Neos\Flow\Configuration\ConfigurationManager::loadConfiguration PHP Method

    protected function loadConfiguration($configurationType, array $packages)
    {
        $this->cacheNeedsUpdate = true;
        $configurationProcessingType = $this->resolveConfigurationProcessingType($configurationType);
        $allowSplitSource = $this->isSplitSourceAllowedForConfigurationType($configurationType);
        switch ($configurationProcessingType) {
            case self::CONFIGURATION_PROCESSING_TYPE_SETTINGS:
                // Make sure that the Flow package is the first item of the packages array:
                if (isset($packages['Neos.Flow'])) {
                    $flowPackage = $packages['Neos.Flow'];
                    unset($packages['Neos.Flow']);
                    $packages = array_merge(['Neos.Flow' => $flowPackage], $packages);
                    unset($flowPackage);
                }
                $settings = [];
                /** @var $package PackageInterface */
                foreach ($packages as $packageKey => $package) {
                    if (Arrays::getValueByPath($settings, $packageKey) === null) {
                        $settings = Arrays::setValueByPath($settings, $packageKey, []);
                    }
                    $settings = Arrays::arrayMergeRecursiveOverrule($settings, $this->configurationSource->load($package->getConfigurationPath() . $configurationType, $allowSplitSource));
                }
                $settings = Arrays::arrayMergeRecursiveOverrule($settings, $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $configurationType, $allowSplitSource));
                foreach ($this->orderedListOfContextNames as $contextName) {
                    /** @var $package PackageInterface */
                    foreach ($packages as $package) {
                        $settings = Arrays::arrayMergeRecursiveOverrule($settings, $this->configurationSource->load($package->getConfigurationPath() . $contextName . '/' . $configurationType, $allowSplitSource));
                    }
                    $settings = Arrays::arrayMergeRecursiveOverrule($settings, $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $contextName . '/' . $configurationType, $allowSplitSource));
                }
                if ($this->configurations[$configurationType] !== []) {
                    $this->configurations[$configurationType] = Arrays::arrayMergeRecursiveOverrule($this->configurations[$configurationType], $settings);
                } else {
                    $this->configurations[$configurationType] = $settings;
                }
                $this->configurations[$configurationType]['Neos']['Flow']['core']['context'] = (string) $this->context;
                break;
            case self::CONFIGURATION_PROCESSING_TYPE_OBJECTS:
                $this->configurations[$configurationType] = [];
                /** @var $package PackageInterface */
                foreach ($packages as $packageKey => $package) {
                    $configuration = $this->configurationSource->load($package->getConfigurationPath() . $configurationType);
                    $configuration = Arrays::arrayMergeRecursiveOverrule($configuration, $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $configurationType));
                    foreach ($this->orderedListOfContextNames as $contextName) {
                        $configuration = Arrays::arrayMergeRecursiveOverrule($configuration, $this->configurationSource->load($package->getConfigurationPath() . $contextName . '/' . $configurationType));
                        $configuration = Arrays::arrayMergeRecursiveOverrule($configuration, $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $contextName . '/' . $configurationType));
                    }
                    $this->configurations[$configurationType][$packageKey] = $configuration;
                }
                break;
            case self::CONFIGURATION_PROCESSING_TYPE_POLICY:
                if ($this->context->isTesting()) {
                    $testingPolicyPathAndFilename = $this->temporaryDirectoryPath . 'Policy';
                    if ($this->configurationSource->has($testingPolicyPathAndFilename)) {
                        $this->configurations[$configurationType] = $this->configurationSource->load($testingPolicyPathAndFilename);
                        break;
                    }
                }
                $this->configurations[$configurationType] = [];
                /** @var $package PackageInterface */
                foreach ($packages as $package) {
                    $packagePolicyConfiguration = $this->configurationSource->load($package->getConfigurationPath() . $configurationType, $allowSplitSource);
                    $this->validatePolicyConfiguration($packagePolicyConfiguration, $package);
                    $this->configurations[$configurationType] = $this->mergePolicyConfiguration($this->configurations[$configurationType], $packagePolicyConfiguration);
                }
                $this->configurations[$configurationType] = $this->mergePolicyConfiguration($this->configurations[$configurationType], $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $configurationType, $allowSplitSource));
