org.apache.flink.runtime.webmonitor.retriever

Class LeaderGatewayRetriever<T extends org.apache.flink.runtime.rpc.RpcGateway>

java.lang.Object

org.apache.flink.runtime.webmonitor.retriever.LeaderRetriever

org.apache.flink.runtime.webmonitor.retriever.LeaderGatewayRetriever<T>

Type Parameters:

T - type of the gateway to retrieve

All Implemented Interfaces:

LeaderRetrievalListener, GatewayRetriever<T>

Direct Known Subclasses:

RpcGatewayRetriever

public abstract class LeaderGatewayRetriever<T extends org.apache.flink.runtime.rpc.RpcGateway>
extends LeaderRetriever
implements GatewayRetriever<T>

Retrieves and stores the leading RpcGateway.

Field Summary

Fields inherited from class org.apache.flink.runtime.webmonitor.retriever.LeaderRetriever

log

Constructor Summary

Constructors

Constructor and Description
LeaderGatewayRetriever()

Method Summary

Modifier and Type	Method and Description
protected abstract CompletableFuture<T>	createGateway(CompletableFuture<org.apache.flink.api.java.tuple.Tuple2<String,UUID>> leaderFuture)
CompletableFuture<T>	getFuture() Get future of object to retrieve.
void	notifyNewLeaderAddress(CompletableFuture<org.apache.flink.api.java.tuple.Tuple2<String,UUID>> newLeaderAddressFuture)

Methods inherited from class org.apache.flink.runtime.webmonitor.retriever.LeaderRetriever

getLeaderFuture, getLeaderNow, handleError, notifyLeaderAddress

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever

getNow

Constructor Detail

LeaderGatewayRetriever

public LeaderGatewayRetriever()

Method Detail

getFuture

public CompletableFuture<T> getFuture()

Description copied from interface: GatewayRetriever

Get future of object to retrieve.

Specified by:

getFuture in interface GatewayRetriever<T extends org.apache.flink.runtime.rpc.RpcGateway>

Returns:

Future object to retrieve

notifyNewLeaderAddress

public void notifyNewLeaderAddress(CompletableFuture<org.apache.flink.api.java.tuple.Tuple2<String,UUID>> newLeaderAddressFuture)

Overrides:

notifyNewLeaderAddress in class LeaderRetriever

createGateway

protected abstract CompletableFuture<T> createGateway(CompletableFuture<org.apache.flink.api.java.tuple.Tuple2<String,UUID>> leaderFuture)