Id allocation failing

Id allocation failing

Issue
=====
While reading data store if data is not present in the DS,
"ExpectedDataObjectNotFoundException" exception is thrown.
Since this exception is not handled, ID allocation is failing.

Fix
====
Added try-catch block to handle the "ReadFailedException" exception
so that the code execution does not stop if read fails.

https://gerrit.ericsson.se/#/c/4354671/

Change-Id: I00423597e1681085b1fbcd187e11e5f2dd7582cd
Signed-off-by: Amitesh Soni <amitesh.soni@ericsson.com>