Check the count and Size of files

Good Morning,

I have a package that looks for files (in this case 7) and if the files exists it loads the data into the tables. The question i have is , is there a way in SSIS or a task that checks the location of the files and if there are 7 files loads the data or if the number of files are less than or greater than 7 send an email to the concerned person and abort the job and send an email as well, please advice me or where to look at.

Thanks

SV