Class RandomLoadBalancer

Returns random service instances.

Inheritance

System.Object

RandomLoadBalancer

Implements

ILoadBalancer

Namespace: Steeltoe.Discovery.HttpClients.LoadBalancers

Assembly: Steeltoe.Discovery.HttpClients.dll

Syntax

public sealed class RandomLoadBalancer : object, ILoadBalancer

Constructors

RandomLoadBalancer(ServiceInstancesResolver, ILogger<RandomLoadBalancer>)

Initializes a new instance of the RandomLoadBalancer class.

Declaration

public RandomLoadBalancer(ServiceInstancesResolver serviceInstancesResolver, ILogger<RandomLoadBalancer> logger)

Parameters

Type	Name	Description
ServiceInstancesResolver	serviceInstancesResolver	Used to retrieve the available service instances.
ILogger<RandomLoadBalancer>	logger	Used for internal logging. Pass to disable logging.

Methods

ResolveServiceInstanceAsync(Uri, CancellationToken)

Evaluates a URI for a hostname that can be resolved into a service instance.

Declaration

public async Task<Uri> ResolveServiceInstanceAsync(Uri requestUri, CancellationToken cancellationToken)

Parameters

Type	Name	Description
Uri	requestUri	A URI containing a service name that can be resolved into one or more service instances.
CancellationToken	cancellationToken	The token to monitor for cancellation requests.

Returns

Type	Description
Task<Uri>	The original URI, with the scheme and service name replaced by the scheme, host and port of a service instance.

UpdateStatisticsAsync(Uri, Uri, Nullable<TimeSpan>, Nullable<Exception>, CancellationToken)

A mechanism for tracking statistics for service instances.

Declaration

public Task UpdateStatisticsAsync(Uri requestUri, Uri serviceInstanceUri, TimeSpan? responseTime, Exception? exception, CancellationToken cancellationToken)

Parameters

Type	Name	Description
Uri	requestUri	The original request URI.
Uri	serviceInstanceUri	The URI resolved by the load balancer.
System.Nullable<TimeSpan>	responseTime	The amount of time taken for a remote call to complete.
System.Nullable<Exception>	exception	Any exception thrown during calls to a resolved service instance.
CancellationToken	cancellationToken	The token to monitor for cancellation requests.

Returns

Type	Description
Task

Implements

ILoadBalancer