Examples with ResolutionResult io.grpc.NameResolver.ResolutionResult used on opensource projects

Example 26 with ResolutionResult

use of io.grpc.NameResolver.ResolutionResult in project grpc-java by grpc.

the class XdsNameResolverTest method retryPolicyInPerMethodConfigGeneratedByResolverIsValid.

@Test
public void retryPolicyInPerMethodConfigGeneratedByResolverIsValid() {
    ServiceConfigParser realParser = new ScParser(true, 5, 5, new AutoConfiguredLoadBalancerFactory("pick-first"));
    resolver = new XdsNameResolver(null, AUTHORITY, realParser, syncContext, scheduler, xdsClientPoolFactory, mockRandom, FilterRegistry.getDefaultRegistry(), null);
    resolver.start(mockListener);
    FakeXdsClient xdsClient = (FakeXdsClient) resolver.getXdsClient();
    RetryPolicy retryPolicy = RetryPolicy.create(4, ImmutableList.of(Code.UNAVAILABLE), Durations.fromMillis(100), Durations.fromMillis(200), null);
    xdsClient.deliverLdsUpdate(Collections.singletonList(Route.forAction(RouteMatch.withPathExactOnly(call1.getFullMethodNameForPath()), RouteAction.forCluster(cluster1, Collections.<HashPolicy>emptyList(), null, retryPolicy), ImmutableMap.<String, FilterConfig>of())));
    verify(mockListener).onResult(resolutionResultCaptor.capture());
    ResolutionResult result = resolutionResultCaptor.getValue();
    InternalConfigSelector configSelector = result.getAttributes().get(InternalConfigSelector.KEY);
    Result selectResult = configSelector.selectConfig(new PickSubchannelArgsImpl(call1.methodDescriptor, new Metadata(), CallOptions.DEFAULT));
    Object config = selectResult.getConfig();
    // Purely validating the data (io.grpc.internal.RetryPolicy).
    // However, there's no public accessor methods the data object.
    assertThat(config.getClass().getName()).isEqualTo("io.grpc.internal.ManagedChannelServiceConfig");
    assertThat(config.toString()).contains(MoreObjects.toStringHelper("RetryPolicy").add("maxAttempts", 4).add("initialBackoffNanos", TimeUnit.MILLISECONDS.toNanos(100)).add("maxBackoffNanos", TimeUnit.MILLISECONDS.toNanos(200)).add("backoffMultiplier", 2D).add("perAttemptRecvTimeoutNanos", null).add("retryableStatusCodes", ImmutableList.of(Code.UNAVAILABLE)).toString());
}

Example 27 with ResolutionResult

use of io.grpc.NameResolver.ResolutionResult in project grpc-java by grpc.

the class XdsNameResolverTest method resolved_fallbackToHttpMaxStreamDurationAsTimeout.

@Test
public void resolved_fallbackToHttpMaxStreamDurationAsTimeout() {
    resolver.start(mockListener);
    FakeXdsClient xdsClient = (FakeXdsClient) resolver.getXdsClient();
    Route route = Route.forAction(RouteMatch.withPathExactOnly(call1.getFullMethodNameForPath()), RouteAction.forCluster(cluster1, Collections.<HashPolicy>emptyList(), null, // per-route timeout unset
    null), ImmutableMap.<String, FilterConfig>of());
    VirtualHost virtualHost = VirtualHost.create("does not matter", Collections.singletonList(AUTHORITY), Collections.singletonList(route), ImmutableMap.<String, FilterConfig>of());
    xdsClient.deliverLdsUpdate(TimeUnit.SECONDS.toNanos(5L), Collections.singletonList(virtualHost));
    verify(mockListener).onResult(resolutionResultCaptor.capture());
    ResolutionResult result = resolutionResultCaptor.getValue();
    InternalConfigSelector configSelector = result.getAttributes().get(InternalConfigSelector.KEY);
    assertCallSelectClusterResult(call1, configSelector, cluster1, 5.0);
}

Example 28 with ResolutionResult

use of io.grpc.NameResolver.ResolutionResult in project grpc-java by grpc.

the class XdsNameResolverTest method resolved_raceBetweenCallAndRepeatedResourceUpdate.

@SuppressWarnings("unchecked")
@Test
public void resolved_raceBetweenCallAndRepeatedResourceUpdate() {
    InternalConfigSelector configSelector = resolveToClusters();
    assertCallSelectClusterResult(call1, configSelector, cluster1, 15.0);
    reset(mockListener);
    FakeXdsClient xdsClient = (FakeXdsClient) resolver.getXdsClient();
    xdsClient.deliverLdsUpdate(Arrays.asList(Route.forAction(RouteMatch.withPathExactOnly(call1.getFullMethodNameForPath()), RouteAction.forCluster("another-cluster", Collections.<HashPolicy>emptyList(), TimeUnit.SECONDS.toNanos(20L), null), ImmutableMap.<String, FilterConfig>of()), Route.forAction(RouteMatch.withPathExactOnly(call2.getFullMethodNameForPath()), RouteAction.forCluster(cluster2, Collections.<HashPolicy>emptyList(), TimeUnit.SECONDS.toNanos(15L), null), ImmutableMap.<String, FilterConfig>of())));
    verify(mockListener).onResult(resolutionResultCaptor.capture());
    ResolutionResult result = resolutionResultCaptor.getValue();
    assertServiceConfigForLoadBalancingConfig(Arrays.asList(cluster1, cluster2, "another-cluster"), (Map<String, ?>) result.getServiceConfig().getConfig());
    xdsClient.deliverLdsUpdate(Arrays.asList(Route.forAction(RouteMatch.withPathExactOnly(call1.getFullMethodNameForPath()), RouteAction.forCluster("another-cluster", Collections.<HashPolicy>emptyList(), TimeUnit.SECONDS.toNanos(15L), null), ImmutableMap.<String, FilterConfig>of()), Route.forAction(RouteMatch.withPathExactOnly(call2.getFullMethodNameForPath()), RouteAction.forCluster(cluster2, Collections.<HashPolicy>emptyList(), TimeUnit.SECONDS.toNanos(15L), null), ImmutableMap.<String, FilterConfig>of())));
    // no cluster added/deleted
    verifyNoMoreInteractions(mockListener);
    assertCallSelectClusterResult(call1, configSelector, "another-cluster", 15.0);
}

