S3 bucket as a source

[Matwey V. Kornilov]

Hello,

I have an S3 bucket and I would like to process the objects metainfo 
(such as keys (filenames), metainfo, tags, etc.).
I don't care about the objects content since it is irrelevant for my 
task. What I want is to construct a data stream where each instance is a 
metainfo attached to some object from the bucket.

Is it anyhow possible to tune and reuse the FileSystem connector for my 
purposes? The connector is provided to read content of files, while I 
would like to read content of directory, or metainfo for every file.