                foreach ($this->orderedListOfContextNames as $contextName) {
                    /** @var $package PackageInterface */
                    foreach ($packages as $package) {
                        $packagePolicyConfiguration = $this->configurationSource->load($package->getConfigurationPath() . $contextName . '/' . $configurationType, $allowSplitSource);
                        $this->validatePolicyConfiguration($packagePolicyConfiguration, $package);
                        $this->configurations[$configurationType] = $this->mergePolicyConfiguration($this->configurations[$configurationType], $packagePolicyConfiguration);
                    }
                    $this->configurations[$configurationType] = $this->mergePolicyConfiguration($this->configurations[$configurationType], $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $contextName . '/' . $configurationType, $allowSplitSource));
                }
                break;
            case self::CONFIGURATION_PROCESSING_TYPE_DEFAULT:
                $this->configurations[$configurationType] = [];
                /** @var $package PackageInterface */
                foreach ($packages as $package) {
                    $this->configurations[$configurationType] = Arrays::arrayMergeRecursiveOverrule($this->configurations[$configurationType], $this->configurationSource->load($package->getConfigurationPath() . $configurationType, $allowSplitSource));
                }
                $this->configurations[$configurationType] = Arrays::arrayMergeRecursiveOverrule($this->configurations[$configurationType], $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $configurationType, $allowSplitSource));
                foreach ($this->orderedListOfContextNames as $contextName) {
                    /** @var $package PackageInterface */
                    foreach ($packages as $package) {
                        $this->configurations[$configurationType] = Arrays::arrayMergeRecursiveOverrule($this->configurations[$configurationType], $this->configurationSource->load($package->getConfigurationPath() . $contextName . '/' . $configurationType, $allowSplitSource));
                    }
                    $this->configurations[$configurationType] = Arrays::arrayMergeRecursiveOverrule($this->configurations[$configurationType], $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $contextName . '/' . $configurationType, $allowSplitSource));
                }
                break;
            case self::CONFIGURATION_PROCESSING_TYPE_ROUTES:
                // load main routes
                $this->configurations[$configurationType] = [];
                foreach (array_reverse($this->orderedListOfContextNames) as $contextName) {
                    $this->configurations[$configurationType] = array_merge($this->configurations[$configurationType], $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $contextName . '/' . $configurationType));
                }
                $this->configurations[$configurationType] = array_merge($this->configurations[$configurationType], $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $configurationType));
                // load subroutes from Routes.yaml and Settings.yaml and merge them with main routes recursively
                $this->includeSubRoutesFromSettings($this->configurations[$configurationType]);
                $this->mergeRoutesWithSubRoutes($this->configurations[$configurationType]);
                break;
            case self::CONFIGURATION_PROCESSING_TYPE_APPEND:
                $this->configurations[$configurationType] = [];
                /** @var $package PackageInterface */
                foreach ($packages as $package) {
                    $this->configurations[$configurationType] = array_merge($this->configurations[$configurationType], $this->configurationSource->load($package->getConfigurationPath() . $configurationType, $allowSplitSource));
                }
                $this->configurations[$configurationType] = array_merge($this->configurations[$configurationType], $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $configurationType, $allowSplitSource));
                foreach ($this->orderedListOfContextNames as $contextName) {
                    foreach ($packages as $package) {
                        $this->configurations[$configurationType] = array_merge($this->configurations[$configurationType], $this->configurationSource->load($package->getConfigurationPath() . $contextName . '/' . $configurationType, $allowSplitSource));
                    }
                    $this->configurations[$configurationType] = array_merge($this->configurations[$configurationType], $this->configurationSource->load(FLOW_PATH_CONFIGURATION . $contextName . '/' . $configurationType, $allowSplitSource));
                }
                break;
            default:
                throw new Exception\InvalidConfigurationTypeException('Configuration type "' . $configurationType . '" cannot be loaded with loadConfiguration().', 1251450613);
        }
        $this->postProcessConfiguration($this->configurations[$configurationType]);
    }