Add GetHdfsFileInfo Processor

Add GetHdfsFileInfo Processor to be able to get stats from a file system.

This processor should support recursive scan, getting information of directories and files.

File-level info required: name, path, length, modified timestamp, last access timestamp, owner, group, permissions.

Directory-level info required: name, path, sum of lengths of files under a dir, count of files under a dir, modified timestamp, last access timestamp, owner, group, permissions.

The result returned:

• in single flow file (in content - a json line per file/dir info);
• flow file per each file/dir info (in content as json obj or in set of attributes by the choice).