Package io.servicetalk.grpc.utils

Class GrpcLifecycleObservers

java.lang.Object

io.servicetalk.grpc.utils.GrpcLifecycleObservers

public final class GrpcLifecycleObservers
extends Object

A factory to create different GrpcLifecycleObservers.

Method Summary

Modifier and Type	Method	Description
static GrpcLifecycleObserver	combine(GrpcLifecycleObserver first, GrpcLifecycleObserver second)	Combines multiple GrpcLifecycleObservers into a single GrpcLifecycleObserver.
static GrpcLifecycleObserver	combine(GrpcLifecycleObserver first, GrpcLifecycleObserver second, GrpcLifecycleObserver... others)	Combines multiple GrpcLifecycleObservers into a single GrpcLifecycleObserver.
static GrpcLifecycleObserver	logging(String loggerName, LogLevel logLevel)	Logging implementation of GrpcLifecycleObserver.
static List<GrpcLifecycleObserver>	unpack(GrpcLifecycleObserver observer)	Unpacks a GrpcLifecycleObserver into a list of its leaf observers.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

logging

public static GrpcLifecycleObserver logging(String loggerName,
 LogLevel logLevel)

Logging implementation of GrpcLifecycleObserver.

Parameters:

loggerName - The name of the logger to use

logLevel - The level to log at

Returns:

GrpcLifecycleObserver that logs events at the specified LogLevel

combine

public static GrpcLifecycleObserver combine(GrpcLifecycleObserver first,
 GrpcLifecycleObserver second)

Combines multiple GrpcLifecycleObservers into a single GrpcLifecycleObserver.

Parameters:

first - GrpcLifecycleObserver to combine

second - GrpcLifecycleObserver to combine

Returns:

a GrpcLifecycleObserver that delegates all invocations to the provided GrpcLifecycleObservers

See Also:

• unpack(GrpcLifecycleObserver)

combine

public static GrpcLifecycleObserver combine(GrpcLifecycleObserver first,
 GrpcLifecycleObserver second,
 GrpcLifecycleObserver... others)

Combines multiple GrpcLifecycleObservers into a single GrpcLifecycleObserver.

Parameters:

first - GrpcLifecycleObserver to combine

second - GrpcLifecycleObserver to combine

others - GrpcLifecycleObservers to combine

Returns:

a GrpcLifecycleObserver that delegates all invocations to the provided GrpcLifecycleObservers

See Also:

• unpack(GrpcLifecycleObserver)

unpack

public static List<GrpcLifecycleObserver> unpack(GrpcLifecycleObserver observer)

Unpacks a GrpcLifecycleObserver into a list of its leaf observers.

If the provided observer was created using one of the combine methods, this method recursively extracts all individual observers that were combined. Otherwise, returns a singleton list containing the provided observer.

Parameters:

observer - GrpcLifecycleObserver to unpack

Returns:

a List of leaf GrpcLifecycleObservers

See Also:

• combine(GrpcLifecycleObserver, GrpcLifecycleObserver)
• combine(GrpcLifecycleObserver, GrpcLifecycleObserver, GrpcLifecycleObserver...)