Example usage for io.netty.handler.codec.dns DnsRecordType SRV

Introduction

In this page you can find the example usage for io.netty.handler.codec.dns DnsRecordType SRV.

Prototype

DnsRecordType SRV

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Document

Service locator RFC 2782 Generalized service location record, used for newer protocols instead of creating protocol-specific records such as MX.

Usage

From source file:com.linecorp.armeria.client.endpoint.dns.DnsServiceEndpointGroup.java

License:Apache License

DnsServiceEndpointGroup(EventLoop eventLoop, int minTtl, int maxTtl,
        DnsServerAddressStreamProvider serverAddressStreamProvider, Backoff backoff, String hostname) {
    super(eventLoop, minTtl, maxTtl, serverAddressStreamProvider, backoff,
            ImmutableList.of(new DefaultDnsQuestion(hostname, DnsRecordType.SRV)), unused -> {
            });/*from   ww w  . ja v a  2  s.  c om*/
    start();
}

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From source file:com.linecorp.armeria.client.endpoint.dns.DnsServiceEndpointGroup.java

License:Apache License

@Override
ImmutableSortedSet<Endpoint> onDnsRecords(List<DnsRecord> records, int ttl) throws Exception {
    final ImmutableSortedSet.Builder<Endpoint> builder = ImmutableSortedSet.naturalOrder();
    for (DnsRecord r : records) {
        if (!(r instanceof DnsRawRecord) || r.type() != DnsRecordType.SRV) {
            continue;
        }//from   w ww. ja  va 2  s  .  c  o  m

        final ByteBuf content = ((ByteBufHolder) r).content();
        if (content.readableBytes() <= 6) { // Too few bytes
            warnInvalidRecord(DnsRecordType.SRV, content);
            continue;
        }

        content.markReaderIndex();
        content.skipBytes(2); // priority unused
        final int weight = content.readUnsignedShort();
        final int port = content.readUnsignedShort();

        final Endpoint endpoint;
        try {
            final String target = stripTrailingDot(DefaultDnsRecordDecoder.decodeName(content));
            endpoint = port > 0 ? Endpoint.of(target, port) : Endpoint.of(target);
        } catch (Exception e) {
            content.resetReaderIndex();
            warnInvalidRecord(DnsRecordType.SRV, content);
            continue;
        }

        builder.add(endpoint.withWeight(weight));
    }

    final ImmutableSortedSet<Endpoint> endpoints = builder.build();
    if (logger().isDebugEnabled()) {
        logger().debug("{} Resolved: {} (TTL: {})", logPrefix(),
                endpoints.stream().map(e -> e.authority() + '/' + e.weight()).collect(Collectors.joining(", ")),
                ttl);
    }

    return endpoints;
}

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From source file:io.vertx.core.dns.impl.DnsClientImpl.java

License:Open Source License

@Override
public DnsClient resolveSRV(String name, Handler<AsyncResult<List<SrvRecord>>> handler) {
    lookupList(name, handler, DnsRecordType.SRV);
    return this;
}

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