| Total Complexity | 89 |
| Total Lines | 445 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Input 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 Input, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 18 | class Input |
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| 19 | { |
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| 20 | |||
| 21 | /** |
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| 22 | * @var Definition |
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| 23 | */ |
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| 24 | protected $definition; |
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| 25 | |||
| 26 | /** |
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| 27 | * @var Option[] |
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| 28 | */ |
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| 29 | protected $options = []; |
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| 30 | |||
| 31 | /** |
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| 32 | * @var Argument[] |
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| 33 | */ |
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| 34 | protected $arguments = []; |
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| 35 | |||
| 36 | protected $interactive = true; |
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| 37 | |||
| 38 | private $tokens; |
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| 39 | private $parsed; |
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| 40 | |||
| 41 | public function __construct($argv = null) |
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| 42 | { |
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| 43 | if (null === $argv) { |
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| 44 | $argv = $_SERVER['argv']; |
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| 45 | // 去除命令名 |
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| 46 | array_shift($argv); |
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| 47 | } |
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| 48 | |||
| 49 | $this->tokens = $argv; |
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| 50 | |||
| 51 | $this->definition = new Definition(); |
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| 52 | } |
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| 53 | |||
| 54 | protected function setTokens(array $tokens) |
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| 55 | { |
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| 56 | $this->tokens = $tokens; |
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| 57 | } |
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| 58 | |||
| 59 | /** |
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| 60 | * 绑定实例 |
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| 61 | * @param Definition $definition A InputDefinition instance |
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| 62 | */ |
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| 63 | public function bind(Definition $definition) |
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| 64 | { |
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| 65 | $this->arguments = []; |
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| 66 | $this->options = []; |
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| 67 | $this->definition = $definition; |
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| 68 | |||
| 69 | $this->parse(); |
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| 70 | } |
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| 71 | |||
| 72 | /** |
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| 73 | * 解析参数 |
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| 74 | */ |
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| 75 | protected function parse() |
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| 76 | { |
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| 77 | $parseOptions = true; |
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| 78 | $this->parsed = $this->tokens; |
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| 79 | while (null !== $token = array_shift($this->parsed)) { |
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| 80 | if ($parseOptions && '' == $token) { |
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| 81 | $this->parseArgument($token); |
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| 82 | } elseif ($parseOptions && '--' == $token) { |
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| 83 | $parseOptions = false; |
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| 84 | } elseif ($parseOptions && 0 === strpos($token, '--')) { |
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| 85 | $this->parseLongOption($token); |
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| 86 | } elseif ($parseOptions && '-' === $token[0] && '-' !== $token) { |
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| 87 | $this->parseShortOption($token); |
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| 88 | } else { |
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| 89 | $this->parseArgument($token); |
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| 90 | } |
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| 91 | } |
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| 92 | } |
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| 93 | |||
| 94 | /** |
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| 95 | * 解析短选项 |
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| 96 | * @param string $token 当前的指令. |
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| 97 | */ |
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| 98 | private function parseShortOption($token) |
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| 99 | { |
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| 100 | $name = substr($token, 1); |
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| 101 | |||
| 102 | if (strlen($name) > 1) { |
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| 103 | if ($this->definition->hasShortcut($name[0]) |
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| 104 | && $this->definition->getOptionForShortcut($name[0])->acceptValue() |
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| 105 | ) { |
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| 106 | $this->addShortOption($name[0], substr($name, 1)); |
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| 107 | } else { |
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| 108 | $this->parseShortOptionSet($name); |
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| 109 | } |
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| 110 | } else { |
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| 111 | $this->addShortOption($name, null); |
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| 112 | } |
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| 113 | } |
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| 114 | |||
| 115 | /** |
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| 116 | * 解析短选项 |
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| 117 | * @param string $name 当前指令 |
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| 118 | * @throws \RuntimeException |
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| 119 | */ |
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| 120 | private function parseShortOptionSet($name) |
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| 121 | { |
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| 122 | $len = strlen($name); |
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| 123 | for ($i = 0; $i < $len; ++$i) { |
