1: <?php
 2: /**
 3:  * This file is part of the FastFeed package.
 4:  *
 5:  * (c) Daniel González <daniel@desarrolla2.com>
 6:  *
 7:  * For the full copyright and license information, please view the LICENSE
 8:  * file that was distributed with this source code.
 9:  */
10: namespace FastFeed\Parser;
11: 
12: use DOMElement;
13: use FastFeed\Item;
14: use FastFeed\Aggregator\AggregatorInterface;
15: use FastFeed\Exception\LogicException;
16: 
17: /**
18:  * AbstractParser
19:  */
20: abstract class AbstractParser extends AbstractDomParser
21: {
22: 
23:     /**
24:      * @var array
25:      */
26:     protected $aggregators = array();
27: 
28:     /**
29:      * @return mixed
30:      * @throws \FastFeed\Exception\LogicException
31:      */
32:     public function popAggregator()
33:     {
34:         if (!$this->aggregators) {
35:             throw new LogicException('You tried to pop from an empty Aggregator stack.');
36:         }
37: 
38:         return array_shift($this->aggregators);
39:     }
40: 
41:     /**
42:      * @param AggregatorInterface $aggregator
43:      */
44:     public function pushAggregator(AggregatorInterface $aggregator)
45:     {
46:         $this->aggregators[] = $aggregator;
47:     }
48: 
49:     /**
50:      * @param DOMElement $node
51:      * @param Item       $item
52:      */
53:     protected function executeAggregators(DOMElement $node, Item $item)
54:     {
55:         foreach ($this->aggregators as $aggregator) {
56:             $aggregator->process($node, $item);
57:         }
58:     }
59: 
60:     /**
61:      * @return array
62:      */
63:     abstract protected function getPropertiesMapping();
64: 
65:     /**
66:      * @param DOMElement $node
67:      * @param Item       $item
68:      */
69:     protected function setProperties(DOMElement $node, Item $item)
70:     {
71:         $propertiesMapping = $this->getPropertiesMapping();
72:         foreach ($propertiesMapping as $methodName => $propertyName) {
73:             $value = $this->getNodeValueByTagName($node, $propertyName);
74:             if ($value) {
75:                 $item->$methodName($value);
76:             }
77:         }
78:     }
79: }
80: