我正在尝试在Azure Data Factory中构建一个自定义活动,该活动获取一个blob作为输入数据集,并希望将此blob的sas令牌路径传递给需要此类路径的API。
有没有办法在自定义活动中使用sas令牌来获取blob的路径?
发布于 2018-02-15 06:41:32
我想出了一个办法。ADF v1中的自定义活动的一部分是具有上下文参数的Execute方法。从该上下文中,您可以获得blob存储的连接字符串和blob的路径,然后可以像这样提取sas令牌:
public override IDictionary<string, string> Execute(
AOMDotNetActivityContext context,
IActivityLogger logger)
{
string blobConnectionString = context.ConnectionString;
CloudStorageAccount inputStorageAccount = CloudStorageAccount.Parse(blobConnectionString);
var blob = new CloudBlob(new Uri(inputStorageAccount.BlobEndpoint, Path.Combine(context.FolderPath, context.FileName)), inputStorageAccount.Credentials);
SharedAccessBlobPolicy adHocSAS = new SharedAccessBlobPolicy()
{
SharedAccessExpiryTime = DateTime.UtcNow.AddHours(48),
Permissions = SharedAccessBlobPermissions.Read | SharedAccessBlobPermissions.Delete
};
string sasBlobToken = blob.GetSharedAccessSignature(adHocSAS);
string fullUri = new Uri(blob.Uri, sasBlobToken).ToString();
https://stackoverflow.com/questions/48216584
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