io.netty.channel.sctp.nio

Class NioSctpChannel

java.lang.Object

io.netty.util.DefaultAttributeMap

io.netty.channel.AbstractChannel

io.netty.channel.nio.AbstractNioChannel

io.netty.channel.nio.AbstractNioMessageChannel

io.netty.channel.sctp.nio.NioSctpChannel

All Implemented Interfaces:

Channel, SctpChannel, AttributeMap, Comparable<Channel>

public class NioSctpChannel
extends AbstractNioMessageChannel
implements SctpChannel

SctpChannel implementation which use non-blocking mode and allows to read / write SctpMessages to the underlying SctpChannel. Be aware that not all operations systems support SCTP. Please refer to the documentation of your operation system, to understand what you need to do to use it. Also this feature is only supported on Java 7+.

Nested Class Summary

Nested classes/interfaces inherited from class io.netty.channel.nio.AbstractNioChannel

AbstractNioChannel.AbstractNioUnsafe, AbstractNioChannel.NioUnsafe

Nested classes/interfaces inherited from class io.netty.channel.AbstractChannel

AbstractChannel.AbstractUnsafe

Nested classes/interfaces inherited from interface io.netty.channel.Channel

Channel.Unsafe

Field Summary

Fields inherited from class io.netty.channel.nio.AbstractNioChannel

readInterestOp

Constructor Summary

Constructors

Constructor and Description
NioSctpChannel() Create a new instance
NioSctpChannel(Channel parent, com.sun.nio.sctp.SctpChannel sctpChannel) Create a new instance
NioSctpChannel(com.sun.nio.sctp.SctpChannel sctpChannel) Create a new instance using SctpChannel

Method Summary

Methods

Modifier and Type	Method and Description
Set<InetSocketAddress>	allLocalAddresses() Return all local addresses of the SCTP channel.
ByteBufAllocator	alloc() Return the assigned ByteBufAllocator which will be used to allocate ByteBufs.
Set<InetSocketAddress>	allRemoteAddresses() Return all remote addresses of the SCTP server channel.
com.sun.nio.sctp.Association	association() Returns the underlying SCTP association.
ChannelFuture	bind(SocketAddress localAddress) Request to bind to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	bind(SocketAddress localAddress, ChannelPromise promise) Request to bind to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	bindAddress(InetAddress localAddress) Bind a address to the already bound channel to enable multi-homing.
ChannelFuture	bindAddress(InetAddress localAddress, ChannelPromise promise) Bind a address to the already bound channel to enable multi-homing.
ChannelFuture	close() Request to close this ChannelOutboundInvoker and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	close(ChannelPromise promise) Request to close this ChannelOutboundInvoker and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
SctpChannelConfig	config() Returns the SctpChannelConfig configuration of the channel.
ChannelFuture	connect(SocketAddress remoteAddress) Request to connect to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	connect(SocketAddress remoteAddress, ChannelPromise promise) Request to connect to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	connect(SocketAddress remoteAddress, SocketAddress localAddress) Request to connect to the given SocketAddress while bind to the localAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	connect(SocketAddress remoteAddress, SocketAddress localAddress, ChannelPromise promise) Request to connect to the given SocketAddress while bind to the localAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	deregister() Request to deregister this ChannelOutboundInvoker from the previous assigned EventExecutor and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	deregister(ChannelPromise promise) Request to deregister this ChannelOutboundInvoker from the previous assigned EventExecutor and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	disconnect() Request to disconnect from the remote peer and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
ChannelFuture	disconnect(ChannelPromise promise) Request to disconnect from the remote peer and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
protected void	doBind(SocketAddress localAddress) Bind the Channel to the SocketAddress
protected void	doClose() Close the Channel
protected boolean	doConnect(SocketAddress remoteAddress, SocketAddress localAddress) Connect to the remote peer
protected void	doDisconnect() Disconnect this Channel from its remote peer
protected void	doFinishConnect() Finish the connect
protected int	doReadMessages(List<Object> buf) Read messages into the given array and return the amount which was read.
protected boolean	doWriteMessage(Object msg) Write a message to the underlying Channel.
boolean	isActive() Return true if the Channel is active and so connected.
protected com.sun.nio.sctp.SctpChannel	javaChannel()
InetSocketAddress	localAddress() Returns the local address where this channel is bound to.
protected SocketAddress	localAddress0() Returns the SocketAddress which is bound locally.
ChannelMetadata	metadata() Return the ChannelMetadata of the Channel which describe the nature of the Channel.
ChannelFuture	newFailedFuture(Throwable cause) Create a new ChannelFuture which is marked as failed already.
ChannelProgressivePromise	newProgressivePromise() Return an new ChannelProgressivePromise
ChannelPromise	newPromise() Return a new ChannelPromise.
ChannelFuture	newSucceededFuture() Create a new ChannelFuture which is marked as succeeded already.
SctpServerChannel	parent() Returns the parent of this channel.
ChannelPipeline	pipeline() Return the assigned ChannelPipeline
InetSocketAddress	remoteAddress() Returns the remote address where this channel is connected to.
protected SocketAddress	remoteAddress0() Return the SocketAddress which the Channel is connected to.
ChannelFuture	unbindAddress(InetAddress localAddress) Unbind the address from channel's multi-homing address list.
ChannelFuture	unbindAddress(InetAddress localAddress, ChannelPromise promise) Unbind the address from channel's multi-homing address list.
ChannelPromise	voidPromise() Return a special ChannelPromise which can be reused for different operations.
ChannelFuture	write(Object msg) Request to write a message via this ChannelOutboundInvoker through the ChannelPipeline.
ChannelFuture	write(Object msg, ChannelPromise promise) Request to write a message via this ChannelOutboundInvoker through the ChannelPipeline.
ChannelFuture	writeAndFlush(Object msg) Shortcut for call write(Object) and flush().
ChannelFuture	writeAndFlush(Object msg, ChannelPromise promise) Shortcut for call write(Object, ChannelPromise) and flush().

