Previous code used integer keys in port map. But because
JSON doesn't support integer keys they were converted
to corresponding string representations and were not
found on subsequent deployments
Change-Id: I0477a043854a5ed78545d3b944397cdbf2352bd8
Closes-Bug: #1444681
Fixed typo in method implementation. `select` command was used
for data filtration instead of `where`
Change-Id: I80b859333089865f8f054b3cf35746e65eeef192
Closes-Bug: #1443686
