mirror of https://github.com/grpc/grpc-java.git
api,core: Add LoadBalancer.acceptResolvedAddresses() (#9498)
Introduces a new acceptResolvedAddresses() method in LoadBalancer that is to ultimately replace the existing handleResolvedAddresses(). The new method allows the LoadBalancer implementation to reject the given addresses by returning false from the method. The long deprecated handleResolvedAddressGroups is also removed.
This commit is contained in:
Terry Wilson
GitHub
parent
8dbff5ba6a
commit
4b4cb0bd3b
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@ -124,39 +124,46 @@ public abstract class LoadBalancer {
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*
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* <p>Implementations should not modify the given {@code servers}.
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*
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* @param servers the resolved server addresses, never empty.
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* @param attributes extra information from naming system.
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* @deprecated override {@link #handleResolvedAddresses(ResolvedAddresses) instead}
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* @since 1.2.0
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* @param resolvedAddresses the resolved server addresses, attributes, and config.
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* @since 1.21.0
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*/
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@Deprecated
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public void handleResolvedAddressGroups(
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List<EquivalentAddressGroup> servers,
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@NameResolver.ResolutionResultAttr Attributes attributes) {
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public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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if (recursionCount++ == 0) {
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handleResolvedAddresses(
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ResolvedAddresses.newBuilder().setAddresses(servers).setAttributes(attributes).build());
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// Note that the information about the addresses actually being accepted will be lost
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// if you rely on this method for backward compatibility.
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acceptResolvedAddresses(resolvedAddresses);
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}
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recursionCount = 0;
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}
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/**
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* Handles newly resolved server groups and metadata attributes from name resolution system.
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* {@code servers} contained in {@link EquivalentAddressGroup} should be considered equivalent
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* but may be flattened into a single list if needed.
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* Accepts newly resolved addresses from the name resolution system. The {@link
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* EquivalentAddressGroup} addresses should be considered equivalent but may be flattened into a
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* single list if needed.
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*
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* <p>Implementations should not modify the given {@code servers}.
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* <p>Implementations can choose to reject the given addresses by returning {@code false}.
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*
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* <p>Implementations should not modify the given {@code addresses}.
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*
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* @param resolvedAddresses the resolved server addresses, attributes, and config.
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* @since 1.21.0
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* @return {@code true} if the resolved addresses were accepted. {@code false} if rejected.
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* @since 1.49.0
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*/
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@SuppressWarnings("deprecation")
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public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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public boolean acceptResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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if (resolvedAddresses.getAddresses().isEmpty()
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&& !canHandleEmptyAddressListFromNameResolution()) {
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handleNameResolutionError(Status.UNAVAILABLE.withDescription(
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"NameResolver returned no usable address. addrs=" + resolvedAddresses.getAddresses()
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+ ", attrs=" + resolvedAddresses.getAttributes()));
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return false;
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} else {
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if (recursionCount++ == 0) {
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handleResolvedAddressGroups(
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resolvedAddresses.getAddresses(), resolvedAddresses.getAttributes());
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handleResolvedAddresses(resolvedAddresses);
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}
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recursionCount = 0;
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return true;
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}
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}
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/**
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@ -235,13 +235,14 @@ public class LoadBalancerTest {
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@Deprecated
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@Test
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public void handleResolvedAddressGroups_delegatesToHandleResolvedAddresses() {
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public void handleResolvedAddresses_delegatesToAcceptResolvedAddresses() {
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final AtomicReference<ResolvedAddresses> resultCapture = new AtomicReference<>();
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LoadBalancer balancer = new LoadBalancer() {
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@Override
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public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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public boolean acceptResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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resultCapture.set(resolvedAddresses);
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return true;
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}
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@Override
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@ -260,23 +261,22 @@ public class LoadBalancerTest {
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List<EquivalentAddressGroup> servers = Arrays.asList(
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new EquivalentAddressGroup(new SocketAddress(){}),
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new EquivalentAddressGroup(new SocketAddress(){}));
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balancer.handleResolvedAddressGroups(servers, attrs);
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ResolvedAddresses addresses = ResolvedAddresses.newBuilder().setAddresses(servers)
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.setAttributes(attrs).build();
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balancer.handleResolvedAddresses(addresses);