Methods inherited from class io.netty.channel.nio.AbstractNioMessageChannel

doWrite, newUnsafe

Methods inherited from class io.netty.channel.nio.AbstractNioChannel

doBeginRead, doDeregister, doRegister, eventLoop, isCompatible, isInputShutdown, isOpen, selectionKey, unsafe

Methods inherited from class io.netty.channel.AbstractChannel

alloc, bind, bind, checkEOF, close, close, closeFuture, compareTo, connect, connect, connect, connect, deregister, deregister, disconnect, disconnect, equals, flush, hashCode, invalidateLocalAddress, invalidateRemoteAddress, isRegistered, isWritable, newFailedFuture, newProgressivePromise, newPromise, newSucceededFuture, pipeline, read, toString, voidPromise, write, write, writeAndFlush, writeAndFlush

Methods inherited from class io.netty.util.DefaultAttributeMap

attr

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.netty.channel.Channel

closeFuture, eventLoop, flush, isOpen, isRegistered, isWritable, read, unsafe

Methods inherited from interface io.netty.util.AttributeMap

attr

Methods inherited from interface java.lang.Comparable

compareTo

Constructor Detail

NioSctpChannel

public NioSctpChannel()

Create a new instance

NioSctpChannel

public NioSctpChannel(com.sun.nio.sctp.SctpChannel sctpChannel)

Create a new instance using SctpChannel

NioSctpChannel

public NioSctpChannel(Channel parent,
              com.sun.nio.sctp.SctpChannel sctpChannel)

Create a new instance

Parameters:

parent - the Channel which is the parent of this NioSctpChannel or null.

sctpChannel - the underlying SctpChannel

Method Detail

localAddress

public InetSocketAddress localAddress()

Description copied from interface: Channel

Returns the local address where this channel is bound to. The returned SocketAddress is supposed to be down-cast into more concrete type such as InetSocketAddress to retrieve the detailed information.

Specified by:

localAddress in interface Channel

Specified by:

localAddress in interface SctpChannel

Overrides:

localAddress in class AbstractChannel

Returns:

the local address of this channel. null if this channel is not bound.

remoteAddress

public InetSocketAddress remoteAddress()

Description copied from interface: Channel

Returns the remote address where this channel is connected to. The returned SocketAddress is supposed to be down-cast into more concrete type such as InetSocketAddress to retrieve the detailed information.

Specified by:

remoteAddress in interface Channel

Specified by:

remoteAddress in interface SctpChannel

Overrides:

remoteAddress in class AbstractChannel

Returns:

the remote address of this channel. null if this channel is not connected. If this channel is not connected but it can receive messages from arbitrary remote addresses (e.g. DatagramChannel, use DefaultAddressedEnvelope.recipient() to determine the origination of the received message as this method will return null.

parent

public SctpServerChannel parent()

Description copied from interface: Channel

Returns the parent of this channel.

Specified by:

parent in interface Channel

Specified by:

parent in interface SctpChannel

Overrides:

parent in class AbstractChannel

Returns:

the parent channel. null if this channel does not have a parent channel.

metadata

public ChannelMetadata metadata()

Description copied from interface: Channel

Return the ChannelMetadata of the Channel which describe the nature of the Channel.

Specified by:

metadata in interface Channel

association

public com.sun.nio.sctp.Association association()

Description copied from interface: SctpChannel

Returns the underlying SCTP association.

