- All Implemented Interfaces:
- Closeable,- AutoCloseable,- Channel,- InterruptibleChannel
 An SCTPServerChannel is created by invoking the
 open method of this class. A newly-created SCTP server
 channel is open but not yet bound. An attempt to invoke the
 accept method of an unbound channel will cause the
 NotYetBoundException to be thrown. An SCTP server
 channel can be bound by invoking one of the
 bind methods defined by this class.
 
 Socket options are configured using the
 setOption method. SCTP server socket
 channels support the following options:
 
Additional (implementation specific) options may also be supported. The list of options supported is obtained by invoking the
Option Name Description SCTP_INIT_MAXSTREAMSThe maximum number of streams requested by the local endpoint during association initialization 
supportedOptions method.
 SCTP server channels are safe for use by multiple concurrent threads.
- Since:
- 1.7
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Constructor SummaryConstructorsModifierConstructorDescriptionprotectedSctpServerChannel(SelectorProvider provider) Initializes a new instance of this class.
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Method SummaryModifier and TypeMethodDescriptionabstract SctpChannelaccept()Accepts an association on this channel's socket.final SctpServerChannelbind(SocketAddress local) Binds the channel's socket to a local address and configures the socket to listen for associations.abstract SctpServerChannelbind(SocketAddress local, int backlog) Binds the channel's socket to a local address and configures the socket to listen for associations.abstract SctpServerChannelbindAddress(InetAddress address) Adds the given address to the bound addresses for the channel's socket.abstract Set<SocketAddress> Returns all of the socket addresses to which this channel's socket is bound.abstract <T> TgetOption(SctpSocketOption<T> name) Returns the value of a socket option.static SctpServerChannelopen()Opens an SCTP server channel.abstract <T> SctpServerChannelsetOption(SctpSocketOption<T> name, T value) Sets the value of a socket option.abstract Set<SctpSocketOption<?>> Returns a set of the socket options supported by this channel.abstract SctpServerChannelunbindAddress(InetAddress address) Removes the given address from the bound addresses for the channel's socket.final intvalidOps()Returns an operation set identifying this channel's supported operations.Methods declared in class java.nio.channels.spi.AbstractSelectableChannelblockingLock, configureBlocking, implCloseChannel, implCloseSelectableChannel, implConfigureBlocking, isBlocking, isRegistered, keyFor, provider, registerMethods declared in class java.nio.channels.SelectableChannelregisterMethods declared in class java.nio.channels.spi.AbstractInterruptibleChannelbegin, close, end, isOpen
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Constructor Details- 
SctpServerChannelInitializes a new instance of this class.- Parameters:
- provider- The selector provider for this channel
 
 
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Method Details- 
openOpens an SCTP server channel.The new channel's socket is initially unbound; it must be bound to a specific address via one of its socket's bindmethods before associations can be accepted.- Returns:
- A new SCTP server channel
- Throws:
- UnsupportedOperationException- If the SCTP protocol is not supported
- IOException- If an I/O error occurs
 
- 
acceptAccepts an association on this channel's socket.If this channel is in non-blocking mode then this method will immediately return nullif there are no pending associations. Otherwise it will block indefinitely until a new association is available or an I/O error occurs.The SCTPChannelreturned by this method, if any, will be in blocking mode regardless of the blocking mode of this channel.If a security manager has been installed then for each new association this method verifies that the address and port number of the assocaitions's remote peer are permitted by the security manager's checkAcceptmethod.- Returns:
- The SCTP channel for the new association, or nullif this channel is in non-blocking mode and no association is available to be accepted
- Throws:
- ClosedChannelException- If this channel is closed
- AsynchronousCloseException- If another thread closes this channel while the accept operation is in progress
- ClosedByInterruptException- If another thread interrupts the current thread while the accept operation is in progress, thereby closing the channel and setting the current thread's interrupt status
- NotYetBoundException- If this channel's socket has not yet been bound
- SecurityException- If a security manager has been installed and it does not permit access to the remote peer of the new association
- IOException- If some other I/O error occurs
 
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bindBinds the channel's socket to a local address and configures the socket to listen for associations.This method works as if invoking it were equivalent to evaluating the expression: bind(local, 0); - Parameters:
- local- The local address to bind the socket, or- nullto bind the socket to an automatically assigned socket address
- Returns:
- This channel
- Throws:
- ClosedChannelException- If this channel is closed
- AlreadyBoundException- If this channel is already bound
- UnsupportedAddressTypeException- If the type of the given address is not supported
- SecurityException- If a security manager has been installed and its- checkListenmethod denies the operation
- IOException- If some other I/O error occurs
 
