gistfile1.txt

<?php

class test {

    $typeAssoc = [
      DocumentInterface::TYPE_QUOTATION => DocumentInterface::CLASSNAME_QUOTATION,
      DocumentInterface::TYPE_QUOTATION => DocumentInterface::CLASSNAME_QUOTATION,
      DocumentInterface::TYPE_QUOTATION => DocumentInterface::CLASSNAME_QUOTATION,
      DocumentInterface::TYPE_QUOTATION => DocumentInterface::CLASSNAME_QUOTATION,
    ];

    public function getTypeClassName()
    {
        if (isset($this->typeAssoc[$this->getType()]) {
            return $this->typeAssoc[$this->getType()];          
        }
        
      throw new \Exception('WTF entity');
    }
}