Filter with multiple levels (shown as pseudocode)

This example shows a filter with multiple levels, and then presents the same filter as pseudocode, to help clarify how the filter is processed.

Log Code  Description       Level  Conditions

    ALL   Global Criteria   1      LSN GE 0000000000001000
                                   LSN LE 0000000000008000

IMS 01    IMS Message       2      MSGXSTXT(*) EQ 'UNAUTHORIZED'

IMS 03    IMS Message       2      MSGXSTXT(*) EQ 'UNAUTHORIZED'

IMS 50    Database Update   2      DATABASE EQ 'ACCOUNTS'

For all log codes:
If (LSN >= 0000000000001000) AND (LSN <= 0000000000008000) then
  Continue to level 2
else
  Bypass record

For log code 01:
If message text contains the string 'UNAUTHORIZED' then
  Process record

For log code 03:
If message text contains the string 'UNAUTHORIZED' then
  Process record

For log code 50:
If database name is 'ACCOUNTS' then
  Process record

Otherwise:
  Bypass record