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<?php |
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namespace Pcelta\VirtualStream; |
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class Mode |
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{ |
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/** |
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* @var string |
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*/ |
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private $mode; |
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// Pointer is placed in the beginning |
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const READING = 'r'; |
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const READING_PLUS_WRITING = 'r+'; |
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const WRITING = 'w'; |
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const WRITING_PLUS_READING = 'w+'; |
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const CREATE_FOR_WRITING = 'x'; |
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const CREATE_FOR_WRITING_PLUS_READING = 'x+'; |
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const TRUNCATE_FOR_WRITING = 'c'; // If the file exists it will be truncated otherwise it will be created |
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const TRUNCATE_FOR_WRITING_PLUS_READING = 'c+'; |
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// Pointer is placed in the end |
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const APPEND_WRITING = 'a'; |
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const APPEND_WRITING_PLUS_READING = 'a+'; |
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/** |
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* @var array |
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*/ |
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protected static $allowedModes = [ |
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self::READING, |
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self::READING_PLUS_WRITING, |
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self::WRITING, |
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self::WRITING_PLUS_READING, |
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self::APPEND_WRITING, |
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self::APPEND_WRITING_PLUS_READING, |
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self::CREATE_FOR_WRITING, |
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self::CREATE_FOR_WRITING_PLUS_READING, |
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self::TRUNCATE_FOR_WRITING, |
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self::TRUNCATE_FOR_WRITING_PLUS_READING |
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]; |
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protected static $readingModes = [ |
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self::READING, |
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self::READING_PLUS_WRITING, |
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self::WRITING_PLUS_READING, |
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self::APPEND_WRITING_PLUS_READING, |
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self::CREATE_FOR_WRITING_PLUS_READING, |
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self::TRUNCATE_FOR_WRITING_PLUS_READING |
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]; |
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protected static $writingModes = [ |
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self::READING_PLUS_WRITING, |
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self::WRITING, |
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self::WRITING_PLUS_READING, |
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self::APPEND_WRITING, |
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self::APPEND_WRITING_PLUS_READING, |
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self::CREATE_FOR_WRITING, |
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self::CREATE_FOR_WRITING_PLUS_READING, |
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self::TRUNCATE_FOR_WRITING, |
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self::TRUNCATE_FOR_WRITING_PLUS_READING |
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]; |
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protected static $appendingMode = [ |
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self::APPEND_WRITING, |
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self::APPEND_WRITING_PLUS_READING, |
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]; |
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public function __construct(string $mode) |
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{ |
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$this->setMode($mode); |
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} |
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public function setMode(string $mode) |
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{ |
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if (!in_array($mode, self::$allowedModes)) { |
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throw new ModeNotAllowedException($mode); |
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} |
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$this->mode = $mode; |
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} |
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public function getMode(): string |
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{ |
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return $this->mode; |
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} |
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public function isReading(): bool |
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{ |
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return in_array($this->mode, self::$readingModes); |
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} |
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public function isWriting(): bool |
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{ |
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return in_array($this->mode, self::$writingModes); |
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} |
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public function isAppending(): bool |
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{ |
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return in_array($this->mode, self::$appendingMode); |
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} |
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} |
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pcelta /
virtual-stream
