wu_xinjun
2022-03-04 e839f2e83fed7eaceb677242f5f9650a79fb8c43
src/engine/AcquisitionMain.py
@@ -11,6 +11,8 @@
from .CaptureThread import CaptureThread
from .ControllThread import ControllThread
from .MicroWaveUDPThread import MicroWaveUDPThread
from . import MessageThreads as ths
from .CameraDevice import cameraController
# add python path of src to sys.path
src_path = os.path.join(__file__, *(['..'] * 2))
@@ -60,198 +62,383 @@
            f.close()
        return
class AcquisitionMain:
class AcquisitionMain (object):
    """
    acquisition main class
    """
    def __init__(self,
                 rabbitmq_host: str,
                 rabbitmq_user: str,
                 rabbitmq_password: str,
                 rabbitmq_queue: str,
                 device_id: str,
                 api_url: str,
                 udp_server_host: str,
                 config: Config) -> None:
        """
        init AcquisitionMain class
        Args:
            rabbitmq_host: rabbitmq server host
            rabbitmq_user: rabbitmq user
            rabbitmq_password: rabbitmq password
            rabbitmq_queue: rabbitmq upload queue
            device_id: device id
            api_url: server api url
            udp_server_host: udp server host for micro wave, localhost for testing or 192.168.2.65 for production
            config: config object
        """
        self.rabbitmq_host: str = rabbitmq_host
        self.udp_server_host: str = udp_server_host
        self.rabbitmq_user: str = rabbitmq_user
        self.rabbitmq_password: str = rabbitmq_password
        self.rabbitmq_queue: str = rabbitmq_queue
        self.device_id: str = device_id
        self.message_send: int = 0
        self.api_url: str = api_url
        self.config = config
        self.image_quality: float = 95
        self.cameras: list = []
        self.msg_queue = queue.Queue()
        # thread members
        self._controll_thread = None
        self._capture_thread = None
        self._udp_thread = None
    # def __init__(self,
    #              rabbitmq_host: str,
    #              rabbitmq_user: str,
    #              rabbitmq_password: str,
    #              rabbitmq_queue: str,
    #              device_id: str,
    #              api_url: str,
    #              udp_server_host: str,
    #              config: Config) -> None:
    #     """
    #     init AcquisitionMain class
    #     Args:
    #         rabbitmq_host: rabbitmq server host
    #         rabbitmq_user: rabbitmq user
    #         rabbitmq_password: rabbitmq password
    #         rabbitmq_queue: rabbitmq upload queue
    #         device_id: device id
    #         api_url: server api url
    #         udp_server_host: udp server host for micro wave, localhost for testing or 192.168.2.65 for production
    #         config: config object
    #     """
    #     self.rabbitmq_host: str = rabbitmq_host
    #     self.udp_server_host: str = udp_server_host
    #     self.rabbitmq_user: str = rabbitmq_user
    #     self.rabbitmq_password: str = rabbitmq_password
    #     self.rabbitmq_queue: str = rabbitmq_queue
    #     self.device_id: str = device_id
    #     self.message_send: int = 0
    #     self.api_url: str = api_url
    #     self.config = config
    #     self.image_quality: float = 95
    #     self.cameras: list = []
    #     self.msg_queue = queue.Queue()
    #     # thread members
    #     self._controll_thread = None
    #     self._capture_thread = None
    #     self._udp_thread = None
    def _start_udp_thread(self):
        """start udp thread"""
        if self._udp_thread is None:
            self._udp_thread = MicroWaveUDPThread((self.udp_server_host, 9911), self.msg_queue)
            self._udp_thread.setDaemon(True)
            self._udp_thread.start()
    def _stop_udp_thread(self):
        """stop udp thread"""
        if not self._udp_thread is None:
            self._udp_thread.stop()
            self._udp_thread = None
    def __init__(self, MQhost, MQuser, MQpassword, deviceID, MICROWAVEhost):
    def _start_capture_thread(self):
        """start camera capture thread"""
        if self._capture_thread is None:
            self._open_cameras()
            if len(self.cameras) == 0:
                print("No camera available")
