Examples with MongoConfigurationException com.mongodb.MongoConfigurationException used on opensource projects

Example 1 with MongoConfigurationException

use of com.mongodb.MongoConfigurationException in project mongo-java-driver by mongodb.

the class DefaultDnsResolver method resolveHostFromSrvRecords.

/*
      The format of SRV record is
        priority weight port target.
      e.g.
        0 5 5060 example.com.

      The priority and weight are ignored, and we just concatenate the host (after removing the ending '.') and port with a
      ':' in between, as expected by ServerAddress.

      It's required that the srvHost has at least three parts (e.g. foo.bar.baz) and that all of the resolved hosts have a parent
      domain equal to the domain of the srvHost.
    */
@Override
public List<String> resolveHostFromSrvRecords(final String srvHost, final String srvServiceName) {
    String srvHostDomain = srvHost.substring(srvHost.indexOf('.') + 1);
    List<String> srvHostDomainParts = asList(srvHostDomain.split("\\."));
    List<String> hosts = new ArrayList<String>();
    InitialDirContext dirContext = createDnsDirContext();
    try {
        String resourceRecordName = "_" + srvServiceName + "._tcp." + srvHost;
        Attributes attributes = dirContext.getAttributes(resourceRecordName, new String[] { "SRV" });
        Attribute attribute = attributes.get("SRV");
        if (attribute == null) {
            throw new MongoConfigurationException(format("No SRV records available for %s", resourceRecordName));
        }
        NamingEnumeration<?> srvRecordEnumeration = attribute.getAll();
        while (srvRecordEnumeration.hasMore()) {
            String srvRecord = (String) srvRecordEnumeration.next();
            String[] split = srvRecord.split(" ");
            String resolvedHost = split[3].endsWith(".") ? split[3].substring(0, split[3].length() - 1) : split[3];
            String resolvedHostDomain = resolvedHost.substring(resolvedHost.indexOf('.') + 1);
            if (!sameParentDomain(srvHostDomainParts, resolvedHostDomain)) {
                throw new MongoConfigurationException(format("The SRV host name '%s'resolved to a host '%s 'that is not in a sub-domain of the SRV host.", srvHost, resolvedHost));
            }
            hosts.add(resolvedHost + ":" + split[2]);
        }
        if (hosts.isEmpty()) {
            throw new MongoConfigurationException("Unable to find any SRV records for host " + srvHost);
        }
    } catch (NamingException e) {
        throw new MongoConfigurationException("Unable to look up SRV record for host " + srvHost, e);
    } finally {
        try {
            dirContext.close();
        } catch (NamingException e) {
        // ignore
        }
    }
    return hosts;
}

Example 2 with MongoConfigurationException

use of com.mongodb.MongoConfigurationException in project mongo-java-driver by mongodb.

the class SrvPollingProseTests method shouldIgnoreDnsRecordLookupFailure.

// 6. DNS record lookup timeout
// Unimplemented as DnsResolver doesn't throw a different exception for timeouts
// 7. DNS record lookup failure
@Test
public void shouldIgnoreDnsRecordLookupFailure() {
    initCluster(new MongoConfigurationException("Unable to look up SRV record for host " + srvHost, new NamingException()));
    assertEquals(setOf(initialHosts), clusterHostsSet());
}

Example 3 with MongoConfigurationException

use of com.mongodb.MongoConfigurationException in project mongo-java-driver by mongodb.

the class LoadBalancedClusterTest method shouldTimeoutSelectServerWhenThereIsSRVLookupException.

