错误记录邮件的要求（邮件应包含所有丢失的文件详细信息）。 在 ADF 流程中

Question

the reqirement is simple, i have a folder having 4 txt files(1.txt,2.txt,3.txt,4.txt). the Flow is controlled by a parameter called all or some which is of string type.

If i select all in the parameter, all 4 file should be processed. the requirement starts here >>

1. IF any file is missing from the folder(for ex 2.txt and 3.txt is not present and i selected ALL in the parameter), i need a mail saying file is 2.txt and 3.txt is missing.

2. If i select some in the parameter, for ex 1.txt and 4.txt and if any of the file is missing 1.txt and 4.txt is missing(for example 1.txt is missing), i need a mail with the missing file name(ie 1.txt in our case).

Answer 1

capture missing file details in one variable

I tried to repro this capturing missing files using azure data factory. Below is the approach.

• Take a parameter of array type in the pipeline. During runtime, you can give the list of file names in a folder to be processed in this array parameter.

• Take a get metadata activity and add a dataset in the activity. Click +New in the field list and select child items as an argument.

• Take a filter activity and give the array parameter value in items and write the condition to filter the missing files in condition box

item: @pipeline().parameters.AllorSome

condition: @not(contains(string(activity('Get Metadata1').output.childItems),item()))

• I tried to run this pipeline. During run time, four file names are given to the array parameter.

• Get Metadata activity output has three file names.

• Parameter has 4 filenames and Get meta data activity has 3 filenames. Missing file names are to be filtered out.
• Output of filter activity:

• Use this output and send it in email.

• Refer the MS document on How to send email - Azure Data Factory & Azure Synapse |Microsoft Learn for sending email.