| Total Complexity | 42 |
| Total Lines | 156 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Client often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Client, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 9 | class Client |
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| 10 | { |
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| 11 | use SimpleHttpTrait; |
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| 12 | |||
| 13 | protected $server; |
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| 14 | protected $appId; |
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| 15 | protected $cluster = 'default'; |
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| 16 | protected $namespaces = ['application']; |
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| 17 | protected $clientIp; |
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| 18 | protected $pullTimeout = 5; |
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| 19 | protected $backupOldEnv = false; |
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| 20 | |||
| 21 | protected $releaseKeys = []; |
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| 22 | protected $notifications = []; |
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| 23 | |||
| 24 | protected $watching = true; |
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| 25 | |||
| 26 | public function __construct(array $settings) |
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| 27 | { |
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| 28 | $this->server = $settings['server']; |
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| 29 | $this->appId = $settings['app_id']; |
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| 30 | if (isset($settings['cluster'])) { |
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| 31 | $this->cluster = $settings['cluster']; |
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| 32 | } |
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| 33 | if (isset($settings['namespaces'])) { |
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| 34 | $this->namespaces = $settings['namespaces']; |
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| 35 | } |
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| 36 | if (isset($settings['client_ip'])) { |
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| 37 | $this->clientIp = $settings['client_ip']; |
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| 38 | } else { |
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| 39 | $this->clientIp = current(swoole_get_local_ip()) ?: null; |
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| 40 | } |
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| 41 | if (isset($settings['pull_timeout'])) { |
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| 42 | $this->pullTimeout = (int)$settings['pull_timeout']; |
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| 43 | } |
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| 44 | if (isset($settings['backup_old_env'])) { |
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| 45 | $this->backupOldEnv = (bool)$settings['backup_old_env']; |
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| 46 | } |
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| 47 | } |
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| 48 | |||
| 49 | public static function createFromEnv() |
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| 50 | { |
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| 51 | if (!getenv('APOLLO_SERVER') || !getenv('APOLLO_APP_ID')) { |
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| 52 | throw new \InvalidArgumentException('Missing environment variable APOLLO_SERVER & APOLLO_APP_ID'); |
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| 53 | } |
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| 54 | $options = [ |
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| 55 | 'server' => getenv('APOLLO_SERVER'), |
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| 56 | 'app_id' => getenv('APOLLO_APP_ID'), |
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| 57 | 'cluster' => getenv('APOLLO_CLUSTER') ?: null, |
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| 58 | 'namespaces' => explode(',', getenv('APOLLO_NAMESPACES')) ?: null, |
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| 59 | 'client_ip' => getenv('APOLLO_CLIENT_IP') ?: null, |
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| 60 | 'pull_timeout' => getenv('APOLLO_PULL_TIMEOUT') ?: null, |
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| 61 | 'backup_old_env' => getenv('APOLLO_BACKUP_OLD_ENV') ?: false, |
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| 62 | ]; |
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| 63 | return new static($options); |
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| 64 | } |
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| 65 | |||
| 66 | |||
| 67 | public function pullBatch(array $namespaces, $withReleaseKey = false, array $options = []) |
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| 68 | { |
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| 69 | $configs = []; |
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| 70 | $uri = sprintf('%s/configs/%s/%s/', $this->server, $this->appId, $this->cluster); |
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| 71 | foreach ($namespaces as $namespace) { |
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| 72 | $url = $uri . $namespace . '?' . http_build_query([ |
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| 73 | 'releaseKey' => $withReleaseKey && isset($this->releaseKeys[$namespace]) ? $this->releaseKeys[$namespace] : null, |
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| 74 | 'ip' => $this->clientIp, |
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| 75 | ]); |
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| 76 | $timeout = isset($options['timeout']) ? $options['timeout'] : $this->pullTimeout; |
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| 77 | $response = $this->httpGet($url, compact('timeout')); |
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| 78 | if ($response['statusCode'] === 200) { |
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| 79 | $configs[$namespace] = json_decode($response['body'], true); |
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| 80 | $this->releaseKeys[$namespace] = $configs[$namespace]['releaseKey']; |
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| 81 | } elseif ($response['statusCode'] === 304) { |
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| 82 | // ignore 304 |
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| 83 | } |
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| 84 | |||
| 85 | } |
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| 86 | return $configs; |
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| 87 | } |
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| 88 | |||
| 89 | public function pullAll($withReleaseKey = false, array $options = []) |
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| 90 | { |
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| 91 | return $this->pullBatch($this->namespaces, $withReleaseKey, $options); |
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| 92 | } |
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| 93 | |||
| 94 | public function pullAllAndSave($filepath, array $options = []) |
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| 95 | { |
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| 96 | $all = $this->pullAll(false, $options); |
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| 97 | if (count($all) !== count($this->namespaces)) { |
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| 98 | throw new \RuntimeException('Incomplete Apollo configuration list'); |
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| 99 | } |
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| 100 | $configs = []; |
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| 101 | foreach ($all as $namespace => $config) { |
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| 102 | $configs[] = '# Namespace: ' . $config['namespaceName']; |
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| 103 | ksort($config['configurations']); |
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| 104 | foreach ($config['configurations'] as $key => $value) { |
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| 105 | $configs[] = sprintf('%s=%s', $key, $value); |
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| 106 | } |
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| 107 | } |
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| 108 | if (empty($configs)) { |
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| 109 | throw new \RuntimeException('Empty Apollo configuration list'); |
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| 110 | } |
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| 111 | if ($this->backupOldEnv && file_exists($filepath)) { |
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| 112 | rename($filepath, $filepath . '.' . date('YmdHis')); |
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| 113 | } |
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| 114 | $fileContent = implode(PHP_EOL, $configs); |
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| 115 | if (Context::inCoroutine()) { |
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| 116 | Coroutine::writeFile($filepath, $fileContent); |
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| 117 | } else { |
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| 118 | file_put_contents($filepath, $fileContent); |
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| 119 | } |
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| 120 | return $configs; |
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| 121 | } |
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| 122 | |||
| 123 | public function startWatchNotification(callable $callback, array $options = []) |
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| 124 | { |
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| 125 | if (!isset($options['timeout']) || $options['timeout'] < 60) { |
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| 126 | $options['timeout'] = 70; |
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| 127 | } |
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| 128 | $this->watching = true; |
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| 129 | $this->notifications = []; |
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| 130 | foreach ($this->namespaces as $namespace) { |
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| 131 | $this->notifications[$namespace] = ['namespaceName' => $namespace, 'notificationId' => -1]; |
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| 132 | } |
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| 133 | while ($this->watching) { |
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| 134 | $url = sprintf('%s/notifications/v2?%s', |
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| 135 | $this->server, |
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| 136 | http_build_query([ |
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| 137 | 'appId' => $this->appId, |
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| 138 | 'cluster' => $this->cluster, |
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| 139 | 'notifications' => json_encode(array_values($this->notifications)), |
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| 140 | ]) |
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| 141 | ); |
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| 142 | $response = $this->httpGet($url, $options); |
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| 143 | |||
| 144 | if ($response['statusCode'] === 200) { |
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| 145 | $notifications = json_decode($response['body'], true); |
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| 146 | if (empty($notifications)) { |
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| 147 | continue; |
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| 148 | } |
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| 149 | if (!empty($this->notifications) && current($this->notifications)['notificationId'] !== -1) { // Ignore the first pull |
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| 150 | $callback($notifications); |
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| 151 | } |
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| 152 | array_walk($notifications, function (&$notification) { |
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| 153 | unset($notification['messages']); |
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| 154 | }); |
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| 155 | $this->notifications = array_merge($this->notifications, array_column($notifications, null, 'namespaceName')); |
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| 156 | } elseif ($response['statusCode'] === 304) { |
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| 157 | // ignore 304 |
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| 158 | } |
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| 159 | } |
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| 160 | } |
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| 161 | |||
| 162 | public function stopWatchNotification() |
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| 165 | } |
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| 166 | } |
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| 167 |