Specified by:

association in interface SctpChannel

allLocalAddresses

public Set<InetSocketAddress> allLocalAddresses()

Description copied from interface: SctpChannel

Return all local addresses of the SCTP channel. Please note that, it will return more than one address if this channel is using multi-homing

Specified by:

allLocalAddresses in interface SctpChannel

config

public SctpChannelConfig config()

Description copied from interface: SctpChannel

Returns the SctpChannelConfig configuration of the channel.

Specified by:

config in interface Channel

Specified by:

config in interface SctpChannel

allRemoteAddresses

public Set<InetSocketAddress> allRemoteAddresses()

Description copied from interface: SctpChannel

Return all remote addresses of the SCTP server channel. Please note that, it will return more than one address if the remote is using multi-homing.

Specified by:

allRemoteAddresses in interface SctpChannel

javaChannel

protected com.sun.nio.sctp.SctpChannel javaChannel()

Overrides:

javaChannel in class AbstractNioChannel

isActive

public boolean isActive()

Description copied from interface: Channel

Return true if the Channel is active and so connected.

Specified by:

isActive in interface Channel

localAddress0

protected SocketAddress localAddress0()

Description copied from class: AbstractChannel

Returns the SocketAddress which is bound locally.

Specified by:

localAddress0 in class AbstractChannel

remoteAddress0

protected SocketAddress remoteAddress0()

Description copied from class: AbstractChannel

Return the SocketAddress which the Channel is connected to.

Specified by:

remoteAddress0 in class AbstractChannel

doBind

protected void doBind(SocketAddress localAddress)
               throws Exception

Description copied from class: AbstractChannel

Bind the Channel to the SocketAddress

Specified by:

doBind in class AbstractChannel

Throws:

Exception

doConnect

protected boolean doConnect(SocketAddress remoteAddress,
                SocketAddress localAddress)
                     throws Exception

Description copied from class: AbstractNioChannel

Connect to the remote peer

Specified by:

doConnect in class AbstractNioChannel

Throws:

Exception

doFinishConnect

protected void doFinishConnect()
                        throws Exception

Description copied from class: AbstractNioChannel

Finish the connect

Specified by:

doFinishConnect in class AbstractNioChannel

Throws:

Exception

doDisconnect

protected void doDisconnect()
                     throws Exception

Description copied from class: AbstractChannel

Disconnect this Channel from its remote peer

Specified by:

doDisconnect in class AbstractChannel

Throws:

Exception

doClose

protected void doClose()
                throws Exception

Description copied from class: AbstractChannel

Close the Channel

Specified by:

doClose in class AbstractChannel

Throws:

Exception

doReadMessages

protected int doReadMessages(List<Object> buf)
                      throws Exception

Description copied from class: AbstractNioMessageChannel

Read messages into the given array and return the amount which was read.

Specified by:

doReadMessages in class AbstractNioMessageChannel

Throws:

Exception

doWriteMessage

protected boolean doWriteMessage(Object msg)
                          throws Exception

Description copied from class: AbstractNioMessageChannel

Write a message to the underlying Channel.

Specified by:

doWriteMessage in class AbstractNioMessageChannel

Returns:

true if and only if the message has been written

Throws:

Exception

bindAddress

public ChannelFuture bindAddress(InetAddress localAddress)

Description copied from interface: SctpChannel

Bind a address to the already bound channel to enable multi-homing. The Channel bust be bound and yet to be connected.

Specified by:

bindAddress in interface SctpChannel

bindAddress

public ChannelFuture bindAddress(InetAddress localAddress,
                        ChannelPromise promise)

Description copied from interface: SctpChannel

Bind a address to the already bound channel to enable multi-homing. The Channel bust be bound and yet to be connected. Will notify the given ChannelPromise and return a ChannelFuture

Specified by:

bindAddress in interface SctpChannel

unbindAddress

public ChannelFuture unbindAddress(InetAddress localAddress)

Description copied from interface: SctpChannel

Unbind the address from channel's multi-homing address list. The address should be added already in multi-homing address list.

Specified by:

unbindAddress in interface SctpChannel

unbindAddress

public ChannelFuture unbindAddress(InetAddress localAddress,
                          ChannelPromise promise)

Description copied from interface: SctpChannel

Unbind the address from channel's multi-homing address list. The address should be added already in multi-homing address list. Will notify the given ChannelPromise and return a ChannelFuture

Specified by:

unbindAddress in interface SctpChannel

bind

public ChannelFuture bind(SocketAddress localAddress)

Request to bind to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.

This will result in having the ChannelOutboundHandler.bind(ChannelHandlerContext, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

connect

public ChannelFuture connect(SocketAddress remoteAddress)

Request to connect to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.

If the connection fails because of a connection timeout, the ChannelFuture will get failed with a ConnectTimeoutException. If it fails because of connection refused a ConnectException will be used.

