1: <?php
 2: 
 3: namespace Guzzle\Service\Resource;
 4: 
 5: use Guzzle\Common\Exception\InvalidArgumentException;
 6: use Guzzle\Service\Command\CommandInterface;
 7: 
 8: /**
 9:  * Factory that utilizes multiple factories for creating iterators
10:  */
11: class CompositeResourceIteratorFactory implements ResourceIteratorFactoryInterface
12: {
13:     /**
14:      * @var array Array of factories
15:      */
16:     protected $factories;
17: 
18:     /**
19:      * @param array $factories Array of factories used to instantiate iterators
20:      */
21:     public function __construct(array $factories)
22:     {
23:         $this->factories = $factories;
24:     }
25: 
26:     /**
27:      * {@inheritdoc}
28:      */
29:     public function build(CommandInterface $command, array $options = array())
30:     {
31:         if (!($factory = $this->getFactory($command))) {
32:             throw new InvalidArgumentException('Iterator was not found for ' . $command->getName());
33:         }
34: 
35:         return $factory->build($command, $options);
36:     }
37: 
38:     /**
39:      * {@inheritdoc}
40:      */
41:     public function canBuild(CommandInterface $command)
42:     {
43:         return $this->getFactory($command) !== false;
44:     }
45: 
46:     /**
47:      * Add a factory to the composite factory
48:      *
49:      * @param ResourceIteratorFactoryInterface $factory Factory to add
50:      *
51:      * @return self
52:      */
53:     public function addFactory(ResourceIteratorFactoryInterface $factory)
54:     {
55:         $this->factories[] = $factory;
56: 
57:         return $this;
58:     }
59: 
60:     /**
61:      * Get the factory that matches the command object
62:      *
63:      * @param CommandInterface $command Command retrieving the iterator for
64:      *
65:      * @return ResourceIteratorFactoryInterface|bool
66:      */
67:     protected function getFactory(CommandInterface $command)
68:     {
69:         foreach ($this->factories as $factory) {
70:             if ($factory->canBuild($command)) {
71:                 return $factory;
72:             }
73:         }
74: 
75:         return false;
76:     }
77: }
78: