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<?php |
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namespace Scientist; |
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use Exception; |
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/** |
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* Class Executor |
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* |
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* @package \Scientist |
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*/ |
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class Machine |
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{ |
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/** |
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* The callback to execute. |
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* |
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* @var callable |
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*/ |
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protected $callback; |
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/** |
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* Parameters to provide to the callback. |
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* |
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* @var array |
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*/ |
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protected $params = []; |
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/** |
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* Should exceptions be muted. |
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* |
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* @var boolean |
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*/ |
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protected $muted = false; |
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/** |
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* The result instance. |
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* |
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* @var \Scientist\Result |
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*/ |
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protected $result; |
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/** |
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* Inject machine dependencies. |
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* |
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* @param callable $callback |
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* @param array $params |
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* @param boolean $muted |
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*/ |
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public function __construct(callable $callback, array $params = [], $muted = false) |
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{ |
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$this->callback = $callback; |
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$this->params = $params; |
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$this->muted = $muted; |
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$this->result = new Result; |
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} |
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/** |
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* Execute the callback and retrieve a result. Any output from |
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* echo commands will be intercepted and stored in the result. |
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* |
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* @return \Scientist\Result |
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*/ |
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public function executeQuietly() |
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{ |
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ob_start(); |
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$this->execute(); |
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ob_end_clean(); |
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return $this->result; |
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} |
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/** |
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* Execute the callback and retrieve a result. Any output from |
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* echo commands will be output as normal. |
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* |
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* @return Result |
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*/ |
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public function executeLoudly() |
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{ |
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ob_start(); |
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$this->execute(); |
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ob_end_flush(); |
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return $this->result; |
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} |
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/** |
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* Set values before callback is executed. |
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* |
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* @return void |
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*/ |
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protected function setStartValues() |
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{ |
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$this->result->setStartTime(microtime(true)); |
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$this->result->setStartMemory(memory_get_usage()); |
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} |
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/** |
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* Execute the callback with parameters. |
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* |
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* @return void |
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*/ |
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protected function executeCallback() |
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{ |
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if ($this->muted) { |
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return $this->executeMutedCallback(); |
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} |
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$this->result->setValue(call_user_func_array($this->callback, $this->params)); |
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} |
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/** |
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* Execute the callback, but swallow exceptions. |
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* |
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* @return void |
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*/ |
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protected function executeMutedCallback() |
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{ |
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try { |
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$this->result->setValue(call_user_func_array($this->callback, $this->params)); |
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} catch (Exception $exception) { |
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$this->result->setException($exception); |
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$this->result->setValue(null); |
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} |
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} |
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/** |
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* Set values after the callback has executed. |
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* |
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* @return void |
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*/ |
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protected function setEndValues() |
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{ |
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$this->result->setEndTime(microtime(true)); |
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$this->result->setEndMemory(memory_get_usage()); |
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} |
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/** |
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* Flushes & cleans the buffer and adds this to the result. |
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* |
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* @return void |
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*/ |
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protected function addOutputBufferToResult() |
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{ |
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$echoedOutput = ob_get_contents(); |
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$this->result->setEchoValue($echoedOutput); |
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} |
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/** |
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* Execute the callback and build the result |
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* |
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* @return void |
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*/ |
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protected function execute() |
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{ |
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$this->setStartValues(); |
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$this->executeCallback(); |
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$this->setEndValues(); |
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$this->addOutputBufferToResult(); |
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} |
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} |
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daylerees /
scientist
