class Consumer(object):
def __init__(self):
self.client = client
self.executor = Executor()
self.context = Context()
def read(self):
while True:
# XREAD() 阻塞式读取消息
items = self.client.xread(
{'clover': '0-0'}, # FIFO消费方式消费队列
block=0, # 阻塞式消费
count=1 # xread每次从消息队列最多取一个消息
)
stream_id = items[0][1][0][0]
fields = items[0][1][0][1]
data = json.loads(fields['businessData'])
try:
print(f'{stream_id}消息 开始消费...')
self.context.build_context(data)
self.executor.execute(self.context)
except Exception as e:
print(f'{stream_id}消息消费失败; 暂无重试机制,请修改业务代码bug后重新发消息消费')
print(e)
self.client.xdel('clover', stream_id)
else:
print(f'{stream_id}消息消费成功')
self.client.xdel('clover', stream_id)
# 消费频率，监听队列间隔，轮询间隔
time.sleep(1)
class Run(object):
def __init__(self):
super(Run, self).__init__()
self.executor = Executor()
self.context = Context()
def executor_run(self, data):
self.context.build_context(data)
self.executor.execute(self.context)
def update(self, data):
"""
# 使用id作为条件，更新数据库重的数据记录。
# 通过id查不到数据时增作为一条新的记录存入。
:param data:
:return:
"""
old_model = InterfaceModel.query.get(data['id'])
if old_model is None:
model = InterfaceModel(**data)
db.session.add(model)
db.session.commit()
old_model = model
else:
{setattr(old_model, k, v) for k, v in data.items()}
old_model.updated = datetime.datetime.now()
db.session.commit()
context = Context()
context.build_context({
'type': 'interface',
'id': data['id'],
'user': data
})
executor = Executor('debug')
status, message, data = executor.execute(context)
return old_model.id, status, message, data
def create(self, data):
"""
# 将页面数据保存到数据库。
:param data:
:return:
"""
model = InterfaceModel(**data)
db.session.add(model)
db.session.commit()
context = Context()
context.build_context({
'type': 'interface',
'id': model.id,
'user': data
})
executor = Executor('debug')
status, message, data = executor.execute(context)
return model.id, status, message, data