87 lines
3.5 KiB
Java
87 lines
3.5 KiB
Java
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package me.belkacemi.iotalarm.infrastructure.persistence;
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import me.belkacemi.iotalarm.application.query.port.AlarmReadModelPort;
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import me.belkacemi.iotalarm.application.query.view.AlarmStatusView;
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import me.belkacemi.iotalarm.application.query.view.AlertView;
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import me.belkacemi.iotalarm.domain.model.AlarmPolicy;
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import me.belkacemi.iotalarm.domain.model.AlarmState;
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import me.belkacemi.iotalarm.infrastructure.persistence.jpa.AlarmStateJpaRepository;
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import me.belkacemi.iotalarm.infrastructure.persistence.jpa.AlertJpaRepository;
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import me.belkacemi.iotalarm.infrastructure.persistence.mapper.AlertMapper;
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import org.springframework.data.domain.PageRequest;
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import org.springframework.stereotype.Component;
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import java.time.Clock;
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import java.util.List;
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import java.util.Optional;
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import java.util.UUID;
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/**
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* ADAPTER SORTANT du cote LECTURE : implementation du {@link AlarmReadModelPort}.
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*
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* <p>Il ne charge jamais l'agregat. Il assemble une vue a partir de requetes
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* ciblees - c'est la raison d'etre du CQRS : afficher un compteur d'alertes non
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* acquittees via un {@code COUNT(*)} plutot qu'en rehydratant un objet metier
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* complet dont on n'utiliserait aucune methode.</p>
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*/
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@Component
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public class AlarmReadModelAdapter implements AlarmReadModelPort {
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private final AlertJpaRepository alertRepository;
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private final AlarmStateJpaRepository alarmStateRepository;
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private final AlarmPolicy policy;
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private final Clock clock;
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public AlarmReadModelAdapter(AlertJpaRepository alertRepository,
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AlarmStateJpaRepository alarmStateRepository,
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AlarmPolicy policy,
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Clock clock) {
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this.alertRepository = alertRepository;
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this.alarmStateRepository = alarmStateRepository;
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this.policy = policy;
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this.clock = clock;
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}
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@Override
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public Optional<AlarmStatusView> alarmStatus(String zoneId) {
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long unacknowledged = alertRepository.countByZoneIdAndAcknowledgedFalse(zoneId);
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AlertView lastAlert = alertRepository.findFirstByZoneIdOrderByDetectedAtDesc(zoneId)
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.map(AlertMapper::toView)
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.orElse(null);
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return Optional.of(alarmStateRepository.findById(zoneId)
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.map(entity -> new AlarmStatusView(
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entity.getZoneId(),
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entity.getState().name(),
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entity.getStateChangedAt(),
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policy.exitDelay().toSeconds(),
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entity.getLastAlertAt(),
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unacknowledged,
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lastAlert))
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// Base neuve : l'alarme n'a simplement jamais ete armee. La
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// console doit afficher DESARMEE, pas une erreur 404.
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.orElseGet(() -> new AlarmStatusView(
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zoneId,
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AlarmState.DISARMED.name(),
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clock.instant(),
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policy.exitDelay().toSeconds(),
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null,
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unacknowledged,
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lastAlert)));
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}
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@Override
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public List<AlertView> recentAlerts(String zoneId, int limit) {
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return alertRepository
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.findByZoneIdOrderByDetectedAtDesc(zoneId, PageRequest.of(0, limit))
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.stream()
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.map(AlertMapper::toView)
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.toList();
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}
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@Override
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public Optional<AlertView> findAlert(UUID alertId) {
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return alertRepository.findById(alertId).map(AlertMapper::toView);
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}
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}
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