DefaultSctpChannelConfig Class — netty Architecture

Source Code

transport-sctp/src/main/java/io/netty/channel/sctp/DefaultSctpChannelConfig.java lines 41–245

public class DefaultSctpChannelConfig extends DefaultChannelConfig implements SctpChannelConfig {

    private final SctpChannel javaChannel;

    public DefaultSctpChannelConfig(io.netty.channel.sctp.SctpChannel channel, SctpChannel javaChannel) {
        super(channel);
        this.javaChannel = ObjectUtil.checkNotNull(javaChannel, "javaChannel");

        // Enable TCP_NODELAY by default if possible.
        if (PlatformDependent.canEnableTcpNoDelayByDefault()) {
            try {
                setSctpNoDelay(true);
            } catch (Exception e) {
                // Ignore.
            }
        }
    }

    @Override
    public Map<ChannelOption<?>, Object> getOptions() {
        return getOptions(
                super.getOptions(),
                SO_RCVBUF, SO_SNDBUF, SCTP_NODELAY, SCTP_INIT_MAXSTREAMS);
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T> T getOption(ChannelOption<T> option) {
        if (option == SO_RCVBUF) {
            return (T) Integer.valueOf(getReceiveBufferSize());
        }
        if (option == SO_SNDBUF) {
            return (T) Integer.valueOf(getSendBufferSize());
        }
        if (option == SCTP_NODELAY) {
            return (T) Boolean.valueOf(isSctpNoDelay());
        }
        if (option == SCTP_INIT_MAXSTREAMS) {
            return (T) getInitMaxStreams();
        }
        return super.getOption(option);
    }

    @Override
    public <T> boolean setOption(ChannelOption<T> option, T value) {
        validate(option, value);

        if (option == SO_RCVBUF) {
            setReceiveBufferSize((Integer) value);
        } else if (option == SO_SNDBUF) {
            setSendBufferSize((Integer) value);
        } else if (option == SCTP_NODELAY) {
            setSctpNoDelay((Boolean) value);
        } else if (option == SCTP_INIT_MAXSTREAMS) {
            setInitMaxStreams((SctpStandardSocketOptions.InitMaxStreams) value);
        } else {
            return super.setOption(option, value);
        }

        return true;
    }

    @Override
    public boolean isSctpNoDelay() {
        try {
            return javaChannel.getOption(SctpStandardSocketOptions.SCTP_NODELAY);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
    }

    @Override
    public SctpChannelConfig setSctpNoDelay(boolean sctpNoDelay) {
        try {
            javaChannel.setOption(SctpStandardSocketOptions.SCTP_NODELAY, sctpNoDelay);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
        return this;
    }