TestDnsCache Class — netty Architecture

Source Code

resolver-dns/src/test/java/io/netty/resolver/dns/DnsNameResolverTest.java lines 2314–2350

    private static final class TestDnsCache implements DnsCache {
        final DnsCache cache;
        final Map<String, List<? extends DnsCacheEntry>> cacheHits =
                new HashMap<String, List<? extends DnsCacheEntry>>();

        TestDnsCache(DnsCache cache) {
            this.cache = cache;
        }

        @Override
        public void clear() {
            cache.clear();
        }

        @Override
        public boolean clear(String hostname) {
            return cache.clear(hostname);
        }

        @Override
        public List<? extends DnsCacheEntry> get(String hostname, DnsRecord[] additionals) {
            List<? extends DnsCacheEntry> cached = cache.get(hostname, additionals);
            cacheHits.put(hostname, cached);
            return cached;
        }

        @Override
        public DnsCacheEntry cache(String hostname, DnsRecord[] additionals, InetAddress address,
                                   long originalTtl, EventLoop loop) {
            return cache.cache(hostname, additionals, address, originalTtl, loop);
        }

        @Override
        public DnsCacheEntry cache(String hostname, DnsRecord[] additionals, Throwable cause, EventLoop loop) {
            return cache.cache(hostname, additionals, cause, loop);
        }
    }