Example 29 with ResolutionResult

use of io.grpc.NameResolver.ResolutionResult in project grpc-java by grpc.

the class GrpclbNameResolverTest method resolve_addressFailure_stillLookUpBalancersAndServiceConfig.

@Test
public void resolve_addressFailure_stillLookUpBalancersAndServiceConfig() throws Exception {
    InetAddress lbAddr = InetAddress.getByAddress(new byte[] { 10, 1, 0, 0 });
    int lbPort = 8080;
    // original name in SRV record
    String lbName = "foo.example.com.";
    SrvRecord srvRecord = new SrvRecord(lbName, 8080);
    AddressResolver mockAddressResolver = mock(AddressResolver.class);
    when(mockAddressResolver.resolveAddress(hostName)).thenThrow(new UnknownHostException("I really tried"));
    when(mockAddressResolver.resolveAddress(lbName)).thenReturn(Collections.singletonList(lbAddr));
    ResourceResolver mockResourceResolver = mock(ResourceResolver.class);
    when(mockResourceResolver.resolveTxt(anyString())).thenReturn(Collections.<String>emptyList());
    when(mockResourceResolver.resolveSrv(anyString())).thenReturn(Collections.singletonList(srvRecord));
    resolver.setAddressResolver(mockAddressResolver);
    resolver.setResourceResolver(mockResourceResolver);
    resolver.start(mockListener);
    assertThat(fakeClock.runDueTasks()).isEqualTo(1);
    verify(mockListener).onResult(resultCaptor.capture());
    ResolutionResult result = resultCaptor.getValue();
    assertThat(result.getAddresses()).isEmpty();
    EquivalentAddressGroup resolvedBalancerAddr = Iterables.getOnlyElement(result.getAttributes().get(GrpclbConstants.ATTR_LB_ADDRS));
    assertThat(resolvedBalancerAddr.getAttributes().get(GrpclbConstants.ATTR_LB_ADDR_AUTHORITY)).isEqualTo("foo.example.com");
    InetSocketAddress resolvedBalancerSockAddr = (InetSocketAddress) Iterables.getOnlyElement(resolvedBalancerAddr.getAddresses());
    assertThat(resolvedBalancerSockAddr.getAddress()).isEqualTo(lbAddr);
    assertThat(resolvedBalancerSockAddr.getPort()).isEqualTo(lbPort);
    assertThat(result.getServiceConfig()).isNull();
    verify(mockAddressResolver).resolveAddress(hostName);
    verify(mockResourceResolver).resolveTxt("_grpc_config." + hostName);
    verify(mockResourceResolver).resolveSrv("_grpclb._tcp." + hostName);
}

Example 30 with ResolutionResult

use of io.grpc.NameResolver.ResolutionResult in project grpc-java by grpc.

the class GrpclbNameResolverTest method resolveAll_balancerLookupFails_stillLookUpServiceConfig.

@Test
public void resolveAll_balancerLookupFails_stillLookUpServiceConfig() throws Exception {
    InetAddress backendAddr = InetAddress.getByAddress(new byte[] { 127, 0, 0, 0 });
    AddressResolver mockAddressResolver = mock(AddressResolver.class);
    when(mockAddressResolver.resolveAddress(hostName)).thenReturn(Collections.singletonList(backendAddr));
    ResourceResolver mockResourceResolver = mock(ResourceResolver.class);
    when(mockResourceResolver.resolveTxt(anyString())).thenReturn(Collections.<String>emptyList());
    when(mockResourceResolver.resolveSrv(anyString())).thenThrow(new Exception("something like javax.naming.NamingException"));
    resolver.setAddressResolver(mockAddressResolver);
    resolver.setResourceResolver(mockResourceResolver);
    resolver.start(mockListener);
    assertThat(fakeClock.runDueTasks()).isEqualTo(1);
    verify(mockListener).onResult(resultCaptor.capture());
    ResolutionResult result = resultCaptor.getValue();
    InetSocketAddress resolvedBackendAddr = (InetSocketAddress) Iterables.getOnlyElement(Iterables.getOnlyElement(result.getAddresses()).getAddresses());
    assertThat(resolvedBackendAddr.getAddress()).isEqualTo(backendAddr);
    assertThat(result.getAttributes().get(GrpclbConstants.ATTR_LB_ADDRS)).isNull();
    verify(mockAddressResolver).resolveAddress(hostName);
    verify(mockResourceResolver).resolveTxt("_grpc_config." + hostName);
    verify(mockResourceResolver).resolveSrv("_grpclb._tcp." + hostName);
}