                return
            self._capture_thread = CaptureThread(
                self.cameras, self.msg_queue, self.config.interval, self.image_quality)
            self._capture_thread.setDaemon(True)
            self._capture_thread.start()
        # device ID
        self.device_id = deviceID
        # rabbit MQ
        self.MQhost = MQhost
        self.MQuser = MQuser
        self.MQpassword = MQpassword
        self.parameters = None
        # camera
        self.IMAGE_WIDTH = 3840
        self.IMAGE_HEIGHT = 2880
        self.CAMERA_COUNT = 4
        # microwave
        self.MICROWAVEhost = MICROWAVEhost
        # threads
        self._device_state_sender_thread = None
        self._alarm_state_sender_thread = None
        self._command_request_receiver_thread = None
        self._command_response_sender_thread = None
        # queue
        self.device_state_queue = queue.Queue()
        self.alarm_state_queue = queue.Queue()
        self.command_request_queue = queue.Queue()
        self.command_response_queue = queue.Queue()
        self.image_data_queue = queue.Queue()
        self.udp_data_queue = queue.Queue()
        self.ply_data_queue = queue.Queue()
    def _stop_capture_thread(self):
        """stop camera capture thread"""
        if not self._capture_thread is None:
            self._capture_thread.stop()
            self._capture_thread = None
        self.queue_dict = {
            "device_state":self.device_state_queue,
            "alarm_state":self.alarm_state_queue,
            "command_request":self.command_request_queue,
            "command_response":self.command_response_queue,
            "image_data":self.image_data_queue,
            "udp_data":self.udp_data_queue,
            "ply_data":self.ply_data_queue
        }
    def _start_controll_thread(self):
        """start controll thread"""
        if self._controll_thread is None:
            self._controll_thread = ControllThread(
                self.rabbitmq_host, self.rabbitmq_user, self.rabbitmq_password, self.device_id + "_callback",
                self.config)
            self._controll_thread.setDaemon(True)
            self._controll_thread.start()
    def _stop_controll_thread(self):
        """stop controll thread"""
        if not self._controll_thread is None:
            self._controll_thread.stop()
            self._controll_thread = None
    def _connect_message_queue(self) -> None:
        """connect message queue of rabbitmq"""
        credentials = pika.PlainCredentials(self.rabbitmq_user, self.rabbitmq_password)
        parameters = pika.ConnectionParameters(
            credentials=credentials, host=self.rabbitmq_host)
    def _connect_to_MQ(self):
        credentials = pika.PlainCredentials(self.MQuser, self.MQpassword)
        self.parameters = pika.ConnectionParameters(
            credentials=credentials, host=self.MQhost)
        # 连接队列服务器
        self._connection = pika.BlockingConnection(parameters)
        self.channel = self._connection.channel()
        self.channel.queue_declare(queue='', exclusive=True)
        try:
            self.connection = pika.BlockingConnection(self.parameters)
            print(f"connected to MQ server: {self.MQhost} with user {self.MQuser}")
            self.connection.close()
        except Exception :
            print("can't connecting to the MQ server")
            exit(1)
    def _close_message_queue(self) -> None:
        """close message queue of rabbitmq"""
        self._connection.close()
    def _start_device_state_up_msg_sender_thread(self):
        """start device state thread"""
        if self._device_state_sender_thread is None:
            self._device_state_sender_thread = \
                ths.device_state_senderThread(self.parameters,\
                    self.device_state_queue,self.device_id)
            self._device_state_sender_thread.setDaemon(True)
            self._device_state_sender_thread.start()
    def _set_logging(self):
        """set logging"""
        logging.basicConfig(level=logging.INFO,
                            format='%(asctime)s %(levelname)s %(message)s',
                            datefmt='%Y-%m-%d %H:%M:%S')
        self.logger = logging.getLogger(__name__)
