org.opennms.core.health.api

Interface HealthCheckService

All Known Implementing Classes:

DefaultHealthCheckService

public interface HealthCheckService

The HealthCheckService performs various HealthChecks and returns the result of each check wrapped by the Health object.

Author:

mvrueden

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Health>	performAsyncHealthCheck(Context context, java.util.function.Consumer<HealthCheck> onStartConsumer, java.util.function.Consumer<Response> onFinishConsumer) Performs various HealthChecks asynchronously and returns a CompletableFuture which contains the Health representing each HealthChecks Response.

Method Detail

performAsyncHealthCheck

CompletableFuture<Health> performAsyncHealthCheck(Context context,
                                                  java.util.function.Consumer<HealthCheck> onStartConsumer,
                                                  java.util.function.Consumer<Response> onFinishConsumer)

Performs various HealthChecks asynchronously and returns a CompletableFuture which contains the Health representing each HealthChecks Response. It is up to the implementator to respect timeouts and handle exceptions accordingly, when these situations arise when calling HealthCheck.perform(Context). Callback methods can be provided to print information before and after a HealthCheck is invoked. When providing a onFinishConsumer please note, that this is invoked even if the HealthCheck.perform(Context) execution failed or timed out and therefore may not represent the value when calling HealthCheck.perform(Context) directly.

Parameters:

context - The context object

onStartConsumer - Callback method which is invoked before the HealthCheck.perform(Context) method is invoked. May be null.

onFinishConsumer - Callback method which is invoked after the HealthCheck.perform(Context) method is invoked. May be null.

Returns:

The CompletableFuture to retrieve the Health from.