github.com/midokura/kubeedge@v1.2.0-mido.0/tests/stubs/devices/services/temperature.go (about)

     1  /*
     2  Copyright 2019 The KubeEdge Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8     http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package services
    18  
    19  import (
    20  	"fmt"
    21  
    22  	"github.com/paypal/gatt"
    23  )
    24  
    25  const (
    26  	// serviceUUID is characteristic UUID for creating a new temperature service.
    27  	serviceUUID = "09fc95c0-c111-11e3-9904-0002a5d5c51b"
    28  	// readCharacteristicUUID is characteristic UUID for reading temperature.
    29  	readCharacteristicUUID = "11fac9e0-c111-11e3-9246-0002a5d5c51b"
    30  	// writeCharacteristicUUID is characteristic UUID for writing temperature.
    31  	writeCharacteristicUUID = "16fe0d80-c111-11e3-b8c8-0002a5d5c51b"
    32  	// readWrittenDataCharacteristicUUID is characteristic UUID for reading data written to connected device.
    33  	readWrittenDataCharacteristicUUID = "1c927b50-c116-11e3-8a33-0800200c9a66"
    34  	// dataConverterUUID is characteristic UUID for data conversion.
    35  	dataConverterUUID = "2d816a41-d335-44f5-7b55-9000200c8a77"
    36  	// twinStateUUID is characteristic UUID for changing twin state of device.
    37  	twinStateUUID = "3d816a41-e336-55e5-7c66-8000100d8a44"
    38  )
    39  
    40  var dataWrite string
    41  var write bool
    42  var state string
    43  
    44  func NewTemperatureService() *gatt.Service {
    45  	temp := 36
    46  	s := gatt.NewService(gatt.MustParseUUID(serviceUUID))
    47  
    48  	s.AddCharacteristic(gatt.MustParseUUID(readCharacteristicUUID)).HandleReadFunc(
    49  		func(rsp gatt.ResponseWriter, req *gatt.ReadRequest) {
    50  			fmt.Fprintf(rsp, "%d", temp)
    51  		})
    52  
    53  	s.AddCharacteristic(gatt.MustParseUUID(writeCharacteristicUUID)).HandleWriteFunc(
    54  		func(r gatt.Request, data []byte) (status byte) {
    55  			fmt.Println("Wrote:", string(data))
    56  			write = true
    57  			dataWrite = string(data)
    58  			return gatt.StatusSuccess
    59  		})
    60  
    61  	s.AddCharacteristic(gatt.MustParseUUID(readWrittenDataCharacteristicUUID)).HandleReadFunc(
    62  		func(rsp gatt.ResponseWriter, req *gatt.ReadRequest) {
    63  			if write {
    64  				fmt.Fprintf(rsp, "%s", dataWrite)
    65  			}
    66  		})
    67  
    68  	s.AddCharacteristic(gatt.MustParseUUID(dataConverterUUID)).HandleReadFunc(
    69  		func(rsp gatt.ResponseWriter, req *gatt.ReadRequest) {
    70  			data := []uint8{32, 10, 248, 12}
    71  			fmt.Fprintf(rsp, "%s", data)
    72  		})
    73  
    74  	s.AddCharacteristic(gatt.MustParseUUID(twinStateUUID)).HandleWriteFunc(
    75  		func(r gatt.Request, data []byte) (status byte) {
    76  			state = "Red"
    77  			return gatt.StatusSuccess
    78  		})
    79  
    80  	return s
    81  }