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<?php |
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namespace Consolidation\Config\Loader; |
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use Grasmash\Expander\Expander; |
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use Consolidation\Config\Util\ArrayUtil; |
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/** |
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* The config processor combines multiple configuration |
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* files together, and processes them as necessary. |
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*/ |
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class ConfigProcessor |
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{ |
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protected $processedConfig = []; |
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protected $unprocessedConfig = []; |
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protected $nameOfItemsToMerge = []; |
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protected $expander; |
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public function __construct($expander = null) |
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{ |
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$this->expander = $expander ?: new Expander(); |
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} |
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/** |
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* By default, string config items always REPLACE, not MERGE when added |
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* from different sources. This method will allow applications to alter |
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* this behavior for specific items so that strings from multiple sources |
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* will be merged together into an array instead. |
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*/ |
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public function useMergeStrategyForKeys($itemName) |
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{ |
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if (is_array($itemName)) { |
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$this->nameOfItemsToMerge = array_merge($this->nameOfItemsToMerge, $itemName); |
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return $this; |
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} |
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$this->nameOfItemsToMerge[] = $itemName; |
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return $this; |
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} |
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/** |
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* Extend the configuration to be processed with the |
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* configuration provided by the specified loader. |
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* |
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* @param ConfigLoaderInterface $loader |
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*/ |
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public function extend(ConfigLoaderInterface $loader) |
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{ |
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return $this->addFromSource($loader->export(), $loader->getSourceName()); |
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} |
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/** |
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* Extend the configuration to be processed with |
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* the provided nested array. |
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* |
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* @param array $data |
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*/ |
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public function add($data) |
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{ |
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$this->unprocessedConfig[] = $data; |
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return $this; |
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} |
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/** |
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* Extend the configuration to be processed with |
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* the provided nested array. Also record the name |
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* of the data source, if applicable. |
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* |
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* @param array $data |
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* @param string $source |
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*/ |
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protected function addFromSource($data, $source = '') |
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{ |
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if (empty($source)) { |
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return $this->add($data); |
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} |
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$this->unprocessedConfig[$source] = $data; |
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return $this; |
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} |
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/** |
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* Process all of the configuration that has been collected, |
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* and return a nested array. |
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* |
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* @return array |
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*/ |
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public function export($referenceArray = []) |
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{ |
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if (!empty($this->unprocessedConfig)) { |
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$this->processedConfig = $this->process( |
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$this->processedConfig, |
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$this->fetchUnprocessed(), |
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$referenceArray |
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); |
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} |
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return $this->processedConfig; |
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} |
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/** |
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* To aid in debugging: return the source of each configuration item. |
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* n.b. Must call this function *before* export and save the result |
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* if persistence is desired. |
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*/ |
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public function sources() |
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{ |
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$sources = []; |
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foreach ($this->unprocessedConfig as $sourceName => $config) { |
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if (!empty($sourceName)) { |
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$configSources = ArrayUtil::fillRecursive($config, $sourceName); |
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$sources = ArrayUtil::mergeRecursiveDistinct($sources, $configSources); |
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} |
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} |
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return $sources; |
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} |
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/** |
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* Get the configuration to be processed, and clear out the |
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* 'unprocessed' list. |
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* |
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* @return array |
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*/ |
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protected function fetchUnprocessed() |
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{ |
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$toBeProcessed = $this->unprocessedConfig; |
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$this->unprocessedConfig = []; |
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return $toBeProcessed; |
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} |
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/** |
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* Use a map-reduce to evaluate the items to be processed, |
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* and merge them into the processed array. |
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* |
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* @param array $processed |
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* @param array $toBeProcessed |
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* @return array |
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*/ |
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protected function process(array $processed, array $toBeProcessed, $referenceArray = []) |
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{ |
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$toBeReduced = array_map([$this, 'preprocess'], $toBeProcessed); |
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$reduced = array_reduce($toBeReduced, [$this, 'reduceOne'], $processed); |
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return $this->evaluate($reduced, $referenceArray); |
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} |
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/** |
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* Process a single configuration file from the 'to be processed' |
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* list. By default this is a no-op. Override this method to |
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* provide any desired configuration preprocessing, e.g. dot-notation |
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* expansion of the configuration keys, etc. |
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* |
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* @param array $config |
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* @return array |
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*/ |
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protected function preprocess(array $config) |
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{ |
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return $config; |
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} |
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/** |
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* Evaluate one item in the 'to be evaluated' list, and then |
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* merge it into the processed configuration (the 'carry'). |
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* |
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* @param array $processed |
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* @param array $config |
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* @return array |
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*/ |
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protected function reduceOne(array $processed, array $config) |
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{ |
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return ArrayUtil::mergeRecursiveSelect($processed, $config, $this->nameOfItemsToMerge); |
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} |
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/** |
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* Evaluate one configuration item. |
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* |
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* @param array $processed |
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* @param array $config |
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* @return array |
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*/ |
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protected function evaluate(array $config, $referenceArray = []) |
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{ |
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return $this->expander->expandArrayProperties( |
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$config, |
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$referenceArray |
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); |
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} |
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} |
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This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italy
is not defined by the methodfinale(...)
.The most likely cause is that the parameter was removed, but the annotation was not.