public Flowable<TrainingParametersSummary> getTrainingParameterSummary(long id) {
        EndTrainingDataProcessor endTrainingDataProcessor = new EndTrainingDataProcessor();

        return trainingSummaryRepository.getTrainingSummaryAsSingle(id)
                .flatMap(trainingSummaryRow -> externalStorageDatabase.readTrainingLocationData(
                        trainingSummaryRow.getStartTimestamp().toString()
                ))
                .toFlowable()
                .flatMapIterable(trainingPoints -> trainingPoints)
                .map(trainingPoint -> {
                    Location location = new Location(LocationManager.GPS_PROVIDER);
                    location.setLatitude(trainingPoint.getLatitude());
                    location.setLongitude(trainingPoint.getLongitude());
                    return location;
                })
                .doOnNext(endTrainingDataProcessor::process)
                .doOnError(e -> Log.i(TAG, "getTrainingParameterSummary: " + e.getMessage()))
                .map(location -> endTrainingDataProcessor.getTrainingParametersSummary())
                .subscribeOn(Schedulers.io());
    }