Package org.drasyl.remote.handler

Class InternetDiscoveryHandler

java.lang.Object

org.drasyl.pipeline.skeleton.HandlerAdapter

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

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

org.drasyl.pipeline.skeleton.SimpleDuplexEventAwareHandler<I,Event,O,A>

org.drasyl.pipeline.skeleton.SimpleDuplexHandler<AddressedIntermediateEnvelope<? extends com.google.protobuf.MessageLite>,SerializedApplicationMessage,Address>

org.drasyl.remote.handler.InternetDiscoveryHandler

All Implemented Interfaces:

Handler

public class InternetDiscoveryHandler
extends SimpleDuplexHandler<AddressedIntermediateEnvelope<? extends com.google.protobuf.MessageLite>,SerializedApplicationMessage,Address>

This handler performs the following tasks, which help to communicate with nodes located in other networks:

• Joins one or more super peers or acts itself as a super peer (super peers act as registries of available nodes on the network. they can be used as message relays and help to traverse NATs).
• Tracks which nodes are being communicated with and tries to establish direct connections to these nodes with the help of a super peer.
• Routes messages to the recipient. If no route is known, the message is relayed to a super peer (our default gateway).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	InternetDiscoveryHandler.Ping

Field Summary

Fields

Modifier and Type	Field	Description
static String	INTERNET_DISCOVERY_HANDLER

Constructor Summary

Constructors

Constructor	Description
InternetDiscoveryHandler(DrasylConfig config)

Method Summary

Modifier and Type	Method	Description
void	eventTriggered(HandlerContext ctx, Event event, CompletableFuture<Void> future)	Gets called if a Event was emitted.
protected void	matchedRead(HandlerContext ctx, Address sender, AddressedIntermediateEnvelope<? extends com.google.protobuf.MessageLite> envelope, CompletableFuture<Void> future)	Is called for each message of type SimpleInboundEventAwareHandler.
protected void	matchedWrite(HandlerContext ctx, Address recipient, SerializedApplicationMessage msg, CompletableFuture<Void> future)	Is called for each message of type SimpleDuplexEventAwareHandler.

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

matchedEventTriggered

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

acceptOutbound, write

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

acceptEvent, acceptInbound, read

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

acceptAddress

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

exceptionCaught, handlerAdded, handlerRemoved

Methods inherited from class java.lang.Object

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

Field Detail

INTERNET_DISCOVERY_HANDLER

public static final String INTERNET_DISCOVERY_HANDLER

See Also:

Constant Field Values

Constructor Detail

InternetDiscoveryHandler

public InternetDiscoveryHandler(DrasylConfig config)

Method Detail

eventTriggered

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

Description copied from interface: Handler

Gets called if a Event was emitted.

Specified by:

eventTriggered in interface Handler

Overrides:

eventTriggered in class SimpleDuplexHandler<AddressedIntermediateEnvelope<? extends com.google.protobuf.MessageLite>,SerializedApplicationMessage,Address>

Parameters:

ctx - handler context

event - the event

future - a future for the message

matchedWrite

protected void matchedWrite(HandlerContext ctx,
                            Address recipient,
                            SerializedApplicationMessage msg,
                            CompletableFuture<Void> future)

Description copied from class: SimpleDuplexEventAwareHandler

Is called for each message of type SimpleDuplexEventAwareHandler.

Specified by:

matchedWrite in class SimpleDuplexEventAwareHandler<AddressedIntermediateEnvelope<? extends com.google.protobuf.MessageLite>,Event,SerializedApplicationMessage,Address>

Parameters:

ctx - handler context

recipient - the recipient of the message

msg - the message

future - a future for the message

matchedRead

protected void matchedRead(HandlerContext ctx,
                           Address sender,
                           AddressedIntermediateEnvelope<? extends com.google.protobuf.MessageLite> envelope,
                           CompletableFuture<Void> future)

Description copied from class: SimpleInboundEventAwareHandler

Is called for each message of type SimpleInboundEventAwareHandler.

Specified by:

matchedRead in class SimpleInboundEventAwareHandler<AddressedIntermediateEnvelope<? extends com.google.protobuf.MessageLite>,Event,Address>

Parameters:

ctx - handler context

sender - the sender of the message

envelope - the message

future - the future of the message