AuthenticatorActivity.kt

    /**
     * Load the data from the biometric store and populate the right fields
     */
    private fun loadFromBiometricStore() {
        if (whorlwind?.canStoreSecurely() == true) {
            val disposable = whorlwind!!.read("password")
                    .subscribeOn(Schedulers.io())
                    .observeOn(AndroidSchedulers.mainThread())
                    .subscribe { result ->
                        when (result.readState) {
                            ReadResult.ReadState.NEEDS_AUTH -> {
                                toast("WHORLWIND - NEEDS_AUTH")
                            }

                            ReadResult.ReadState.UNRECOVERABLE_ERROR,
                            ReadResult.ReadState.AUTHORIZATION_ERROR,
                            ReadResult.ReadState.RECOVERABLE_ERROR -> {
                                toast("WHORLWIND - ERROR")
                            }

                            ReadResult.ReadState.READY -> {
                                Log.d(TAG, "WHORLWIND - READY - password = ${result.value?.utf8() ?: "null"}")
                                val password = result.value?.utf8() ?: ""
                                with (loginFormPasswordField.text) {
                                    clear()
                                    append(password)
                                }
                            }

                            else -> {
                                toast("WHORLWIND - EEEK!")
                            }
                        }
                    }
            mDisposable.add(disposable)
        } else {
            toast("Biometric storage is not available")
        }
    }