List of usage examples for io.netty.resolver.dns DnsNameResolverBuilder build
public DnsNameResolver build()
From source file:chat.viska.xmpp.Connection.java
License:Apache License
private static Single<List<DnsRecord>> lookupDnsUsingNetty(final String query, final DnsRecordType type, @Nullable final Iterable<String> dns) { final NioEventLoopGroup threadPool = new NioEventLoopGroup(); final DnsNameResolverBuilder builder = new DnsNameResolverBuilder(threadPool.next()); builder.channelFactory(new ReflectiveChannelFactory<>(NioDatagramChannel.class)); builder.decodeIdn(true);/* w ww.j a v a 2 s . co m*/ if (dns != null) { builder.searchDomains(dns); } return Single.fromFuture(builder.build().query(new DefaultDnsQuestion(query, type))) .map(AddressedEnvelope::content).map(message -> { final int recordsSize = message.count(DnsSection.ANSWER); final List<DnsRecord> records = new ArrayList<>(recordsSize); for (int it = 0; it < recordsSize; ++it) { records.add(message.recordAt(DnsSection.ANSWER, it)); } return records; }).doFinally(threadPool::shutdownGracefully); }
From source file:com.linecorp.armeria.client.endpoint.dns.DnsEndpointGroup.java
License:Apache License
DnsEndpointGroup(EventLoop eventLoop, int minTtl, int maxTtl, DnsServerAddressStreamProvider serverAddressStreamProvider, Backoff backoff, Iterable<DnsQuestion> questions, Consumer<DnsNameResolverBuilder> resolverConfigurator) { this.eventLoop = eventLoop; this.minTtl = minTtl; this.maxTtl = maxTtl; this.backoff = backoff; this.questions = ImmutableList.copyOf(questions); assert !this.questions.isEmpty(); logger = LoggerFactory.getLogger(getClass()); logPrefix = this.questions.stream().map(DnsQuestion::name).distinct() .collect(Collectors.joining(", ", "[", "]")); final DnsNameResolverBuilder resolverBuilder = new DnsNameResolverBuilder(eventLoop) .channelType(TransportType.datagramChannelType(eventLoop.parent())).ttl(minTtl, maxTtl) .nameServerProvider(serverAddressStreamProvider); resolverConfigurator.accept(resolverBuilder); resolver = resolverBuilder.build(); }
From source file:io.vertx.core.impl.HostnameResolver.java
License:Open Source License
public HostnameResolver(VertxImpl vertx, HostnameResolverOptions options) { DnsNameResolverBuilder builder = new DnsNameResolverBuilder(vertx.createEventLoopContext(null, null, new JsonObject(), Thread.currentThread().getContextClassLoader()).nettyEventLoop()); builder.channelFactory(NioDatagramChannel::new); if (options != null) { List<String> dnsServers = options.getServers(); if (dnsServers != null && dnsServers.size() > 0) { List<InetSocketAddress> serverList = new ArrayList<>(); for (String dnsServer : dnsServers) { int sep = dnsServer.indexOf(':'); String ipAddress; int port; if (sep != -1) { ipAddress = dnsServer.substring(0, sep); port = Integer.parseInt(dnsServer.substring(sep + 1)); } else { ipAddress = dnsServer; port = 53;//from w w w. j a v a 2 s. c o m } try { serverList.add(new InetSocketAddress( InetAddress.getByAddress(NetUtil.createByteArrayFromIpAddressString(ipAddress)), port)); } catch (UnknownHostException e) { throw new VertxException(e); } } DnsServerAddresses nameServerAddresses = DnsServerAddresses.sequential(serverList); builder.nameServerAddresses(nameServerAddresses); } builder.optResourceEnabled(options.isOptResourceEnabled()); builder.ttl(options.getCacheMinTimeToLive(), options.getCacheMaxTimeToLive()); builder.negativeTtl(options.getCacheNegativeTimeToLive()); builder.queryTimeoutMillis(options.getQueryTimeout()); builder.maxQueriesPerResolve(options.getMaxQueries()); builder.recursionDesired(options.getRdFlag()); } this.resolver = builder.build(); this.vertx = vertx; }
