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<?php |
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namespace Graze\DataDb\Export\Query; |
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use Graze\DataDb\QueryNodeInterface; |
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use Graze\DataFile\Format\FormatAwareInterface; |
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use Graze\DataFile\Format\FormatInterface; |
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use Graze\DataFile\Format\JsonFormat; |
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use Graze\DataFile\Helper\Builder\BuilderAwareInterface; |
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use Graze\DataFile\Helper\Builder\BuilderTrait; |
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use Graze\DataFile\Helper\FileHelper; |
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use Graze\DataFile\Helper\OptionalLoggerTrait; |
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use Graze\DataFile\IO\FileWriter; |
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use Graze\DataFile\Node\FileNodeInterface; |
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use Psr\Log\LogLevel; |
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class QueryExporter implements QueryExporterInterface, BuilderAwareInterface |
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{ |
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use BuilderTrait; |
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use OptionalLoggerTrait; |
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use FileHelper; |
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const PATH_TMP = '/tmp/export/query/'; |
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/** @var FileNodeInterface */ |
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private $file; |
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/** @var FormatInterface|null */ |
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private $format; |
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/** |
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* QueryExporter constructor. |
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* |
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* @param FileNodeInterface|null $file |
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* @param FormatInterface|null $format |
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*/ |
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public function __construct( |
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FileNodeInterface $file = null, |
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FormatInterface $format = null |
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) { |
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$this->file = $file; |
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$this->format = $format; |
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} |
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/** |
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* Export a table to something |
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* |
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* @param QueryNodeInterface $query |
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* |
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* @return FileNodeInterface |
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*/ |
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public function export(QueryNodeInterface $query) |
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{ |
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$this->file = $this->file ?: $this->getTemporaryFile(static::PATH_TMP); |
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if (is_null($this->format)) { |
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if ($this->file instanceof FormatAwareInterface |
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&& $this->file->getFormatType() |
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) { |
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$this->format = $this->file->getFormat(); |
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} else { |
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$this->setDefaultFormat(); |
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} |
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} |
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$writer = $this->getBuilder()->build(FileWriter::class, $this->file, $this->format); |
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$this->log(LogLevel::INFO, "Exporting generic query to file: {file}", ['file' => $this->file]); |
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$writer->insertAll($query->fetch()); |
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return $this->file; |
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} |
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/** |
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* Sets a default format to use |
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*/ |
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private function setDefaultFormat() |
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{ |
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$this->format = $this->getBuilder()->build( |
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JsonFormat::class, |
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[JsonFormat::OPTION_FILE_TYPE => JsonFormat::JSON_FILE_TYPE_EACH_LINE] |
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); |
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if ($this->file instanceof FormatAwareInterface) { |
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$this->file->setFormat($this->format); |
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} |
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} |
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} |
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graze /
data-db
