org.elasticsearch.transport.nio

Class SocketEventHandler

java.lang.Object

org.elasticsearch.transport.nio.EventHandler

org.elasticsearch.transport.nio.SocketEventHandler

public class SocketEventHandler
extends EventHandler

Event handler designed to handle events from non-server sockets

Constructor Summary

Constructors

Constructor and Description
SocketEventHandler(org.apache.logging.log4j.Logger logger, java.util.function.BiConsumer<NioSocketChannel,java.lang.Throwable> exceptionHandler)

Method Summary

Modifier and Type	Method and Description
void	connectException(NioSocketChannel channel, java.lang.Exception exception) This method is called when an attempt to connect a channel throws an exception.
void	genericChannelException(NioSocketChannel channel, java.lang.Exception exception) This method is called when handling an event from a channel fails due to an unexpected exception.
void	handleConnect(NioSocketChannel channel) This method is called when a NioSocketChannel is successfully connected.
void	handleRead(NioSocketChannel channel) This method is called when a channel signals it is ready for be read.
void	handleRegistration(NioSocketChannel channel) This method is called when a NioSocketChannel is successfully registered.
void	handleWrite(NioSocketChannel channel) This method is called when a channel signals it is ready to receive writes.
void	readException(NioSocketChannel channel, java.lang.Exception exception) This method is called when an attempt to read from a channel throws an exception.
void	registrationException(NioSocketChannel channel, java.lang.Exception exception) This method is called when an attempt to register a channel throws an exception.
void	writeException(NioSocketChannel channel, java.lang.Exception exception) This method is called when an attempt to write to a channel throws an exception.

Methods inherited from class org.elasticsearch.transport.nio.EventHandler

closeSelectorException, handleClose, selectException, uncaughtException

Methods inherited from class java.lang.Object

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

Constructor Detail

SocketEventHandler

public SocketEventHandler(org.apache.logging.log4j.Logger logger,
                          java.util.function.BiConsumer<NioSocketChannel,java.lang.Throwable> exceptionHandler)

Method Detail

handleRegistration

public void handleRegistration(NioSocketChannel channel)

This method is called when a NioSocketChannel is successfully registered. It should only be called once per channel.

Parameters:

channel - that was registered

registrationException

public void registrationException(NioSocketChannel channel,
                                  java.lang.Exception exception)

This method is called when an attempt to register a channel throws an exception.

Parameters:

channel - that was registered

exception - that occurred

handleConnect

public void handleConnect(NioSocketChannel channel)

This method is called when a NioSocketChannel is successfully connected. It should only be called once per channel.

Parameters:

channel - that was registered

connectException

public void connectException(NioSocketChannel channel,
                             java.lang.Exception exception)

This method is called when an attempt to connect a channel throws an exception.

Parameters:

channel - that was connecting

exception - that occurred

handleRead

public void handleRead(NioSocketChannel channel)
                throws java.io.IOException

This method is called when a channel signals it is ready for be read. All of the read logic should occur in this call.

Parameters:

channel - that can be read

Throws:

java.io.IOException

readException

public void readException(NioSocketChannel channel,
                          java.lang.Exception exception)

This method is called when an attempt to read from a channel throws an exception.

Parameters:

channel - that was being read

exception - that occurred

handleWrite

public void handleWrite(NioSocketChannel channel)
                 throws java.io.IOException

This method is called when a channel signals it is ready to receive writes. All of the write logic should occur in this call.

Parameters:

channel - that can be read

Throws:

java.io.IOException

writeException

public void writeException(NioSocketChannel channel,
                           java.lang.Exception exception)

This method is called when an attempt to write to a channel throws an exception.

Parameters:

channel - that was being written to

exception - that occurred

genericChannelException

public void genericChannelException(NioSocketChannel channel,
                                    java.lang.Exception exception)

This method is called when handling an event from a channel fails due to an unexpected exception. An example would be if checking ready ops on a SelectionKey threw CancelledKeyException.

Parameters:

channel - that caused the exception

exception - that was thrown