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<?php
namespace MaxMind\Db\Reader;
/**
* This class provides the metadata for the MaxMind DB file.
*
* @property int $nodeCount This is an unsigned 32-bit
* integer indicating the number of
* nodes in the search tree.
* @property int $recordSize 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.
* @property int $ipVersion This is an unsigned 16-bit
* integer which is always 4 or 6.
* It indicates whether the database
* contains IPv4 or IPv6 address
* data.
* @property string $databaseType 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.
* @property array $languages 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.
* @property int $binaryFormatMajorVersion This is an unsigned 16-bit
* integer indicating the major
* version number for the database's
* binary format.
* @property int $binaryFormatMinorVersion This is an unsigned 16-bit
* integer indicating the minor
* version number for the database's
* binary format.
* @property int $buildEpoch This is an unsigned 64-bit
* integer that contains the
* database build timestamp as a
* Unix epoch value.
* @property array $description 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.
*/
class Metadata
{
private $binaryFormatMajorVersion;
private $binaryFormatMinorVersion;
private $buildEpoch;
private $databaseType;
private $description;
private $ipVersion;
private $languages;
private $nodeByteSize;
private $nodeCount;
private $recordSize;
private $searchTreeSize;
public function __construct($metadata)
{
$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 * $this->nodeByteSize;
}
public function __get($var)
{
return $this->$var;
}
}
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