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<?php |
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/** |
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* GpsLab component. |
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* |
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* @author Peter Gribanov <[email protected]> |
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* @copyright Copyright (c) 2011, Peter Gribanov |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace GpsLab\Component\Sitemap\Stream; |
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use GpsLab\Component\Sitemap\Render\SitemapRender; |
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use GpsLab\Component\Sitemap\Stream\Exception\FileAccessException; |
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use GpsLab\Component\Sitemap\Stream\Exception\LinksOverflowException; |
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use GpsLab\Component\Sitemap\Stream\Exception\SizeOverflowException; |
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use GpsLab\Component\Sitemap\Stream\Exception\StreamStateException; |
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use GpsLab\Component\Sitemap\Stream\State\StreamState; |
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use GpsLab\Component\Sitemap\Url\Url; |
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class RenderBzip2FileStream implements FileStream |
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{ |
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/** |
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* @var SitemapRender |
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*/ |
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private $render; |
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/** |
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* @var StreamState |
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*/ |
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private $state; |
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/** |
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* @var resource|null |
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*/ |
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private $handle; |
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/** |
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* @var string |
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*/ |
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private $filename; |
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/** |
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* @var string |
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*/ |
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private $tmp_filename = ''; |
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/** |
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* @var int |
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*/ |
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private $counter = 0; |
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/** |
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* @var string |
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*/ |
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private $end_string = ''; |
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/** |
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* @var int |
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*/ |
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private $used_bytes = 0; |
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/** |
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* @param SitemapRender $render |
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* @param string $filename |
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*/ |
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public function __construct(SitemapRender $render, $filename) |
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{ |
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$this->render = $render; |
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$this->state = new StreamState(); |
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$this->filename = $filename; |
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} |
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/** |
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* @return string |
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*/ |
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public function getFilename() |
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{ |
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return $this->filename; |
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} |
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/** |
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* @return void |
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*/ |
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public function open() |
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{ |
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$this->state->open(); |
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$tmp_filename = tempnam(sys_get_temp_dir(), 'sitemap'); |
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if ($tmp_filename === false) { |
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throw FileAccessException::failedCreateUnique(sys_get_temp_dir(), 'sitemap'); |
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} |
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if ((file_exists($this->filename) && !is_writable($this->filename))) { |
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throw FileAccessException::notWritable($this->filename); |
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} |
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$handle = @bzopen($this->tmp_filename, 'w'); |
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if ($handle === false) { |
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throw FileAccessException::notWritable($this->filename); |
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} |
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$this->tmp_filename = $tmp_filename; |
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$this->handle = $handle; |
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$this->write($this->render->start()); |
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// render end string only once |
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$this->end_string = $this->render->end(); |
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} |
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/** |
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* @return void |
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*/ |
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View Code Duplication |
public function close() |
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{ |
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$this->state->close(); |
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$this->write($this->end_string); |
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bzclose($this->handle); |
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if (!rename($this->tmp_filename, $this->filename)) { |
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unlink($this->tmp_filename); |
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throw FileAccessException::failedOverwrite($this->tmp_filename, $this->filename); |
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} |
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$this->handle = null; |
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$this->tmp_filename = ''; |
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$this->counter = 0; |
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$this->used_bytes = 0; |
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} |
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/** |
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* @param Url $url |
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* |
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* @return void |
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*/ |
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View Code Duplication |
public function push(Url $url) |
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{ |
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if (!$this->state->isReady()) { |
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throw StreamStateException::notReady(); |
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} |
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if ($this->counter >= self::LINKS_LIMIT) { |
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throw LinksOverflowException::withLimit(self::LINKS_LIMIT); |
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} |
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$render_url = $this->render->url($url); |
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$expected_bytes = $this->used_bytes + strlen($render_url) + strlen($this->end_string); |
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if ($expected_bytes > self::BYTE_LIMIT) { |
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throw SizeOverflowException::withLimit(self::BYTE_LIMIT); |
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} |
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$this->write($render_url); |
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++$this->counter; |
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} |
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/** |
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* @return int |
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*/ |
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public function count() |
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{ |
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return $this->counter; |
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} |
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/** |
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* @param string $string |
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* |
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* @return void |
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*/ |
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private function write($string) |
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{ |
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bzwrite($this->handle, $string); |
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$this->used_bytes += strlen($string); |
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} |
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} |
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gpslab /
sitemap