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assertThat(resultCapture.get()).isEqualTo(
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ResolvedAddresses.newBuilder().setAddresses(servers).setAttributes(attrs).build());
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}
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@Deprecated
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@Test
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public void handleResolvedAddresses_delegatesToHandleResolvedAddressGroups() {
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final AtomicReference<List<EquivalentAddressGroup>> serversCapture = new AtomicReference<>();
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final AtomicReference<Attributes> attrsCapture = new AtomicReference<>();
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public void acceptResolvedAddresses_delegatesToHandleResolvedAddressGroups() {
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final AtomicReference<ResolvedAddresses> addressesCapture = new AtomicReference<>();
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LoadBalancer balancer = new LoadBalancer() {
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@Override
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public void handleResolvedAddressGroups(
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List<EquivalentAddressGroup> servers, Attributes attrs) {
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serversCapture.set(servers);
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attrsCapture.set(attrs);
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public void handleResolvedAddresses(ResolvedAddresses addresses) {
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addressesCapture.set(addresses);
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}
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@Override
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@ -295,25 +295,23 @@ public class LoadBalancerTest {
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List<EquivalentAddressGroup> servers = Arrays.asList(
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new EquivalentAddressGroup(new SocketAddress(){}),
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new EquivalentAddressGroup(new SocketAddress(){}));
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balancer.handleResolvedAddresses(
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ResolvedAddresses.newBuilder().setAddresses(servers).setAttributes(attrs).build());
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assertThat(serversCapture.get()).isEqualTo(servers);
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assertThat(attrsCapture.get()).isEqualTo(attrs);
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ResolvedAddresses addresses = ResolvedAddresses.newBuilder().setAddresses(servers)
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.setAttributes(attrs).build();
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balancer.handleResolvedAddresses(addresses);
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assertThat(addressesCapture.get().getAddresses()).isEqualTo(servers);
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assertThat(addressesCapture.get().getAttributes()).isEqualTo(attrs);
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}
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@Deprecated
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@Test
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public void handleResolvedAddresses_noInfiniteLoop() {
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final List<List<EquivalentAddressGroup>> serversCapture = new ArrayList<>();
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final List<Attributes> attrsCapture = new ArrayList<>();
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public void acceptResolvedAddresses_noInfiniteLoop() {
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final List<ResolvedAddresses> addressesCapture = new ArrayList<>();
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LoadBalancer balancer = new LoadBalancer() {
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@Override
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public void handleResolvedAddressGroups(
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List<EquivalentAddressGroup> servers, Attributes attrs) {
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serversCapture.add(servers);
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attrsCapture.add(attrs);
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super.handleResolvedAddressGroups(servers, attrs);
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public void handleResolvedAddresses(ResolvedAddresses addresses) {
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addressesCapture.add(addresses);
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super.handleResolvedAddresses(addresses);
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}
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@Override
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@ -328,12 +326,12 @@ public class LoadBalancerTest {
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List<EquivalentAddressGroup> servers = Arrays.asList(
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new EquivalentAddressGroup(new SocketAddress(){}),
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new EquivalentAddressGroup(new SocketAddress(){}));
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balancer.handleResolvedAddresses(
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ResolvedAddresses.newBuilder().setAddresses(servers).setAttributes(attrs).build());
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assertThat(serversCapture).hasSize(1);
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assertThat(attrsCapture).hasSize(1);
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assertThat(serversCapture.get(0)).isEqualTo(servers);
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assertThat(attrsCapture.get(0)).isEqualTo(attrs);
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ResolvedAddresses addresses = ResolvedAddresses.newBuilder().setAddresses(servers)
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.setAttributes(attrs).build();
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balancer.handleResolvedAddresses(addresses);
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assertThat(addressesCapture).hasSize(1);
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assertThat(addressesCapture.get(0).getAddresses()).isEqualTo(servers);
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assertThat(addressesCapture.get(0).getAttributes()).isEqualTo(attrs);
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}
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private static class NoopHelper extends LoadBalancer.Helper {
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@ -20,11 +20,9 @@ import static com.google.common.base.Preconditions.checkNotNull;
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import com.google.common.annotations.VisibleForTesting;
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import com.google.common.base.MoreObjects;
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import io.grpc.Attributes;
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import io.grpc.ChannelLogger.ChannelLogLevel;
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import io.grpc.ConnectivityState;
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import io.grpc.ConnectivityStateInfo;
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import io.grpc.EquivalentAddressGroup;
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import io.grpc.LoadBalancer;
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import io.grpc.LoadBalancer.Helper;
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import io.grpc.LoadBalancer.PickResult;
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@ -67,10 +65,14 @@ public final class AutoConfiguredLoadBalancerFactory {
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@Override
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@Deprecated
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public void handleResolvedAddressGroups(List<EquivalentAddressGroup> s, Attributes a) {}
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@SuppressWarnings("InlineMeSuggester")
