/**
* Tries to get a mapping for a given class
*
* @param $className
* @return null|array|object
*/
protected function _getMapping($className)
{
//try loading mapping from original driver first
$mapping = null;
if (!is_null($this->_originalDriver)) {
if ($this->_originalDriver instanceof FileDriver || $this->_originalDriver instanceof AbstractFileDriver) {
$mapping = $this->_originalDriver->getElement($className);
}
}
//if no mapping found try to load mapping file again
if (is_null($mapping)) {
$yaml = $this->_loadMappingFile($this->locator->findMappingFile($className));
$mapping = $yaml[$className];
}
return $mapping;
}
/**
* {@inheritDoc}
*/
public function getAllClassNames()
{
if ($this->classCache === null) {
$this->initialize();
}
if (!$this->classCache) {
return (array) $this->locator->getAllClassNames($this->globalBasename);
}
return array_merge(array_keys($this->classCache), (array) $this->locator->getAllClassNames($this->globalBasename));
}
/**
* {@inheritDoc}
*/
public function getAllClassNames()
{
if ($this->classCache === null) {
$this->initialize();
}
$classNames = (array) $this->locator->getAllClassNames($this->globalBasename);
if ($this->classCache) {
$classNames = array_merge(array_keys($this->classCache), $classNames);
}
return $classNames;
}
/**
* Initialize the class cache from all the global files.
*
* Using this feature adds a substantial performance hit to file drivers as
* more metadata has to be loaded into memory than might actually be
* necessary. This may not be relevant to scenarios where caching of
* metadata is in place, however hits very hard in scenarios where no
* caching is used.
*
* @return void
*/
protected function initialize()
{
$this->classCache = array();
if (null !== $this->globalBasename) {
foreach ($this->locator->getPaths() as $path) {
$file = $path . '/' . $this->globalBasename . $this->locator->getFileExtension();
if (is_file($file)) {
$this->classCache = array_merge($this->classCache, $this->loadMappingFile($file));
}
}
}
}
