<?php
namespace Guzzle\Service\Resource;
use Guzzle\Common\Exception\InvalidArgumentException;
use Guzzle\Service\Command\CommandInterface;
/**
* Factory that utilizes multiple factories for creating iterators
*/
class CompositeResourceIteratorFactory implements ResourceIteratorFactoryInterface
{
/** @var array Array of factories */
protected $factories;
/** @param array $factories Array of factories used to instantiate iterators */
public function __construct(array $factories)
{
$this->factories = $factories;
}
public function build(CommandInterface $command, array $options = array())
{
if (!($factory = $this->getFactory($command))) {
throw new InvalidArgumentException('Iterator was not found for ' . $command->getName());
}
return $factory->build($command, $options);
}
public function canBuild(CommandInterface $command)
{
return $this->getFactory($command) !== false;
}
/**
* Add a factory to the composite factory
*
* @param ResourceIteratorFactoryInterface $factory Factory to add
*
* @return self
*/
public function addFactory(ResourceIteratorFactoryInterface $factory)
{
$this->factories[] = $factory;
return $this;
}
/**
* Get the factory that matches the command object
*
* @param CommandInterface $command Command retrieving the iterator for
*
* @return ResourceIteratorFactoryInterface|bool
*/
protected function getFactory(CommandInterface $command)
{
foreach ($this->factories as $factory) {
if ($factory->canBuild($command)) {
return $factory;
}
}
return false;
}
}