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public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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}
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@Override
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public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {}
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public boolean acceptResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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return true;
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}
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@Override
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public void handleNameResolutionError(Status error) {}
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@ -97,14 +99,10 @@ public final class AutoConfiguredLoadBalancerFactory {
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}
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/**
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* Returns non-OK status if resolvedAddresses is empty and delegate lb requires address ({@link
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* LoadBalancer#canHandleEmptyAddressListFromNameResolution()} returns {@code false}). {@code
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* AutoConfiguredLoadBalancer} doesn't expose {@code
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* canHandleEmptyAddressListFromNameResolution} because it depends on the delegated LB.
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* Returns non-OK status if the delegate rejects the resolvedAddresses (e.g. if it does not
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* support an empty list).
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*/
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Status tryHandleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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List<EquivalentAddressGroup> servers = resolvedAddresses.getAddresses();
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Attributes attributes = resolvedAddresses.getAttributes();
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boolean tryAcceptResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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PolicySelection policySelection =
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(PolicySelection) resolvedAddresses.getLoadBalancingPolicyConfig();
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@ -118,7 +116,7 @@ public final class AutoConfiguredLoadBalancerFactory {
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delegate.shutdown();
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delegateProvider = null;
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delegate = new NoopLoadBalancer();
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return Status.OK;
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return true;
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}
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policySelection =
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new PolicySelection(defaultProvider, /* config= */ null);
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@ -141,20 +139,12 @@ public final class AutoConfiguredLoadBalancerFactory {
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ChannelLogLevel.DEBUG, "Load-balancing config: {0}", policySelection.config);
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}
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LoadBalancer delegate = getDelegate();
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if (resolvedAddresses.getAddresses().isEmpty()
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&& !delegate.canHandleEmptyAddressListFromNameResolution()) {
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return Status.UNAVAILABLE.withDescription(
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"NameResolver returned no usable address. addrs=" + servers + ", attrs=" + attributes);
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} else {
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delegate.handleResolvedAddresses(
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return getDelegate().acceptResolvedAddresses(
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ResolvedAddresses.newBuilder()
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.setAddresses(resolvedAddresses.getAddresses())
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.setAttributes(attributes)
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.setAttributes(resolvedAddresses.getAttributes())
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.setLoadBalancingPolicyConfig(lbConfig)
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.build());
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return Status.OK;
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}
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}
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void handleNameResolutionError(Status error) {
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@ -1852,16 +1852,17 @@ final class ManagedChannelImpl extends ManagedChannel implements
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.set(LoadBalancer.ATTR_HEALTH_CHECKING_CONFIG, healthCheckingConfig)
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.build();
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}
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Attributes attributes = attrBuilder.build();
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Status handleResult = helper.lb.tryHandleResolvedAddresses(
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boolean addressesAccepted = helper.lb.tryAcceptResolvedAddresses(
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ResolvedAddresses.newBuilder()
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.setAddresses(servers)
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.setAttributes(attrBuilder.build())
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.setAttributes(attributes)
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.setLoadBalancingPolicyConfig(effectiveServiceConfig.getLoadBalancingConfig())
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.build());
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if (!handleResult.isOk()) {
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handleErrorInSyncContext(handleResult.augmentDescription(resolver + " was used"));
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if (!addressesAccepted) {
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scheduleExponentialBackOffInSyncContext();
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}
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}
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}
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@ -17,14 +17,10 @@
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package io.grpc.util;
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import com.google.common.base.MoreObjects;
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import io.grpc.Attributes;
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import io.grpc.ConnectivityStateInfo;
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import io.grpc.EquivalentAddressGroup;
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import io.grpc.ExperimentalApi;
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import io.grpc.LoadBalancer;
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import io.grpc.NameResolver;
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import io.grpc.Status;
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import java.util.List;
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@ExperimentalApi("https://github.com/grpc/grpc-java/issues/1771")
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public abstract class ForwardingLoadBalancer extends LoadBalancer {
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@ -34,16 +30,13 @@ public abstract class ForwardingLoadBalancer extends LoadBalancer {
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protected abstract LoadBalancer delegate();
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@Override
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@Deprecated
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public void handleResolvedAddressGroups(
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List<EquivalentAddressGroup> servers,
