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<?php |
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declare(strict_types=1); |
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namespace Saxulum\ElasticSearchQueryBuilder\Generator; |
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use PhpParser\Node\Arg; |
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use PhpParser\Node\Expr; |
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use PhpParser\Node\Expr\Assign; |
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use PhpParser\Node\Expr\ConstFetch; |
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use PhpParser\Node\Expr\MethodCall; |
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use PhpParser\Node\Expr\New_; |
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use PhpParser\Node\Expr\Variable; |
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use PhpParser\Node\Name; |
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use PhpParser\Node\Scalar\DNumber; |
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use PhpParser\Node\Scalar\LNumber; |
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use PhpParser\Node\Scalar\String_; |
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use PhpParser\PrettyPrinter\Standard as PhpGenerator; |
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final class NodeGenerator |
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{ |
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/** |
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* @var PhpGenerator |
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*/ |
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private $phpGenerator; |
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/** |
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* @param PhpGenerator $phpGenerator |
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*/ |
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public function __construct(PhpGenerator $phpGenerator) |
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{ |
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$this->phpGenerator = $phpGenerator; |
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} |
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/** |
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* @param $query |
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* @return string |
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*/ |
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public function generateByJson($query): string |
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{ |
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$data = json_decode($query, false); |
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if (JSON_ERROR_NONE !== json_last_error()) { |
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throw new \InvalidArgumentException(sprintf('Message: %s, query: %s', json_last_error_msg(), $query)); |
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} |
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if ($data instanceof \stdClass) { |
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$expr = $this->appendChildrenToObjectNode($data); |
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} else { |
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$expr = $this->appendChildrenToArrayNode($data); |
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} |
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$code = $this->phpGenerator->prettyPrint([new Assign(new Variable('node'), $expr)]); |
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return $this->structureCode($code); |
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} |
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/** |
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* @param string $code |
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* @return string |
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*/ |
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private function structureCode(string $code): string |
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{ |
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$codeWithLinebreaks = str_replace('->add', "\n->add", substr($code, 0, -1)); |
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$lines = explode("\n", $codeWithLinebreaks); |
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$position = 0; |
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$structuredLines = []; |
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foreach ($lines as $i => $line) { |
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$lastStructuredLine = $structuredLines[count($structuredLines) - 1] ?? ''; |
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if (0 === strpos($line, '->add') && |
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false === strpos($lastStructuredLine, ' )') && |
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false === strpos($lastStructuredLine, 'ScalarNode')) { |
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$position++; |
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} |
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$lineLength = strlen($line); |
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$braceCount = 0; |
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while (')' === $line[--$lineLength]) { |
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$braceCount++; |
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} |
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$prefix = str_pad('', $position * 4); |
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if ($braceCount > 2) { |
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$structuredLines[] = $prefix . substr($line, 0, - ($braceCount - 2)); |
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} else { |
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$structuredLines[] = $prefix . $line; |
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} |
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while ($braceCount-- > 2) { |
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$position--; |
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$structuredLines[] = str_pad('', $position * 4) . ')'; |
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} |
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} |
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$structuredLines[count($structuredLines) - 1] .= ';'; |
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return implode("\n", $structuredLines); |
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} |
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/** |
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* @return Expr |
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*/ |
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private function createObjectNode(): Expr |
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{ |
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return new New_(new Name('ObjectNode')); |
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} |
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/** |
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* @return Expr |
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*/ |
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private function createArrayNode(): Expr |
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{ |
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return new New_(new Name('ArrayNode')); |
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} |
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/** |
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* @param string|float|int|bool|null $value |
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* @return Expr |
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*/ |
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View Code Duplication |
private function createScalarNode($value): Expr |
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{ |
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if (is_string($value)) { |
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$valueExpr = new String_($value); |
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} elseif (is_int($value)) { |
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$valueExpr = new LNumber($value); |
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} elseif (is_float($value)) { |
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$valueExpr = new DNumber($value); |
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} elseif (is_bool($value)) { |
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$valueExpr = new ConstFetch(new Name($value ? 'true' : 'false')); |
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} else { |
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$valueExpr = new ConstFetch(new Name('null')); |
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} |
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return new New_(new Name('ScalarNode'), [new Arg($valueExpr)]); |
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} |
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/** |
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* @param array $data |
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* @return Expr |
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*/ |
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private function appendChildrenToArrayNode(array $data) |
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{ |
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$expr = $this->createArrayNode(); |
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foreach ($data as $key => $value) { |
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View Code Duplication |
if ($value instanceof \stdClass) { |
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$nodeExpr = $this->createObjectNode(); |
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} elseif (is_array($value)) { |
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$nodeExpr = $this->createArrayNode(); |
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} else { |
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$nodeExpr = $this->createScalarNode($value); |
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} |
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View Code Duplication |
if ($value instanceof \stdClass) { |
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$nodeExpr = $this->appendChildrenToObjectNode($value); |
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} elseif (is_array($value)) { |
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$nodeExpr = $this->appendChildrenToArrayNode($value); |
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} |
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$expr = new MethodCall($expr, 'add', [new Arg($nodeExpr)]); |
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} |
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return $expr; |
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} |
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/** |
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* @param \stdClass $data |
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* @return Expr |
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*/ |
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private function appendChildrenToObjectNode(\stdClass $data) |
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{ |
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$expr = $this->createObjectNode(); |
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foreach ($data as $key => $value) { |
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View Code Duplication |
if ($value instanceof \stdClass) { |
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$nodeExpr = $this->createObjectNode(); |
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} elseif (is_array($value)) { |
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$nodeExpr = $this->createArrayNode(); |
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} else { |
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$nodeExpr = $this->createScalarNode($value); |
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} |
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View Code Duplication |
if ($value instanceof \stdClass) { |
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$nodeExpr = $this->appendChildrenToObjectNode($value); |
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} elseif (is_array($value)) { |
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$nodeExpr = $this->appendChildrenToArrayNode($value); |
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} |
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$expr = new MethodCall($expr, 'add', [new Arg(new String_($key)), new Arg($nodeExpr)]); |
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} |
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return $expr; |
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} |
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} |
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saxulum /
saxulum-elasticsearch-querybuilder
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.