    def _stop_device_state_up_msg_sender_thread(self):
        """stop device state thread"""
        if self._device_state_sender_thread is not None:
            self._device_state_sender_thread.stop()
            self._device_state_sender_thread = None
    def _send_data(self, req: pb.RequestCommand) -> None:
        """send data to rabbitmq"""
        req.device_id = self.device_id
        body = req.SerializeToString()
        self.channel.basic_publish(
            exchange='',
            routing_key=self.rabbitmq_queue,
            body=body)
        self.message_send += 1
        return
    def _start_alarm_state_up_msg_sender_thread(self):
        """start alarm state thread"""
        if self._alarm_state_sender_thread is None:
            self._alarm_state_sender_thread = \
                ths.alarm_state_senderThread(self.parameters,\
                    self.alarm_state_queue,self.device_id)
            self._alarm_state_sender_thread.setDaemon(True)
            self._alarm_state_sender_thread.start()
    def _call(self, req: pb.RequestCommand, timeout: int = 10) -> pb.ResponseCommand:
        """call server api"""
        req.device_id = self.device_id
        self.response = None
        body = req.SerializeToString()
        response = requests.post(
            self.api_url,
            data=body,
            headers={'Content-Type': 'application/x-protobuf'},
            timeout=timeout)
        resp = pb.ResponseCommand()
        resp.ParseFromString(response.content)
        return resp
    def _stop_alarm_state_up_msg_sender_thread(self):
        """stop alarm state thread"""
        if self._alarm_state_sender_thread is not None:
            self._alarm_state_sender_thread.stop()
            self._alarm_state_sender_thread = None
    def _send_power_on_message(self) -> pb.ResponseCommand:
        """send power on message"""
        print("send power on message")
        req = pb.RequestCommand()
        req.sys_command = pb.SysCommand.SYS_COMMAND
        req.sub_command = pb.SubCommand.POWER_ON_SUB_COMMAND
        return self._call(req)
    def _send_power_off_message(self) -> pb.ResponseCommand:
        """send power off message"""
        print("send power off message")
        req = pb.RequestCommand()
        req.sys_command = pb.SysCommand.SYS_COMMAND
        req.sub_command = pb.SubCommand.POWER_OFF_SUB_COMMAND
        return self._call(req)
    def _start_command_response_sender_thread(self):
        """start command response thread"""
        if self._command_response_sender_thread is None:
            self._command_response_sender_thread = \
                ths.command_response_senderThread(self.parameters, \
                    self.command_response_queue,self.device_id)
            self._command_response_sender_thread.setDaemon(True)
            self._command_response_sender_thread.start()
    def _open_cameras(self):
        """
        Test the ports and returns a tuple with the available ports and the ones that are working.
        """
        self.cameras = []
        self.working_ports = []
        for dev_port in range(CAMERA_COUNT):
            camera = cv2.VideoCapture(dev_port, cv2.CAP_DSHOW)
            camera.set(cv2.CAP_PROP_FRAME_WIDTH, IMAGE_WIDTH)
            camera.set(cv2.CAP_PROP_FRAME_HEIGHT, IMAGE_HEIGHT)
            camera.set(cv2.CAP_PROP_FPS, 1)
            if camera.isOpened():
                is_reading, img = camera.read()
                w = camera.get(3)
                h = camera.get(4)
                if is_reading:
                    print("Port %s is working and reads images (%s x %s)" %
                          (dev_port, h, w))
                    self.working_ports.append(dev_port)
                    self.cameras.append(camera)
    def _stop_command_response_sender_thread(self):
        """stop command response thread"""
        if self._command_response_sender_thread is not None:
            self._command_response_sender_thread.stop()
            self._command_response_sender_thread = None
    def _main_loop(self):
        # main loop of the acquisition main program
        self._connect_message_queue()
        while True:
            try:
                if not self.msg_queue.empty():
                    msg = self.msg_queue.get()
