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<?php
declare(strict_types=1);
namespace MaxMind\Db\Reader;
/**
* This class provides the metadata for the MaxMind DB file.
*/
class Metadata
{
/**
* This is an unsigned 16-bit integer indicating the major version number
* for the database's binary format.
*
* @var int
*/
public $binaryFormatMajorVersion;
/**
* This is an unsigned 16-bit integer indicating the minor version number
* for the database's binary format.
*
* @var int
*/
public $binaryFormatMinorVersion;
/**
* This is an unsigned 64-bit integer that contains the database build
* timestamp as a Unix epoch value.
*
* @var int
*/
public $buildEpoch;
/**
* This is a string that indicates the structure of each data record
* associated with an IP address. The actual definition of these
* structures is left up to the database creator.
*
* @var string
*/
public $databaseType;
/**
* This key will always point to a map (associative array). The keys of
* that map will be language codes, and the values will be a description
* in that language as a UTF-8 string. May be undefined for some
* databases.
*
* @var array
*/
public $description;
/**
* This is an unsigned 16-bit integer which is always 4 or 6. It indicates
* whether the database contains IPv4 or IPv6 address data.
*
* @var int
*/
public $ipVersion;
/**
* An array of strings, each of which is a language code. A given record
* may contain data items that have been localized to some or all of
* these languages. This may be undefined.
*
* @var array
*/
public $languages;
/**
* @var int
*/
public $nodeByteSize;
/**
* This is an unsigned 32-bit integer indicating the number of nodes in
* the search tree.
*
* @var int
*/
public $nodeCount;
/**
* This is an unsigned 16-bit integer. It indicates the number of bits in a
* record in the search tree. Note that each node consists of two records.
*
* @var int
*/
public $recordSize;
/**
* @var int
*/
public $searchTreeSize;
public function __construct(array $metadata)
{
if (\func_num_args() !== 1) {
throw new \ArgumentCountError(
sprintf('%s() expects exactly 1 parameter, %d given', __METHOD__, \func_num_args())
);
}
$this->binaryFormatMajorVersion =
$metadata['binary_format_major_version'];
$this->binaryFormatMinorVersion =
$metadata['binary_format_minor_version'];
$this->buildEpoch = $metadata['build_epoch'];
$this->databaseType = $metadata['database_type'];
$this->languages = $metadata['languages'];
$this->description = $metadata['description'];
$this->ipVersion = $metadata['ip_version'];
$this->nodeCount = $metadata['node_count'];
$this->recordSize = $metadata['record_size'];
$this->nodeByteSize = $this->recordSize / 4;
$this->searchTreeSize = $this->nodeCount * $this->nodeByteSize;
}
}
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