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<?php |
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/** |
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* This file is part of the Code-Insight library. |
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* For the full copyright and license information, please view |
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* the LICENSE file that was distributed with this source code. |
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* |
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* @copyright Alexander Obuhovich <[email protected]> |
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* @link https://github.com/console-helpers/code-insight |
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*/ |
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namespace ConsoleHelpers\CodeInsight\BackwardsCompatibility\Checker; |
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use Aura\Sql\ExtendedPdoInterface; |
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use Doctrine\Common\Cache\CacheProvider; |
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abstract class AbstractChecker |
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{ |
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/** |
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* Source database. |
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* |
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* @var ExtendedPdoInterface |
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*/ |
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protected $sourceDatabase; |
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/** |
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* Target database. |
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* |
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* @var ExtendedPdoInterface |
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*/ |
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protected $targetDatabase; |
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/** |
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* Cache. |
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* |
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* @var CacheProvider |
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*/ |
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protected $cache; |
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/** |
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* Incidents. |
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* |
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* @var array |
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*/ |
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private $_incidents = array(); |
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/** |
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* AbstractChecker constructor. |
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* |
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* @param CacheProvider $cache Cache provider. |
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*/ |
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public function __construct(CacheProvider $cache) |
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{ |
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$this->cache = $cache; |
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} |
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/** |
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* Returns backwards compatibility checker name. |
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* |
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* @return string |
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*/ |
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abstract public function getName(); |
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/** |
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* Checks backwards compatibility and returns violations by category. |
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* |
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* @param ExtendedPdoInterface $source_db Source DB. |
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* @param ExtendedPdoInterface $target_db Target DB. |
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* |
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* @return array |
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*/ |
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public function check(ExtendedPdoInterface $source_db, ExtendedPdoInterface $target_db) |
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{ |
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$this->sourceDatabase = $source_db; |
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$this->targetDatabase = $target_db; |
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$this->doCheck(); |
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return array_filter($this->_incidents); |
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} |
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/** |
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* Collects backwards compatibility violations. |
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* |
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* @return void |
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*/ |
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abstract protected function doCheck(); |
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/** |
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* Builds string representation of a parameter. |
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* |
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* @param array $parameter_data Parameter data. |
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* |
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* @return string |
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*/ |
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protected function paramToString(array $parameter_data) |
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{ |
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if ( $parameter_data['HasType'] ) { |
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$type = $parameter_data['TypeName']; |
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} |
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elseif ( $parameter_data['IsArray'] ) { |
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$type = 'array'; |
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} |
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elseif ( $parameter_data['IsCallable'] ) { |
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$type = 'callable'; |
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} |
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else { |
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$type = $parameter_data['TypeClass']; |
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} |
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$hash_part = strlen($type) ? $type . ' ' : ''; |
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if ( $parameter_data['IsPassedByReference'] ) { |
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$hash_part .= '&$' . $parameter_data['Name']; |
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} |
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else { |
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$hash_part .= '$' . $parameter_data['Name']; |
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} |
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if ( $parameter_data['HasDefaultValue'] ) { |
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$hash_part .= ' = '; |
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if ( $parameter_data['DefaultConstant'] ) { |
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$hash_part .= $parameter_data['DefaultConstant']; |
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} |
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else { |
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$hash_part .= $this->decodeValue($parameter_data['DefaultValue']); |
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} |
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} |
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return $hash_part; |
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} |
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/** |
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* Determines if 2 param signatures are compatible. |
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* |
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* @param string $source_signature Source signature. |
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* @param string $target_signature Target signature. |
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* |
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* @return boolean |
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*/ |
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protected function isParamSignatureCompatible($source_signature, $target_signature) |
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{ |
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if ( $source_signature === $target_signature ) { |
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return true; |
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} |
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$source_params = $source_signature ? explode(', ', $source_signature) : array(); |
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$target_params = $target_signature ? explode(', ', $target_signature) : array(); |
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$source_param_count = count($source_params); |
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// Beginning of target signature doesn't match source signature. |
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if ( $source_params !== array_slice($target_params, 0, $source_param_count) ) { |
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return false; |
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} |
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$added_params = array_slice($target_params, $source_param_count); |
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// No new parameters added. |
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if ( !$added_params ) { |
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return true; |
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} |
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$is_compatible = true; |
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// When all added parameters are optional, then signature is compatible. |
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foreach ( $added_params as $added_param ) { |
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if ( strpos($added_param, '=') === false ) { |
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$is_compatible = false; |
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break; |
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} |
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} |
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return $is_compatible; |
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} |
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/** |
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* Decodes json-encoded PHP value. |
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* |
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* @param string $json_string JSON string. |
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* |
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* @return string |
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*/ |
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protected function decodeValue($json_string) |
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{ |
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$value = var_export(json_decode($json_string), true); |
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$value = str_replace(array("\t", "\n"), '', $value); |
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$value = str_replace('array (', 'array(', $value); |
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return $value; |
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} |
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/** |
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* Adds incident. |
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* |
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* @param string $type Incident type. |
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* @param string $element Element affected. |
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* @param string|null $old_value Old value. |
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* @param string|null $new_value New value. |
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* |
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* @return void |
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*/ |
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protected function addIncident($type, $element, $old_value = null, $new_value = null) |
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{ |
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$incident_record = array( |
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'type' => $type, |
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'element' => $element, |
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); |
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if ( isset($old_value) || isset($new_value) ) { |
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$incident_record['old'] = $old_value; |
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$incident_record['new'] = $new_value; |
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} |
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$this->_incidents[] = $incident_record; |
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} |
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/** |
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* Returns cache key valid for specific database only. |
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* |
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* @param ExtendedPdoInterface $db Database. |
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* @param string $cache_key Cache key. |
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* |
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* @return string |
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*/ |
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protected function getCacheKey(ExtendedPdoInterface $db, $cache_key) |
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{ |
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return sha1($db->getDsn()) . ':' . $cache_key; |
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} |
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} |
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console-helpers /
code-insight