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@NameResolver.ResolutionResultAttr Attributes attributes) {
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delegate().handleResolvedAddressGroups(servers, attributes);
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public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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delegate().handleResolvedAddresses(resolvedAddresses);
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}
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@Override
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public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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delegate().handleResolvedAddresses(resolvedAddresses);
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public boolean acceptResolvedAddresses(ResolvedAddresses resolvedAddresses) {
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return delegate().acceptResolvedAddresses(resolvedAddresses);
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}
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@Override
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@ -21,8 +21,8 @@ import static org.junit.Assert.assertTrue;
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import static org.mockito.AdditionalAnswers.delegatesTo;
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import static org.mockito.ArgumentMatchers.any;
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import static org.mockito.ArgumentMatchers.eq;
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import static org.mockito.ArgumentMatchers.isA;
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import static org.mockito.ArgumentMatchers.same;
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import static org.mockito.Mockito.atLeast;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.times;
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import static org.mockito.Mockito.verify;
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@ -97,9 +97,8 @@ public class AutoConfiguredLoadBalancerFactoryTest {
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@Before
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public void setUp() {
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when(testLbBalancer.canHandleEmptyAddressListFromNameResolution()).thenCallRealMethod();
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assertThat(testLbBalancer.canHandleEmptyAddressListFromNameResolution()).isFalse();
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when(testLbBalancer2.canHandleEmptyAddressListFromNameResolution()).thenReturn(true);
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when(testLbBalancer.acceptResolvedAddresses(isA(ResolvedAddresses.class))).thenReturn(true);
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when(testLbBalancer2.acceptResolvedAddresses(isA(ResolvedAddresses.class))).thenReturn(true);
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defaultRegistry.register(testLbBalancerProvider);
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defaultRegistry.register(testLbBalancerProvider2);
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}
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@ -171,7 +170,7 @@ public class AutoConfiguredLoadBalancerFactoryTest {
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}
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@Test
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public void handleResolvedAddressGroups_keepOldBalancer() {
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public void acceptResolvedAddresses_keepOldBalancer() {
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final List<EquivalentAddressGroup> servers =
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Collections.singletonList(new EquivalentAddressGroup(new SocketAddress(){}));
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Helper helper = new TestHelper() {
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@ -184,19 +183,19 @@ public class AutoConfiguredLoadBalancerFactoryTest {
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AutoConfiguredLoadBalancer lb = lbf.newLoadBalancer(helper);
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LoadBalancer oldDelegate = lb.getDelegate();
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Status handleResult = lb.tryHandleResolvedAddresses(
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boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
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ResolvedAddresses.newBuilder()
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.setAddresses(servers)
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.setAttributes(Attributes.EMPTY)
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.setLoadBalancingPolicyConfig(null)
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.build());
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assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
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assertThat(addressesAccepted).isTrue();
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assertThat(lb.getDelegate()).isSameInstanceAs(oldDelegate);
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}
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@Test
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public void handleResolvedAddressGroups_shutsDownOldBalancer() throws Exception {
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public void acceptResolvedAddresses_shutsDownOldBalancer() throws Exception {
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Map<String, ?> serviceConfig =
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parseConfig("{\"loadBalancingConfig\": [ {\"round_robin\": { } } ] }");
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ConfigOrError lbConfigs = lbf.parseLoadBalancerPolicy(serviceConfig);
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@ -226,13 +225,13 @@ public class AutoConfiguredLoadBalancerFactoryTest {
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};
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lb.setDelegate(testlb);
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Status handleResult = lb.tryHandleResolvedAddresses(
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boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
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ResolvedAddresses.newBuilder()
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.setAddresses(servers)
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.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
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.build());
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assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
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assertThat(addressesAccepted).isTrue();
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assertThat(lb.getDelegateProvider().getClass().getName()).isEqualTo(
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"io.grpc.util.SecretRoundRobinLoadBalancerProvider$Provider");
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assertTrue(shutdown.get());
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@ -240,7 +239,7 @@ public class AutoConfiguredLoadBalancerFactoryTest {
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@Test
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@SuppressWarnings("unchecked")
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public void handleResolvedAddressGroups_propagateLbConfigToDelegate() throws Exception {
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public void acceptResolvedAddresses_propagateLbConfigToDelegate() throws Exception {
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Map<String, ?> rawServiceConfig =
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parseConfig("{\"loadBalancingConfig\": [ {\"test_lb\": { \"setting1\": \"high\" } } ] }");
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ConfigOrError lbConfigs = lbf.parseLoadBalancerPolicy(rawServiceConfig);
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@ -251,20 +250,19 @@ public class AutoConfiguredLoadBalancerFactoryTest {
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Helper helper = new TestHelper();
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AutoConfiguredLoadBalancer lb = lbf.newLoadBalancer(helper);