@Test
public void shouldTimeoutSelectServerWhenThereIsSRVLookupException() {
    // given
    String srvHostName = "foo.bar.com";
    ServerAddress resolvedServerAddress = new ServerAddress("host1");
    ClusterableServer expectedServer = mock(ClusterableServer.class);
    ClusterSettings clusterSettings = ClusterSettings.builder().serverSelectionTimeout(10, MILLISECONDS).mode(ClusterConnectionMode.LOAD_BALANCED).srvHost(srvHostName).build();
    ClusterableServerFactory serverFactory = mockServerFactory(resolvedServerAddress, expectedServer);
    DnsSrvRecordMonitorFactory dnsSrvRecordMonitorFactory = mock(DnsSrvRecordMonitorFactory.class);
    when(dnsSrvRecordMonitorFactory.create(eq(srvHostName), eq(clusterSettings.getSrvServiceName()), any())).thenAnswer(invocation -> new TestDnsSrvRecordMonitor(invocation.getArgument(2)).sleepTime(Duration.ofMillis(1)).exception(new MongoConfigurationException("Unable to resolve SRV record")));
    cluster = new LoadBalancedCluster(new ClusterId(), clusterSettings, serverFactory, dnsSrvRecordMonitorFactory);
    MongoTimeoutException exception = assertThrows(MongoTimeoutException.class, () -> cluster.selectServer(mock(ServerSelector.class)));
    assertEquals("Timed out after 10 ms while waiting to resolve SRV records for foo.bar.com. " + "Resolution exception was 'com.mongodb.MongoConfigurationException: Unable to resolve SRV record'", exception.getMessage());
}

Example 4 with MongoConfigurationException

use of com.mongodb.MongoConfigurationException in project mongo-java-driver by mongodb.

the class ServerSelectionSelectionTest method shouldPassAllOutcomes.

@Test
public void shouldPassAllOutcomes() {
    // skip this test because the driver prohibits maxStaleness or tagSets with mode of primary at a much lower level
    assumeTrue(!description.equals("max-staleness/ReplicaSetWithPrimary/MaxStalenessWithModePrimary.json"));
    ServerSelector serverSelector = null;
    List<ServerDescription> suitableServers = buildServerDescriptions(definition.getArray("suitable_servers", new BsonArray()));
    List<ServerDescription> selectedServers = null;
    try {
        serverSelector = getServerSelector();
        selectedServers = serverSelector.select(clusterDescription);
        if (error) {
            fail("Should have thrown exception");
        }
    } catch (MongoConfigurationException e) {
        if (!error) {
            fail("Should not have thrown exception: " + e);
        }
        return;
    }
    assertServers(selectedServers, suitableServers);
    ServerSelector latencyBasedServerSelector = new CompositeServerSelector(asList(serverSelector, new LatencyMinimizingServerSelector(15, TimeUnit.MILLISECONDS)));
    List<ServerDescription> inLatencyWindowServers = buildServerDescriptions(definition.getArray("in_latency_window"));
    List<ServerDescription> latencyBasedSelectedServers = latencyBasedServerSelector.select(clusterDescription);
    assertServers(latencyBasedSelectedServers, inLatencyWindowServers);
}

Example 5 with MongoConfigurationException

use of com.mongodb.MongoConfigurationException in project mongo-java-driver by mongodb.

the class SingleServerCluster method onChange.

@Override
public void onChange(final ServerDescriptionChangedEvent event) {
    withLock(() -> {
        ServerDescription newDescription = event.getNewDescription();
        if (newDescription.isOk()) {
            if (getSettings().getRequiredClusterType() != ClusterType.UNKNOWN && getSettings().getRequiredClusterType() != newDescription.getClusterType()) {
                newDescription = null;
            } else if (getSettings().getRequiredClusterType() == ClusterType.REPLICA_SET && getSettings().getRequiredReplicaSetName() != null) {
                if (!getSettings().getRequiredReplicaSetName().equals(newDescription.getSetName())) {
                    newDescription = ServerDescription.builder(newDescription).exception(new MongoConfigurationException(format("Replica set name '%s' does not match required replica set name of '%s'", newDescription.getSetName(), getSettings().getRequiredReplicaSetName()))).type(ServerType.UNKNOWN).setName(null).ok(false).build();
                    publishDescription(ClusterType.UNKNOWN, newDescription);
                    return;
                }
            }
        }
        publishDescription(newDescription);
    });
}