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<?php |
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namespace Knik\Binn\Decoder\Containers; |
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use Knik\Binn\Binn; |
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use Knik\Binn\Contracts\BinnValueDecoder; |
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use Knik\Binn\Decoder\Decoder; |
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use Knik\Binn\Decoder\DecoderCollection; |
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use Knik\Binn\Decoder\Unpacker; |
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class BinnMapDecoder extends Decoder implements BinnValueDecoder |
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{ |
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/** @var DecoderCollection */ |
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private $decoders; |
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public function __construct(DecoderCollection $decoders) |
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{ |
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$this->decoders = $decoders; |
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} |
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public function decode(string $bytes) |
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{ |
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$readPosition = 1; |
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$totalSize = Unpacker::unpackSize8($bytes[$readPosition]); |
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if ($totalSize > Binn::BINN_MAX_ONE_BYTE_SIZE) { |
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$totalSize = Unpacker::unpackSize32(substr($bytes, $readPosition, 4)); |
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$readPosition += 4; |
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} else { |
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$readPosition++; |
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} |
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$totalItems = Unpacker::unpackSize8($bytes[$readPosition]); |
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if ($totalItems > Binn::BINN_MAX_ONE_BYTE_SIZE) { |
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$totalItems = Unpacker::unpackSize32(substr($bytes, $readPosition, 4)); |
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$readPosition += 4; |
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} else { |
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$readPosition++; |
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} |
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$readedItems = 0; |
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$result = []; |
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while ($readedItems < $totalItems && $readPosition < $totalSize) { |
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$keyValue = Unpacker::unpackInt32(substr($bytes, $readPosition, 4)); |
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$readPosition += 4; |
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$readSize = $this->readSizeWithType(substr($bytes, $readPosition, 4)); |
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$innerStorage = substr($bytes, $readPosition, $readSize); |
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/** @var BinnValueDecoder $decoder */ |
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foreach ($this->decoders->getAll() as $decoder) { |
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if ($decoder->supportsDecoding($innerStorage)) { |
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$result[$keyValue] = $decoder->decode($innerStorage); |
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break; |
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} |
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} |
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$readPosition += $readSize; |
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$readedItems++; |
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} |
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return $result; |
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} |
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public function supportsDecoding(string $bytes): bool |
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{ |
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$type = $this->detectType($bytes); |
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return $type === Binn::BINN_MAP; |
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} |
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} |
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et-nik /
binn-php
