Class ServiceConfigState

java.lang.Object
io.grpc.internal.ServiceConfigState
final class ServiceConfigState extends Object
ServiceConfigState holds the state of the current service config. It must be mutated and read from ManagedChannelImpl constructor or the provided syncContext.

  • Field Details

  • Constructor Details

    • ServiceConfigState

      ServiceConfigState(@Nullable ManagedChannelServiceConfig defaultServiceConfig, boolean lookUpServiceConfig)
      Construct new instance.
      Parameters:
      defaultServiceConfig - The initial service config, or null if absent.
      lookUpServiceConfig - true if service config updates might occur.

  • Method Details

    • shouldWaitOnServiceConfig

      boolean shouldWaitOnServiceConfig()
      Returns true if it RPCs should wait on a service config resolution. This can return false if:
      • There is a valid service config from the name resolver
      • There is a valid default service config and a service config error from the name resolver
      • No service config from the name resolver, and no intent to lookup a service config.

      In the final case, the default service config may be present or absent, and will be the current service config.

    • getCurrent

      @Nullable NameResolver.ConfigOrError getCurrent()
      Gets the current service config or error.
      Throws:
      IllegalStateException - if the service config has not yet been updated.

    • update

      void update(@Nullable NameResolver.ConfigOrError coe)

    • expectUpdates

      boolean expectUpdates()