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<?php namespace Comodojo\Cache\Components; |
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use \Comodojo\Cache\Traits\FlapIntervalTrait; |
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use \Exception; |
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use \FilterIterator; |
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/** |
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* @package Comodojo Cache |
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* @author Marco Giovinazzi <[email protected]> |
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* @license MIT |
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* |
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* LICENSE: |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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class AbstractStackManager extends FilterIterator { |
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use FlapIntervalTrait; |
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public function accept() { |
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$provider = $this->getInnerIterator()->current(); |
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$provider = $provider[0]; |
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$status = $provider->getState(); |
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if ( |
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$status === $provider::CACHE_ERROR && |
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date_create('now')->diff($provider->getStateTime())->format('%s') > $this->getFlapInterval() |
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) { |
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return $provider->test(); |
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} |
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return $status == $provider::CACHE_SUCCESS ? true : false; |
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} |
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public function genericAdd($provider, $weight) { |
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$pools = $this->getInnerIterator(); |
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$id = $provider->getId(); |
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$pools[$id] = [$provider, $weight]; |
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} |
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public function remove($id) { |
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$pools = $this->getInnerIterator(); |
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if ( isset($pools[$id]) ) { |
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unset($pools[$id]); |
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return true; |
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} |
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throw new Exception("Provider $id not registered into the stack"); |
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} |
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public function get($id) { |
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$pools = $this->getInnerIterator(); |
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if ( isset($pools[$id]) ) return $pools[$id][0]; |
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throw new Exception("Provider $id not registered into the stack"); |
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} |
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public function getAll($enabled = false) { |
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$result = []; |
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if ( $enabled === true ) { |
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foreach ( $this as $id => $provider ) $result[$id] = $provider[0]; |
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} else { |
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foreach ( $this->getInnerIterator() as $id => $provider ) $result[$id] = $provider[0]; |
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} |
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return $result; |
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} |
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public function getCurrent() { |
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$current = $this->current(); |
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return $current[0]; |
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} |
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public function has($id) { |
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$pools = $this->getInnerIterator(); |
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return isset($pools[$id]); |
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} |
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public function getRandomProvider() { |
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$stack = $this->getAll(true); |
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$rand = array_rand($stack); |
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return $rand === null ? null : $stack[$rand]; |
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} |
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public function getFirstProvider() { |
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$this->rewind(); |
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$current = $this->current(); |
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return $current === null ? null : $current[0]; |
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// $providers = $this->getAll(); |
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// return current($providers); |
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} |
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public function getLastProvider() { |
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$this->rewind(); |
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$providers = $this->getAll(true); |
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$provider = end($providers); |
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return $provider; |
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} |
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public function getHeavyProvider() { |
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$providers = $this->getAll(true); |
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if ( count($providers) === 0 ) return null; |
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$weights = $this->getWeights(); |
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asort($weights); |
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end($weights); |
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return $providers[key($weights)]; |
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} |
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private function getWeights() { |
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$result = []; |
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foreach ( $this as $id => $provider ) $result[$id] = $provider[1]; |
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return $result; |
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} |
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} |
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comodojo /
cache
