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

Example 11 with ResolutionResult

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

the class XdsNameResolverTest method resolved_faultDelayInLdsUpdate_callWithEarlyDeadline.

@Test
public void resolved_faultDelayInLdsUpdate_callWithEarlyDeadline() {
    resolver.start(mockListener);
    FakeXdsClient xdsClient = (FakeXdsClient) resolver.getXdsClient();
    // 50%
    when(mockRandom.nextInt(1000_000)).thenReturn(500_000);
    FaultConfig httpFilterFaultConfig = FaultConfig.create(FaultDelay.forFixedDelay(5000L, FaultConfig.FractionalPercent.perMillion(1000_000)), null, null);
    xdsClient.deliverLdsUpdateWithFaultInjection(cluster1, httpFilterFaultConfig, null, null, null);
    verify(mockListener).onResult(resolutionResultCaptor.capture());
    ResolutionResult result = resolutionResultCaptor.getValue();
    InternalConfigSelector configSelector = result.getAttributes().get(InternalConfigSelector.KEY);
    Deadline.Ticker fakeTicker = new Deadline.Ticker() {

        @Override
        public long nanoTime() {
            return fakeClock.getTicker().read();
        }
    };
    ClientCall.Listener<Void> observer = startNewCall(TestMethodDescriptors.voidMethod(), configSelector, Collections.<String, String>emptyMap(), CallOptions.DEFAULT.withDeadline(Deadline.after(4000, TimeUnit.NANOSECONDS, fakeTicker)));
    assertThat(testCall).isNull();
    verifyRpcDelayedThenAborted(observer, 4000L, Status.DEADLINE_EXCEEDED.withDescription("Deadline exceeded after up to 5000 ns of fault-injected delay:" + " Deadline exceeded after 0.000004000s. "));
}

Example 12 with ResolutionResult

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

the class ManagedChannelImplTest method channelTracing_nameResolvedEvent_zeorAndNonzeroBackends.

@Test
public void channelTracing_nameResolvedEvent_zeorAndNonzeroBackends() throws Exception {
    timer.forwardNanos(1234);
    channelBuilder.maxTraceEvents(10);
    List<EquivalentAddressGroup> servers = new ArrayList<>();
    servers.add(new EquivalentAddressGroup(socketAddress));
    FakeNameResolverFactory nameResolverFactory = new FakeNameResolverFactory.Builder(expectedUri).setServers(servers).build();
    channelBuilder.nameResolverFactory(nameResolverFactory);
    createChannel();
    int prevSize = getStats(channel).channelTrace.events.size();
    ResolutionResult resolutionResult1 = ResolutionResult.newBuilder().setAddresses(Collections.singletonList(new EquivalentAddressGroup(Arrays.asList(new SocketAddress() {
    }, new SocketAddress() {
    })))).build();
    nameResolverFactory.resolvers.get(0).listener.onResult(resolutionResult1);
    assertThat(getStats(channel).channelTrace.events).hasSize(prevSize);
    prevSize = getStats(channel).channelTrace.events.size();
    nameResolverFactory.resolvers.get(0).listener.onError(Status.INTERNAL);
    assertThat(getStats(channel).channelTrace.events).hasSize(prevSize + 1);
    prevSize = getStats(channel).channelTrace.events.size();
    nameResolverFactory.resolvers.get(0).listener.onError(Status.INTERNAL);
    assertThat(getStats(channel).channelTrace.events).hasSize(prevSize);
    prevSize = getStats(channel).channelTrace.events.size();
    ResolutionResult resolutionResult2 = ResolutionResult.newBuilder().setAddresses(Collections.singletonList(new EquivalentAddressGroup(Arrays.asList(new SocketAddress() {
    }, new SocketAddress() {
    })))).build();
    nameResolverFactory.resolvers.get(0).listener.onResult(resolutionResult2);
    assertThat(getStats(channel).channelTrace.events).hasSize(prevSize + 1);
}

Example 13 with ResolutionResult

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

the class ManagedChannelImplIdlenessTest method deliverResolutionResult.

private void deliverResolutionResult() {
    verify(mockNameResolver).start(nameResolverListenerCaptor.capture());
    // Simulate new address resolved to make sure the LoadBalancer is correctly linked to
    // the NameResolver.
    ResolutionResult resolutionResult = ResolutionResult.newBuilder().setAddresses(servers).setAttributes(Attributes.EMPTY).build();
    nameResolverListenerCaptor.getValue().onResult(resolutionResult);
    executor.runDueTasks();
}

Example 14 with ResolutionResult

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

the class DnsNameResolverTest method resolve_emptyResult.

@Test
public void resolve_emptyResult() throws Exception {
    DnsNameResolver.enableTxt = true;
    DnsNameResolver nr = newResolver("dns:///addr.fake:1234", 443);
    nr.setAddressResolver(new AddressResolver() {

        @Override
        public List<InetAddress> resolveAddress(String host) throws Exception {
            return Collections.emptyList();
        }
    });
    ResourceResolver mockResourceResolver = mock(ResourceResolver.class);
    when(mockResourceResolver.resolveTxt(anyString())).thenReturn(Collections.<String>emptyList());
    nr.setResourceResolver(mockResourceResolver);
    nr.start(mockListener);
    assertThat(fakeExecutor.runDueTasks()).isEqualTo(1);
    ArgumentCaptor<ResolutionResult> ac = ArgumentCaptor.forClass(ResolutionResult.class);
    verify(mockListener).onResult(ac.capture());
    verifyNoMoreInteractions(mockListener);
    assertThat(ac.getValue().getAddresses()).isEmpty();
    assertThat(ac.getValue().getAttributes()).isEqualTo(Attributes.EMPTY);
    assertThat(ac.getValue().getServiceConfig()).isNull();
    verify(mockResourceResolver, never()).resolveSrv(anyString());
}

Example 15 with ResolutionResult

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

the class DnsNameResolverTest method resolve_serviceConfigLookupFails_nullServiceConfig.

@Test
public void resolve_serviceConfigLookupFails_nullServiceConfig() throws Exception {
    DnsNameResolver.enableTxt = true;
    InetAddress backendAddr = InetAddresses.fromInteger(0x7f000001);
    AddressResolver mockAddressResolver = mock(AddressResolver.class);
    when(mockAddressResolver.resolveAddress(anyString())).thenReturn(Collections.singletonList(backendAddr));
    String name = "foo.googleapis.com";
    ResourceResolver mockResourceResolver = mock(ResourceResolver.class);
    when(mockResourceResolver.resolveTxt(anyString())).thenThrow(new Exception("something like javax.naming.NamingException"));
    DnsNameResolver resolver = newResolver(name, 81);
    resolver.setAddressResolver(mockAddressResolver);
    resolver.setResourceResolver(mockResourceResolver);
    resolver.start(mockListener);
    assertEquals(1, fakeExecutor.runDueTasks());
    verify(mockListener).onResult(resultCaptor.capture());
    ResolutionResult result = resultCaptor.getValue();
    InetSocketAddress resolvedBackendAddr = (InetSocketAddress) Iterables.getOnlyElement(Iterables.getOnlyElement(result.getAddresses()).getAddresses());
    assertThat(resolvedBackendAddr.getAddress()).isEqualTo(backendAddr);
    verify(mockAddressResolver).resolveAddress(name);
    assertThat(result.getAttributes()).isEqualTo(Attributes.EMPTY);
    assertThat(result.getServiceConfig()).isNull();
    verify(mockResourceResolver).resolveTxt(anyString());
}