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<?php |
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namespace Yuloh\Stream; |
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abstract class AbstractStreamFactory implements StreamFactoryInterface |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function create($resource = null) |
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{ |
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switch (gettype($resource)) { |
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case 'NULL': |
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return $this->forNull(); |
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case 'integer': |
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case 'double': |
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case 'string': |
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return $this->forString($resource); |
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case 'object': |
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return $this->forObject($resource); |
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case 'resource': |
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return $this->forResource($resource); |
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2 |
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default: |
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throw new \InvalidArgumentException( |
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sprintf( |
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'Unable to create stream for type "%s"', |
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gettype($resource) |
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) |
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); |
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} |
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} |
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/** |
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* @param resource $resource |
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* |
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* @return \Yuloh\Stream\Stream |
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*/ |
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abstract protected function forResource($resource); |
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/** |
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* @param object $object |
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* |
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* @return \Yuloh\Stream\Stream |
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*/ |
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protected function forObject($object) |
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{ |
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if (method_exists($object, '__toString')) { |
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return $this->forString((string) $object); |
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} |
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4 |
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if ($object instanceof \JsonSerializable) { |
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return $this->forString(json_encode($object)); |
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} |
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throw new \InvalidArgumentException(sprintf('Unable to create stream for "%s"', get_class($object))); |
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} |
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/** |
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* @param string $string |
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* |
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* @return \Yuloh\Stream\Stream |
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*/ |
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protected function forString($string) |
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{ |
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$fp = fopen('php://temp', 'r+'); |
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if ($string !== '') { |
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fwrite($fp, $string); |
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rewind($fp); |
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} |
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return $this->forResource($fp); |
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} |
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/** |
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* @return \Yuloh\Stream\Stream |
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*/ |
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2 |
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protected function forNull() |
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{ |
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return $this->forResource(fopen('php://temp', 'r+')); |
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} |
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} |
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yuloh /
stream
