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| |
| package org.apache.james.mailrepository.api; |
| |
| import org.apache.james.core.healthcheck.ComponentName; |
| import org.apache.james.core.healthcheck.HealthCheck; |
| import org.apache.james.core.healthcheck.Result; |
| import org.apache.james.util.FunctionalUtils; |
| import org.apache.james.util.ReactorUtils; |
| |
| import reactor.core.publisher.Flux; |
| import reactor.core.publisher.Mono; |
| |
| public class EmptyErrorMailRepositoryHealthCheck implements HealthCheck { |
| public static final ComponentName COMPONENT_NAME = new ComponentName("EmptyErrorMailRepository"); |
| private final MailRepositoryStore repositoryStore; |
| private final MailRepositoryPath errorRepositoryPath; |
| |
| public EmptyErrorMailRepositoryHealthCheck(MailRepositoryPath errorRepositoryPath, MailRepositoryStore repositoryStore) { |
| this.repositoryStore = repositoryStore; |
| this.errorRepositoryPath = errorRepositoryPath; |
| } |
| |
| @Override |
| public ComponentName componentName() { |
| return COMPONENT_NAME; |
| } |
| |
| @Override |
| public Mono<Result> check() { |
| return Mono.fromCallable(() -> repositoryStore.getByPath(errorRepositoryPath)) |
| .flatMapMany(Flux::fromStream) |
| .flatMap(MailRepository::sizeReactive) |
| .any(repositorySize -> repositorySize > 0) |
| .filter(FunctionalUtils.identityPredicate()) |
| .map(hasSize -> Result.degraded(COMPONENT_NAME, "MailRepository is not empty")) |
| .switchIfEmpty(Mono.just(Result.healthy(COMPONENT_NAME))) |
| .subscribeOn(ReactorUtils.BLOCKING_CALL_WRAPPER); |
| } |
| } |