Class ChildLoadBalancerHelper

java.lang.Object

io.grpc.LoadBalancer.Helper

io.grpc.util.ForwardingLoadBalancerHelper

io.grpc.rls.ChildLoadBalancerHelper

final class ChildLoadBalancerHelper
extends ForwardingLoadBalancerHelper

A delegating LoadBalancer.Helper for the child load blanacer. The child load-balancer notifies the higher level load-blancer with aggregated status instead of each individual child load-blanacer's state.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static final class	ChildLoadBalancerHelper.ChildLoadBalancerHelperProvider

Field Summary

Fields

Modifier and Type	Field	Description
private final LoadBalancer.SubchannelPicker	picker
private final LoadBalancer.Helper	rlsHelper
private final SubchannelStateManager	subchannelStateManager
private final String	target

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ChildLoadBalancerHelper(String target, LoadBalancer.Helper rlsHelper, SubchannelStateManager subchannelStateManager, LoadBalancer.SubchannelPicker picker)

Method Summary

Modifier and Type	Method	Description
protected LoadBalancer.Helper	delegate()	Returns the underlying helper.
void	updateBalancingState(ConnectivityState newState, LoadBalancer.SubchannelPicker unused)	Updates balancing state from one or more subchannels tracked in the SubchannelStateManager.

Methods inherited from class ForwardingLoadBalancerHelper

createOobChannel, createOobChannel, createResolvingOobChannel, createResolvingOobChannelBuilder, createResolvingOobChannelBuilder, createSubchannel, getAuthority, getChannelCredentials, getChannelLogger, getChannelTarget, getMetricRecorder, getNameResolverArgs, getNameResolverRegistry, getScheduledExecutorService, getSynchronizationContext, getUnsafeChannelCredentials, ignoreRefreshNameResolutionCheck, refreshNameResolution, toString, updateOobChannelAddresses, updateOobChannelAddresses

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

target

private final String target

rlsHelper

private final LoadBalancer.Helper rlsHelper

subchannelStateManager

private final SubchannelStateManager subchannelStateManager

picker

private final LoadBalancer.SubchannelPicker picker

Constructor Details

ChildLoadBalancerHelper

private ChildLoadBalancerHelper(String target,
 LoadBalancer.Helper rlsHelper,
 SubchannelStateManager subchannelStateManager,
 LoadBalancer.SubchannelPicker picker)

Method Details

delegate

protected LoadBalancer.Helper delegate()

Description copied from class: ForwardingLoadBalancerHelper

Returns the underlying helper.

Specified by:

delegate in class ForwardingLoadBalancerHelper

updateBalancingState

public void updateBalancingState(@Nonnull
 ConnectivityState newState,
 @Nonnull
 LoadBalancer.SubchannelPicker unused)

Updates balancing state from one or more subchannels tracked in the SubchannelStateManager. The passed picker will be ignored, instead the picker which governs many subchannels/pickers will be reported to the parent load-balancer.

Overrides:

updateBalancingState in class ForwardingLoadBalancerHelper