71 lines
1.9 KiB
PHP
71 lines
1.9 KiB
PHP
<?php
|
|
|
|
namespace Guzzle\Inflection;
|
|
|
|
/**
|
|
* Decorator used to add memoization to previously inflected words
|
|
*/
|
|
class MemoizingInflector implements InflectorInterface
|
|
{
|
|
/** @var array Array of cached inflections */
|
|
protected $cache = array(
|
|
'snake' => array(),
|
|
'camel' => array()
|
|
);
|
|
|
|
/** @var int Max entries per cache */
|
|
protected $maxCacheSize;
|
|
|
|
/** @var InflectorInterface Decorated inflector */
|
|
protected $decoratedInflector;
|
|
|
|
/**
|
|
* @param InflectorInterface $inflector Inflector being decorated
|
|
* @param int $maxCacheSize Maximum number of cached items to hold per cache
|
|
*/
|
|
public function __construct(InflectorInterface $inflector, $maxCacheSize = 500)
|
|
{
|
|
$this->decoratedInflector = $inflector;
|
|
$this->maxCacheSize = $maxCacheSize;
|
|
}
|
|
|
|
public function snake($word)
|
|
{
|
|
if (!isset($this->cache['snake'][$word])) {
|
|
$this->pruneCache('snake');
|
|
$this->cache['snake'][$word] = $this->decoratedInflector->snake($word);
|
|
}
|
|
|
|
return $this->cache['snake'][$word];
|
|
}
|
|
|
|
/**
|
|
* Converts strings from snake_case to upper CamelCase
|
|
*
|
|
* @param string $word Value to convert into upper CamelCase
|
|
*
|
|
* @return string
|
|
*/
|
|
public function camel($word)
|
|
{
|
|
if (!isset($this->cache['camel'][$word])) {
|
|
$this->pruneCache('camel');
|
|
$this->cache['camel'][$word] = $this->decoratedInflector->camel($word);
|
|
}
|
|
|
|
return $this->cache['camel'][$word];
|
|
}
|
|
|
|
/**
|
|
* Prune one of the named caches by removing 20% of the cache if it is full
|
|
*
|
|
* @param string $cache Type of cache to prune
|
|
*/
|
|
protected function pruneCache($cache)
|
|
{
|
|
if (count($this->cache[$cache]) == $this->maxCacheSize) {
|
|
$this->cache[$cache] = array_slice($this->cache[$cache], $this->maxCacheSize * 0.2);
|
|
}
|
|
}
|
|
}
|