| Total Complexity | 46 | 
| Total Lines | 387 | 
| Duplicated Lines | 0 % | 
| Changes | 0 | ||
Complex classes like Service 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 Service, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 15 | class Service implements \JsonSerializable  | 
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| 16 | { | 
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| 17 | /** @var string */  | 
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| 18 | private $serviceName = '';  | 
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| 19 | /** @var string|null */  | 
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| 20 | private $image = null;  | 
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| 21 | /** @var string[] */  | 
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| 22 | private $command = [];  | 
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| 23 | /** @var int[] */  | 
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| 24 | private $internalPorts = [];  | 
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| 25 | /** @var string[] */  | 
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| 26 | private $dependsOn = [];  | 
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| 27 | /** @var mixed[] */  | 
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| 28 | private $ports = [];  | 
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| 29 | /** @var mixed[] */  | 
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| 30 | private $labels = [];  | 
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| 31 | /** @var mixed[] */  | 
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| 32 | private $environment = [];  | 
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| 33 | /** @var mixed[] */  | 
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| 34 | private $volumes = [];  | 
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| 35 | /** @var \stdClass */  | 
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| 36 | private $validatorSchema;  | 
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| 37 | |||
| 38 | /**  | 
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| 39 | * Service constructor.  | 
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| 40 | */  | 
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| 41 | public function __construct()  | 
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| 42 |     { | 
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| 43 | $this->validatorSchema = json_decode(file_get_contents(__DIR__ . '/ServiceJsonSchema.json'), false);  | 
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| 44 | }  | 
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| 45 | |||
| 46 | /**  | 
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| 47 | * @param mixed[] $payload  | 
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| 48 | * @return Service  | 
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| 49 | * @throws ServiceException  | 
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| 50 | */  | 
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| 51 | public static function parsePayload(array $payload): Service  | 
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| 52 |     { | 
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| 53 | $service = new self();  | 
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| 54 | $service->checkValidity($payload);  | 
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| 55 | $service->serviceName = $payload['serviceName'] ?? '';  | 
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| 56 | $s = $payload['service'] ?? [];  | 
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| 57 |         if (!empty($s)) { | 
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| 58 | $service->image = $s['image'] ?? '';  | 
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| 59 | $service->command = $s['command'] ?? [];  | 
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| 60 | $service->internalPorts = $s['internalPorts'] ?? [];  | 
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| 61 | $service->dependsOn = $s['dependsOn'] ?? [];  | 
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| 62 | $service->ports = $s['ports'] ?? [];  | 
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| 63 | $service->labels = $s['labels'] ?? [];  | 
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| 64 |             if (!empty($s['environment'])) { | 
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| 65 |                 foreach ($s['environment'] as $key => $env) { | 
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| 66 | $service->addEnvVar($key, $env['value'], $env['type']);  | 
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| 67 | }  | 
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| 68 | }  | 
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| 69 |             if (!empty($s['volumes'])) { | 
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| 70 |                 foreach ($s['volumes'] as $vol) { | 
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| 71 | $service->addVolume($vol['type'], $vol['source'], $vol['target'] ?? '', $vol['readOnly'] ?? false);  | 
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| 72 | }  | 
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| 73 | }  | 
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| 74 | }  | 
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| 75 | return $service;  | 
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| 76 | }  | 
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| 77 | |||
| 78 | /**  | 
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| 79 | * Specify data which should be serialized to JSON  | 
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| 80 | * @link http://php.net/manual/en/jsonserializable.jsonserialize.php  | 
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| 81 | * @return array data which can be serialized by <b>json_encode</b>,  | 
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| 82 | * which is a value of any type other than a resource.  | 
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| 83 | * @since 5.4.0  | 
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| 84 | * @throws ServiceException  | 
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| 85 | */  | 
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| 86 | public function jsonSerialize(): array  | 
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| 87 |     { | 
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| 88 |         $jsonSerializeMap = function (\JsonSerializable $obj): array { | 
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| 89 | return $obj->jsonSerialize();  | 
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| 90 | };  | 
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| 91 | |||
| 92 | $array = array(  | 
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| 93 | 'serviceName' => $this->serviceName,  | 
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| 94 | 'service' => array_filter([  | 
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| 95 | 'image' => $this->image,  | 
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| 96 | 'command' => $this->command,  | 
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| 97 | 'internalPorts' => $this->internalPorts,  | 
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| 98 | 'dependsOn' => $this->dependsOn,  | 
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| 99 | 'ports' => $this->ports,  | 
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| 100 | 'labels' => $this->labels,  | 
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| 101 | 'environment' => array_map($jsonSerializeMap, $this->environment),  | 
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| 102 | 'volumes' => array_map($jsonSerializeMap, $this->volumes),  | 
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| 103 | ])  | 
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| 104 | );  | 
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| 105 | |||
| 106 | $this->checkValidity($array);  | 
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| 107 | return $array;  | 
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| 108 | }  | 
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| 109 | |||
| 110 | /**  | 
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| 111 | * @param \stdClass|array|string $data  | 
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| 112 | * @return bool  | 
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| 113 | * @throws ServiceException  | 
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| 114 | */  | 
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| 115 | private function checkValidity($data): bool  | 
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| 116 |     { | 
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| 117 |         if (\is_array($data)) { | 
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| 118 | $data = json_decode(json_encode($data), false);  | 
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| 119 | }  | 
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| 120 | $validator = new Validator();  | 
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| 121 | $result = $validator->dataValidation($data, $this->validatorSchema);  | 
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| 122 |         if (!$result->isValid()) { | 
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| 123 | /** @var ValidationError $vError */  | 
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| 124 | $vError = $result->getFirstError();  | 
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| 125 | throw ServiceException::invalidServiceData($vError);  | 
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| 126 | }  | 
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| 127 | return $result->isValid();  | 
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| 128 | }  | 
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| 129 | |||
| 130 | /**  | 
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| 131 | * @return string  | 
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| 132 | */  | 
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| 133 | public function getServiceName(): string  | 
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| 134 |     { | 
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| 135 | return $this->serviceName;  | 
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| 136 | }  | 
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| 137 | |||
| 138 | /**  | 
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| 139 | * @return string|null  | 
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| 140 | */  | 
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| 141 | public function getImage(): ?string  | 
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| 142 |     { | 
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| 143 | return $this->image;  | 
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| 144 | }  | 
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| 145 | |||
| 146 | /**  | 
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| 147 | * @return string[]  | 
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| 148 | */  | 
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| 149 | public function getCommand(): array  | 
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| 150 |     { | 
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| 151 | return $this->command;  | 
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| 152 | }  | 
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| 153 | |||
| 154 | /**  | 
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| 155 | * @return int[]  | 
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| 156 | */  | 
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| 157 | public function getInternalPorts(): array  | 
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| 158 |     { | 
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| 159 | return $this->internalPorts;  | 
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| 160 | }  | 
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| 161 | |||
| 162 | /**  | 
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| 163 | * @return string[]  | 
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| 164 | */  | 
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| 165 | public function getDependsOn(): array  | 
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| 166 |     { | 
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| 167 | return $this->dependsOn;  | 
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| 168 | }  | 
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| 169 | |||
| 170 | /**  | 
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| 171 | * @return mixed[]  | 
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| 172 | */  | 
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| 173 | public function getPorts(): array  | 
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| 174 |     { | 
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| 175 | return $this->ports;  | 
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| 176 | }  | 
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| 177 | |||
| 178 | /**  | 
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| 179 | * @return mixed[]  | 
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| 180 | */  | 
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| 181 | public function getLabels(): array  | 
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| 182 |     { | 
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| 183 | return $this->labels;  | 
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| 184 | }  | 
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| 185 | |||
| 186 | /**  | 
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| 187 | * @return mixed[]  | 
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| 188 | */  | 
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| 189 | public function getEnvironment(): array  | 
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| 190 |     { | 
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| 191 | return $this->environment;  | 
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| 192 | }  | 
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| 193 | |||
| 194 | /**  | 
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| 195 | * @return mixed[]  | 
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| 196 | */  | 
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| 197 | public function getVolumes(): array  | 
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| 198 |     { | 
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| 199 | return $this->volumes;  | 
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| 200 | }  | 
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| 201 | |||
| 202 | /**  | 
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| 203 | * @param string $serviceName  | 
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| 204 | */  | 
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| 205 | public function setServiceName(string $serviceName): void  | 
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| 206 |     { | 
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| 207 | $this->serviceName = $serviceName;  | 
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| 208 | }  | 
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| 209 | |||
| 210 | /**  | 
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| 211 | * @param string|null $image  | 
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| 212 | */  | 
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| 213 | public function setImage(?string $image): void  | 
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| 214 |     { | 
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| 215 | $this->image = $image;  | 
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| 216 | }  | 
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| 217 | |||
| 218 | /**  | 
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| 219 | * @param string[] $command  | 
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| 220 | */  | 
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| 221 | public function setCommand(array $command): void  | 
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| 222 |     { | 
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| 223 | $this->command = $command;  | 
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| 224 | }  | 
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| 225 | |||
| 226 | /**  | 
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| 227 | * @param int[] $internalPorts  | 
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| 228 | */  | 
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| 229 | public function setInternalPorts(array $internalPorts): void  | 
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| 230 |     { | 
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| 231 | $this->internalPorts = $internalPorts;  | 
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| 232 | }  | 
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| 233 | |||
| 234 | /**  | 
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| 235 | * @param string[] $dependsOn  | 
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| 236 | */  | 
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| 237 | public function setDependsOn(array $dependsOn): void  | 
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| 238 |     { | 
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| 239 | $this->dependsOn = $dependsOn;  | 
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| 240 | }  | 
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| 241 | |||
| 242 | /**  | 
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| 243 | * @param string $command  | 
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| 244 | */  | 
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| 245 | public function addCommand(string $command) : void  | 
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| 246 |     { | 
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| 247 | $this->command[] = $command;  | 
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| 248 | }  | 
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| 249 | |||
| 250 | /**  | 
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| 251 | * @param int $internalPort  | 
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| 252 | */  | 
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| 253 | public function addInternalPort(int $internalPort): void  | 
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| 254 |     { | 
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| 255 | $this->internalPorts[] = $internalPort;  | 
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| 256 | }  | 
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| 257 | |||
| 258 | /**  | 
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| 259 | * @param string $dependsOn  | 
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| 260 | */  | 
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| 261 | public function addDependsOn(string $dependsOn): void  | 
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| 262 |     { | 
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| 263 | $this->dependsOn[] = $dependsOn;  | 
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| 264 | }  | 
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| 265 | |||
| 266 | /**  | 
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| 267 | * @param int $source  | 
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| 268 | * @param int $target  | 
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| 269 | */  | 
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| 270 | public function addPort(int $source, int $target): void  | 
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| 275 | );  | 
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| 276 | }  | 
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| 277 | |||
| 278 | /**  | 
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| 279 | * @param string $key  | 
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| 280 | * @param string $value  | 
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| 281 | */  | 
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| 282 | public function addLabel(string $key, string $value): void  | 
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| 283 |     { | 
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| 284 | $this->labels[] = array(  | 
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| 285 | 'key' => $key,  | 
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| 286 | 'values' => $value,  | 
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| 287 | );  | 
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| 288 | }  | 
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| 289 | |||
| 290 | /**  | 
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| 291 | * @param string $key  | 
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| 292 | * @param string $value  | 
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| 293 | * @param string $type  | 
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| 294 | * @throws ServiceException  | 
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| 295 | */  | 
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| 296 | private function addEnvVar(string $key, string $value, string $type): void  | 
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| 297 |     { | 
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| 298 |         switch ($type) { | 
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| 299 | case EnvVariableTypeEnum::SHARED_ENV_VARIABLE:  | 
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| 300 | $this->addSharedEnvVariable($key, $value);  | 
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| 301 | break;  | 
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| 302 | case EnvVariableTypeEnum::SHARED_SECRET:  | 
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| 303 | $this->addSharedSecret($key, $value);  | 
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| 304 | break;  | 
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| 305 | case EnvVariableTypeEnum::IMAGE_ENV_VARIABLE:  | 
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| 306 | $this->addImageEnvVariable($key, $value);  | 
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| 307 | break;  | 
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| 308 | case EnvVariableTypeEnum::CONTAINER_ENV_VARIABLE:  | 