                    self._send_data(msg)
                    print(time.asctime(), "send message")
                time.sleep(0.1)
            except Exception as e:
                break
        self._close_message_queue()
        self._stop_udp_thread()
        self._stop_capture_thread()
        self._stop_controll_thread()
        print("Stopped")
    def _start_command_request_receiver_thread(self):
        """start command request thread"""
        if self._command_request_receiver_thread is None:
            self._command_request_receiver_thread = \
                ths.command_request_receiverThread(self.parameters,\
                self.command_request_queue,self.command_response_queue,self.device_id)
            self._command_request_receiver_thread.setDaemon(True)
            self._command_request_receiver_thread.start()
    def _stop_command_request_receiver_thread(self):
        """stop command request thread"""
        if self._command_request_receiver_thread is not None:
            self._command_request_receiver_thread.stop()
            self._command_request_receiver_thread = None
    def run_rabbitmq(self):
        self._connect_to_MQ()
        self._start_device_state_up_msg_sender_thread()
        self._start_alarm_state_up_msg_sender_thread()
        self._start_command_response_sender_thread()
        self._start_command_request_receiver_thread()
    def run_device(self):
        self.connecting_camera()
        self.connecting_microwave()
        self.connecting_dustCleaner()
    def connecting_camera(self):
        # init the camera controller
        cc = cameraController(self.IMAGE_WIDTH,self.IMAGE_HEIGHT,\
            self.CAMERA_COUNT,self.device_id,self.queue_dict)
        # connecting to camera via opencv
        cc.open_cameras()
        # capture the data, and wrap it to data queue
        cc._start_captureThread()
        pass
    def connecting_microwave(self):
        pass
    def connecting_dustCleaner(self):
        pass
    def run_all(self):
        # connecting to MQ server,launching the message delivery queues
        self.run_rabbitmq()
        # connecting to devices and wrap data to the corressponding queue
        self.run_device()
    def start(self):
        self.run_all()
    # def _start_udp_thread(self):
    #     """start udp thread"""
    #     if self._udp_thread is None:
    #         self._udp_thread = MicroWaveUDPThread((self.udp_server_host, 9911), self.msg_queue)
    #         self._udp_thread.setDaemon(True)
    #         self._udp_thread.start()
    # def _stop_udp_thread(self):
    #     """stop udp thread"""
    #     if not self._udp_thread is None:
    #         self._udp_thread.stop()
    #         self._udp_thread = None
    # def _start_capture_thread(self):
    #     """start camera capture thread"""
    #     if self._capture_thread is None:
    #         self._open_cameras()
    #         if len(self.cameras) == 0:
    #             print("No camera available")
    #             return
    #         self._capture_thread = CaptureThread(
    #             self.cameras, self.msg_queue, self.config.interval, self.image_quality)
    #         self._capture_thread.setDaemon(True)
    #         self._capture_thread.start()
    # def _stop_capture_thread(self):
    #     """stop camera capture thread"""
    #     if not self._capture_thread is None:
    #         self._capture_thread.stop()
    #         self._capture_thread = None
    # def _start_controll_thread(self):
    #     """start controll thread"""
    #     if self._controll_thread is None:
    #         self._controll_thread = ControllThread(
    #             self.rabbitmq_host, self.rabbitmq_user, self.rabbitmq_password, self.device_id + "_callback",
    #             self.config)
    #         self._controll_thread.setDaemon(True)
    #         self._controll_thread.start()
    # def _stop_controll_thread(self):
    #     """stop controll thread"""
    #     if not self._controll_thread is None:
    #         self._controll_thread.stop()
    #         self._controll_thread = None
    # def _connect_message_queue(self) -> None:
    #     """connect message queue of rabbitmq"""
    #     credentials = pika.PlainCredentials(self.rabbitmq_user, self.rabbitmq_password)