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Status handleResult = lb.tryHandleResolvedAddresses(
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boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
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ResolvedAddresses.newBuilder()
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.setAddresses(servers)
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.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
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.build());
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verify(testLbBalancerProvider).newLoadBalancer(same(helper));
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assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
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assertThat(addressesAccepted).isTrue();
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assertThat(lb.getDelegate()).isSameInstanceAs(testLbBalancer);
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ArgumentCaptor<ResolvedAddresses> resultCaptor =
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ArgumentCaptor.forClass(ResolvedAddresses.class);
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verify(testLbBalancer).handleResolvedAddresses(resultCaptor.capture());
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verify(testLbBalancer).acceptResolvedAddresses(resultCaptor.capture());
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assertThat(resultCaptor.getValue().getAddresses()).containsExactlyElementsIn(servers).inOrder();
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verify(testLbBalancer, atLeast(0)).canHandleEmptyAddressListFromNameResolution();
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ArgumentCaptor<Map<String, ?>> lbConfigCaptor = ArgumentCaptor.forClass(Map.class);
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verify(testLbBalancerProvider).parseLoadBalancingPolicyConfig(lbConfigCaptor.capture());
|
||||
assertThat(lbConfigCaptor.getValue()).containsExactly("setting1", "high");
|
||||
|
|
@ -274,7 +272,7 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
parseConfig("{\"loadBalancingConfig\": [ {\"test_lb\": { \"setting1\": \"low\" } } ] }");
|
||||
lbConfigs = lbf.parseLoadBalancerPolicy(rawServiceConfig);
|
||||
|
||||
handleResult = lb.tryHandleResolvedAddresses(
|
||||
addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
|
||||
|
|
@ -282,8 +280,8 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
|
||||
resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(testLbBalancer, times(2)).handleResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
verify(testLbBalancer, times(2)).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactlyElementsIn(servers).inOrder();
|
||||
verify(testLbBalancerProvider, times(2))
|
||||
.parseLoadBalancingPolicyConfig(lbConfigCaptor.capture());
|
||||
|
|
@ -294,7 +292,7 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
}
|
||||
|
||||
@Test
|
||||
public void handleResolvedAddressGroups_propagateAddrsToDelegate() throws Exception {
|
||||
public void acceptResolvedAddresses_propagateAddrsToDelegate() throws Exception {
|
||||
Map<String, ?> rawServiceConfig =
|
||||
parseConfig("{\"loadBalancingConfig\": [ {\"test_lb\": { \"setting1\": \"high\" } } ] }");
|
||||
ConfigOrError lbConfigs = lbf.parseLoadBalancerPolicy(rawServiceConfig);
|
||||
|
|
@ -305,56 +303,58 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
List<EquivalentAddressGroup> servers =
|
||||
Collections.singletonList(new EquivalentAddressGroup(new InetSocketAddress(8080){}));
|
||||
|
||||
Status handleResult = lb.tryHandleResolvedAddresses(
|
||||
boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
|
||||
.build());
|
||||
|
||||
verify(testLbBalancerProvider).newLoadBalancer(same(helper));
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
assertThat(lb.getDelegate()).isSameInstanceAs(testLbBalancer);
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(testLbBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(testLbBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactlyElementsIn(servers).inOrder();
|
||||
|
||||
servers =
|
||||
Collections.singletonList(new EquivalentAddressGroup(new InetSocketAddress(9090){}));
|
||||
handleResult = lb.tryHandleResolvedAddresses(
|
||||
addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
|
||||
.build());
|
||||
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
verify(testLbBalancer, times(2)).handleResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
verify(testLbBalancer, times(2)).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactlyElementsIn(servers).inOrder();
|
||||
}
|
||||
|
||||
@Test
|
||||
public void handleResolvedAddressGroups_delegateDoNotAcceptEmptyAddressList_nothing()
|
||||
public void acceptResolvedAddresses_delegateDoNotAcceptEmptyAddressList_nothing()
|
||||
throws Exception {
|
||||
|
||||
// The test LB will NOT accept the addresses we give them.
|
||||
when(testLbBalancer.acceptResolvedAddresses(isA(ResolvedAddresses.class))).thenReturn(false);
|
||||
|
||||
Helper helper = new TestHelper();
|
||||
AutoConfiguredLoadBalancer lb = lbf.newLoadBalancer(helper);
|
||||
|
||||
Map<String, ?> serviceConfig =
|
||||
parseConfig("{\"loadBalancingConfig\": [ {\"test_lb\": { \"setting1\": \"high\" } } ] }");
|
||||
ConfigOrError lbConfig = lbf.parseLoadBalancerPolicy(serviceConfig);
|
||||
Status handleResult = lb.tryHandleResolvedAddresses(
|
||||
boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(Collections.<EquivalentAddressGroup>emptyList())
|
||||
.setLoadBalancingPolicyConfig(lbConfig.getConfig())
|
||||
.build());
|
||||
|
||||
assertThat(testLbBalancer.canHandleEmptyAddressListFromNameResolution()).isFalse();
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.UNAVAILABLE);
|
||||
assertThat(handleResult.getDescription()).startsWith("NameResolver returned no usable address");
|
||||
assertThat(addressesAccepted).isFalse();
|
||||
assertThat(lb.getDelegate()).isSameInstanceAs(testLbBalancer);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void handleResolvedAddressGroups_delegateAcceptsEmptyAddressList()
|
||||
public void acceptResolvedAddresses_delegateAcceptsEmptyAddressList()
|
||||
throws Exception {
|
||||
Helper helper = new TestHelper();
|
||||
AutoConfiguredLoadBalancer lb = lbf.newLoadBalancer(helper);
|
||||
|
|
@ -363,25 +363,24 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
parseConfig("{\"loadBalancingConfig\": [ {\"test_lb2\": { \"setting1\": \"high\" } } ] }");
|
||||
ConfigOrError lbConfigs =
|
||||
lbf.parseLoadBalancerPolicy(rawServiceConfig);
|
||||
Status handleResult = lb.tryHandleResolvedAddresses(
|
||||
boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(Collections.<EquivalentAddressGroup>emptyList())
|
||||
.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
|
||||
.build());
|
||||
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
assertThat(lb.getDelegate()).isSameInstanceAs(testLbBalancer2);
|
||||
assertThat(testLbBalancer2.canHandleEmptyAddressListFromNameResolution()).isTrue();
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(testLbBalancer2).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(testLbBalancer2).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).isEmpty();
|
||||
assertThat(resultCaptor.getValue().getLoadBalancingPolicyConfig())
|
||||
.isEqualTo(nextParsedConfigOrError2.get().getConfig());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void handleResolvedAddressGroups_useSelectedLbPolicy() throws Exception {
|
||||
public void acceptResolvedAddresses_useSelectedLbPolicy() throws Exception {
|
||||
Map<String, ?> rawServiceConfig =
|
||||
parseConfig("{\"loadBalancingConfig\": [{\"round_robin\": {}}]}");
|
||||
ConfigOrError lbConfigs = lbf.parseLoadBalancerPolicy(rawServiceConfig);
|
||||
|
|
@ -399,18 +398,18 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
}
|
||||
};
|
||||
AutoConfiguredLoadBalancer lb = lbf.newLoadBalancer(helper);
|
||||
Status handleResult = lb.tryHandleResolvedAddresses(
|
||||
boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
|
||||
.build());
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
assertThat(lb.getDelegate().getClass().getName())
|
||||
.isEqualTo("io.grpc.util.RoundRobinLoadBalancer");
|
||||
}
|
||||
|
||||
@Test
|
||||
public void handleResolvedAddressGroups_noLbPolicySelected_defaultToPickFirst() {
|
||||
public void acceptResolvedAddresses_noLbPolicySelected_defaultToPickFirst() {
|
||||
