Package org.drasyl.remote.handler.portmapper

Class PortMapper

java.lang.Object

org.drasyl.pipeline.skeleton.HandlerAdapter

org.drasyl.pipeline.skeleton.AddressHandlerAdapter<A>

org.drasyl.pipeline.skeleton.SimpleInboundEventAwareHandler<I,Event,A>

org.drasyl.pipeline.skeleton.SimpleInboundHandler<io.netty.buffer.ByteBuf,InetSocketAddressWrapper>

org.drasyl.remote.handler.portmapper.PortMapper

All Implemented Interfaces:

Handler

public class PortMapper
extends SimpleInboundHandler<io.netty.buffer.ByteBuf,InetSocketAddressWrapper>

This handler tries to create a port forwarding for the UDP server using different methods (PCP, NAT-PMP, UPnP-IGD, etc.). For this purpose, the individual methods are tried one after one. If all methods fail, the program waits for RETRY_DELAY and then tries all methods again. It never gives up.

Field Summary

Fields

Modifier and Type	Field	Description
static Duration	MAPPING_LIFETIME
static Duration	RETRY_DELAY

Constructor Summary

Constructors

Constructor	Description
PortMapper()

Method Summary

Modifier and Type	Method	Description
protected void	matchedInbound(HandlerContext ctx, InetSocketAddressWrapper sender, io.netty.buffer.ByteBuf msg, CompletableFuture<Void> future)	Is called for each message of type SimpleInboundEventAwareHandler.
void	onEvent(HandlerContext ctx, Event event, CompletableFuture<Void> future)	Gets called if a Event was emitted.

Methods inherited from class org.drasyl.pipeline.skeleton.SimpleInboundHandler

matchedEvent

Methods inherited from class org.drasyl.pipeline.skeleton.SimpleInboundEventAwareHandler

acceptEvent, acceptInbound, onInbound

Methods inherited from class org.drasyl.pipeline.skeleton.AddressHandlerAdapter

acceptAddress

Methods inherited from class org.drasyl.pipeline.skeleton.HandlerAdapter

onAdded, onException, onOutbound, onRemoved

Methods inherited from class java.lang.Object

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

Field Detail

MAPPING_LIFETIME

public static final Duration MAPPING_LIFETIME

RETRY_DELAY

public static final Duration RETRY_DELAY

Constructor Detail

PortMapper

public PortMapper()

Method Detail

onEvent

public void onEvent(HandlerContext ctx,
                    Event event,
                    CompletableFuture<Void> future)

Description copied from interface: Handler

Gets called if a Event was emitted.

Specified by:

onEvent in interface Handler

Overrides:

onEvent in class SimpleInboundHandler<io.netty.buffer.ByteBuf,InetSocketAddressWrapper>

Parameters:

ctx - handler context

event - the event

future - a future for the message

matchedInbound

protected void matchedInbound(HandlerContext ctx,
                              InetSocketAddressWrapper sender,
                              io.netty.buffer.ByteBuf msg,
                              CompletableFuture<Void> future)

Description copied from class: SimpleInboundEventAwareHandler

Is called for each message of type SimpleInboundEventAwareHandler.

Specified by:

matchedInbound in class SimpleInboundEventAwareHandler<io.netty.buffer.ByteBuf,Event,InetSocketAddressWrapper>

Parameters:

ctx - handler context

sender - the sender of the message

msg - the message

future - the future of the message