Examples with VersionedAggregate uk.gov.justice.domain.snapshot.VersionedAggregate used on opensource projects

Example 1 with VersionedAggregate

use of uk.gov.justice.domain.snapshot.VersionedAggregate in project microservice_framework by CJSCommonPlatform.

the class SnapshotAwareAggregateServiceTest method shouldCreateAggregateFromStreamWithTwoEvents.

@Test
public void shouldCreateAggregateFromStreamWithTwoEvents() throws AggregateChangeDetectedException {
    final EventA eventA = new EventA();
    final EventB eventB = mock(EventB.class);
    final JsonObject eventPayloadA = mock(JsonObject.class);
    final JsonObject eventPayloadB = mock(JsonObject.class);
    final Optional<VersionedAggregate<TestAggregate>> versionedAggregate = Optional.empty();
    when(jsonObjectToObjectConverter.convert(eventPayloadA, EventA.class)).thenReturn(eventA);
    when(jsonObjectToObjectConverter.convert(eventPayloadB, EventB.class)).thenReturn(eventB);
    when(eventStream.getId()).thenReturn(STREAM_ID);
    when(eventStream.read()).thenReturn(of(envelopeFrom(metadataWithRandomUUID("eventA"), eventPayloadA), envelopeFrom(metadataWithRandomUUID("eventB"), eventPayloadB)));
    when(snapshotService.getLatestVersionedAggregate(STREAM_ID, TestAggregate.class)).thenReturn(versionedAggregate);
    registerEvent(EventA.class, "eventA");
    registerEvent(EventB.class, "eventB");
    final TestAggregate aggregate = aggregateService.get(eventStream, TestAggregate.class);
    assertThat(aggregate, notNullValue());
    assertThat(aggregate.recordedEvents(), hasSize(2));
    assertThat(aggregate.recordedEvents().get(0), equalTo(eventA));
    assertThat(aggregate.recordedEvents().get(1), equalTo(eventB));
    verify(logger).info("Registering event {}, {} with DefaultAggregateService", "eventA", EventA.class);
    verify(logger).info("Registering event {}, {} with DefaultAggregateService", "eventB", EventB.class);
    verify(logger).trace("Recreating aggregate for instance {} of aggregate type {}", STREAM_ID, TestAggregate.class);
    verify(logger).trace("SnapshotAwareAggregateService Recreating aggregate for instance {} of aggregate type {}", STREAM_ID, TestAggregate.class);
}

Example 2 with VersionedAggregate

use of uk.gov.justice.domain.snapshot.VersionedAggregate in project microservice_framework by CJSCommonPlatform.

the class SnapshotAwareAggregateServiceTest method shouldReplayDeltaOfEventsOnAggregate.

@Test
public void shouldReplayDeltaOfEventsOnAggregate() throws AggregateChangeDetectedException {
    defaultAggregateService.logger = logger;
    defaultAggregateService.jsonObjectToObjectConverter = jsonObjectToObjectConverter;
    final UUID streamId = UUID.randomUUID();
    final long currentStreamVersion = 5L;
    final TestAggregate aggregate = new TestAggregate();
    final long snapshotVersion = 2L;
    final JsonEnvelope jsonEventA = envelope().with(metadataWithRandomUUID("eventA")).withPayloadOf("value1", "name1").build();
    final JsonEnvelope jsonEventB = envelope().with(metadataWithRandomUUID("eventB")).withPayloadOf("value2", "name1").build();
    final JsonEnvelope jsonEventC = envelope().with(metadataWithRandomUUID("eventC")).withPayloadOf("value3", "name1").build();
    registerEvent(EventA.class, "eventA");
    registerEvent(EventB.class, "eventB");
    registerEvent(EventC.class, "eventC");
    final EventA eventA = new EventA("A1");
    final EventB eventB = new EventB("B1");
    final EventC eventC = new EventC("C1");
    when(eventStream.getId()).thenReturn(streamId);
    when(eventStream.getCurrentVersion()).thenReturn(currentStreamVersion);
    when(snapshotService.getLatestVersionedAggregate(streamId, TestAggregate.class)).thenReturn(Optional.of(new VersionedAggregate<>(snapshotVersion, aggregate)));
    when(eventStream.readFrom(snapshotVersion + 1)).thenReturn(of(jsonEventA, jsonEventB, jsonEventC));
    when(jsonObjectToObjectConverter.convert(jsonEventA.payloadAsJsonObject(), EventA.class)).thenReturn(eventA);
    when(jsonObjectToObjectConverter.convert(jsonEventB.payloadAsJsonObject(), EventB.class)).thenReturn(eventB);
    when(jsonObjectToObjectConverter.convert(jsonEventC.payloadAsJsonObject(), EventC.class)).thenReturn(eventC);
    aggregateService.get(eventStream, TestAggregate.class);
    assertThat(aggregate.recordedEvents(), hasItems(eventA, eventB, eventC));
}

Example 3 with VersionedAggregate

use of uk.gov.justice.domain.snapshot.VersionedAggregate in project microservice_framework by CJSCommonPlatform.

the class SnapshotAwareAggregateServiceTest method shouldCreateAggregateFromStreamOfThreeWithAFilteredOutSystemEvent.

