@PUT
@Path("/request/{requestId}/instances")
@ApiOperation(
value = "Scale the number of instances up or down for a specific Request",
response = SingularityRequest.class)
@ApiResponses({
@ApiResponse(code = 400, message = "Posted object did not match Request ID"),
@ApiResponse(code = 404, message = "No Request with that ID"),
})
public SingularityRequest updateInstances(
@ApiParam("The Request ID to scale") @PathParam("requestId") String requestId,
@ApiParam("Username of the person requesting the scale") @QueryParam("user")
Optional<String> user,
@ApiParam("Object to hold number of instances to request")
SingularityRequestInstances newInstances) {
checkBadRequest(
requestId != null && newInstances.getId() != null && requestId.equals(newInstances.getId()),
"Update for request instance must pass a matching non-null requestId in path (%s) and object (%s)",
requestId,
newInstances.getId());
checkConflict(
!requestManager.cleanupRequestExists(requestId),
"Request %s is currently cleaning. Try again after a few moments",
requestId);
SingularityRequest oldRequest = fetchRequest(requestId);
Optional<SingularityRequest> maybeOldRequest = Optional.of(oldRequest);
SingularityRequestDeployHolder deployHolder = getDeployHolder(newInstances.getId());
SingularityRequest newRequest =
oldRequest.toBuilder().setInstances(newInstances.getInstances()).build();
validator.checkSingularityRequest(
newRequest,
maybeOldRequest,
deployHolder.getActiveDeploy(),
deployHolder.getPendingDeploy());
final long now = System.currentTimeMillis();
requestManager.update(newRequest, now, user);
checkReschedule(newRequest, maybeOldRequest, now);
return newRequest;
}
