Examples with LoggedEvent io.zeebe.logstreams.log.LoggedEvent used on opensource projects

Example 1 with LoggedEvent

use of io.zeebe.logstreams.log.LoggedEvent in project zeebe by zeebe-io.

the class TypedStreamProcessorTest method shouldWriteSourceEventAndProducerOnBatch.

@Test
public void shouldWriteSourceEventAndProducerOnBatch() {
    // given
    final TypedStreamEnvironment env = new TypedStreamEnvironment(streams.getLogStream(STREAM_NAME), output);
    final TypedStreamProcessor streamProcessor = env.newStreamProcessor().onEvent(EventType.TOPIC_EVENT, TopicState.CREATE, new BatchProcessor()).build();
    final StreamProcessorControl streamProcessorControl = streams.initStreamProcessor(STREAM_NAME, STREAM_PROCESSOR_ID, () -> streamProcessor);
    streamProcessorControl.start();
    final long firstEventPosition = streams.newEvent(STREAM_NAME).event(createTopic("foo", 1)).write();
    // when
    streamProcessorControl.unblock();
    final LoggedEvent writtenEvent = doRepeatedly(() -> streams.events(STREAM_NAME).filter(Events::isTopicEvent).filter(e -> Events.asTopicEvent(e).getState() == TopicState.CREATE_REJECTED).findFirst()).until(o -> o.isPresent()).get();
    // then
    assertThat(writtenEvent.getProducerId()).isEqualTo(STREAM_PROCESSOR_ID);
    assertThat(writtenEvent.getSourceEventLogStreamPartitionId()).isEqualTo(stream.getPartitionId());
    assertThat(writtenEvent.getSourceEventPosition()).isEqualTo(firstEventPosition);
}

Example 2 with LoggedEvent

use of io.zeebe.logstreams.log.LoggedEvent in project zeebe by zeebe-io.

the class WorkflowDeploymentCache method lookupWorkflow.

private DeployedWorkflow lookupWorkflow(long key) {
    DeployedWorkflow deployedWorkflow = null;
    final DirectBuffer positionWorkflowBuffer = keyToPositionWorkflowMap.get(key);
    if (positionWorkflowBuffer != null) {
        final long eventPosition = positionWorkflowBuffer.getLong(POSITION_OFFSET, BYTE_ORDER);
        final int workflowIndex = positionWorkflowBuffer.getInt(WORKFLOW_INDEX_OFFSET, BYTE_ORDER);
        final boolean found = logStreamReader.seek(eventPosition);
        if (found && logStreamReader.hasNext()) {
            final LoggedEvent event = logStreamReader.next();
            workflowEvent.reset();
            event.readValue(workflowEvent);
            final WorkflowDefinition workflowDefinition = bpmn.readFromXmlBuffer(workflowEvent.getBpmnXml());
            final Workflow workflow = getWorkflowAt(workflowDefinition, workflowIndex);
            deployedWorkflow = new DeployedWorkflow(workflow, workflowEvent.getVersion());
        }
    }
    return deployedWorkflow;
}

Example 3 with LoggedEvent

use of io.zeebe.logstreams.log.LoggedEvent in project zeebe by zeebe-io.

the class TypedStreamReaderImpl method readValue.

@Override
@SuppressWarnings({ "unchecked" })
public <T extends UnpackedObject> TypedEvent<T> readValue(long position, Class<T> eventClass) {
    final boolean success = reader.seek(position);
    if (!success) {
        throw new RuntimeException("Could not find an event at position " + position);
    }
    final LoggedEvent rawEvent = reader.next();
    metadata.reset();
    rawEvent.readMetadata(metadata);
    final UnpackedObject value = eventCache.get(eventClass);
    value.reset();
    rawEvent.readValue(value);
    event.wrap(rawEvent, metadata, value);
    return event;
}

Example 4 with LoggedEvent

use of io.zeebe.logstreams.log.LoggedEvent in project zeebe by zeebe-io.

the class PayloadCache method lookupPayload.

private DirectBuffer lookupPayload(long position) {
    DirectBuffer payload = null;
    final boolean found = logStreamReader.seek(position);
    if (found && logStreamReader.hasNext()) {
        final LoggedEvent event = logStreamReader.next();
        workflowInstanceEvent.reset();
        event.readValue(workflowInstanceEvent);
        payload = workflowInstanceEvent.getPayload();
    }
    return payload;
}