DatagramDnsResponse Class — netty Architecture

Source Code

codec-dns/src/main/java/io/netty/handler/codec/dns/DatagramDnsResponse.java lines 26–220

public class DatagramDnsResponse extends DefaultDnsResponse
        implements AddressedEnvelope<DatagramDnsResponse, InetSocketAddress> {

    private final InetSocketAddress sender;
    private final InetSocketAddress recipient;

    /**
     * Creates a new instance with the {@link DnsOpCode#QUERY} {@code opCode} and
     * the {@link DnsResponseCode#NOERROR} {@code RCODE}.
     *
     * @param sender the address of the sender
     * @param recipient the address of the recipient
     * @param id the {@code ID} of the DNS response
     */
    public DatagramDnsResponse(InetSocketAddress sender, InetSocketAddress recipient, int id) {
        this(sender, recipient, id, DnsOpCode.QUERY, DnsResponseCode.NOERROR);
    }

    /**
     * Creates a new instance with the {@link DnsResponseCode#NOERROR} responseCode.
     *
     * @param sender the address of the sender
     * @param recipient the address of the recipient
     * @param id the {@code ID} of the DNS response
     * @param opCode the {@code opCode} of the DNS response
     */
    public DatagramDnsResponse(InetSocketAddress sender, InetSocketAddress recipient, int id, DnsOpCode opCode) {
        this(sender, recipient, id, opCode, DnsResponseCode.NOERROR);
    }

    /**
     * Creates a new instance.
     *
     * @param sender the address of the sender
     * @param recipient the address of the recipient
     * @param id the {@code ID} of the DNS response
     * @param opCode the {@code opCode} of the DNS response
     * @param responseCode the {@code RCODE} of the DNS response
     */
    public DatagramDnsResponse(
            InetSocketAddress sender, InetSocketAddress recipient,
            int id, DnsOpCode opCode, DnsResponseCode responseCode) {
        super(id, opCode, responseCode);

        if (recipient == null && sender == null) {
            throw new NullPointerException("recipient and sender");
        }

        this.sender = sender;
        this.recipient = recipient;
    }

    @Override
    public DatagramDnsResponse content() {
        return this;
    }

    @Override
    public InetSocketAddress sender() {
        return sender;
    }

    @Override
    public InetSocketAddress recipient() {
        return recipient;
    }

    @Override
    public DatagramDnsResponse setAuthoritativeAnswer(boolean authoritativeAnswer) {
        return (DatagramDnsResponse) super.setAuthoritativeAnswer(authoritativeAnswer);
    }

    @Override
    public DatagramDnsResponse setTruncated(boolean truncated) {
        return (DatagramDnsResponse) super.setTruncated(truncated);
    }

    @Override
    public DatagramDnsResponse setRecursionAvailable(boolean recursionAvailable) {
        return (DatagramDnsResponse) super.setRecursionAvailable(recursionAvailable);
    }