How to use

HystrixCollapser$1

in

com.netflix.hystrix

@Override
public Observable<BatchReturnType> createObservableCommand(Collection<CollapsedRequest<ResponseType, RequestArgumentType>> requests) {
  final HystrixCommand<BatchReturnType> command = self.createCommand(requests);
  command.markAsCollapsedCommand(this.getCollapserKey(), requests.size());
  self.metrics.markBatch(requests.size());
  return command.toObservable();
}

@Override
public Observable<BatchReturnType> createObservableCommand(Collection<CollapsedRequest<ResponseType, RequestArgumentType>> requests) {
  final HystrixCommand<BatchReturnType> command = self.createCommand(requests);
  command.markAsCollapsedCommand(this.getCollapserKey(), requests.size());
  self.metrics.markBatch(requests.size());
  return command.toObservable();
}