NioSctpServerChannel Class — netty Architecture

Source Code

transport-sctp/src/main/java/io/netty/channel/sctp/nio/NioSctpServerChannel.java lines 47–239

public class NioSctpServerChannel extends AbstractNioMessageChannel
        implements io.netty.channel.sctp.SctpServerChannel {
    private static final ChannelMetadata METADATA = new ChannelMetadata(false, 16);

    private static SctpServerChannel newSocket() {
        try {
            return SctpServerChannel.open();
        } catch (IOException e) {
            throw new ChannelException(
                    "Failed to open a server socket.", e);
        }
    }

    private final SctpServerChannelConfig config;

    /**
     * Create a new instance
     */
    public NioSctpServerChannel() {
        super(null, newSocket(), SelectionKey.OP_ACCEPT);
        config = new NioSctpServerChannelConfig(this, javaChannel());
    }

    @Override
    public ChannelMetadata metadata() {
        return METADATA;
    }

    @Override
    public Set<InetSocketAddress> allLocalAddresses() {
        try {
            final Set<SocketAddress> allLocalAddresses = javaChannel().getAllLocalAddresses();
            final Set<InetSocketAddress> addresses = new LinkedHashSet<InetSocketAddress>(allLocalAddresses.size());
            for (SocketAddress socketAddress : allLocalAddresses) {
                addresses.add((InetSocketAddress) socketAddress);
            }
            return addresses;
        } catch (Throwable ignored) {
            return Collections.emptySet();
        }
    }

    @Override
    public SctpServerChannelConfig config() {
        return config;
    }

    @Override
    public boolean isActive() {
        return isOpen() && !allLocalAddresses().isEmpty();
    }

    @Override
    public InetSocketAddress remoteAddress() {
        return null;
    }

    @Override
    public InetSocketAddress localAddress() {
        return (InetSocketAddress) super.localAddress();
    }

    @Override
    protected SctpServerChannel javaChannel() {
        return (SctpServerChannel) super.javaChannel();
    }

    @Override
    protected SocketAddress localAddress0() {
        try {
            Iterator<SocketAddress> i = javaChannel().getAllLocalAddresses().iterator();
            if (i.hasNext()) {
                return i.next();
            }
        } catch (IOException e) {
            // ignore
        }
        return null;
    }

    @Override