@Test
public void shouldCreateAggregateFromStreamOfThreeWithAFilteredOutSystemEvent() throws AggregateChangeDetectedException {
    final Optional<VersionedAggregate<TestAggregate>> versionedAggregate = Optional.empty();
    JsonObject eventPayloadA = mock(JsonObject.class);
    JsonObject eventPayloadB = mock(JsonObject.class);
    EventA eventA = mock(EventA.class);
    EventB eventB = mock(EventB.class);
    when(jsonObjectToObjectConverter.convert(eventPayloadA, EventA.class)).thenReturn(eventA);
    when(jsonObjectToObjectConverter.convert(eventPayloadB, EventB.class)).thenReturn(eventB);
    when(eventStream.getId()).thenReturn(STREAM_ID);
    when(eventStream.read()).thenReturn(Stream.of(envelopeFrom(metadataWithRandomUUID("eventA"), eventPayloadA), envelopeFrom(metadataWithRandomUUID("eventB"), eventPayloadB), envelopeFrom(metadataWithRandomUUID("system.events.eventC"), eventPayloadB)));
    when(snapshotService.getLatestVersionedAggregate(STREAM_ID, TestAggregate.class)).thenReturn(versionedAggregate);
    when(eventStream.getId()).thenReturn(STREAM_ID);
    registerEvent(EventA.class, "eventA");
    registerEvent(EventB.class, "eventB");
    TestAggregate aggregate = aggregateService.get(eventStream, TestAggregate.class);
    assertThat(aggregate, notNullValue());
    assertThat(aggregate.recordedEvents(), hasSize(2));
    assertThat(aggregate.recordedEvents().get(0), equalTo(eventA));
    assertThat(aggregate.recordedEvents().get(1), equalTo(eventB));
    verify(logger).info("Registering event {}, {} with DefaultAggregateService", "eventA", EventA.class);
    verify(logger).info("Registering event {}, {} with DefaultAggregateService", "eventB", EventB.class);
    verify(logger).trace("Recreating aggregate for instance {} of aggregate type {}", STREAM_ID, TestAggregate.class);
}

Example 4 with VersionedAggregate

use of uk.gov.justice.domain.snapshot.VersionedAggregate in project microservice_framework by CJSCommonPlatform.

the class SnapshotAwareAggregateServiceTest method shouldThrowExceptionForUnregisteredEvent.

@Test(expected = IllegalStateException.class)
public void shouldThrowExceptionForUnregisteredEvent() throws AggregateChangeDetectedException {
    defaultAggregateService.logger = logger;
    defaultAggregateService.jsonObjectToObjectConverter = jsonObjectToObjectConverter;
    final JsonObject eventPayloadA = mock(JsonObject.class);
    final EventA eventA = mock(EventA.class);
    when(eventStream.getId()).thenReturn(STREAM_ID);
    when(snapshotService.getLatestVersionedAggregate(STREAM_ID, TestAggregate.class)).thenReturn(Optional.of(new VersionedAggregate<>(INITIAL_AGGREGATE_VERSION, new TestAggregate())));
    when(jsonObjectToObjectConverter.convert(eventPayloadA, EventA.class)).thenReturn(eventA);
    when(eventStream.readFrom(NEXT_AGGREGATE_VERSION)).thenReturn(of(envelopeFrom(metadataWithRandomUUID("eventA"), eventPayloadA)));
    aggregateService.get(eventStream, TestAggregate.class);
}

Example 5 with VersionedAggregate

use of uk.gov.justice.domain.snapshot.VersionedAggregate in project microservice_framework by CJSCommonPlatform.

the class SnapshotAwareAggregateServiceTest method shouldCreateAggregateFromEmptyStream.

@Test
public void shouldCreateAggregateFromEmptyStream() throws AggregateChangeDetectedException {
    when(eventStream.getId()).thenReturn(STREAM_ID);
    when(snapshotService.getLatestVersionedAggregate(STREAM_ID, TestAggregate.class)).thenReturn(Optional.of(new VersionedAggregate<>(INITIAL_AGGREGATE_VERSION, new TestAggregate())));
    when(eventStream.readFrom(NEXT_AGGREGATE_VERSION)).thenReturn(Stream.empty());
    final TestAggregate aggregate = aggregateService.get(eventStream, TestAggregate.class);
    assertThat(aggregate, notNullValue());
    assertThat(aggregate.recordedEvents(), empty());
    verify(logger).trace("SnapshotAwareAggregateService Recreating aggregate for instance {} of aggregate type {}", STREAM_ID, TestAggregate.class);
}