server/container/guice/common/src/main/java/org/apache/james/GuiceLifecycleHealthCheck.java

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package org.apache.james;

import javax.inject.Inject;

import org.apache.james.core.healthcheck.ComponentName;
import org.apache.james.core.healthcheck.HealthCheck;
import org.apache.james.core.healthcheck.Result;

import reactor.core.publisher.Mono;

public class GuiceLifecycleHealthCheck implements HealthCheck {
    private final IsStartedProbe probe;

    @Inject
    public GuiceLifecycleHealthCheck(IsStartedProbe probe) {
        this.probe = probe;
    }

    @Override
    public ComponentName componentName() {
        return new ComponentName("Guice application lifecycle");
    }

    @Override
    public Mono<Result> check() {
        if (probe.isStarted()) {
            return Mono.just(Result.healthy(componentName()));
        } else {
            return Mono.just(Result.unhealthy(componentName(), "James server is not started."));
        }
    }
}