def handleCommandBeginLesson(server, json_obj):
""" 开启课堂（开始上课）
:param server: socket服务端
:param json_obj:|- command
|- account_type
|- timestamp
|- course_id
|- lesson_id
|- uid
|- username
:return:
"""
course_status = RedisForCourseStatus().getCourseStatus(
course_id=json_obj['course_id'])
if course_status == CourseStatus.Waiting:
# 更新课程状态：waiting -> online
lesson = LessonService().beginLesson(lesson_id=json_obj['lesson_id'])
RedisForCourseStatus().onLine(course_id=json_obj['course_id'])
# 给所有课堂中的人发送信息
send_data = {
'command': TransportCmd.BeginLesson,
'course_id': str(lesson.course.id),
'lesson_id': str(lesson.id),
'begin_timestamp': lesson.begin_timestamp
}
connection_list = findConnectionByLessonId(
connection_pool=server.lesson_connection_pool,
lesson_id=str(lesson.id))
send(connection=connection_list, data=send_data)
def raiseHand(server, json_obj):
lesson_id = json_obj["lesson_id"]
student_id = json_obj["uid"]
speech_status = getSpeechStatus(
connection_pool=server.lesson_connection_pool, uid=student_id)
if speech_status == SpeechStatus.InSpeech:
json_obj["raise_hand_err"] = RaiseHandError.InSpeechError
elif speech_status == SpeechStatus.Applying:
json_obj["raise_hand_err"] = RaiseHandError.ApplyingError
else:
json_obj["raise_hand_err"] = RaiseHandError.NoError
# 修改服务器内存中的状态
setSpeechStatus(connection_pool=server.lesson_connection_pool,
uid=student_id,
speech_status=SpeechStatus.Applying)
# 转发给老师
connection = findTeacherConnectionInLesson(
connection_pool=server.lesson_connection_pool, lesson_id=lesson_id)
send(connection_pool=server.paint_connection_pool,
connection=connection,
data=json_obj)
# 回复请求
reply(server.request, json_obj)
def removeMemberFromInSpeech(server, json_obj):
lesson_id = json_obj["lesson_id"]
student_id = json_obj["student_id"]
# 修改服务器内存中的状态
setSpeechStatus(connection_pool=server.lesson_connection_pool,
uid=student_id,
speech_status=SpeechStatus.SpeechFree)
# 给所有课堂中的人发送信息
connection_list = findConnectionByLessonId(
connection_pool=server.lesson_connection_pool, lesson_id=lesson_id)
send(connection_pool=server.paint_connection_pool,
connection=connection_list,
data=json_obj)
def handleCommandStudentCameraFrameData(server, json_obj):
""" 把用户的帧数据转发到分析服务器
:param server: socket服务端
:param json_obj:|- command
|- timestamp
|- course_id
|- lesson_id
|- uid
|- username
|- frame_mat
|- concentration_timestamp
:return:
"""
send(connection=server.cv_server_connection, data=json_obj)
def chatBan(server, json_obj):
lesson_id = json_obj["lesson_id"]
# 刷新
for lesson in server.lessons:
if lesson["lesson_id"] == lesson_id:
if lesson["chat_status"] == ChatStatus.Baned:
lesson["chat_status"] = ChatStatus.Free
else:
lesson["chat_status"] = ChatStatus.Baned
# 转发给所有课堂中的人
connection_list = findConnectionByLessonId(
connection_pool=server.lesson_connection_pool, lesson_id=lesson_id)
send(connection_pool=server.paint_connection_pool,
connection=connection_list,
data=json_obj)
def handleCommandConcentrationFinalData(server, json_obj):
""" 把接收到的分析数据返回给用户
:param server: socket服务端
:param json_obj:|- command
|- is_succeed
|- course_id
|- lesson_id
|- uid
|- concentration_value
|- emotion
|- concentration_timestamp
:return:
"""
# 转发给相关的用户
connection = findConnectionByUid(
connection_pool=server.lesson_connection_pool, uid=json_obj["uid"])
send(connection=connection, data=json_obj)
def paintCommand(server, json_obj):
course_id = json_obj["course_id"]
lesson_id = json_obj["lesson_id"]
uid = json_obj["uid"]
lesson = findLessonByLessonId(server.lessons, lesson_id)
speech_status = getSpeechStatus(
connection_pool=server.lesson_connection_pool, uid=uid)
if speech_status == SpeechStatus.InSpeech:
# 保存
lesson["paint_command_pool"].append(json_obj)
# 转发给相关的用户（除自己外）
connection_list = findOtherConnectionInLesson(
connection_pool=server.paint_connection_pool,
lesson_id=lesson_id,
my_uid=uid)
send(connection_pool=server.paint_connection_pool,
connection=connection_list,
data=json_obj)
print(connection_list)
def resultOfRaiseHand(server, json_obj):
lesson_id = json_obj["lesson_id"]
student_id = json_obj["student_id"]
application_status = json_obj["application_status"]
# 修改服务器内存中的状态
if application_status == ApplicationStatus.Accepted:
setSpeechStatus(connection_pool=server.lesson_connection_pool,
uid=student_id,
speech_status=SpeechStatus.InSpeech)
elif application_status == ApplicationStatus.Refused:
setSpeechStatus(connection_pool=server.lesson_connection_pool,
uid=student_id,
speech_status=SpeechStatus.SpeechFree)
# 转发给所有课堂中的人
connection_list = findConnectionByLessonId(
connection_pool=server.lesson_connection_pool, lesson_id=lesson_id)
send(connection_pool=server.paint_connection_pool,
connection=connection_list,
data=json_obj)
def handleCommandEndLesson(server, json_obj):
""" 结束课堂
:param server: socket服务端
:param json_obj:|- command
|- account_type
|- timestamp
|- course_id
|- lesson_id
|- uid
|- username
:return:
"""
# 更新课程状态：online/waiting/cantJoinIn -> offline
lesson = LessonService().endLesson(lesson_id=json_obj['lesson_id'])
RedisForCourseStatus().offLine(course_id=json_obj['course_id'])
RedisForUserStatus().free(uid=json_obj['uid'])
# 清除redis缓存
RedisForLessonStatus().endLesson(lesson_id=lesson.id)
uid_arr = RedisForInLesson().getLessonUsersUID(lesson_id=lesson.id)
redis_for_in_lesson = RedisForInLesson()
redis_for_user_status = RedisForUserStatus()
for uid in uid_arr:
redis_for_in_lesson.quitLesson(uid=uid)
redis_for_user_status.free(uid=uid)
# 给所有课堂中的人发送信息
send_data = {
'command': TransportCmd.EndLesson,
'course_id': str(lesson.course.id),
'lesson_id': str(lesson.id),
'end_timestamp': lesson.end_timestamp
}
connection_list = findConnectionByLessonId(
connection_pool=server.lesson_connection_pool,
lesson_id=str(lesson.id))
send(connection=connection_list, data=send_data)
# 还需要给分析服务器发送
send(connection=server.cv_server_connection, data=send_data)