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SerializableStrategy.php
001 <?php
002 /**
003 * Zend Framework (http://framework.zend.com/)
004 *
005 * @link http://github.com/zendframework/zf2 for the canonical source repository
006 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
007 * @license http://framework.zend.com/license/new-bsd New BSD License
008 */
009
010 namespace Zend\Stdlib\Hydrator\Strategy;
011
012 use Zend\Stdlib\Exception\InvalidArgumentException;
013 use Zend\Serializer\Adapter\AdapterInterface as SerializerAdapter;
014 use Zend\Serializer\Serializer as SerializerFactory;
015
016 class SerializableStrategy implements StrategyInterface
017 {
018 /**
019 * @var string|SerializerAdapter
020 */
021 protected $serializer;
022
023 /**
024 * @var array
025 */
026 protected $serializerOptions = array();
027
028 /**
029 *
030 * @param mixed $serializer string or SerializerAdapter
031 * @param mixed $serializerOptions
032 */
033 public function __construct($serializer, $serializerOptions = null)
034 {
035 $this->setSerializer($serializer);
036 if ($serializerOptions) {
037 $this->setSerializerOptions($serializerOptions);
038 }
039 }
040
041 /**
042 * Serialize the given value so that it can be extracted by the hydrator.
043 *
044 * @param mixed $value The original value.
045 * @return mixed Returns the value that should be extracted.
046 */
047 public function extract($value)
048 {
049 $serializer = $this->getSerializer();
050 return $serializer->serialize($value);
051 }
052
053 /**
054 * Unserialize the given value so that it can be hydrated by the hydrator.
055 *
056 * @param mixed $value The original value.
057 * @return mixed Returns the value that should be hydrated.
058 */
059 public function hydrate($value)
060 {
061 $serializer = $this->getSerializer();
062 return $serializer->unserialize($value);
063 }
064
065 /**
066 * Set serializer
067 *
068 * @param string|SerializerAdapter $serializer
069 * @return SerializableStrategy
070 */
071 public function setSerializer($serializer)
072 {
073 if (!is_string($serializer) && !$serializer instanceof SerializerAdapter) {
074 throw new InvalidArgumentException(sprintf(
075 '%s expects either a string serializer name or Zend\Serializer\Adapter\AdapterInterface instance; '
076 . 'received "%s"',
077 __METHOD__,
078 (is_object($serializer) ? get_class($serializer) : gettype($serializer))
079 ));
080 }
081 $this->serializer = $serializer;
082 return $this;
083 }
084
085 /**
086 * Get serializer
087 *
088 * @return SerializerAdapter
089 */
090 public function getSerializer()
091 {
092 if (is_string($this->serializer)) {
093 $options = $this->getSerializerOptions();
094 $this->setSerializer(SerializerFactory::factory($this->serializer, $options));
095 } elseif (null === $this->serializer) {
096 $this->setSerializer(SerializerFactory::getDefaultAdapter());
097 }
098
099 return $this->serializer;
100 }
101
102 /**
103 * Set configuration options for instantiating a serializer adapter
104 *
105 * @param mixed $serializerOptions
106 * @return SerializableStrategy
107 */
108 public function setSerializerOptions($serializerOptions)
109 {
110 $this->serializerOptions = $serializerOptions;
111 return $this;
112 }
113
114 /**
115 * Get configuration options for instantiating a serializer adapter
116 *
117 * @return mixed
118 */
119 public function getSerializerOptions()
120 {
121 return $this->serializerOptions;
122 }
123 }
124