four warmup methods

    public static void warmpupSearch() {
        Observable observable = Observable.create(new Observable.OnSubscribe<LinkedList<TerminEntity>>() {
            @Override
            public void call(Subscriber<? super LinkedList<TerminEntity>> subscriber) {
                try {
                    subscriber.onNext(CouchDbFacade.getInstance().getTerminByDateAndClientName(
                            null,
                            null,
                            null,
                            null));
                    subscriber.onCompleted();
                } catch (Exception e) {
                    LogUtil.reportToDevelopers(e);
                    subscriber.onError(e);
                }
            }
        });
        observable
                .subscribeOn(Schedulers.newThread())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Subscriber<LinkedList<TerminEntity>>() {
                    @Override
                    public void onCompleted() {
                        // do nothing
                    }

                    @Override
                    public void onError(Throwable e) {
                        Log.d(TAG, "Rx error: " + e.getMessage());
                        // do nothing
                    }

                    @Override
                    public void onNext(LinkedList<TerminEntity> result) {
                        // do nothing
                    }
                });
    }

    public static void warmpupServicesActiveAll() {
        Observable observable = Observable.create(new Observable.OnSubscribe<LinkedList<ServiceEntity>>() {
            @Override
            public void call(Subscriber<? super LinkedList<ServiceEntity>> subscriber) {
                try {
                    subscriber.onNext(CouchDbFacade.getInstance().getServicesActiveAll());
                    subscriber.onCompleted();
                } catch (Exception e) {
                    LogUtil.reportToDevelopers(e);
                    subscriber.onError(e);
                }
            }
        });
        observable
                .subscribeOn(Schedulers.newThread())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Subscriber<LinkedList<ServiceEntity>>() {
                    @Override
                    public void onCompleted() {
                        // do nothing
                    }

                    @Override
                    public void onError(Throwable e) {
                        Log.d(TAG, "Rx error: " + e.getMessage());
                        // do nothing
                    }

                    @Override
                    public void onNext(LinkedList<ServiceEntity> result) {
                        // do nothing
                    }
                });
    }

    public static void warmpupServiceById() {
        Observable observable = Observable.create(new Observable.OnSubscribe<ServiceEntity>() {
            @Override
            public void call(Subscriber<? super ServiceEntity> subscriber) {
                try {
                    subscriber.onNext(CouchDbFacade.getInstance().getServiceById(null));
                    subscriber.onCompleted();
                } catch (Exception e) {
                    LogUtil.reportToDevelopers(e);
                    subscriber.onError(e);
                }
            }
        });
        observable
                .subscribeOn(Schedulers.newThread())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Subscriber<ServiceEntity>() {
                    @Override
                    public void onCompleted() {
                        // do nothing
                    }

                    @Override
                    public void onError(Throwable e) {
                        Log.d(TAG, "Rx error: " + e.getMessage());
                        // do nothing
                    }

                    @Override
                    public void onNext(ServiceEntity result) {
                        // do nothing
                    }
                });
    }

    public static void warmpupStaffAll() {
        Observable observable = Observable.create(new Observable.OnSubscribe<LinkedList<StaffEntity>>() {
            @Override
            public void call(Subscriber<? super LinkedList<StaffEntity>> subscriber) {
                try {
                    subscriber.onNext(CouchDbFacade.getInstance().getStaffAll());
                    subscriber.onCompleted();
                } catch (Exception e) {
                    LogUtil.reportToDevelopers(e);
                    subscriber.onError(e);
                }
            }
        });
        observable
                .subscribeOn(Schedulers.newThread())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Subscriber<LinkedList<StaffEntity>>() {
                    @Override
                    public void onCompleted() {
                        // do nothing
                    }

                    @Override
                    public void onError(Throwable e) {
                        Log.d(TAG, "Rx error: " + e.getMessage());
                        // do nothing
                    }

                    @Override
                    public void onNext(LinkedList<StaffEntity> result) {
                        // do nothing
                    }
                });
    }