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170 lines (144 loc) · 3.29 KB
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<?php
/**
* This file is part of the Geocoder package.
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @license MIT License
*/
namespace Geocoder;
use Geocoder\Exception\ProviderNotRegistered;
use Geocoder\Provider\Provider;
use Geocoder\Model\AddressCollection;
/**
* @author William Durand <[email protected]>
*/
class ProviderAggregator implements Geocoder
{
/**
* @var Provider[]
*/
private $providers = [];
/**
* @var Provider
*/
private $provider;
/**
* @var integer
*/
private $limit;
/**
* @param integer $limit
*/
public function __construct($limit = Provider::MAX_RESULTS)
{
$this->limit($limit);
}
/**
* {@inheritDoc}
*/
public function geocode($value)
{
$value = trim($value);
if (empty($value)) {
// let's save a request
return new AddressCollection();
}
return $this->getProvider()
->limit($this->getLimit())
->geocode($value);
}
/**
* {@inheritDoc}
*/
public function reverse($latitude, $longitude)
{
if (empty($latitude) || empty($longitude)) {
// let's save a request
return new AddressCollection();
}
return $this->getProvider()
->limit($this->getLimit())
->reverse($latitude, $longitude);
}
/**
* {@inheritDoc}
*/
public function limit($limit)
{
$this->limit = $limit;
return $this;
}
/**
* {@inheritDoc}
*/
public function getLimit()
{
return $this->limit;
}
/**
* Registers a new provider to the aggregator.
*
* @param Provider $provider
*
* @return ProviderAggregator
*/
public function registerProvider(Provider $provider)
{
$this->providers[$provider->getName()] = $provider;
return $this;
}
/**
* Registers a set of providers.
*
* @param Provider[] $providers
*
* @return ProviderAggregator
*/
public function registerProviders(array $providers = [])
{
foreach ($providers as $provider) {
$this->registerProvider($provider);
}
return $this;
}
/**
* Sets the default provider to use.
*
* @param string $name
*
* @return ProviderAggregator
*/
public function using($name)
{
if (!isset($this->providers[$name])) {
throw new ProviderNotRegistered($name);
}
$this->provider = $this->providers[$name];
return $this;
}
/**
* Returns all registered providers indexed by their name.
*
* @return Provider[]
*/
public function getProviders()
{
return $this->providers;
}
/**
* Returns the current provider in use.
*
* @return Provider
*/
protected function getProvider()
{
if (null === $this->provider) {
if (0 === count($this->providers)) {
throw new \RuntimeException('No provider registered.');
}
$this->using(key($this->providers));
}
return $this->provider;
}
}