From source file:io.vertx.core.impl.resolver.DnsResolverProvider.java
License:Open Source License
public DnsResolverProvider(VertxImpl vertx, AddressResolverOptions options) { List<String> dnsServers = options.getServers(); List<InetSocketAddress> serverList = new ArrayList<>(); if (dnsServers != null && dnsServers.size() > 0) { for (String dnsServer : dnsServers) { int sep = dnsServer.indexOf(':'); String ipAddress;// www . ja va2s .co m int port; if (sep != -1) { ipAddress = dnsServer.substring(0, sep); port = Integer.parseInt(dnsServer.substring(sep + 1)); } else { ipAddress = dnsServer; port = 53; } try { serverList.add(new InetSocketAddress( InetAddress.getByAddress(NetUtil.createByteArrayFromIpAddressString(ipAddress)), port)); } catch (UnknownHostException e) { throw new VertxException(e); } } } else { DnsServerAddressStream stream = DnsServerAddresses.defaultAddresses().stream(); Set<InetSocketAddress> all = new HashSet<>(); while (true) { InetSocketAddress address = stream.next(); if (all.contains(address)) { break; } serverList.add(address); all.add(address); } } DnsServerAddresses nameServerAddresses = options.isRotateServers() ? DnsServerAddresses.rotational(serverList) : DnsServerAddresses.sequential(serverList); Map<String, InetAddress> entries; if (options.getHostsPath() != null) { File file = vertx.resolveFile(options.getHostsPath()).getAbsoluteFile(); try { if (!file.exists() || !file.isFile()) { throw new IOException(); } entries = HostsFileParser.parse(file); } catch (IOException e) { throw new VertxException("Cannot read hosts file " + file.getAbsolutePath()); } } else if (options.getHostsValue() != null) { try { entries = HostsFileParser.parse(new StringReader(options.getHostsValue().toString())); } catch (IOException e) { throw new VertxException("Cannot read hosts config ", e); } } else { entries = HostsFileParser.parseSilently(); } this.vertx = vertx; this.resolverGroup = new AddressResolverGroup<InetSocketAddress>() { @Override protected io.netty.resolver.AddressResolver<InetSocketAddress> newResolver(EventExecutor executor) throws Exception { DnsAddressResolverGroup group = new DnsAddressResolverGroup(NioDatagramChannel.class, nameServerAddresses) { @Override protected NameResolver<InetAddress> newNameResolver(EventLoop eventLoop, ChannelFactory<? extends DatagramChannel> channelFactory, DnsServerAddresses nameServerAddresses) throws Exception { DnsNameResolverBuilder builder = new DnsNameResolverBuilder((EventLoop) executor); builder.hostsFileEntriesResolver(inetHost -> { InetAddress addr = entries.get(inetHost); if (addr == null) { addr = entries.get(inetHost.toLowerCase(Locale.ENGLISH)); } return addr; }); builder.channelType(NioDatagramChannel.class); builder.nameServerAddresses(nameServerAddresses); builder.optResourceEnabled(options.isOptResourceEnabled()); builder.ttl(options.getCacheMinTimeToLive(), options.getCacheMaxTimeToLive()); builder.negativeTtl(options.getCacheNegativeTimeToLive()); builder.queryTimeoutMillis(options.getQueryTimeout()); builder.maxQueriesPerResolve(options.getMaxQueries()); builder.recursionDesired(options.getRdFlag()); if (options.getSearchDomains() != null) { builder.searchDomains(options.getSearchDomains()); int ndots = options.getNdots(); if (ndots == -1) { ndots = AddressResolver.DEFAULT_NDOTS_RESOLV_OPTION; } builder.ndots(ndots); } return builder.build(); } }; io.netty.resolver.AddressResolver<InetSocketAddress> resolver = group.getResolver(executor); resolvers.add(new ResolverRegistration(resolver, (EventLoop) executor)); return resolver; } }; }