Galaxy Bowttie/BWA/BLAST tools/dataset restricted access per user

Add following line to bowtie_wrapper.xml/bwa_wrapper.xml 
--email=$__user_email__ 

Add following lines to bowtie_wrapper.py/bwa_wrapper.py 
parser.add_option( '', '--email', dest='email', help='email' ) 

Above line should add before the options, args) = parser.parse_args() line After the stdout = '' add following lines.
if options.ref in "[dataset paths]" :
  if options.email in "[email addresses]":
    sys.stdout.write( 'Permission granted! ' )
  else:
    stop_err( 'You dont have permissions!' ) 
else: 
 sys.stdout.write( 'Permission granted! ' ) 

Retart the Galaxy! Now you can restrcit tool datasets per user without having two Galaxy instances.

/Chanaka