QuicConnectionAddress Class — netty Architecture

Source Code

codec-classes-quic/src/main/java/io/netty/handler/codec/quic/QuicConnectionAddress.java lines 30–135

public final class QuicConnectionAddress extends SocketAddress {

    static final QuicConnectionAddress NULL_LEN = new QuicConnectionAddress(EmptyArrays.EMPTY_BYTES);

    /**
     * Special {@link QuicConnectionAddress} that should be used when the connection address should be generated
     * and chosen on the fly.
     */
    public static final QuicConnectionAddress EPHEMERAL = new QuicConnectionAddress(null, false);

    private final String toStr;

    private final ByteBuffer connId;

    /**
     * Create a new instance
     *
     * @param connId the connection id to use.
     */
    public QuicConnectionAddress(byte[] connId) {
        this(ByteBuffer.wrap(connId.clone()), true);
    }

    /**
     * Create a new instance
     *
     * @param connId the connection id to use.
     */
    public QuicConnectionAddress(ByteBuffer connId) {
        this(connId.duplicate(), true);
    }

    private QuicConnectionAddress(ByteBuffer connId, boolean validate) {
        Quic.ensureAvailability();
        if (validate && connId.remaining() > Quiche.QUICHE_MAX_CONN_ID_LEN) {
            throw new IllegalArgumentException("Connection ID can only be of max length "
                    + Quiche.QUICHE_MAX_CONN_ID_LEN);
        }
        if (connId == null) {
            this.connId = null;
            toStr = "QuicConnectionAddress{EPHEMERAL}";
        } else {
            this.connId = connId.asReadOnlyBuffer().duplicate();
            ByteBuf buffer = Unpooled.wrappedBuffer(connId);
            try {
                toStr = "QuicConnectionAddress{" +
                        "connId=" + ByteBufUtil.hexDump(buffer) + '}';
            } finally {
                buffer.release();
            }
        }
    }

    @Override
    public String toString() {
        return toStr;
    }

    @Override
    public int hashCode() {
        if (this == EPHEMERAL) {
            return System.identityHashCode(EPHEMERAL);
        }
        return Objects.hash(connId);
    }

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof QuicConnectionAddress)) {
            return false;
        }
        QuicConnectionAddress address = (QuicConnectionAddress) obj;
        if (obj == this) {
            return true;
        }
        return connId.equals(address.connId);
    }

    ByteBuffer id() {
        if (connId == null) {
            return ByteBuffer.allocate(0);