io.servicetalk.dns.discovery.netty

Class RetryingDnsServiceDiscovererFilter

Object

ServiceDiscovererFilter<String,InetAddress,ServiceDiscovererEvent<InetAddress>>

RetryingDnsServiceDiscovererFilter

All Implemented Interfaces:

ServiceDiscoverer<String,InetAddress,ServiceDiscovererEvent<InetAddress>>, AsyncCloseable, ListenableAsyncCloseable

public class RetryingDnsServiceDiscovererFilter
extends ServiceDiscovererFilter<String,InetAddress,ServiceDiscovererEvent<InetAddress>>

Applies a retry strategy to a DNS ServiceDiscoverer.

Throwables that pass shouldRetry(Throwable) are logged, and the retry strategy is invoked. All other Throwables will result in the Publisher terminating with the Throwable.

Constructor Summary

Constructors

Constructor and Description
RetryingDnsServiceDiscovererFilter(ServiceDiscoverer<String,InetAddress,ServiceDiscovererEvent<InetAddress>> delegate, BiIntFunction<Throwable,Completable> retryStrategy) Create an instance of the filter.

Method Summary

Modifier and Type	Method and Description
Publisher<ServiceDiscovererEvent<InetAddress>>	discover(String unresolvedAddress)
protected boolean	shouldRetry(Throwable cause) Determines which Throwables should be retried.

Methods inherited from class ServiceDiscovererFilter

closeAsync, closeAsyncGracefully, onClose

Methods inherited from class Object

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

Constructor Detail

RetryingDnsServiceDiscovererFilter

public RetryingDnsServiceDiscovererFilter(ServiceDiscoverer<String,InetAddress,ServiceDiscovererEvent<InetAddress>> delegate,
                                          BiIntFunction<Throwable,Completable> retryStrategy)

Create an instance of the filter.

Parameters:

delegate - the ServiceDiscoverer to delegate to

retryStrategy - the retry strategy to apply

Method Detail

discover

public Publisher<ServiceDiscovererEvent<InetAddress>> discover(String unresolvedAddress)

Specified by:

discover in interface ServiceDiscoverer<String,InetAddress,ServiceDiscovererEvent<InetAddress>>

Overrides:

discover in class ServiceDiscovererFilter<String,InetAddress,ServiceDiscovererEvent<InetAddress>>

shouldRetry

protected boolean shouldRetry(Throwable cause)

Determines which Throwables should be retried.

Parameters:

cause - the Throwable to check

Returns:

true to retry, false to terminate the Publisher