Completed
Pull Request — master (#10)
by Nicolas
01:11
created

AbstractExtractor::addTransformer()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 4
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 1
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<?php
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namespace Smart\EtlBundle\Extractor;
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use Smart\EtlBundle\Transformer\TransformerInterface;
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/**
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 * Nicolas Bastien <[email protected]>
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 */
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abstract class AbstractExtractor
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{
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    /**
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     * @var TransformerInterface[]
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     */
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    protected $transformers = [];
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    /**
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     * @param TransformerInterface $transformer
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     * @return mixed
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     */
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    public function addTransformer(TransformerInterface $transformer)
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    {
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        $this->transformers[] = $transformer;
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    }
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    /**
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     * @param  array $data
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     * @return mixed
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     */
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    protected function transformData(array $data)
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    {
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        foreach ($this->transformers as $transformer) {
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            $data = $transformer->transform($data);
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            if (is_null($data)) {
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                //allow transformer to skip invalid data
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                return null;
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            }
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        }
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        return $data;
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    }
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}
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