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<?php |
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/* this file is part of pipelines */ |
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namespace Ktomk\Pipelines\Value; |
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use Countable; |
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use InvalidArgumentException; |
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/** |
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* Properties value object (named set) |
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* |
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* @package Ktomk\Pipelines\Value |
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*/ |
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class Properties implements Countable |
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{ |
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/** |
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* @var array |
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*/ |
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private $properties = array(); |
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/** |
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* import properties from an array |
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* |
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* @param array $array |
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*/ |
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public function importPropertiesArray(array $array) |
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{ |
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foreach ($array as $key => $value) { |
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$this->properties[$key] = $value; |
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} |
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} |
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/** |
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* export a set of named entries as array |
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* |
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* @param array $keys named entries to export in two forms: |
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* 1. array of strings |
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* 2. array of two arrays of string, first is for |
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* required, second for optional entries |
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* @return array export product |
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*/ |
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public function export(array $keys) |
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{ |
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if ( |
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2 === count($keys) |
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&& 2 === count(array_filter($keys, 'is_array')) |
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&& array(0, 1) === array_keys($keys) |
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) { |
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list($required, $optional) = $keys; |
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$this->missingKeys($required); |
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$keys = array_merge($required, $optional); |
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} |
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return $this->exportPropertiesByName($keys); |
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} |
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/** |
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* obtain a list of keys that are not available in properties |
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* |
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* @param array $keys |
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*/ |
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private function missingKeys(array $keys) |
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{ |
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$missing = array_diff_key(array_flip($keys), $this->properties); |
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if (!empty($missing)) { |
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throw new InvalidArgumentException(sprintf( |
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'property/ies "%s" required', |
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implode('", "', array_keys($missing)) |
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)); |
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} |
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} |
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/** |
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* export properties by name(s) |
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* |
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* properties not set are not exported |
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* |
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* @param array $keys |
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* @param array $export [optional] array to extend |
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* @return array w/ exported properties |
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*/ |
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public function exportPropertiesByName(array $keys, array $export = array()) |
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{ |
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foreach ($keys as $key) { |
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if (array_key_exists($key, $this->properties)) { |
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$export[$key] = $this->properties[$key]; |
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} |
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} |
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return $export; |
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} |
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/** |
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* has all named entities |
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* |
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* @param array|string $keys ... |
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* @return bool |
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*/ |
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public function has($keys) |
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{ |
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$args = func_get_args(); |
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$allKeys = call_user_func_array( |
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array('Ktomk\Pipelines\Lib', 'merge'), |
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$args |
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); |
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foreach ($allKeys as $key) { |
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if (!array_key_exists($key, $this->properties)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* import named entries from array as properties |
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* |
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* @param array $array to import from |
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* @param array $keys named entries to import |
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* @return array passed in array with the imported entries removed |
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*/ |
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public function import(array $array, array $keys) |
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{ |
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foreach ($keys as $key) { |
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if (array_key_exists($key, $array)) { |
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$this->properties[$key] = $array[$key]; |
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unset($array[$key]); |
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} |
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} |
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return $array; |
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} |
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/** |
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* @return array |
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*/ |
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2 |
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public function toArray() |
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{ |
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return $this->properties; |
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} |
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/** Countable **/ |
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/** |
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* Count elements of an object |
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* @link http://php.net/manual/en/countable.count.php |
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* @return int The custom count as an integer. |
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*/ |
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2 |
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public function count() |
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{ |
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return count($this->properties); |
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} |
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} |
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ktomk /
pipelines
