org.apache.ratis.util

Class PeerProxyMap<PROXY extends Closeable>

java.lang.Object

org.apache.ratis.util.PeerProxyMap<PROXY>

All Implemented Interfaces:

Closeable, AutoCloseable, RaftPeer.Add

public class PeerProxyMap<PROXY extends Closeable>
extends Object
implements RaftPeer.Add, Closeable

A map from peer id to peer and its proxy.

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
PeerProxyMap(String name)
PeerProxyMap(String name, CheckedFunction<RaftPeer,PROXY,IOException> createProxy)

Method Summary

Modifier and Type	Method and Description
void	addRaftPeers(Collection<RaftPeer> newPeers) Add the given peers.
void	close()
CheckedSupplier<PROXY,IOException>	computeIfAbsent(RaftPeer peer) This method is similar to Map.computeIfAbsent(Object, java.util.function.Function) except that this method does not require a mapping function.
PROXY	createProxyImpl(RaftPeer peer)
String	getName()
PROXY	getProxy(RaftPeerId id)
boolean	handleException(RaftPeerId serverId, Throwable e, boolean reconnect)
void	resetProxy(RaftPeerId id)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ratis.protocol.RaftPeer.Add

addRaftPeers

Field Detail

LOG

public static final org.slf4j.Logger LOG

Constructor Detail

PeerProxyMap

public PeerProxyMap(String name,
                    CheckedFunction<RaftPeer,PROXY,IOException> createProxy)

PeerProxyMap

public PeerProxyMap(String name)

Method Detail

getName

public String getName()

getProxy

public PROXY getProxy(RaftPeerId id)
               throws IOException

Throws:

IOException

addRaftPeers

public void addRaftPeers(Collection<RaftPeer> newPeers)

Description copied from interface: RaftPeer.Add

Add the given peers.

Specified by:

addRaftPeers in interface RaftPeer.Add

computeIfAbsent

public CheckedSupplier<PROXY,IOException> computeIfAbsent(RaftPeer peer)

This method is similar to Map.computeIfAbsent(Object, java.util.function.Function) except that this method does not require a mapping function.

Parameters:

peer - the peer for retrieving/building a proxy.

Returns:

a supplier of the proxy for the given peer.

resetProxy

public void resetProxy(RaftPeerId id)

handleException

public boolean handleException(RaftPeerId serverId,
                               Throwable e,
                               boolean reconnect)

Returns:

true if the given throwable is handled; otherwise, the call is an no-op, return false.

createProxyImpl

public PROXY createProxyImpl(RaftPeer peer)
                      throws IOException

Throws:

IOException

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable