io.aeron.driver.media

Class UdpNameResolutionTransport

java.lang.Object

io.aeron.driver.media.UdpChannelTransport

io.aeron.driver.media.UdpNameResolutionTransport

All Implemented Interfaces:

AutoCloseable

public final class UdpNameResolutionTransport
extends UdpChannelTransport

UdpChannelTransport specialised for name resolution between MediaDrivers.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	UdpNameResolutionTransport.UdpFrameHandler Handler for processing the received frames.

Field Summary

Fields inherited from class io.aeron.driver.media.UdpChannelTransport

connectAddress, context, errorHandler, isClosed, receiveDatagramChannel, selectionKey, sendDatagramChannel, udpChannel

Constructor Summary

Constructors

Constructor and Description
UdpNameResolutionTransport(UdpChannel udpChannel, InetSocketAddress resolverAddress, UnsafeBuffer unsafeBuffer, MediaDriver.Context context) Construct a new channel transport for name resolution.

Method Summary

Modifier and Type	Method and Description
InetSocketAddress	boundAddress() The InetSocketAddress which the resolver is bound to for listening to requests.
static InetSocketAddress	getInetSocketAddress(String hostAndPort, NameResolver nameResolver) Get the InetSocketAddress for a host and port endpoint using the default name resolver.
static InetSocketAddress	getInterfaceAddress(String addressAndPort) Get InetSocketAddress for an interface of an address and port.
int	poll(UdpNameResolutionTransport.UdpFrameHandler handler, long nowMs) Poll the transport for received frames to be delivered to a UdpNameResolutionTransport.UdpFrameHandler.
int	sendTo(ByteBuffer buffer, InetSocketAddress remoteAddress) Send contents of ByteBuffer to the remote address.

Methods inherited from class io.aeron.driver.media.UdpChannelTransport

bindAddressAndPort, close, isClosed, isMulticast, isValidFrame, multicastTtl, openDatagramChannel, receive, receiveDatagramChannel, receiveHook, registerForRead, sendError, sendHook, socketRcvbufLength, socketSndbufLength, udpChannel, updateEndpoint

Methods inherited from class java.lang.Object

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

Constructor Detail

UdpNameResolutionTransport

public UdpNameResolutionTransport(UdpChannel udpChannel,
                                  InetSocketAddress resolverAddress,
                                  UnsafeBuffer unsafeBuffer,
                                  MediaDriver.Context context)

Construct a new channel transport for name resolution.

Parameters:

udpChannel - associated with the transport.

resolverAddress - to listen on.

unsafeBuffer - for reading frames.

context - for configuration.

Method Detail

poll

public int poll(UdpNameResolutionTransport.UdpFrameHandler handler,
                long nowMs)

Poll the transport for received frames to be delivered to a UdpNameResolutionTransport.UdpFrameHandler.

Parameters:

handler - for processing the frames.

nowMs - current time.

Returns:

number of bytes received.

sendTo

public int sendTo(ByteBuffer buffer,
                  InetSocketAddress remoteAddress)

Send contents of ByteBuffer to the remote address.

Parameters:

buffer - to send containing the payload.

remoteAddress - to send the payload to.

Returns:

number of bytes sent.

boundAddress

public InetSocketAddress boundAddress()

The InetSocketAddress which the resolver is bound to for listening to requests.

Returns:

the InetSocketAddress which the resolver is bound to for listening to requests.

getInterfaceAddress

public static InetSocketAddress getInterfaceAddress(String addressAndPort)

Get InetSocketAddress for an interface of an address and port.

Parameters:

addressAndPort - for the endpoint.

Returns:

the InetSocketAddress if successful or null if not.

getInetSocketAddress

public static InetSocketAddress getInetSocketAddress(String hostAndPort,
                                                     NameResolver nameResolver)

Get the InetSocketAddress for a host and port endpoint using the default name resolver.

Parameters:

hostAndPort - to parse.

nameResolver - to resolve a name to an InetAddress.

Returns:

the resolved InetSocketAddress if successful or null if not.