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| 124 | if (!$this->definition->hasShortcut($name[$i])) { |
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| 125 | throw new \RuntimeException(sprintf('The "-%s" option does not exist.', $name[$i])); |
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| 126 | } |
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| 127 | |||
| 128 | $option = $this->definition->getOptionForShortcut($name[$i]); |
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| 129 | if ($option->acceptValue()) { |
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| 130 | $this->addLongOption($option->getName(), $i === $len - 1 ? null : substr($name, $i + 1)); |
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| 131 | |||
| 132 | break; |
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| 133 | } else { |
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| 134 | $this->addLongOption($option->getName(), null); |
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| 135 | } |
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| 136 | } |
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| 137 | } |
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| 138 | |||
| 139 | /** |
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| 140 | * 解析完整选项 |
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| 141 | * @param string $token 当前指令 |
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| 142 | */ |
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| 143 | private function parseLongOption($token) |
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| 144 | { |
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| 145 | $name = substr($token, 2); |
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| 146 | |||
| 147 | if (false !== $pos = strpos($name, '=')) { |
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| 148 | $this->addLongOption(substr($name, 0, $pos), substr($name, $pos + 1)); |
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| 149 | } else { |
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| 150 | $this->addLongOption($name, null); |
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| 151 | } |
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| 152 | } |
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| 153 | |||
| 154 | /** |
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| 155 | * 解析参数 |
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| 156 | * @param string $token 当前指令 |
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| 157 | * @throws \RuntimeException |
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| 158 | */ |
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| 159 | private function parseArgument($token) |
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| 160 | { |
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| 161 | $c = count($this->arguments); |
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| 162 | |||
| 163 | if ($this->definition->hasArgument($c)) { |
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| 164 | $arg = $this->definition->getArgument($c); |
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| 165 | |||
| 166 | $this->arguments[$arg->getName()] = $arg->isArray() ? [$token] : $token; |
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| 167 | |||
| 168 | } elseif ($this->definition->hasArgument($c - 1) && $this->definition->getArgument($c - 1)->isArray()) { |
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| 169 | $arg = $this->definition->getArgument($c - 1); |
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| 170 | |||
| 171 | $this->arguments[$arg->getName()][] = $token; |
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| 172 | } else { |
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| 173 | throw new \RuntimeException('Too many arguments.'); |
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| 174 | } |
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| 175 | } |
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| 176 | |||
| 177 | /** |
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| 178 | * 添加一个短选项的值 |
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| 179 | * @param string $shortcut 短名称 |
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| 180 | * @param mixed $value 值 |
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| 181 | * @throws \RuntimeException |
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| 182 | */ |
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| 183 | private function addShortOption($shortcut, $value) |
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| 184 | { |
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| 185 | if (!$this->definition->hasShortcut($shortcut)) { |
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| 186 | throw new \RuntimeException(sprintf('The "-%s" option does not exist.', $shortcut)); |
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| 187 | } |
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| 188 | |||
| 189 | $this->addLongOption($this->definition->getOptionForShortcut($shortcut)->getName(), $value); |
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| 190 | } |
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| 191 | |||
| 192 | /** |
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| 193 | * 添加一个完整选项的值 |
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| 194 | * @param string $name 选项名 |
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| 195 | * @param mixed $value 值 |
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| 196 | * @throws \RuntimeException |
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| 197 | */ |
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| 198 | private function addLongOption($name, $value) |
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| 199 | { |
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| 200 | if (!$this->definition->hasOption($name)) { |
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| 201 | throw new \RuntimeException(sprintf('The "--%s" option does not exist.', $name)); |
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| 202 | } |
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| 203 | |||
| 204 | $option = $this->definition->getOption($name); |
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| 205 | |||
| 206 | if (false === $value) { |
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| 207 | $value = null; |
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| 208 | } |
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| 209 | |||
| 210 | if (null !== $value && !$option->acceptValue()) { |
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| 211 | throw new \RuntimeException(sprintf('The "--%s" option does not accept a value.', $name, $value)); |
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| 212 | } |
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| 213 | |||
| 214 | if (null === $value && $option->acceptValue() && count($this->parsed)) { |
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| 215 | $next = array_shift($this->parsed); |
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| 216 | if (isset($next[0]) && '-' !== $next[0]) { |
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| 217 | $value = $next; |
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| 218 | } elseif (empty($next)) { |
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| 219 | $value = ''; |
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| 220 | } else { |
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| 221 | array_unshift($this->parsed, $next); |
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| 222 | } |
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| 223 | } |
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| 224 | |||
| 225 | if (null === $value) { |
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| 226 | if ($option->isValueRequired()) { |
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| 227 | throw new \RuntimeException(sprintf('The "--%s" option requires a value.', $name)); |
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| 228 | } |
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| 229 | |||
| 230 | if (!$option->isArray()) { |
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| 231 | $value = $option->isValueOptional() ? $option->getDefault() : true; |
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| 232 | } |
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| 233 | } |
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| 234 | |||
| 235 | if ($option->isArray()) { |
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| 236 | $this->options[$name][] = $value; |
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| 237 | } else { |
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| 238 | $this->options[$name] = $value; |
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| 239 | } |
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| 240 | } |
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| 241 | |||
| 242 | /** |
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| 243 | * 获取第一个参数 |
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| 244 | * @return string|null |
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| 245 | */ |
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| 246 | public function getFirstArgument() |
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| 247 | { |
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| 248 | foreach ($this->tokens as $token) { |
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| 249 | if ($token && '-' === $token[0]) { |
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| 250 | continue; |
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| 251 | } |
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| 252 | |||
| 253 | return $token; |
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| 254 | } |
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| 255 | return; |
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| 256 | } |
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| 257 | |||
| 258 | /** |
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| 259 | * 检查原始参数是否包含某个值 |
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| 260 | * @param string|array $values 需要检查的值 |
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| 261 | * @return bool |
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| 262 | */ |
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| 263 | public function hasParameterOption($values) |
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| 276 | } |
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| 277 | |||
| 278 | /** |
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| 279 | * 获取原始选项的值 |
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| 280 | * @param string|array $values 需要检查的值 |
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| 281 | * @param mixed $default 默认值 |
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| 282 | * @return mixed The option value |
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| 283 | */ |
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| 284 | public function getParameterOption($values, $default = false) |
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| 285 | { |
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| 286 | $values = (array) $values; |
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| 287 | $tokens = $this->tokens; |
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| 288 | |||
| 289 | while (0 < count($tokens)) { |
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| 290 | $token = array_shift($tokens); |
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| 291 | |||
| 292 | foreach ($values as $value) { |
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| 293 | if ($token === $value || 0 === strpos($token, $value . '=')) { |
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| 294 | if (false !== $pos = strpos($token, '=')) { |
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| 295 | return substr($token, $pos + 1); |
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| 296 | } |
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| 297 | |||
| 298 | return array_shift($tokens); |
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| 299 | } |
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| 300 | } |
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| 301 | } |
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| 302 | |||
| 303 | return $default; |
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| 304 | } |
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| 305 | |||
| 306 | /** |
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| 307 | * 验证输入 |
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| 308 | * @throws \RuntimeException |
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| 309 | */ |
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| 310 | public function validate() |
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| 311 | { |
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| 312 | if (count($this->arguments) < $this->definition->getArgumentRequiredCount()) { |
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| 313 | throw new \RuntimeException('Not enough arguments.'); |
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| 314 | } |
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| 315 | } |
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| 316 | |||
| 317 | /** |
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| 318 | * 检查输入是否是交互的 |
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| 319 | * @return bool |
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| 320 | */ |
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| 321 | public function isInteractive() |
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| 322 | { |
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| 323 | return $this->interactive; |
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| 324 | } |
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| 325 | |||
| 326 | /** |
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| 327 | * 设置输入的交互 |
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| 328 | * @param bool |
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| 329 | */ |
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| 330 | public function setInteractive($interactive) |
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| 331 | { |
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| 332 | $this->interactive = (bool) $interactive; |
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| 333 | } |
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| 334 | |||
| 335 | /** |
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| 336 | * 获取所有的参数 |
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| 337 | * @return Argument[] |
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| 338 | */ |
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| 339 | public function getArguments() |
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| 340 | { |
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| 341 | return array_merge($this->definition->getArgumentDefaults(), $this->arguments); |