final List<EquivalentAddressGroup> servers =
|
||||
Collections.singletonList(new EquivalentAddressGroup(new SocketAddress(){}));
|
||||
Helper helper = new TestHelper() {
|
||||
|
|
@ -421,27 +420,27 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
}
|
||||
};
|
||||
AutoConfiguredLoadBalancer lb = lbf.newLoadBalancer(helper);
|
||||
Status handleResult = lb.tryHandleResolvedAddresses(
|
||||
boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setLoadBalancingPolicyConfig(null)
|
||||
.build());
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
assertThat(lb.getDelegate()).isInstanceOf(PickFirstLoadBalancer.class);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void handleResolvedAddressGroups_noLbPolicySelected_defaultToCustomDefault() {
|
||||
public void acceptResolvedAddresses_noLbPolicySelected_defaultToCustomDefault() {
|
||||
AutoConfiguredLoadBalancer lb = new AutoConfiguredLoadBalancerFactory("test_lb")
|
||||
.newLoadBalancer(new TestHelper());
|
||||
List<EquivalentAddressGroup> servers =
|
||||
Collections.singletonList(new EquivalentAddressGroup(new SocketAddress(){}));
|
||||
Status handleResult = lb.tryHandleResolvedAddresses(
|
||||
boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setLoadBalancingPolicyConfig(null)
|
||||
.build());
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
assertThat(lb.getDelegate()).isSameInstanceAs(testLbBalancer);
|
||||
}
|
||||
|
||||
|
|
@ -458,13 +457,13 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
|
||||
AutoConfiguredLoadBalancer lb =
|
||||
new AutoConfiguredLoadBalancerFactory(GrpcUtil.DEFAULT_LB_POLICY).newLoadBalancer(helper);
|
||||
Status handleResult = lb.tryHandleResolvedAddresses(
|
||||
boolean addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setAttributes(Attributes.EMPTY)
|
||||
.build());
|
||||
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
verifyNoMoreInteractions(channelLogger);
|
||||
|
||||
ConfigOrError testLbParsedConfig = ConfigOrError.fromConfig("foo");
|
||||
|
|
@ -472,13 +471,13 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
Map<String, ?> serviceConfig =
|
||||
parseConfig("{\"loadBalancingConfig\": [ {\"test_lb\": { } } ] }");
|
||||
ConfigOrError lbConfigs = lbf.parseLoadBalancerPolicy(serviceConfig);
|
||||
handleResult = lb.tryHandleResolvedAddresses(
|
||||
addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
|
||||
.build());
|
||||
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
verify(channelLogger).log(
|
||||
eq(ChannelLogLevel.INFO),
|
||||
eq("Load balancer changed from {0} to {1}"),
|
||||
|
|
@ -495,12 +494,12 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
nextParsedConfigOrError.set(testLbParsedConfig);
|
||||
serviceConfig = parseConfig("{\"loadBalancingConfig\": [ {\"test_lb\": { } } ] }");
|
||||
lbConfigs = lbf.parseLoadBalancerPolicy(serviceConfig);
|
||||
handleResult = lb.tryHandleResolvedAddresses(
|
||||
addressesAccepted = lb.tryAcceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(servers)
|
||||
.setLoadBalancingPolicyConfig(lbConfigs.getConfig())
|
||||
.build());
|
||||
assertThat(handleResult.getCode()).isEqualTo(Status.Code.OK);
|
||||
assertThat(addressesAccepted).isTrue();
|
||||
verify(channelLogger).log(
|
||||
eq(ChannelLogLevel.DEBUG),
|
||||
eq("Load-balancing config: {0}"),
|
||||
|
|
@ -643,14 +642,13 @@ public class AutoConfiguredLoadBalancerFactoryTest {
|
|||
|
||||
@Override
|
||||
@Deprecated
|
||||
public void handleResolvedAddressGroups(
|
||||
List<EquivalentAddressGroup> servers, Attributes attributes) {
|
||||
delegate().handleResolvedAddressGroups(servers, attributes);
|
||||
public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
|
||||
delegate().acceptResolvedAddresses(resolvedAddresses);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
|
||||
delegate().handleResolvedAddresses(resolvedAddresses);
|
||||
public boolean acceptResolvedAddresses(ResolvedAddresses resolvedAddresses) {
|
||||
return delegate().acceptResolvedAddresses(resolvedAddresses);
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -154,6 +154,7 @@ public class ManagedChannelImplIdlenessTest {
|
|||
@Before
|
||||
@SuppressWarnings("deprecation") // For NameResolver.Listener
|
||||
public void setUp() {
|
||||
when(mockLoadBalancer.acceptResolvedAddresses(isA(ResolvedAddresses.class))).thenReturn(true);
|
||||
LoadBalancerRegistry.getDefaultRegistry().register(mockLoadBalancerProvider);
|
||||
when(mockNameResolver.getServiceAuthority()).thenReturn(AUTHORITY);
|
||||
when(mockNameResolverFactory
|
||||
|
|
@ -220,7 +221,7 @@ public class ManagedChannelImplIdlenessTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resolvedAddressCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resolvedAddressCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resolvedAddressCaptor.capture());
|
||||
assertThat(resolvedAddressCaptor.getValue().getAddresses())
|
||||
.containsExactlyElementsIn(servers);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -323,7 +323,7 @@ public class ManagedChannelImplTest {
|
|||
|
||||
@Before
|
||||
public void setUp() throws Exception {
|
||||
when(mockLoadBalancer.canHandleEmptyAddressListFromNameResolution()).thenCallRealMethod();
|
||||
when(mockLoadBalancer.acceptResolvedAddresses(isA(ResolvedAddresses.class))).thenReturn(true);
|
||||
LoadBalancerRegistry.getDefaultRegistry().register(mockLoadBalancerProvider);
|
||||
expectedUri = new URI(TARGET);
|
||||
transports = TestUtils.captureTransports(mockTransportFactory);
|
||||
|
|
@ -928,7 +928,7 @@ public class ManagedChannelImplTest {
|
|||
|
||||
FakeNameResolverFactory.FakeNameResolver resolver = nameResolverFactory.resolvers.get(0);
|
||||
verify(mockLoadBalancerProvider).newLoadBalancer(any(Helper.class));
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resolvedAddressCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resolvedAddressCaptor.capture());
|
||||
assertThat(resolvedAddressCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
|
||||
SubchannelStateListener stateListener1 = mock(SubchannelStateListener.class);
|
||||
|
|
@ -1143,8 +1143,9 @@ public class ManagedChannelImplTest {
|
|||
}
|
||||
|
||||
@Test
|
||||
public void nameResolverReturnsEmptySubLists_becomeErrorByDefault() throws Exception {
|
||||
String errorDescription = "NameResolver returned no usable address";
|
||||
public void nameResolverReturnsEmptySubLists_resolutionRetry() throws Exception {
|
||||
// The mock LB is set to reject the addresses.
|
||||
when(mockLoadBalancer.acceptResolvedAddresses(isA(ResolvedAddresses.class))).thenReturn(false);
|
||||
|
||||
// Pass a FakeNameResolverFactory with an empty list and LB config
|
||||
FakeNameResolverFactory nameResolverFactory =
|
||||
|
|
@ -1157,21 +1158,12 @@ public class ManagedChannelImplTest {
|
|||
channelBuilder.nameResolverFactory(nameResolverFactory);
|
||||
createChannel();
|
||||
|
||||
// LoadBalancer received the error
|
||||
verify(mockLoadBalancerProvider).newLoadBalancer(any(Helper.class));
|
||||
verify(mockLoadBalancer).handleNameResolutionError(statusCaptor.capture());
|
||||
Status status = statusCaptor.getValue();
|
||||
assertSame(Status.Code.UNAVAILABLE, status.getCode());
|
||||
assertThat(status.getDescription()).startsWith(errorDescription);
|
||||
|
||||
// A resolution retry has been scheduled
|
||||
assertEquals(1, timer.numPendingTasks(NAME_RESOLVER_REFRESH_TASK_FILTER));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void nameResolverReturnsEmptySubLists_optionallyAllowed() throws Exception {
|
||||
when(mockLoadBalancer.canHandleEmptyAddressListFromNameResolution()).thenReturn(true);
|
||||
|
||||
// Pass a FakeNameResolverFactory with an empty list and LB config
|
||||
FakeNameResolverFactory nameResolverFactory =
|
||||
new FakeNameResolverFactory.Builder(expectedUri).build();
|
||||
|
|
@ -1193,7 +1185,7 @@ public class ManagedChannelImplTest {
|
|||
verify(mockLoadBalancerProvider).newLoadBalancer(any(Helper.class));
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).isEmpty();
|
||||
assertThat(resultCaptor.getValue().getLoadBalancingPolicyConfig()).isEqualTo(parsedLbConfig);
|
||||
|
||||
|
|
@ -1214,7 +1206,7 @@ public class ManagedChannelImplTest {
|
|||
createChannel();
|
||||
|
||||
verify(mockLoadBalancerProvider).newLoadBalancer(any(Helper.class));
|
||||
doThrow(ex).when(mockLoadBalancer).handleResolvedAddresses(any(ResolvedAddresses.class));
|
||||
doThrow(ex).when(mockLoadBalancer).acceptResolvedAddresses(any(ResolvedAddresses.class));
|
||||
|
||||
// NameResolver returns addresses.
