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<?php |
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/* this file is part of pipelines */ |
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namespace Ktomk\Pipelines\Utility; |
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use Exception; |
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use Ktomk\Pipelines\Cli\ArgsException; |
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use Ktomk\Pipelines\Cli\Streams; |
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use Ktomk\Pipelines\File\ParseException; |
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class ExceptionHandler |
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{ |
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/** |
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* @var bool |
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*/ |
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private $showStacktrace = false; |
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/** |
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* @var Help |
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*/ |
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private $help; |
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/** |
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* @var Streams |
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*/ |
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private $streams; |
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/** |
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* ExceptionHandler constructor. |
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* @param Streams $streams |
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* @param Help $help |
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* @param bool $showStacktrace |
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*/ |
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public function __construct(Streams $streams, Help $help, $showStacktrace) |
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{ |
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$this->streams = $streams; |
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$this->help = $help; |
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$this->showStacktrace = $showStacktrace; |
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} |
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/** |
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* @param Runnable $runnable |
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* @return mixed|void |
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*/ |
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public function handle(Runnable $runnable) |
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{ |
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try { |
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$status = $runnable->run(); |
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} catch (Exception $e) { |
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$status = $this->handleException($e); |
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} |
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return $status; |
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} |
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/** |
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* @param Exception $e |
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* @return int |
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*/ |
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private function handleException(Exception $e) |
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{ |
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$status = $e->getCode(); |
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$message = $e->getMessage(); |
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if ($this->isUnexpectedException($e)) { |
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// catch unexpected exceptions for user-friendly message |
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$status = 2; |
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$message = sprintf('fatal: %s', $e->getMessage()); |
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} |
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if (0 !== $status && '' !== $message) { |
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$this->error(sprintf('pipelines: %s', $message)); |
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} |
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if ($e instanceof ArgsException) { |
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$this->help->showUsage(); |
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} |
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if ($this->showStacktrace) { |
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$this->debugException($e); |
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} |
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return $status; |
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} |
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private function isUnexpectedException(Exception $e) |
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{ |
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return ( |
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!($e instanceof ArgsException) |
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&& !($e instanceof StatusException) |
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&& !($e instanceof ParseException) |
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); |
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} |
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private function debugException(Exception $e) |
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{ |
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for (; $e; $e = $e->getPrevious()) { |
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$this->error('--------'); |
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$this->error(sprintf("class....: %s", get_class($e))); |
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$this->error(sprintf("message..: %s", $e->getMessage())); |
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$this->error(sprintf("code.....: %s", $e->getCode())); |
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$this->error(sprintf("file.....: %s", $e->getFile())); |
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$this->error(sprintf("line.....: %s", $e->getLine())); |
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$this->error('backtrace:'); |
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$this->error($e->getTraceAsString()); |
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} |
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$this->error('--------'); |
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} |
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private function error($message) |
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{ |
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$this->streams->err( |
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sprintf("%s\n", $message) |
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); |
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} |
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} |
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ktomk /
pipelines
