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<?php |
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namespace Scientist; |
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use Scientist\Matchers\Matcher; |
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/** |
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* Class Intern |
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* |
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* Interns do all the hard work, naturally. They'll execute an experiment within |
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* the Laboratory, and record the results. |
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* |
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* @package \Scientist |
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*/ |
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class Intern |
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{ |
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/** |
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* Run an experiment, and retrieve the result. |
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* |
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* @param \Scientist\Experiment $experiment |
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* |
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* @return \Scientist\Report|\Scientist\Report[] |
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*/ |
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public function run(Experiment $experiment) |
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{ |
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$control = $this->runControl($experiment); |
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$trials = $this->runTrials($experiment); |
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if (is_array($control)) { |
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$reports = []; |
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foreach ($control as $key => $control_item) { |
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$this->determineMatches( |
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$experiment->getMatcher(), |
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$control_item, |
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$trials, |
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$key |
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); |
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$reports[] = new Report($experiment->getName(), $control_item, $trials); |
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} |
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return $reports; |
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} else { |
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$this->determineMatches($experiment->getMatcher(), $control, $trials); |
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return new Report($experiment->getName(), $control, $trials); |
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} |
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} |
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/** |
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* Run the control callback, and record its execution state. |
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* |
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* @param \Scientist\Experiment $experiment |
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* |
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* @return \Scientist\Result|\Scientist\Result[] |
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*/ |
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protected function runControl(Experiment $experiment) |
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{ |
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if (count($experiment->getParams()) |
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=== count($experiment->getParams(), COUNT_RECURSIVE)) { |
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return (new Machine( |
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$experiment->getControl(), |
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$experiment->getParams() |
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))->execute(); |
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View Code Duplication |
} else { |
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$executions = []; |
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foreach ($experiment->getParams()[0] as $individual_params) { |
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$executions[] = (new Machine( |
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$experiment->getControl(), |
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$individual_params |
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))->execute(); |
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} |
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return $executions; |
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} |
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} |
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/** |
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* Run trial callbacks and record their execution state. |
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* |
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* @param \Scientist\Experiment $experiment |
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* |
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* @return \Scientist\Result[] |
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*/ |
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protected function runTrials(Experiment $experiment) |
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{ |
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$executions = []; |
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foreach ($experiment->getTrials() as $name => $trial) { |
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if (count($experiment->getParams()) |
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=== count($experiment->getParams(), COUNT_RECURSIVE)) { |
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$executions[$name] = (new Machine( |
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$trial, |
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$experiment->getParams(), |
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true |
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))->execute(); |
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View Code Duplication |
} else { |
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foreach ($experiment->getParams()[0] as $individual_params) { |
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$executions[$name][] = (new Machine( |
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$trial, |
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$individual_params, |
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true |
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))->execute(); |
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} |
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} |
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} |
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return $executions; |
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} |
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/** |
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* Determine whether trial results match the control. |
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* |
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* @param \Scientist\Matchers\Matcher $matcher |
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* @param \Scientist\Result $control |
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* @param \Scientist\Result[] $trials |
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* @param int|null $key |
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*/ |
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protected function determineMatches( |
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Matcher $matcher, |
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Result $control, |
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array $trials = [], |
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$key = null |
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) { |
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foreach ($trials as $trial) { |
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if ($key !== null) { |
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if ($matcher->match($control->getValue(), $trial[$key]->getValue())) { |
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$trial[$key]->setMatch(true); |
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} |
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} else { |
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if ($matcher->match($control->getValue(), $trial->getValue())) { |
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$trial->setMatch(true); |
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} |
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} |
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} |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.