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Query.php
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Query.php
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<?php
/**
* Query.php
*
* Author: Larry Li <larryli@qq.com>
*/
namespace larryli\ipv4;
/**
* Class Query
* @package larryli\ipv4
*/
abstract class Query extends Object implements \Countable, \Iterator
{
/**
* @var Query[]
*/
protected $providers = [];
/**
* return 0.1s
*
* @return int
*/
static public function time()
{
return intval(microtime(true) * 10);
}
/**
* @param $name
* @param $options
* @return Query
* @throws \Exception
*/
public static function create($name, $options)
{
if (is_array($options) && isset($options['class'])) {
$class = $options['class'];
$options = @$options['options'];
} else {
$class = __NAMESPACE__ . "\\" . ucfirst($name) . 'Query';
}
if (!class_exists($class)) {
throw new \Exception("{$class} not found");
}
return new $class($options);
}
/**
* @return string
*/
public function __toString()
{
return $this->name();
}
/**
* name of the query
*
* @return string name string
*/
abstract public function name();
/**
* check data is exists
*
* @return bool false meed the query need generate()
*/
abstract public function exists();
/**
* initialize data with provider
*
* @param null|callback $func notify function
* @return void
*/
abstract public function init(callable $func = null);
/**
* clean data
*
* @return void
*/
abstract public function clean();
/**
* query ip division
*
* @param $ip
* @return string
*/
abstract public function find($ip);
/**
* query ip division id
*
* @param $ip
* @return integer
*/
abstract public function findId($ip);
/**
* translate division id to division
*
* @param integer $integer division id
* @return string division
*/
abstract public function divisionById($integer);
/**
* translate division to division id
*
* @param string $string division
* @return integer division id
*/
abstract public function idByDivision($string);
/**
* @return Query[]
*/
public function getProviders()
{
return $this->providers;
}
/**
* @param Query[] $providers
* @return mixed
*/
public function setProviders(array $providers)
{
$this->providers = [];
foreach ($providers as $provider) {
if (Query::is_a($provider)) {
$this->providers[] = $provider;
}
}
}
}