public BackgroundCertificateSynchronizer( INetworkEndpointRefresher refresher, INetworkEndpointCache cache, INetworkEndpointService endpointService, NetworkEndpointConcurrentQueueSet queue, ILogger <BackgroundCertificateSynchronizer> logger) { this.refresher = refresher; this.cache = cache; this.endpointService = endpointService; this.queue = queue; log = logger; }