}

        switch (preference.toLowerCase()) {
        case "disni":
            RdmaProvider disniProvider = new DisniRdmaProvider();
            if (disniProvider.isAvailable()) {
                return disniProvider;
            }
            log.warn("DiSNI RDMA provider requested but not available");
            break;

        case "tcp":
            return new TcpRdmaProvider();

        default:

func (mt MetricType) String() string {
	switch mt {
	case CounterMT:
		return "counter"
	case GaugeMT:
		return "gauge"
	case HistogramMT:
		return "histogram"
	default:
		return "*unknown*"
	}
}

func (mt MetricType) toProm() prometheus.ValueType {
	switch mt {
	case CounterMT:
		return prometheus.CounterValue
	case GaugeMT:
		return prometheus.GaugeValue
	case HistogramMT:
		return prometheus.CounterValue

			var s string
			if err = d.DecodeElement(&s, &se); err != nil {
				return err
			}
			switch se.Name.Local {
			case "Key":
				if keyAlreadyParsed {
					return errDuplicatedXMLTag
				}
				tag.Key = s
				keyAlreadyParsed = true
			case "Value":
				if valueAlreadyParsed {
					return errDuplicatedXMLTag
				}
				tag.Value = s
				valueAlreadyParsed = true
			default:

  }

  @Override
  public void run() {
    InterruptibleTask<?> localTask = task;
    if (localTask != null) {
      localTask.run();
    }
    /*
     * In the Async case, we may have called setFuture(pendingFuture), in which case afterDone()
     * won't have been called yet.
     */
    this.task = null;
  }

  @Override
  protected void afterDone() {
    super.afterDone();

    if (wasInterrupted()) {

          <description>A preferred alternative to this expression, in the case where it's deprecated.</description>
          <type>String</type>
        </field>
        <field>
          <version>1.0.0</version>
          <name>ban</name>
          <description>A preferred alternative to this expression, in the case where it's banned from use.</description>
          <type>String</type>
        </field>

response model, FastAPI will use the `jsonable_encoder` explained in [JSON Compatible Encoder](../tutorial/encoder.md) and put it in a `JSONResponse`.

If you declare a `response_class` with a JSON media type (`application/json`), like is the case with the `JSONResponse`, the data you return will be automatically converted (and filtered) with any Pydantic `response_model` that you declared in the *path operation decorator*. But the data won't be serialized to JSON bytes with Pydantic, instead...

	return ssc != "" || rrsc != ""
}

// DefaultParityBlocks returns default parity blocks for 'drive' count
func DefaultParityBlocks(drive int) int {
	switch drive {
	case 1:
		return 0
	case 3, 2:
		return 1
	case 4, 5:
		return 2
	case 6, 7:
		return 3
	default:
		return 4
	}
}

// LookupConfig - lookup storage class config and override with valid environment settings if any.

 * expressed as {@code y = m * x + c} for finite {@code m} and {@code c}, unless it is a vertical
 * transformation in which case {@code x} has a constant value for all {@code y}. In the
 * non-vertical case, {@code m} is the slope of the transformation (and a horizontal transformation
 * has zero slope).
 *
 * @author Pete Gillin
 * @since 20.0
 */
@J2ktIncompatible

## What is "Dependency Injection" { #what-is-dependency-injection }

**"Dependency Injection"** means, in programming, that there is a way for your code (in this case, your *path operation functions*) to declare things that it requires to work and use: "dependencies".

And then, that system (in this case **FastAPI**) will take care of doing whatever is needed to provide your code with those needed dependencies ("inject" the dependencies).

       *   called only once, just as it has its Executor.execute override called only once.)
       *
       * - if we return immediately from `execute` (in which case we never get here)
       *
       * - in the "reentrant submit" case of `execute` (in which case we must have started running a
       *   user task -- which means that we already got past this code (or else we exited early
       *   above))
       */