|
||||
nameResolverFactory.allResolved();
|
||||
|
|
@ -1276,7 +1268,7 @@ public class ManagedChannelImplTest {
|
|||
|
||||
// Simulate name resolution results
|
||||
EquivalentAddressGroup addressGroup = new EquivalentAddressGroup(resolvedAddrs);
|
||||
inOrder.verify(mockLoadBalancer).handleResolvedAddresses(resolvedAddressCaptor.capture());
|
||||
inOrder.verify(mockLoadBalancer).acceptResolvedAddresses(resolvedAddressCaptor.capture());
|
||||
assertThat(resolvedAddressCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
Subchannel subchannel =
|
||||
createSubchannelSafely(helper, addressGroup, Attributes.EMPTY, subchannelStateListener);
|
||||
|
|
@ -1426,7 +1418,7 @@ public class ManagedChannelImplTest {
|
|||
|
||||
// Simulate name resolution results
|
||||
EquivalentAddressGroup addressGroup = new EquivalentAddressGroup(resolvedAddrs);
|
||||
inOrder.verify(mockLoadBalancer).handleResolvedAddresses(resolvedAddressCaptor.capture());
|
||||
inOrder.verify(mockLoadBalancer).acceptResolvedAddresses(resolvedAddressCaptor.capture());
|
||||
assertThat(resolvedAddressCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
|
||||
Subchannel subchannel =
|
||||
|
|
@ -3655,7 +3647,7 @@ public class ManagedChannelImplTest {
|
|||
ArgumentCaptor<Helper> helperCaptor = ArgumentCaptor.forClass(Helper.class);
|
||||
verify(mockLoadBalancerProvider).newLoadBalancer(helperCaptor.capture());
|
||||
helper = helperCaptor.getValue();
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(nameResolverFactory.servers)
|
||||
.build());
|
||||
|
|
@ -3761,7 +3753,7 @@ public class ManagedChannelImplTest {
|
|||
ArgumentCaptor<Helper> helperCaptor = ArgumentCaptor.forClass(Helper.class);
|
||||
verify(mockLoadBalancerProvider).newLoadBalancer(helperCaptor.capture());
|
||||
helper = helperCaptor.getValue();
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(
|
||||
ResolvedAddresses.newBuilder()
|
||||
.setAddresses(nameResolverFactory.servers)
|
||||
.build());
|
||||
|
|
@ -4088,7 +4080,7 @@ public class ManagedChannelImplTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
assertThat(resultCaptor.getValue().getAttributes().get(InternalConfigSelector.KEY)).isNull();
|
||||
verify(mockLoadBalancer, never()).handleNameResolutionError(any(Status.class));
|
||||
|
|
@ -4126,7 +4118,7 @@ public class ManagedChannelImplTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
assertThat(resultCaptor.getValue().getAttributes().get(InternalConfigSelector.KEY)).isNull();
|
||||
verify(mockLoadBalancer, never()).handleNameResolutionError(any(Status.class));
|
||||
|
|
@ -4156,7 +4148,7 @@ public class ManagedChannelImplTest {
|
|||
createChannel();
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
verify(mockLoadBalancer, never()).handleNameResolutionError(any(Status.class));
|
||||
|
||||
|
|
@ -4172,7 +4164,7 @@ public class ManagedChannelImplTest {
|
|||
nameResolverFactory.allResolved();
|
||||
|
||||
resultCaptor = ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer, times(2)).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer, times(2)).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
verify(mockLoadBalancer, never()).handleNameResolutionError(any(Status.class));
|
||||
} finally {
|
||||
|
|
@ -4206,7 +4198,7 @@ public class ManagedChannelImplTest {
|
|||
createChannel();
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
verify(mockLoadBalancer, never()).handleNameResolutionError(any(Status.class));
|
||||
} finally {
|
||||
|
|
@ -4234,7 +4226,7 @@ public class ManagedChannelImplTest {
|
|||
createChannel();
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
verify(mockLoadBalancer, never()).handleNameResolutionError(any(Status.class));
|
||||
} finally {
|
||||
|
|
@ -4260,7 +4252,7 @@ public class ManagedChannelImplTest {
|
|||
createChannel();
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAddresses()).containsExactly(addressGroup);
|
||||
verify(mockLoadBalancer, never()).handleNameResolutionError(any(Status.class));
|
||||
} finally {
|
||||
|
|
@ -4340,7 +4332,7 @@ public class ManagedChannelImplTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
assertThat(resultCaptor.getValue().getAttributes()
|
||||
.get(LoadBalancer.ATTR_HEALTH_CHECKING_CONFIG))
|
||||
.containsExactly("serviceName", "service1");
|
||||
|
|
|
|||
|
|
@ -192,7 +192,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
@Before
|
||||
public void setUp() throws Exception {
|
||||
when(mockLoadBalancer.canHandleEmptyAddressListFromNameResolution()).thenCallRealMethod();
|
||||
mockLoadBalancer.setAcceptAddresses(true);
|
||||
LoadBalancerRegistry.getDefaultRegistry().register(mockLoadBalancerProvider);
|
||||
expectedUri = new URI(TARGET);
|
||||
when(mockTransportFactory.getScheduledExecutorService())
|
||||
|
|
@ -268,7 +268,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
|
||||
assertThat(resolvedAddresses.getAddresses()).containsExactly(addressGroup);
|
||||
assertThat(resolvedAddresses.getLoadBalancingPolicyConfig()).isEqualTo("12");
|
||||
|
|
@ -280,19 +280,14 @@ public class ServiceConfigErrorHandlingTest {
|
|||
nameResolverFactory.servers.clear();
|
||||
|
||||
// 2nd resolution
|
||||
mockLoadBalancer.setAcceptAddresses(false);
|
||||
nameResolverFactory.allResolved();
|
||||
|
||||
// 2nd service config without addresses
|
||||
ArgumentCaptor<Status> statusCaptor = ArgumentCaptor.forClass(Status.class);
|
||||
verify(mockLoadBalancer, never()).handleResolvedAddresses(any(ResolvedAddresses.class));
|
||||
verify(mockLoadBalancer).handleNameResolutionError(statusCaptor.capture());
|
||||
