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- 06.01.2017
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PrototypeClassFactory.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\Code\Generic\Prototype;
011
012 use Zend\Code\Reflection\Exception;
013
014 /**
015 * This is a factory for classes which are identified by name.
016 *
017 * All classes that this factory can supply need to
018 * be registered before (prototypes). This prototypes need to implement
019 * an interface which ensures every prototype has a name.
020 *
021 * If the factory can not supply the class someone is asking for
022 * it tries to fallback on a generic default prototype, which would
023 * have need to be set before.
024 */
025 class PrototypeClassFactory
026 {
027 /**
028 * @var array
029 */
030 protected $prototypes = array();
031
032 /**
033 * @var PrototypeGenericInterface
034 */
035 protected $genericPrototype = null;
036
037 /**
038 * @param PrototypeInterface[] $prototypes
039 * @param PrototypeGenericInterface $genericPrototype
040 */
041 public function __construct($prototypes = array(), PrototypeGenericInterface $genericPrototype = null)
042 {
043 foreach ((array)$prototypes as $prototype) {
044 $this->addPrototype($prototype);
045 }
046
047 if ($genericPrototype) {
048 $this->setGenericPrototype($genericPrototype);
049 }
050 }
051
052 /**
053 * @param PrototypeInterface $prototype
054 * @throws Exception\InvalidArgumentException
055 */
056 public function addPrototype(PrototypeInterface $prototype)
057 {
058 $prototypeName = $this->normalizeName($prototype->getName());
059
060 if (isset($this->prototypes[$prototypeName])) {
061 throw new Exception\InvalidArgumentException('A prototype with this name already exists in this manager');
062 }
063
064 $this->prototypes[$prototypeName] = $prototype;
065 }
066
067 /**
068 * @param PrototypeGenericInterface $prototype
069 * @throws Exception\InvalidArgumentException
070 */
071 public function setGenericPrototype(PrototypeGenericInterface $prototype)
072 {
073 if (isset($this->genericPrototype)) {
074 throw new Exception\InvalidArgumentException('A default prototype is already set');
075 }
076
077 $this->genericPrototype = $prototype;
078 }
079
080 /**
081 * @param string $name
082 * @return string
083 */
084 protected function normalizeName($name)
085 {
086 return str_replace(array('-', '_'), '', $name);
087 }
088
089 /**
090 * @param string $name
091 * @return bool
092 */
093 public function hasPrototype($name)
094 {
095 $name = $this->normalizeName($name);
096 return isset($this->prototypes[$name]);
097 }
098
099 /**
100 * @param string $prototypeName
101 * @return PrototypeInterface
102 * @throws Exception\RuntimeException
103 */
104 public function getClonedPrototype($prototypeName)
105 {
106 $prototypeName = $this->normalizeName($prototypeName);
107
108 if (!$this->hasPrototype($prototypeName) && !isset($this->genericPrototype)) {
109 throw new Exception\RuntimeException('This tag name is not supported by this tag manager');
110 }
111
112 if (!$this->hasPrototype($prototypeName)) {
113 $newPrototype = clone $this->genericPrototype;
114 $newPrototype->setName($prototypeName);
115 } else {
116 $newPrototype = clone $this->prototypes[$prototypeName];
117 }
118
119 return $newPrototype;
120 }
121 }
122