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| 309 | $this->addContainerEnvVariable($key, $value);  | 
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| 310 | break;  | 
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| 311 | default:  | 
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| 312 | throw ServiceException::unknownEnvVariableType($type);  | 
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| 313 | }  | 
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| 314 | }  | 
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| 315 | |||
| 316 | /**  | 
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| 317 | * @param string $key  | 
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| 318 | * @param string $value  | 
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| 319 | */  | 
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| 320 | public function addSharedEnvVariable(string $key, string $value): void  | 
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| 321 |     { | 
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| 322 | $this->environment[$key] = new EnvVariable($value, 'sharedEnvVariable');  | 
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| 323 | }  | 
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| 324 | |||
| 325 | /**  | 
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| 326 | * @param string $key  | 
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| 327 | * @param string $value  | 
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| 328 | */  | 
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| 329 | public function addSharedSecret(string $key, string $value): void  | 
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| 330 |     { | 
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| 331 | $this->environment[$key] = new EnvVariable($value, 'sharedSecret');  | 
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| 332 | }  | 
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| 333 | |||
| 334 | /**  | 
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| 335 | * @param string $key  | 
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| 336 | * @param string $value  | 
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| 337 | */  | 
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| 338 | public function addImageEnvVariable(string $key, string $value): void  | 
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| 339 |     { | 
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| 340 | $this->environment[$key] = new EnvVariable($value, 'imageEnvVariable');  | 
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| 341 | }  | 
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| 342 | |||
| 343 | /**  | 
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| 344 | * @param string $key  | 
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| 345 | * @param string $value  | 
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| 346 | */  | 
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| 347 | public function addContainerEnvVariable(string $key, string $value): void  | 
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| 348 |     { | 
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| 349 | $this->environment[$key] = new EnvVariable($value, 'containerEnvVariable');  | 
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| 350 | }  | 
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| 351 | |||
| 352 | /**  | 
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| 353 | * @param string $type  | 
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| 354 | * @param string $source  | 
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| 355 | * @param string $target  | 
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| 356 | * @param bool $readOnly  | 
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| 357 | * @throws ServiceException  | 
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| 358 | */  | 
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| 359 | private function addVolume(string $type, string $source, string $target = '', bool $readOnly = false): void  | 
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| 360 |     { | 
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| 361 |         switch ($type) { | 
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| 362 | case VolumeTypeEnum::NAMED_VOLUME:  | 
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| 363 | $this->addNamedVolume($source, $target, $readOnly);  | 
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| 364 | break;  | 
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| 365 | case VolumeTypeEnum::BIND_VOLUME:  | 
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| 366 | $this->addBindVolume($source, $target, $readOnly);  | 
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| 367 | break;  | 
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| 368 | case VolumeTypeEnum::TMPFS_VOLUME:  | 
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| 369 | $this->addTmpfsVolume($source);  | 
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| 370 | break;  | 
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| 371 | default:  | 
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| 372 | throw ServiceException::unknownVolumeType($type);  | 
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| 373 | }  | 
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| 374 | }  | 
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| 375 | |||
| 376 | /**  | 
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| 377 | * @param string $source  | 
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| 378 | * @param string $target  | 
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| 379 | * @param bool $readOnly  | 
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| 380 | */  | 
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| 381 | public function addNamedVolume(string $source, string $target, bool $readOnly = false): void  | 
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| 382 |     { | 
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| 383 | $this->volumes[] = new NamedVolume($source, $target, $readOnly);  | 
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| 384 | }  | 
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| 385 | |||
| 386 | /**  | 
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| 387 | * @param string $source  | 
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| 388 | * @param string $target  | 
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| 389 | * @param bool $readOnly  | 
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| 390 | */  | 
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| 391 | public function addBindVolume(string $source, string $target, bool $readOnly = false): void  | 
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| 392 |     { | 
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| 393 | $this->volumes[] = new BindVolume($source, $target, $readOnly);  | 
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| 394 | }  | 
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| 395 | |||
| 396 | /**  | 
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| 397 | * @param string $source  | 
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| 398 | */  | 
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| 399 | public function addTmpfsVolume(string $source): void  | 
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| 402 | }  | 
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| 403 | }  | 
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| 404 |