从文件流上传到ADLS [英] Upload to ADLS from file stream

问题描述

我正在ADF中进行自定义活动，其中涉及从Azure存储Blob读取多个文件，对其进行一些工作，然后最终将结果文件写入Azure Data Lake Store. 最后一步是我停止的地方，因为据我所知，.NET SDK仅允许从本地文件上传.

I am making a custom activity in ADF, which involves reading multiple files from Azure Storage Blobs, doing some work on them, and then finally writing a resulting file to the Azure Data Lake Store. Last step is where I stop, because as far as I can see, the .NET SDK only allows for uploading from a local file.

有什么方法可以(以编程方式)将文件上传到ADL Store中，而该文件不是本地文件中的 吗?可能是Blob或流.如果没有，有什么解决方法吗?

Is there any way to to (programmatically) upload a file to ADL Store, where it is not from a local file? Could be a blob or a stream. If not, any workarounds?

推荐答案

是的，可以从Stream上传，诀窍是先创建文件，然后将流附加到文件:

Yes, it's possible to upload from Stream, the trick is to create file first and then append your stream to it:

string dataLakeAccount = "DLSAccountName";
var adlsFileSystemClient = new DataLakeStoreFileSystemManagementClient(credentials);
adlsFileSystemClient.FileSystem.Create(dataLakeAccount, filepath, overwrite: true);
adlsFileSystemClient.FileSystem.Append(dataLakeAccount, filepath, stream);

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