‎Behavioral/Mediator/UserRepository.php

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<?php declare(strict_types=1);
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namespace DesignPatterns\Behavioral\Mediator;
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class UserRepository extends Colleague
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{
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public function getUserName(string $user): string
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{
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return 'User: ' . $user;
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}
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}

‎Behavioral/Mediator/UserRepositoryUiMediator.php

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<?php declare(strict_types=1);
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namespace DesignPatterns\Behavioral\Mediator;
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class UserRepositoryUiMediator implements Mediator
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{
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/**
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* @var UserRepository
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*/
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private $userRepository;
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/**
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* @var Ui
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*/
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private $ui;
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public function __construct(UserRepository $userRepository, Ui $ui)
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{
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$this->userRepository = $userRepository;
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$this->ui = $ui;
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$this->userRepository->setMediator($this);
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$this->ui->setMediator($this);
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}
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public function printInfoAbout(string $user)
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{
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$this->ui->outputUserInfo($user);
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}
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public function getUser(string $username): string
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{
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return $this->userRepository->getUserName($username);
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}
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}

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