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<?php |
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/** |
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* AppserverIo\Properties\Filter\PropertyStreamFilter |
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* |
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* NOTICE OF LICENSE |
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* |
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* This source file is subject to the Open Software License (OSL 3.0) |
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* that is available through the world-wide-web at this URL: |
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* http://opensource.org/licenses/osl-3.0.php |
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* |
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* PHP version 5 |
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* |
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* @author Tim Wagner <[email protected]> |
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* @author Bernhard Wick <[email protected]> |
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* @copyright 2015 TechDivision GmbH <[email protected]> |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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* @link http://github.com/appserver-io/properties |
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* @link http://www.appserver.io |
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*/ |
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namespace AppserverIo\Properties\Filter; |
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/** |
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* A stream filter implementation that replaces the variables defined in a stream with |
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* the content of the properties file passed to the constructor. |
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* |
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* @author Tim Wagner <[email protected]> |
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* @author Bernhard Wick <[email protected]> |
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* @copyright 2015 TechDivision GmbH <[email protected]> |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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* @link http://github.com/appserver-io/properties |
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* @link http://www.appserver.io |
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*/ |
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class PropertyStreamFilter extends \php_user_filter |
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{ |
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/** |
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* The unique filter name. |
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* |
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* @var string |
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*/ |
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const NAME = 'appserver-io.properties.filter.property-stream-filter'; |
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/** |
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* The filter parameters. |
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* |
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* @var \AppserverIo\Properties\StreamFilterParams |
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*/ |
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public $params; |
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/** |
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* Returns the params. |
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* |
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* @return \AppserverIo\Properties\StreamFilterParams The params |
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*/ |
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public function getParams() |
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{ |
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return $this->params; |
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} |
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/** |
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* This method is called whenever data is read from or written to the attached |
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* stream (such as with fread() or fwrite()). |
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* |
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* @param resource $in A resource pointing to a bucket brigade which contains one or more bucket objects containing data to be filtered |
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* @param resource $out A resource pointing to a second bucket brigade into which your modified buckets should be placed |
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* @param integer $consumed Should be incremented by the length of the data which your filter reads in and alters |
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* @param boolean $closing If the stream is in the process of closing, the closing parameter will be set to TRUE |
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* |
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* @return integer Whether the filter succeeded or not |
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* @see php_user_filter::filter() |
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*/ |
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public function filter($in, $out, &$consumed, $closing) |
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{ |
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// load the properties from the params |
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$pattern = $this->getParams()->getPattern(); |
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$properties = $this->getParams()->getProperties(); |
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// stop processing if we can't find the properties |
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if ($properties == null) { |
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return PSFS_ERR_FATAL; |
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} |
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// while we can read from the stream |
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while ($bucket = stream_bucket_make_writeable($in)) { |
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// try to find and replace the variables |
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foreach ($properties->getKeys() as $propertyName) { |
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$bucket->data = str_replace( |
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sprintf($pattern, $propertyName), |
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$properties->getProperty($propertyName), |
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$bucket->data |
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); |
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} |
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// update the stream |
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$consumed += $bucket->datalen; |
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stream_bucket_append($out, $bucket); |
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} |
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// continue applying filters |
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return PSFS_PASS_ON; |
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} |
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} |
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appserver-io /
properties
