您可以扩展此答案还是有文档可以查看如何将服务总线主题链接到 azure 函数然后转储到数据湖中?
我不确定你使用什么语言,这里是用python实现的。
您可以使用服务总线触发器来侦听来自服务总线队列或主题的消息。然后您可以使用数据湖 SDK 来保存消息:
使用 azure function service bus trigger 监听消息:
import logging
import azure.functions as func
def main(msg: func.ServiceBusMessage):
#put the logic of process the message here
logging.info('Python ServiceBus queue trigger processed message: %s',
msg.get_body().decode('utf-8'))
function.json
{
"scriptFile": "__init__.py",
"bindings": [
{
"name": "msg",
"type": "serviceBusTrigger",
"direction": "in",
"queueName": "queuename",
"connection": "bowman1012_SERVICEBUS"
}
]
}
并使用如下代码将消息附加到数据湖:
from azure.storage.filedatalake import DataLakeServiceClient
connect_str = "DefaultEndpointsProtocol=https;AccountName=0730bowmanwindow;AccountKey=xxxxxx;EndpointSuffix=core.windows.net"
datalake_service_client = DataLakeServiceClient.from_connection_string(connect_str)
myfilesystem = "test"
myfolder = "test"
myfile = "FileName.txt"
file_system_client = datalake_service_client.get_file_system_client(myfilesystem)
directory_client = file_system_client.create_directory(myfolder)
directory_client = file_system_client.get_directory_client(myfolder)
print("11111")
try:
file_client = directory_client.get_file_client(myfile)
file_client.get_file_properties().size
data = "Test2"
print("length of data is "+str(len(data)))
print("This is a test123")
filesize_previous = file_client.get_file_properties().size
print("length of currentfile is "+str(filesize_previous))
file_client.append_data(data, offset=filesize_previous, length=len(data))
file_client.flush_data(filesize_previous+len(data))
except:
file_client = directory_client.create_file(myfile)
data = "Test2"
print("length of data is "+str(len(data)))
print("This is a test")
filesize_previous = 0
print("length of currentfile is "+str(filesize_previous))
file_client.append_data(data, offset=filesize_previous, length=len(data))
file_client.flush_data(filesize_previous+len(data))
如果你需要在本地开发azure function,你需要'azure function core tools','language environment','VS Code and azure function extension'。
有关更多信息,请查看以下内容:
https://docs.microsoft.com/en-us/azure/azure-functions/functions-run-local?tabs=windows%2Ccsharp%2Cbash
https://docs.microsoft.com/en-us/azure/azure-functions/functions-reference-python
https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-service-bus-trigger?tabs=python
这是数据湖SDK的API参考(在这个网页中,您可以找到与基于python和azure的各种服务交互的所有方法):
https://docs.microsoft.com/en-us/python/api/azure-storage-file-datalake/azure.storage.filedatalake.datalakeserviceclient?view=azure-python