/**
* Calculates lcom for file (and not for class)
*
* @param string $filename
* @return Result
*/
public function calculate($filename)
{
$rOOP = $this->classMap->getClassesIn($filename);
$result = new Result($filename);
$n = 0;
$lcom = new LackOfCohesionOfMethods();
foreach ($rOOP->getClasses() as $class) {
$r = $lcom->calculate($class);
$n += $r->getLcom();
}
$result->setLcom($n);
return $result;
}
/**
* Calculates system complexity
*
* @param string $filename
* @return Result
*/
public function calculate($filename)
{
$rOOP = $this->classMap->getClassesIn($filename);
$result = new Result($filename);
$len = 0;
$sy = $dc = $sc = array();
$calculator = new SystemComplexity();
foreach ($rOOP->getClasses() as $class) {
$r = $calculator->calculate($class);
$len += sizeof($class->getMethods(), COUNT_NORMAL);
$sy[] = $r->getTotalSystemComplexity();
$dc[] = $r->getTotalDataComplexity();
$sc[] = $r->getTotalStructuralComplexity();
}
if ($len > 0 && sizeof($dc, COUNT_NORMAL) > 0) {
$result->setRelativeStructuralComplexity(round(array_sum($sc) / $len, 2))->setRelativeDataComplexity(round(array_sum($dc) / $len, 2))->setRelativeSystemComplexity(round(array_sum($sy) / $len, 2))->setTotalStructuralComplexity(array_sum($sc))->setTotalDataComplexity(array_sum($dc))->setTotalSystemComplexity(array_sum($dc) + array_sum($sc));
}
return $result;
}
/**
* Calculates coupling for file (and not for class)
*
* @param string $filename
* @return Result
*/
public function calculate($filename)
{
$rOOP = $this->classMap->getClassesIn($filename);
$result = new Result($filename);
// case of file doesn't contain any class
if (null === $rOOP) {
return $result;
}
$instability = $ce = $ca = 0;
$classes = $rOOP->getClasses();
foreach ($classes as $declaredClass) {
$declaredClassCoupling = $this->couplingMap->get($declaredClass->getFullname());
$ce += $declaredClassCoupling->getEfferentCoupling();
$ca += $declaredClassCoupling->getAfferentCoupling();
}
if ($ca + $ce > 0) {
$instability = $ce / ($ca + $ce);
}
$result->setAfferentCoupling($ca)->setEfferentCoupling($ce)->setInstability($instability);
return $result;
}