Class MetricSnapshotMapper

java.lang.Object

com.nmontytskyi.monitoring.server.mapper.MetricSnapshotMapper

public class MetricSnapshotMapper
extends Object

Stateless mapper between the MetricRecordEntity JPA entity and the MetricSnapshot core domain model.

The MetricRecordEntity.MetricSource is preserved through conversion so that business logic can distinguish between Actuator-pulled data and starter-pushed data when computing aggregates.

Constructor Summary

Constructors

Constructor	Description
MetricSnapshotMapper()

Method Summary

Modifier and Type	Method	Description
static MetricRecordEntity	toEntity(MetricSnapshot snapshot, MetricRecordEntity.MetricSource source, RegisteredServiceEntity service)	Converts a MetricSnapshot core domain object into a MetricRecordEntity ready to be persisted.
static MetricSnapshot	toModel(MetricRecordEntity entity)	Converts a MetricRecordEntity (loaded from the database) into a MetricSnapshot core domain object.

Methods inherited from class java.lang.Object

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

Constructor Details

MetricSnapshotMapper

public MetricSnapshotMapper()

Method Details

toModel

public static MetricSnapshot toModel(MetricRecordEntity entity)

Converts a MetricRecordEntity (loaded from the database) into a MetricSnapshot core domain object.

Parameters:

entity - the JPA entity to convert; must not be null

Returns:

the corresponding domain model

toEntity

public static MetricRecordEntity toEntity(MetricSnapshot snapshot,
 MetricRecordEntity.MetricSource source,
 RegisteredServiceEntity service)

Converts a MetricSnapshot core domain object into a MetricRecordEntity ready to be persisted.

The caller must set the RegisteredServiceEntity association on the returned entity before saving, as the snapshot only carries a string service ID (not the full entity reference).

Parameters:

snapshot - the domain model to convert; must not be null

source - the origin of this snapshot (PULL or PUSH)

service - the owning service entity

Returns:

the JPA entity without a persisted ID