/**
* Analyzes the sources placed at the given path and returns the results.
*
* @param string $sourceCodeDir
* @param string $modulesRelativePattern
*
* @return DependencyResponse
*
* @throws \InvalidArgumentException
*/
public function analyze($sourceCodeDir, $modulesRelativePattern)
{
// Get the modules and their paths.
$modules = $this->getModules($sourceCodeDir, $modulesRelativePattern);
if (empty($modules)) {
return DependencyResponse::createEmptyResponse();
}
// Get the module declarations: what classes they expose and what classes they use.
$declarations = array();
foreach ($modules as $name => $path) {
$declarations[$name] = $this->scanModule($path);
}
// Prepare the response.
$moduleNames = array_keys($modules);
$dependencyGraph = $this->buildDependencyGraph($declarations);
$connectedComponents = $this->connectedComponentsAnalyzer->get($dependencyGraph);
$score = count($connectedComponents) / count($modules);
// Return the response.
return new DependencyResponse($moduleNames, $dependencyGraph, $connectedComponents, $score);
}
/**
* Parses the analysis dependency results and generates the dependency graph edges in a format
* that it will be used for rendering.
*
* @param DependencyResponse $dependencyResponse
* @param array $nodes
*
* @return array
*/
private function computeGraphEdges(DependencyResponse $dependencyResponse, array $nodes)
{
$graph = $dependencyResponse->getGraph();
$edges = array();
$index = 0;
foreach ($graph as $vertex => $neighbours) {
foreach ($neighbours as $neighbour) {
$edges[] = array('id' => Settings::GRAPH_EDGE_ID_PREFIX . $index, 'source' => $nodes[$vertex]['id'], 'target' => $nodes[$neighbour]['id'], 'color' => $nodes[$vertex]['color'], 'type' => Settings::GRAPH_EDGE_TYPE);
$index++;
}
}
return $edges;
}
