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<?php |
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namespace WebStream\IO\Writer; |
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use WebStream\IO\File; |
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use WebStream\IO\FileOutputStream; |
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use WebStream\Exception\Extend\IOException; |
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/** |
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* SimpleFileWriter |
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* OutputStreamWriterを継承しているが、write以外の機能を無効にする |
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* @author Ryuichi TANAKA. |
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* @since 2016/02/25 |
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* @version 0.7 |
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*/ |
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class SimpleFileWriter extends OutputStreamWriter |
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{ |
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/** |
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* @var string ファイルパス |
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*/ |
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private $filepath; |
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/** |
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* @var int バッファリングサイズ |
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*/ |
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private $bufferSize; |
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/** |
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* @var string 書き込みモード |
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*/ |
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private $mode; |
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/** |
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* constructor |
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* @param string $filepath ファイルパス |
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* @param int $bufferSize バッファリングサイズ |
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*/ |
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public function __construct($filepath, $bufferSize = null) |
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{ |
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$dirname = dirname($filepath); |
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$dir = new File($dirname); |
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if (!$dir->isWritable()) { |
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throw new IOException("Cannot writable: " . $filepath); |
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} |
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$this->filepath = $filepath; |
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$this->bufferSize = $bufferSize; |
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$this->mode = file_exists($this->filepath) ? 'ab' : 'wb'; |
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} |
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/** |
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* ファイルに書き込む |
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* ファイルが存在する場合、常に追記モード |
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* @param mixed $data 書き込みデータ |
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*/ |
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public function write($data) |
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{ |
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$stream = fopen($this->filepath, $this->mode); |
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if ($this->bufferSize !== null && stream_set_write_buffer($stream, $this->bufferSize) !== 0) { |
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throw new IOException("Failed to change the buffer size."); |
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} |
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if (!is_resource($stream) || $stream === false) { |
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throw new IOException("Unable open " . $this->filepath); |
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} |
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View Code Duplication |
if (!flock($stream, LOCK_EX | LOCK_NB)) { |
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throw new IOException("Cannot lock file: " . $this->filepath); |
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} |
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if (fwrite($stream, $data) === false) { |
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flock($stream, LOCK_UN); |
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fclose($stream); |
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throw new IOException("Failed to write stream."); |
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} |
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fflush($stream); |
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flock($stream, LOCK_UN); |
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fclose($stream); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function close() |
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{ |
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// Nothing to do |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function flush() |
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{ |
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// Nothing to do |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function newLine() |
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{ |
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$this->write(PHP_EOL); |
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} |
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} |
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webstream-framework /
WebStream
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.