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| 342 | } |
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| 343 | |||
| 344 | /** |
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| 345 | * 根据名称获取参数 |
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| 346 | * @param string $name 参数名 |
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| 347 | * @return mixed |
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| 348 | * @throws \InvalidArgumentException |
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| 349 | */ |
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| 350 | public function getArgument($name) |
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| 351 | { |
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| 352 | if (!$this->definition->hasArgument($name)) { |
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| 353 | throw new \InvalidArgumentException(sprintf('The "%s" argument does not exist.', $name)); |
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| 354 | } |
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| 355 | |||
| 356 | return isset($this->arguments[$name]) ? $this->arguments[$name] : $this->definition->getArgument($name) |
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| 357 | ->getDefault(); |
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| 358 | } |
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| 359 | |||
| 360 | /** |
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| 361 | * 设置参数的值 |
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| 362 | * @param string $name 参数名 |
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| 363 | * @param string $value 值 |
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| 364 | * @throws \InvalidArgumentException |
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| 365 | */ |
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| 366 | public function setArgument($name, $value) |
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| 367 | { |
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| 368 | if (!$this->definition->hasArgument($name)) { |
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| 369 | throw new \InvalidArgumentException(sprintf('The "%s" argument does not exist.', $name)); |
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| 370 | } |
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| 371 | |||
| 372 | $this->arguments[$name] = $value; |
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| 373 | } |
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| 374 | |||
| 375 | /** |
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| 376 | * 检查是否存在某个参数 |
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| 377 | * @param string|int $name 参数名或位置 |
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| 378 | * @return bool |
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| 379 | */ |
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| 380 | public function hasArgument($name) |
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| 381 | { |
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| 382 | return $this->definition->hasArgument($name); |
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| 383 | } |
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| 384 | |||
| 385 | /** |
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| 386 | * 获取所有的选项 |
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| 387 | * @return Option[] |
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| 388 | */ |
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| 389 | public function getOptions() |
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| 392 | } |
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| 393 | |||
| 394 | /** |
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| 395 | * 获取选项值 |
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| 396 | * @param string $name 选项名称 |
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| 397 | * @return mixed |
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| 398 | * @throws \InvalidArgumentException |
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| 399 | */ |
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| 400 | public function getOption($name) |
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| 401 | { |
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| 402 | if (!$this->definition->hasOption($name)) { |
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| 403 | throw new \InvalidArgumentException(sprintf('The "%s" option does not exist.', $name)); |
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| 404 | } |
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| 405 | |||
| 406 | return isset($this->options[$name]) ? $this->options[$name] : $this->definition->getOption($name)->getDefault(); |
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| 407 | } |
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| 408 | |||
| 409 | /** |
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| 410 | * 设置选项值 |
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| 411 | * @param string $name 选项名 |
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| 412 | * @param string|bool $value 值 |
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| 413 | * @throws \InvalidArgumentException |
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| 414 | */ |
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| 415 | public function setOption($name, $value) |
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| 422 | } |
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| 423 | |||
| 424 | /** |
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| 425 | * 是否有某个选项 |
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| 426 | * @param string $name 选项名 |
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| 427 | * @return bool |
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| 428 | */ |
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| 429 | public function hasOption($name) |
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| 430 | { |
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| 431 | return $this->definition->hasOption($name) && isset($this->options[$name]); |
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| 432 | } |
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| 433 | |||
| 434 | /** |
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| 435 | * 转义指令 |
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| 436 | * @param string $token |
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| 437 | * @return string |
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| 438 | */ |
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| 439 | public function escapeToken($token) |
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| 440 | { |
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| 441 | return preg_match('{^[\w-]+$}', $token) ? $token : escapeshellarg($token); |
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| 442 | } |
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| 443 | |||
| 444 | /** |
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| 445 | * 返回传递给命令的参数的字符串 |
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| 446 | * @return string |
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| 447 | */ |
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| 448 | public function __toString() |
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| 463 | } |
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| 464 | } |
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| 465 |