JsonReader::current()   A
last analyzed

Complexity

Conditions 2
Paths 2

Size

Total Lines 8

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 8
rs 10
c 0
b 0
f 0
cc 2
nc 2
nop 0
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<?php
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/*
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 * This file is part of the ONGR package.
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 *
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 * (c) NFQ Technologies UAB <[email protected]>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace ONGR\ElasticsearchBundle\Service\Json;
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use ONGR\ElasticsearchBundle\Service\IndexService;
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use Symfony\Component\OptionsResolver\OptionsResolver;
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/**
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 * Reads records one by one.
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 *
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 * Sample input:
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 * <p>
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 * [
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 * {"count":2},
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 * {"_id":"doc1","title":"Document 1"},
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 * {"_id":"doc2","title":"Document 2"}
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 * ]
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 * </p>
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 */
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class JsonReader implements \Countable, \Iterator
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{
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    private $filename;
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    private $handle;
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    private $key = 0;
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    private $currentLine;
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    private $metadata;
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    private $index;
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    private $optionsResolver;
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    private $options;
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    public function __construct(IndexService $index, string $filename, array $options = [])
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    {
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        $this->index = $index;
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        $this->filename = $filename;
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        $this->options = $options;
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    }
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    /**
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     * Destructor. Closes file handler if open.
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     */
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    public function __destruct()
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    {
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        if ($this->handle !== null) {
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            @fclose($this->handle);
0 ignored issues
show
Security Best Practice introduced by
It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended.

If you suppress an error, we recommend checking for the error condition explicitly:

// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
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        }
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    }
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    public function getIndex(): IndexService
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    {
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        return $this->index;
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    }
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    protected function getFileHandler()
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    {
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        //Make sure the gzip option is resolved from a filename.
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        if ($this->handle === null) {
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            $isGzip = array_key_exists('gzip', $this->options);
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            $filename = !$isGzip?
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                $this->filename:
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                sprintf('compress.zlib://%s', $this->filename);
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            $fileHandler = @fopen($filename, 'r');
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            if ($fileHandler === false) {
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                throw new \LogicException('Can not open file.');
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            }
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            $this->handle = $fileHandler;
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        }
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        return $this->handle;
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    }
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    protected function readMetadata()
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    {
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        if ($this->metadata !== null) {
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            return;
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        }
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        $line = fgets($this->getFileHandler());
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        if (trim($line) !== '[') {
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            throw new \InvalidArgumentException('Given file does not match expected pattern.');
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        }
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        $line = trim(fgets($this->getFileHandler()));
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        $this->metadata = json_decode(rtrim($line, ','), true);
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    }
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    protected function readLine()
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    {
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        $buffer = '';
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        while ($buffer === '') {
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            $buffer = fgets($this->getFileHandler());
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            if ($buffer === false) {
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                $this->currentLine = null;
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                return;
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            }
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            $buffer = trim($buffer);
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        }
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        if ($buffer === ']') {
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            $this->currentLine = null;
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            return;
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        }
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        $data = json_decode(rtrim($buffer, ','), true);
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        $this->currentLine = $this->getOptionsResolver()->resolve($data);
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    }
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    protected function configureResolver(OptionsResolver $resolver)
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    {
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        $resolver
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            ->setRequired(['_id', '_source'])
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            ->setDefaults(['_score' => null, 'fields' => []])
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            ->addAllowedTypes('_id', ['integer', 'string'])
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            ->addAllowedTypes('_source', 'array')
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            ->addAllowedTypes('fields', 'array');
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    }
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    public function current()
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    {
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        if ($this->currentLine === null) {
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            $this->readLine();
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        }
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        return $this->currentLine;
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    }
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    public function next()
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    {
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        $this->readLine();
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        $this->key++;
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    }
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    public function key()
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    {
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        return $this->key;
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    }
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    public function valid()
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    {
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        return !feof($this->getFileHandler()) && $this->currentLine;
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    }
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    public function rewind()
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    {
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        rewind($this->getFileHandler());
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        $this->metadata = null;
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        $this->readMetadata();
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        $this->readLine();
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    }
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    public function count()
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    {
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        $metadata = $this->getMetadata();
0 ignored issues
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Bug introduced by
Are you sure the assignment to $metadata is correct as $this->getMetadata() (which targets ONGR\ElasticsearchBundle...onReader::getMetadata()) seems to always return null.

This check looks for function or method calls that always return null and whose return value is assigned to a variable.

class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();

The method getObject() can return nothing but null, so it makes no sense to assign that value to a variable.

The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.

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        if (!isset($metadata['count'])) {
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            throw new \LogicException('Given file does not contain count of documents.');
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        }
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        return $metadata['count'];
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    }
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    public function getMetadata()
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    {
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        $this->readMetadata();
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        return $this->metadata;
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    }
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    private function getOptionsResolver(): OptionsResolver
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    {
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        if (!$this->optionsResolver) {
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            $this->optionsResolver = new OptionsResolver();
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            $this->configureResolver($this->optionsResolver);
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        }
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        return $this->optionsResolver;
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    }
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}
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