Examples with ResolvedAddresses io.grpc.LoadBalancer.ResolvedAddresses used on opensource projects

Example 31 with ResolvedAddresses

use of io.grpc.LoadBalancer.ResolvedAddresses in project grpc-java by grpc.

the class ServiceConfigErrorHandlingTest method emptyAddresses_validConfig_lbDoesNotNeedAddress.

@Test
public void emptyAddresses_validConfig_lbDoesNotNeedAddress() throws Exception {
    FakeNameResolverFactory nameResolverFactory = new FakeNameResolverFactory.Builder(expectedUri).setServers(Collections.<EquivalentAddressGroup>emptyList()).build();
    channelBuilder.nameResolverFactory(nameResolverFactory);
    when(mockLoadBalancer.canHandleEmptyAddressListFromNameResolution()).thenReturn(true);
    Map<String, Object> rawServiceConfig = parseJson("{\"loadBalancingConfig\": [{\"mock_lb\": {\"check\": \"val\"}}]}");
    nameResolverFactory.nextRawServiceConfig.set(rawServiceConfig);
    createChannel();
    ArgumentCaptor<ResolvedAddresses> resultCaptor = ArgumentCaptor.forClass(ResolvedAddresses.class);
    verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
    ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
    assertThat(resolvedAddresses.getAddresses()).isEmpty();
    assertThat(resolvedAddresses.getLoadBalancingPolicyConfig()).isEqualTo("val");
    ;
    verify(mockLoadBalancer, never()).handleNameResolutionError(any(Status.class));
    assertThat(channel.getState(false)).isNotEqualTo(ConnectivityState.TRANSIENT_FAILURE);
}

Example 32 with ResolvedAddresses

use of io.grpc.LoadBalancer.ResolvedAddresses in project grpc-java by grpc.

the class GracefulSwitchLoadBalancerTest method handleResolvedAddressesAndNameResolutionErrorForwardedToLatestPolicy.

@Test
public void handleResolvedAddressesAndNameResolutionErrorForwardedToLatestPolicy() {
    gracefulSwitchLb.switchTo(lbProviders.get(lbPolicies[0]));
    LoadBalancer lb0 = balancers.get(lbPolicies[0]);
    Helper helper0 = helpers.get(lb0);
    SubchannelPicker picker = mock(SubchannelPicker.class);
    helper0.updateBalancingState(READY, picker);
    ResolvedAddresses addresses = newFakeAddresses();
    gracefulSwitchLb.handleResolvedAddresses(addresses);
    verify(lb0).handleResolvedAddresses(addresses);
    gracefulSwitchLb.handleNameResolutionError(Status.DATA_LOSS);
    verify(lb0).handleNameResolutionError(Status.DATA_LOSS);
    gracefulSwitchLb.switchTo(lbProviders.get(lbPolicies[1]));
    LoadBalancer lb1 = balancers.get(lbPolicies[1]);
    addresses = newFakeAddresses();
    gracefulSwitchLb.handleResolvedAddresses(addresses);
    verify(lb0, never()).handleResolvedAddresses(addresses);
    verify(lb1).handleResolvedAddresses(addresses);
    gracefulSwitchLb.handleNameResolutionError(Status.ALREADY_EXISTS);
    verify(lb0, never()).handleNameResolutionError(Status.ALREADY_EXISTS);
    verify(lb1).handleNameResolutionError(Status.ALREADY_EXISTS);
    gracefulSwitchLb.switchTo(lbProviders.get(lbPolicies[2]));
    verify(lb1).shutdown();
    LoadBalancer lb2 = balancers.get(lbPolicies[2]);
    addresses = newFakeAddresses();
    gracefulSwitchLb.handleResolvedAddresses(addresses);
    verify(lb0, never()).handleResolvedAddresses(addresses);
    verify(lb1, never()).handleResolvedAddresses(addresses);
    verify(lb2).handleResolvedAddresses(addresses);
    gracefulSwitchLb.handleNameResolutionError(Status.CANCELLED);
    verify(lb0, never()).handleNameResolutionError(Status.CANCELLED);
    verify(lb1, never()).handleNameResolutionError(Status.CANCELLED);
    verify(lb2).handleNameResolutionError(Status.CANCELLED);
    verifyNoMoreInteractions(lb0, lb1, lb2);
}