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bindBinds the channel's socket to a local address and configures the socket to listen for associations.This method is used to establish a relationship between the socket and the local address. Once a relationship is established then the socket remains bound until the channel is closed. This relationship may not necesssarily be with the address localas it may be removed byunbindAddress, but there will always be at least one local address bound to the channel's socket once an invocation of this method successfully completes.Once the channel's socket has been successfully bound to a specific address, that is not automatically assigned, more addresses may be bound to it using bindAddress, or removed usingunbindAddress.The backlog parameter is the maximum number of pending associations on the socket. Its exact semantics are implementation specific. An implementation may impose an implementation specific maximum length or may choose to ignore the parameter. If the backlog parameter has the value 0, or a negative value, then an implementation specific default is used.- Parameters:
- local- The local address to bind the socket, or- nullto bind the socket to an automatically assigned socket address
- backlog- The maximum number of pending associations
- Returns:
- This channel
- Throws:
- ClosedChannelException- If this channel is closed
- AlreadyBoundException- If this channel is already bound
- UnsupportedAddressTypeException- If the type of the given address is not supported
- SecurityException- If a security manager has been installed and its- checkListenmethod denies the operation
- IOException- If some other I/O error occurs
 
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bindAddressAdds the given address to the bound addresses for the channel's socket.The given address must not be the wildcardaddress. The channel must be first bound usingbindbefore invoking this method, otherwiseNotYetBoundExceptionis thrown. Thebindmethod takes aSocketAddressas its argument which typically contains a port number as well as an address. Addresses subquently bound using this method are simply addresses as the SCTP port number remains the same for the lifetime of the channel.New associations accepted after this method successfully completes will be associated with the given address. - Parameters:
- address- The address to add to the bound addresses for the socket
- Returns:
- This channel
- Throws:
- ClosedChannelException- If this channel is closed
- NotYetBoundException- If this channel is not yet bound
- AlreadyBoundException- If this channel is already bound to the given address
- IllegalArgumentException- If address is- nullor the- wildcardaddress
- IOException- If some other I/O error occurs
 
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unbindAddressRemoves the given address from the bound addresses for the channel's socket.The given address must not be the wildcardaddress. The channel must be first bound usingbindbefore invoking this method, otherwiseNotYetBoundExceptionis thrown. If this method is invoked on a channel that does not haveaddressas one of its bound addresses, or that has only one local address bound to it, then this method throwsIllegalUnbindException. The initial address that the channel's socket is bound to usingbindmay be removed from the bound addresses for the channel's socket.New associations accepted after this method successfully completes will not be associated with the given address. - Parameters:
- address- The address to remove from the bound addresses for the socket
- Returns:
- This channel
- Throws:
- ClosedChannelException- If this channel is closed
- NotYetBoundException- If this channel is not yet bound
- IllegalArgumentException- If address is- nullor the- wildcardaddress
- IllegalUnbindException- If the implementation does not support removing addresses from a listening socket,- addressis not bound to the channel's socket, or the channel has only one address bound to it
- IOException- If some other I/O error occurs
 
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getAllLocalAddressesReturns all of the socket addresses to which this channel's socket is bound.- Returns:
- All the socket addresses that this channel's socket is
          bound to, or an empty Setif the channel's socket is not bound
- Throws:
- ClosedChannelException- If the channel is closed
- IOException- If an I/O error occurs
 
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getOptionReturns the value of a socket option.- Type Parameters:
- T- The type of the socket option value
- Parameters:
- name- The socket option
- Returns:
- The value of the socket option. A value of nullmay be a valid value for some socket options.
- Throws:
- UnsupportedOperationException- If the socket option is not supported by this channel
- ClosedChannelException- If this channel is closed
- IOException- If an I/O error occurs
- See Also:
 
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setOptionpublic abstract <T> SctpServerChannel setOption(SctpSocketOption<T> name, T value) throws IOException Sets the value of a socket option.- Type Parameters:
- T- The type of the socket option value
- Parameters:
- name- The socket option
- value- The value of the socket option. A value of- nullmay be a valid value for some socket options.
- Returns:
- This channel
- Throws:
- UnsupportedOperationException- If the socket option is not supported by this channel
- IllegalArgumentException- If the value is not a valid value for this socket option
- ClosedChannelException- If this channel is closed
- IOException- If an I/O error occurs
- See Also:
 
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supportedOptionsReturns a set of the socket options supported by this channel.This method will continue to return the set of options even after the channel has been closed. - Returns:
- A set of the socket options supported by this channel
 
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validOpspublic final int validOps()Returns an operation set identifying this channel's supported operations.SCTP server channels only support the accepting of new associations, so this method returns SelectionKey.OP_ACCEPT.- Specified by:
- validOpsin class- SelectableChannel
- Returns:
- The valid-operation set
 
 
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