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decoupling IteratorQuery into new simplified Traits
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| <?php | ||
| /** | ||
| * Bakame.csv - A lightweight CSV Coder/Decoder library | ||
| * | ||
| * @author Ignace Nyamagana Butera <[email protected]> | ||
| * @copyright 2014 Ignace Nyamagana Butera | ||
| * @link https://github.com/nyamsprod/Bakame.csv | ||
| * @license http://opensource.org/licenses/MIT | ||
| * @version 4.2.1 | ||
| * @package Bakame.csv | ||
| * | ||
| * MIT LICENSE | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining | ||
| * a copy of this software and associated documentation files (the | ||
| * "Software"), to deal in the Software without restriction, including | ||
| * without limitation the rights to use, copy, modify, merge, publish, | ||
| * distribute, sublicense, and/or sell copies of the Software, and to | ||
| * permit persons to whom the Software is furnished to do so, subject to | ||
| * the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be | ||
| * included in all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | ||
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | ||
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| */ | ||
| namespace Bakame\Csv\Iterator; | ||
|
|
||
| use CallbackFilterIterator; | ||
| use Iterator; | ||
|
|
||
| /** | ||
| * A Trait to filter Iterators | ||
| * | ||
| * @package Bakame.csv | ||
| * @since 4.2.1 | ||
| * | ||
| */ | ||
| trait IteratorFilter | ||
| { | ||
| /** | ||
| * Callable function to filter the iterator | ||
| * | ||
| * @var callable | ||
| */ | ||
| private $filter; | ||
|
|
||
| /** | ||
| * Set the Iterator filter method | ||
| * | ||
| * @param callable $filter | ||
| * | ||
| * @return self | ||
| */ | ||
| public function setFilter(callable $filter) | ||
| { | ||
| $this->filter = $filter; | ||
|
|
||
| return $this; | ||
| } | ||
|
|
||
| /** | ||
| * Filter the Iterator | ||
| * | ||
| * @param \Iterator $iterator | ||
| * | ||
| * @return \CallbackFilterIterator | ||
| */ | ||
| protected function applyFilter($iterator) | ||
| { | ||
| if (! $this->filter) { | ||
| return $iterator; | ||
| } | ||
| $iterator = new CallbackFilterIterator($iterator, $this->filter); | ||
| $this->filter = null; | ||
|
|
||
| return $iterator; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| <?php | ||
| /** | ||
| * Bakame.csv - A lightweight CSV Coder/Decoder library | ||
| * | ||
| * @author Ignace Nyamagana Butera <[email protected]> | ||
| * @copyright 2014 Ignace Nyamagana Butera | ||
| * @link https://github.com/nyamsprod/Bakame.csv | ||
| * @license http://opensource.org/licenses/MIT | ||
| * @version 4.2.1 | ||
| * @package Bakame.csv | ||
| * | ||
| * MIT LICENSE | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining | ||
| * a copy of this software and associated documentation files (the | ||
| * "Software"), to deal in the Software without restriction, including | ||
| * without limitation the rights to use, copy, modify, merge, publish, | ||
| * distribute, sublicense, and/or sell copies of the Software, and to | ||
| * permit persons to whom the Software is furnished to do so, subject to | ||
| * the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be | ||
| * included in all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | ||
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | ||
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| */ | ||
| namespace Bakame\Csv\Iterator; | ||
|
|
||
| use InvalidArgumentException; | ||
| use Iterator; | ||
| use LimitIterator; | ||
|
|
||
| /** | ||
| * A Trait to Set a LimitIterator object | ||
| * | ||
| * @package Bakame.csv | ||
| * @since 4.2.1 | ||
| * | ||
| */ | ||
| trait IteratorInterval | ||
| { | ||
| /** | ||
| * iterator Offset | ||
| * | ||
| * @var integer | ||
| */ | ||
| private $offset = 0; | ||
|
|
||
| /** | ||
| * iterator maximum length | ||
| * | ||
| * @var integer | ||
| */ | ||
| private $limit = -1; | ||
|
|
||
| /** | ||
| * Set LimitIterator Offset | ||
| * | ||
| * @param $offset | ||
| * | ||
| * @return self | ||
| */ | ||
| public function setOffset($offset) | ||
| { | ||
| if (false === filter_var($offset, FILTER_VALIDATE_INT, ['options' => ['min_range' => 0]])) { | ||
| throw new InvalidArgumentException('the offset must be a positive integer or 0'); | ||
| } | ||
| $this->offset = $offset; | ||
|
|
||
| return $this; | ||
| } | ||
|
|
||
| /** | ||
| * Set LimitInterator Count | ||
| * | ||
| * @param integer $limit | ||
| * | ||
| * @return self | ||
| */ | ||
| public function setLimit($limit) | ||
| { | ||
| if (false === filter_var($limit, FILTER_VALIDATE_INT, ['options' => ['min_range' => -1]])) { | ||
| throw new InvalidArgumentException('the limit must an integer greater or equals to -1'); | ||
| } | ||
| $this->limit = $limit; | ||
|
|
||
| return $this; | ||
| } | ||
|
|
||
| /** | ||
| * Sort the Iterator | ||
| * | ||
| * @param \Iterator $iterator | ||
| * | ||
| * @return \LimitIterator | ||
| */ | ||
| protected function applyInterval(Iterator $iterator) | ||
| { | ||
| if (0 == $this->offset && -1 == $this->limit) { | ||
| return $iterator; | ||
| } | ||
| $offset = $this->offset; | ||
| $limit = -1; | ||
| if ($this->limit > 0) { | ||
| $limit = $this->limit; | ||
| } | ||
| $this->limit = -1; | ||
| $this->offset = 0; | ||
|
|
||
| return new LimitIterator($iterator, $offset, $limit); | ||
| } | ||
| } |
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