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<?php |
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namespace Robo\Symfony; |
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use Symfony\Component\Console\Style\SymfonyStyle; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Output\OutputInterface; |
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/** |
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* IOStorage insures that a single common style object is |
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* used by all IOAware classes. |
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*/ |
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class IOStorage |
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{ |
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/** |
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* @var \Symfony\Component\Console\Style\SymfonyStyle |
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*/ |
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protected $io; |
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/** |
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* @var \Symfony\Component\Console\Input\InputInterface |
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*/ |
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protected $input; |
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/** |
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* @var \Symfony\Component\Console\Output\OutputInterface |
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*/ |
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protected $output; |
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/** |
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* @var string |
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*/ |
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protected $styleClass = '\Symfony\Component\Console\Style\SymfonyStyle'; |
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public function clear() |
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{ |
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$this->input = null; |
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$this->output = null; |
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$this->io = null; |
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} |
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/** |
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* setStyleClass sets a new style class to use. |
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* |
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* @param string $styleClass Name of class to instantiate when style object |
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* is requested. Must be a subclass of SymfonyStyle. |
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*/ |
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public function setStyleClass($styleClass) |
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{ |
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$this->styleClass = $styleClass; |
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$this->recreate(); |
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} |
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/** |
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* hasStyle indicates whether there is a cached style available |
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* |
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* @return bool |
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*/ |
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public function hasStyle() |
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{ |
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return !empty($this->io); |
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} |
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/** |
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* create will instantiate a new style instance, replacing what was |
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* there before. |
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* |
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* @param InputInterface $input |
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* @param OutputInterface $output |
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* @return SymfonyStyle |
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*/ |
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public function create(InputInterface $input, OutputInterface $output) |
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{ |
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$this->input = $input; |
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$this->output = $output; |
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return $this->instantiate(); |
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} |
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/** |
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* recreate will make a new style object iff we have cached $input |
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* and $output objects. Otherwise it clears the cached style object. |
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*/ |
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protected function recreate() |
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{ |
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if (!empty($this->input) && !empty($this->output)) { |
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return $this->instantiate(); |
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} |
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$this->io = null; |
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return null; |
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} |
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/** |
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* instantiate will make a new style object from the cached input and |
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* output objects. |
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*/ |
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protected function instantiate() |
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{ |
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$this->io = new $this->styleClass($this->input, $this->output); |
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return $this->cached(); |
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} |
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/** |
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* get will return the cached style object, if it exists; otherwise, |
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* it will create and cache a new style object using the provided |
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* input and output objects. |
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* |
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* @param InputInterface $input |
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* @param OutputInterface $output |
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* @return SymfonyStyle |
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*/ |
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public function get(InputInterface $input, OutputInterface $output) |
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{ |
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if (!$this->hasStyle()) { |
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$this->create($input, $output); |
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} |
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return $this->cached(); |
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} |
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/** |
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* cached returns the cached style object, or null if none is available. |
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* |
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* @return SymfonyStyle|null |
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*/ |
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public function cached() |
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{ |
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return $this->io; |
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} |
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} |
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consolidation /
robo