assertThat(statusCaptor.getValue().getCode()).isEqualTo(Status.Code.UNAVAILABLE);
|
||||
assertThat(statusCaptor.getValue().getDescription())
|
||||
.contains("NameResolver returned no usable address.");
|
||||
assertThat(channel.getState(true)).isEqualTo(ConnectivityState.TRANSIENT_FAILURE);
|
||||
assertWithMessage("Empty address should schedule NameResolver retry")
|
||||
.that(getNameResolverRefresh())
|
||||
.isNotNull();
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(any(ResolvedAddresses.class));
|
||||
|
||||
// A resolution retry has been scheduled
|
||||
assertEquals(1, timer.numPendingTasks(NAME_RESOLVER_REFRESH_TASK_FILTER));
|
||||
}
|
||||
|
||||
@Test
|
||||
|
|
@ -302,7 +297,6 @@ public class ServiceConfigErrorHandlingTest {
|
|||
.setServers(Collections.emptyList())
|
||||
.build();
|
||||
channelBuilder.nameResolverFactory(nameResolverFactory);
|
||||
when(mockLoadBalancer.canHandleEmptyAddressListFromNameResolution()).thenReturn(true);
|
||||
|
||||
Map<String, Object> rawServiceConfig =
|
||||
parseJson("{\"loadBalancingConfig\": [{\"mock_lb\": {\"check\": \"val\"}}]}");
|
||||
|
|
@ -312,7 +306,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
|
||||
ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
|
||||
assertThat(resolvedAddresses.getAddresses()).isEmpty();
|
||||
|
|
@ -338,7 +332,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
|
||||
assertThat(resolvedAddresses.getAddresses()).containsExactly(addressGroup);
|
||||
assertThat(resolvedAddresses.getLoadBalancingPolicyConfig()).isEqualTo("foo");
|
||||
|
|
@ -360,7 +354,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
|
||||
assertThat(resolvedAddresses.getAddresses()).containsExactly(addressGroup);
|
||||
assertThat(resolvedAddresses.getLoadBalancingPolicyConfig()).isNull();
|
||||
|
|
@ -386,7 +380,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
|
||||
assertThat(resolvedAddresses.getAddresses()).containsExactly(addressGroup);
|
||||
assertThat(resolvedAddresses.getLoadBalancingPolicyConfig()).isEqualTo("foo");
|
||||
|
|
@ -431,7 +425,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
|
||||
ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
|
||||
assertThat(resolvedAddresses.getAddresses()).containsExactly(addressGroup);
|
||||
|
|
@ -462,7 +456,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
|
||||
assertThat(resolvedAddresses.getAddresses()).containsExactly(addressGroup);
|
||||
assertThat(resolvedAddresses.getLoadBalancingPolicyConfig()).isEqualTo("1st raw config");
|
||||
|
|
@ -477,7 +471,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
nextLbPolicyConfigError.set(Status.UNKNOWN);
|
||||
nameResolverFactory.allResolved();
|
||||
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
ResolvedAddresses newResolvedAddress = resultCaptor.getValue();
|
||||
// should use previous service config because new service config is invalid.
|
||||
assertThat(newResolvedAddress.getLoadBalancingPolicyConfig()).isEqualTo("1st raw config");
|
||||
|
|
@ -510,7 +504,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
ArgumentCaptor<ResolvedAddresses> resultCaptor =
|
||||
ArgumentCaptor.forClass(ResolvedAddresses.class);
|
||||
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer).acceptResolvedAddresses(resultCaptor.capture());
|
||||
ResolvedAddresses resolvedAddresses = resultCaptor.getValue();
|
||||
assertThat(resolvedAddresses.getAddresses()).containsExactly(addressGroup);
|
||||
// should use previous service config because new resolution result is no config.
|
||||
|
|
@ -522,7 +516,7 @@ public class ServiceConfigErrorHandlingTest {
|
|||
nameResolverFactory.nextRawServiceConfig.set(null);
|
||||
nameResolverFactory.allResolved();
|
||||
|
||||
verify(mockLoadBalancer, times(2)).handleResolvedAddresses(resultCaptor.capture());
|
||||
verify(mockLoadBalancer, times(2)).acceptResolvedAddresses(resultCaptor.capture());
|
||||
ResolvedAddresses newResolvedAddress = resultCaptor.getValue();
|
||||
assertThat(newResolvedAddress.getLoadBalancingPolicyConfig()).isEqualTo("mate");
|
||||
assertThat(newResolvedAddress.getAttributes().get(InternalConfigSelector.KEY))
|
||||
|
|
@ -658,6 +652,8 @@ public class ServiceConfigErrorHandlingTest {
|
|||
|
||||
private static class FakeLoadBalancer extends LoadBalancer {
|
||||
|
||||
private boolean acceptAddresses = true;
|
||||
|
||||
@Nullable
|
||||
private Helper helper;
|
||||
|
||||
|
|
@ -665,6 +661,15 @@ public class ServiceConfigErrorHandlingTest {
|
|||
this.helper = helper;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean acceptResolvedAddresses(ResolvedAddresses resolvedAddresses) {
|
||||
return acceptAddresses;
|
||||
}
|
||||
|
||||
public void setAcceptAddresses(boolean acceptAddresses) {
|
||||
this.acceptAddresses = acceptAddresses;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void handleNameResolutionError(final Status error) {
|
||||
helper.updateBalancingState(ConnectivityState.TRANSIENT_FAILURE,
|
||||
|
|
|
|||
|
|
@ -568,7 +568,7 @@ public class CachingRlsLbClientTest {
|
|||
LoadBalancer loadBalancer = new LoadBalancer() {
|
||||
|
||||
@Override
|
||||
public void handleResolvedAddresses(ResolvedAddresses resolvedAddresses) {
|
||||
public boolean acceptResolvedAddresses(ResolvedAddresses resolvedAddresses) {
|
||||
Map<?, ?> config = (Map<?, ?>) resolvedAddresses.getLoadBalancingPolicyConfig();
|
||||
if (DEFAULT_TARGET.equals(config.get("target"))) {
|
||||
helper.updateBalancingState(
|
||||
|
|
@ -590,6 +590,8 @@ public class CachingRlsLbClientTest {
|
|||
}
|
||||
});
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
|
|||
Loading…
Reference in New Issue