This will result in having the ChannelOutboundHandler.connect(ChannelHandlerContext, SocketAddress, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

connect

public ChannelFuture connect(SocketAddress remoteAddress,
                    SocketAddress localAddress)

Request to connect to the given SocketAddress while bind to the localAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.

This will result in having the ChannelOutboundHandler.connect(ChannelHandlerContext, SocketAddress, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

disconnect

public ChannelFuture disconnect()

Request to disconnect from the remote peer and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.

This will result in having the ChannelOutboundHandler.disconnect(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

close

public ChannelFuture close()

Request to close this ChannelOutboundInvoker and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. After it is closed it is not possible to reuse it again.

This will result in having the ChannelOutboundHandler.close(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

deregister

public ChannelFuture deregister()

Request to deregister this ChannelOutboundInvoker from the previous assigned EventExecutor and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.

This will result in having the ChannelOutboundHandler.deregister(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

bind

public ChannelFuture bind(SocketAddress localAddress,
                 ChannelPromise promise)

Request to bind to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelPromise will be notified.

This will result in having the ChannelOutboundHandler.bind(ChannelHandlerContext, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

connect

public ChannelFuture connect(SocketAddress remoteAddress,
                    ChannelPromise promise)

Request to connect to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelFuture will be notified.

If the connection fails because of a connection timeout, the ChannelFuture will get failed with a ConnectTimeoutException. If it fails because of connection refused a ConnectException will be used.

This will result in having the ChannelOutboundHandler.connect(ChannelHandlerContext, SocketAddress, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

connect

public ChannelFuture connect(SocketAddress remoteAddress,
                    SocketAddress localAddress,
                    ChannelPromise promise)

Request to connect to the given SocketAddress while bind to the localAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelPromise will be notified and also returned.

This will result in having the ChannelOutboundHandler.connect(ChannelHandlerContext, SocketAddress, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

disconnect

public ChannelFuture disconnect(ChannelPromise promise)

Request to disconnect from the remote peer and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelPromise will be notified.

This will result in having the ChannelOutboundHandler.disconnect(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

close

public ChannelFuture close(ChannelPromise promise)

Request to close this ChannelOutboundInvoker and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. After it is closed it is not possible to reuse it again. The given ChannelPromise will be notified.

This will result in having the ChannelOutboundHandler.close(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

deregister

public ChannelFuture deregister(ChannelPromise promise)

Request to deregister this ChannelOutboundInvoker from the previous assigned EventExecutor and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelPromise will be notified.

This will result in having the ChannelOutboundHandler.deregister(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.

write

public ChannelFuture write(Object msg)

Request to write a message via this ChannelOutboundInvoker through the ChannelPipeline. This method will not request to actual flush, so be sure to call flush() once you want to request to flush all pending data to the actual transport.

write

public ChannelFuture write(Object msg,
                  ChannelPromise promise)

Request to write a message via this ChannelOutboundInvoker through the ChannelPipeline. This method will not request to actual flush, so be sure to call flush() once you want to request to flush all pending data to the actual transport.

writeAndFlush

public ChannelFuture writeAndFlush(Object msg,
                          ChannelPromise promise)

Shortcut for call write(Object, ChannelPromise) and flush().

writeAndFlush

public ChannelFuture writeAndFlush(Object msg)

Shortcut for call write(Object) and flush().

pipeline

public ChannelPipeline pipeline()

Return the assigned ChannelPipeline

alloc

public ByteBufAllocator alloc()

Return the assigned ByteBufAllocator which will be used to allocate ByteBufs.

newPromise

public ChannelPromise newPromise()

Return a new ChannelPromise.

newProgressivePromise

public ChannelProgressivePromise newProgressivePromise()

Return an new ChannelProgressivePromise

newSucceededFuture

public ChannelFuture newSucceededFuture()

Create a new ChannelFuture which is marked as succeeded already. So Future.isSuccess() will return true. All FutureListener added to it will be notified directly. Also every call of blocking methods will just return without blocking.

newFailedFuture

public ChannelFuture newFailedFuture(Throwable cause)

Create a new ChannelFuture which is marked as failed already. So Future.isSuccess() will return false. All FutureListener added to it will be notified directly. Also every call of blocking methods will just return without blocking.

voidPromise

public ChannelPromise voidPromise()

Return a special ChannelPromise which can be reused for different operations.

It's only supported to use it for ChannelOutboundInvoker.write(Object, ChannelPromise).

Be aware that the returned ChannelPromise will not support most operations and should only be used if you want to save an object allocation for every write operation. You will not be able to detect if the operation was complete, only if it failed as the implementation will call ChannelPipeline.fireExceptionCaught(Throwable) in this case.

Be aware this is an expert feature and should be used with care!