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getConfigCacheFactory example

            $this->matcher = new $this->options['matcher_class']($routes, $this->context);
            if (method_exists($this->matcher, 'addExpressionLanguageProvider')) {
                foreach ($this->expressionLanguageProviders as $provider) {
                    $this->matcher->addExpressionLanguageProvider($provider);
                }
            }

            return $this->matcher;
        }

        $cache = $this->getConfigCacheFactory()->cache($this->options['cache_dir'].'/url_matching_routes.php',
            function DConfigCacheInterface $cache) {
                $dumper = $this->getMatcherDumperInstance();
                if (method_exists($dumper, 'addExpressionLanguageProvider')) {
                    foreach ($this->expressionLanguageProviders as $provider) {
                        $dumper->addExpressionLanguageProvider($provider);
                    }
                }

                $cache->write($dumper->dump(), $this->getRouteCollection()->getResources());
            }
        );

$this->loadFallbackCatalogues($locale);
    }

    private function initializeCacheCatalogue(string $locale): void
    {
        if (isset($this->catalogues[$locale])) {
            /* Catalogue already initialized. */
            return;
        }

        $this->assertValidLocale($locale);
        $cache = $this->getConfigCacheFactory()->cache($this->getCatalogueCachePath($locale),
            function DConfigCacheInterface $cache) use ($locale) {
                $this->dumpCatalogue($locale, $cache);
            }
        );

        if (isset($this->catalogues[$locale])) {
            /* Catalogue has been initialized as it was written out to cache. */
            return;
        }

        /* Read catalogue from cache. */