    #     parameters = pika.ConnectionParameters(
    #         credentials=credentials, host=self.rabbitmq_host)
    #     # 连接队列服务器
    #     self._connection = pika.BlockingConnection(parameters)
    #     self.channel = self._connection.channel()
    #     self.channel.queue_declare(queue='', exclusive=True)
    # def _close_message_queue(self) -> None:
    #     """close message queue of rabbitmq"""
    #     self._connection.close()
    # def _set_logging(self):
    #     """set logging"""
    #     logging.basicConfig(level=logging.INFO,
    #                         format='%(asctime)s %(levelname)s %(message)s',
    #                         datefmt='%Y-%m-%d %H:%M:%S')
    #     self.logger = logging.getLogger(__name__)
    # def _send_data(self, req: pb.RequestCommand) -> None:
    #     """send data to rabbitmq"""
    #     req.device_id = self.device_id
    #     body = req.SerializeToString()
    #     self.channel.basic_publish(
    #         exchange='',
    #         routing_key=self.rabbitmq_queue,
    #         body=body)
    #     self.message_send += 1
    #     return
    # def _call(self, req: pb.RequestCommand, timeout: int = 10) -> pb.ResponseCommand:
    #     """call server api"""
    #     req.device_id = self.device_id
    #     self.response = None
    #     body = req.SerializeToString()
    #     response = requests.post(
    #         self.api_url,
    #         data=body,
    #         headers={'Content-Type': 'application/x-protobuf'},
    #         timeout=timeout)
    #     resp = pb.ResponseCommand()
    #     resp.ParseFromString(response.content)
    #     return resp
    # def _send_power_on_message(self) -> pb.ResponseCommand:
    #     """send power on message"""
    #     print("send power on message")
    #     req = pb.RequestCommand()
    #     req.sys_command = pb.SysCommand.SYS_COMMAND
    #     req.sub_command = pb.SubCommand.POWER_ON_SUB_COMMAND
    #     return self._call(req)
    # def _send_power_off_message(self) -> pb.ResponseCommand:
    #     """send power off message"""
    #     print("send power off message")
    #     req = pb.RequestCommand()
    #     req.sys_command = pb.SysCommand.SYS_COMMAND
    #     req.sub_command = pb.SubCommand.POWER_OFF_SUB_COMMAND
    #     return self._call(req)
    # def _open_cameras(self):
    #     """
    #     Test the ports and returns a tuple with the available ports and the ones that are working.
    #     """
    #     self.cameras = []
    #     self.working_ports = []
    #     for dev_port in range(CAMERA_COUNT):
    #         camera = cv2.VideoCapture(dev_port, cv2.CAP_DSHOW)
    #         camera.set(cv2.CAP_PROP_FRAME_WIDTH, IMAGE_WIDTH)
    #         camera.set(cv2.CAP_PROP_FRAME_HEIGHT, IMAGE_HEIGHT)
    #         camera.set(cv2.CAP_PROP_FPS, 1)
    #         if camera.isOpened():
    #             is_reading, img = camera.read()
    #             w = camera.get(3)
    #             h = camera.get(4)
    #             if is_reading:
    #                 print("Port %s is working and reads images (%s x %s)" %
    #                       (dev_port, h, w))
    #                 self.working_ports.append(dev_port)
    #                 self.cameras.append(camera)
    # def _main_loop(self):
    #     # main loop of the acquisition main program
    #     self._connect_message_queue()
    #     while True:
    #         try:
    #             if not self.msg_queue.empty():
    #                 msg = self.msg_queue.get()
    #                 self._send_data(msg)
    #                 print(time.asctime(), "send message")
    #             time.sleep(0.1)
    #         except Exception as e:
    #             break
    #     self._close_message_queue()
    #     self._stop_udp_thread()
    #     self._stop_capture_thread()
    #     self._stop_controll_thread()
    #     print("Stopped")
        
    def start(self) -> None:
        """start all threads"""
        self._start_controll_thread()
        self._start_capture_thread()
        self._start_udp_thread()
        self._main_loop()
    # def start(self) -> None:
    #     """start all threads"""
    #     self._start_controll_thread()
    #     self._start_capture_thread()
    #     self._start_udp_thread()
    #     self._main_loop()