Narayana LRA 参与者支持

quarkus.lra.coordinator-url=https://:8080/lra-coordinator

@Path("/")
@ApplicationScoped
public class SimpleLRAParticipant
{
    @LRA(LRA.Type.REQUIRES_NEW) // a new LRA is created on method entry
    @Path("/work")
    @PUT
    public void doInNewLongRunningAction(@HeaderParam(LRA_HTTP_CONTEXT_HEADER) URI lraId)
    {
        /*
         * Perform business actions in the context of the LRA identified by the
         * value in the injected Jakarta REST header. This LRA was started just before
         * the method was entered (REQUIRES_NEW) and will be closed when the
         * method finishes at which point the completeWork method below will be
         * invoked.
         */
    }

    @org.eclipse.microprofile.lra.annotation.Complete
    @Path("/complete")
    @PUT
    public Response completeWork(@HeaderParam(LRA_HTTP_CONTEXT_HEADER) URI lraId,
                                 String userData)
    {
        /*
         * Free up resources allocated in the context of the LRA identified by the
         * value in the injected Jakarta REST header.
         *
         * Since there is no @Status method in this class, completeWork MUST be
         * idempotent and MUST return the status.
         */
         return Response.ok(ParticipantStatus.Completed.name()).build();
    }

    @org.eclipse.microprofile.lra.annotation.Compensate
    @Path("/compensate")
    @PUT
    public Response compensateWork(@HeaderParam(LRA_HTTP_CONTEXT_HEADER) URI lraId,
                                   String userData)
    {
        /*
         * The LRA identified by the value in the injected Jakarta REST header was
         * cancelled so the business logic should compensate for any actions
         * that have been performed while running in its context.
         *
         * Since there is no @Status method in this class, compensateWork MUST be
         * idempotent and MUST return the status
         */
         return Response.ok(ParticipantStatus.Compensated.name()).build();
    }
}

  @LRA(value = LRA.Type.REQUIRED, // if there is no incoming context a new one is created
       cancelOn = {
           Response.Status.INTERNAL_SERVER_ERROR // cancel on a 500 code
       },
       cancelOnFamily = {
           Response.Status.Family.CLIENT_ERROR // cancel on any 4xx code
       },
       end = false) // the LRA will continue to run when the method finishes
  @Path("/book")
  @POST
  public Response bookTrip(...) { ... }

  @LRA(value = LRA.Type.MANDATORY, // requires an active context before method can be executed
       end = true) // end the LRA started by the bookTrip method
  @Path("/confirm")
  @PUT
  public Booking confirmTrip(Booking booking) throws BookingException { ... }