Examples with Lookup org.xbill.DNS.Lookup used on opensource projects

Example 6 with Lookup

use of org.xbill.DNS.Lookup in project ORCID-Source by ORCID.

the class OrcidDomainValidator method isValid.

public boolean isValid(String hostLocation) {
    try {
        Lookup lookup = new Lookup(hostLocation);
        lookup.run();
        int result = lookup.getResult();
        if (Lookup.SUCCESSFUL == result) {
            return true;
        }
        if (Lookup.HOST_NOT_FOUND == result || Lookup.TYPE_NOT_FOUND == result) {
            return false;
        }
        LOGGER.warn("DNS is not OK, so validating in offline mode");
        return standardDomainValidator.isValid(hostLocation);
    } catch (TextParseException e) {
        return false;
    }
}

Example 7 with Lookup

use of org.xbill.DNS.Lookup in project camel by apache.

the class DnsServiceDiscovery method getServices.

@Override
public List<ServiceDefinition> getServices(String name) {
    final Lookup lookup = cache.computeIfAbsent(name, this::createLookup);
    final Record[] records = lookup.run();
    List<ServiceDefinition> services;
    if (Objects.nonNull(records) && lookup.getResult() == Lookup.SUCCESSFUL) {
        services = Arrays.stream(records).filter(SRVRecord.class::isInstance).map(SRVRecord.class::cast).sorted(COMPARATOR).map(record -> asService(name, record)).collect(Collectors.toList());
    } else {
        services = Collections.emptyList();
    }
    return services;
}

Example 8 with Lookup

use of org.xbill.DNS.Lookup in project opennms by OpenNMS.

the class DnsMonitorIT method testDnsJavaQuadARecord.

@Test
public void testDnsJavaQuadARecord() throws IOException {
    assumeTrue(!Boolean.getBoolean("skipIpv6Tests"));
    final Lookup l = new Lookup("ipv6.example.com", Type.AAAA);
    // make sure we use a temporary cache so don't get results from a previously cached query
    // from another test
    l.setCache(null);
    final SimpleResolver resolver = new SimpleResolver("::1");
    resolver.setPort(9153);
    l.setResolver(resolver);
    l.run();
    System.out.println("result: " + l.getResult());
    if (l.getResult() == Lookup.SUCCESSFUL) {
        System.out.println(l.getAnswers()[0].rdataToString());
    }
    assertTrue(l.getResult() == Lookup.SUCCESSFUL);
}

Example 9 with Lookup

use of org.xbill.DNS.Lookup in project opennms by OpenNMS.

the class DnsMonitorIT method testNoAnswer.

@Test
@JUnitDNSServer(port = 9153, zones = {})
public void testNoAnswer() throws Exception {
    final Lookup l = new Lookup("example.com", Type.AAAA);
    // make sure we use a temporary cache so don't get results from a previously cached query
    // from another test
    l.setCache(null);
    final SimpleResolver resolver = new SimpleResolver("::1");
    resolver.setPort(9153);
    l.setResolver(resolver);
    l.run();
    // and NXRRSET record should be sent meaning that the server has no records for
    // example.com at all.  This results in a null answers.  This is result 4 I think
    System.out.println("result: " + l.getResult());
    final Record[] answers = l.getAnswers();
    assertNull(answers);
}

Example 10 with Lookup

use of org.xbill.DNS.Lookup in project opennms by OpenNMS.

the class DnsUtilsTest method testOrderingOfLookups.

/**
 * Make sure this test is FIRST.
 */
@Test
@Ignore
public void testOrderingOfLookups() throws Exception {
    // String lookup = "www.opennms.org";
    String lookup = "www.facebook.com";
    Record[] fb = new Lookup(lookup, Type.AAAA).run();
    fb = new Lookup(lookup, Type.A).run();
    assertNotNull(fb);
}