Method constructor

src/sdam/server_description.ts:97–138

* Create a ServerDescription * @internal * * @param address - The address of the server * @param hello - An optional hello response for this server

(
    address: HostAddress | string,
    hello?: Document,
    options: ServerDescriptionOptions = {}
  )

   * @param hello - An optional hello response for this server
   */
  constructor(
    address: HostAddress | string,
    hello?: Document,
    options: ServerDescriptionOptions = {}
  ) {
    if (address == null || address === '') {
      throw new MongoRuntimeError('ServerDescription must be provided with a non-empty address');
    }

    this.address =
      typeof address === 'string'
        ? HostAddress.fromString(address).toString() // Use HostAddress to normalize
        : address.toString();
    this.type = parseServerType(hello, options);
    this.hosts = hello?.hosts?.map((host: string) => host.toLowerCase()) ?? [];
    this.passives = hello?.passives?.map((host: string) => host.toLowerCase()) ?? [];
    this.arbiters = hello?.arbiters?.map((host: string) => host.toLowerCase()) ?? [];
    this.tags = hello?.tags ?? {};
    this.minWireVersion = hello?.minWireVersion ?? 0;
    this.maxWireVersion = hello?.maxWireVersion ?? 0;
    this.roundTripTime = options?.roundTripTime ?? -1;
    this.minRoundTripTime = options?.minRoundTripTime ?? 0;
    this.lastUpdateTime = processTimeMS();
    this.lastWriteDate = hello?.lastWrite?.lastWriteDate ?? 0;
    // NOTE: This actually builds the stack string instead of holding onto the getter and all its
    // associated references. This is done to prevent a memory leak.
    this.error = options.error ?? null;
    this.error?.stack;
    // TODO(NODE-2674): Preserve int64 sent from MongoDB
    this.topologyVersion = this.error?.topologyVersion ?? hello?.topologyVersion ?? null;
    this.setName = hello?.setName ?? null;
    this.setVersion = hello?.setVersion ?? null;
    this.electionId = hello?.electionId ?? null;
    this.logicalSessionTimeoutMinutes = hello?.logicalSessionTimeoutMinutes ?? null;
    this.maxMessageSizeBytes = hello?.maxMessageSizeBytes ?? null;
    this.maxWriteBatchSize = hello?.maxWriteBatchSize ?? null;
    this.maxBsonObjectSize = hello?.maxBsonObjectSize ?? null;
    this.primary = hello?.primary ?? null;
    this.me = hello?.me?.toLowerCase() ?? null;
    this.$clusterTime = hello?.$clusterTime ?? null;
    this.iscryptd = Boolean(hello?.iscryptd);
  }

  get hostAddress(): HostAddress {
    return HostAddress.fromString(this.address);