MeterIdPrefixFunction (filter-service-metrics 1.12 1.12 API)

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface MeterIdPrefixFunction
```
Creates a MeterIdPrefix from a RequestLog.

See Also:

MetricCollectingClient, MetricCollectingService

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`default MeterIdPrefix`	`activeRequestPrefix(MeterRegistry registry, RequestLog log)` Creates a `MeterIdPrefix` for the active request counter gauges from the specified `RequestLog`.
`default MeterIdPrefixFunction`	`andThen(BiFunction<MeterRegistry,MeterIdPrefix,MeterIdPrefix> function)` Returns a `MeterIdPrefixFunction` that applies transformation on the `MeterIdPrefix` returned by this function.
`MeterIdPrefix`	`apply(MeterRegistry registry, RequestLog log)` Creates a `MeterIdPrefix` from the specified `RequestLog`.
`static MeterIdPrefixFunction`	`ofDefault(String name)` Returns the default function that creates a `MeterIdPrefix` with the specified name and the `Tag`s derived from the `RequestLog` properties.
`default MeterIdPrefixFunction`	`withTags(Iterable<Tag> tags)` Returns a `MeterIdPrefixFunction` that returns a newly created `MeterIdPrefix` which has the specified labels added.
`default MeterIdPrefixFunction`	`withTags(String... keyValues)` Returns a `MeterIdPrefixFunction` that returns a newly created `MeterIdPrefix` which has the specified label added.

- Method Detail
  - ofDefault
```
static MeterIdPrefixFunction ofDefault(String name)
```
    Returns the default function that creates a MeterIdPrefix with the specified name and the Tags derived from the RequestLog properties.
    - Server-side tags:
      
      hostnamePattern - VirtualHost.hostnamePattern()
      route - Route.meterTag()
      
      method - RPC method name or Enum.name() if RPC method name is not available
      
      httpStatus - HttpStatus.code()
    - Client-side tags:
      
      method - RPC method name or Enum.name() if RPC method name is not available
      
      httpStatus - HttpStatus.code()
  - apply
```
MeterIdPrefix apply(MeterRegistry registry,
                    RequestLog log)
```
    Creates a MeterIdPrefix from the specified RequestLog.
  - activeRequestPrefix
```
default MeterIdPrefix activeRequestPrefix(MeterRegistry registry,
                                          RequestLog log)
```
    Creates a MeterIdPrefix for the active request counter gauges from the specified RequestLog. This method by default delegates to apply(MeterRegistry, RequestLog). You must override this method if your apply(MeterRegistry, RequestLog) implementation builds a MeterIdPrefix using response properties that's not always available when the active request counter is increased, such as HTTP status.
  - withTags
```
default MeterIdPrefixFunction withTags(String... keyValues)
```
    Returns a MeterIdPrefixFunction that returns a newly created MeterIdPrefix which has the specified label added.
  - withTags
```
default MeterIdPrefixFunction withTags(Iterable<Tag> tags)
```
    Returns a MeterIdPrefixFunction that returns a newly created MeterIdPrefix which has the specified labels added.
  - andThen
```
default MeterIdPrefixFunction andThen(BiFunction<MeterRegistry,MeterIdPrefix,MeterIdPrefix> function)
```
    Returns a MeterIdPrefixFunction that applies transformation on the MeterIdPrefix returned by this function.

Interface MeterIdPrefixFunction

Method Summary

Method Detail

ofDefault

apply

activeRequestPrefix

withTags

withTags

andThen