====== SAP ABAP Parameters Monitoring ======
  This monitor supervises SAP ABAP profile parameters per application server,
  with rule-based alarms on value mismatch, value drift, and non-default configuration.

===== What Can Be Monitored =====

You can detect and alert on:
  * Parameter value mismatch against an expected value
  * Parameter runtime changes between executions
  * Parameter values that differ from SAP default values

This supports proactive detection of configuration drift and policy deviations across ABAP instances.

===== Monitored Data =====

The monitor collects ABAP parameters and evaluates, per application server:
  * Parameter name
  * Current value
  * Default value

===== Configuration Hints =====

  * One surveillance row targets one ABAP parameter name.
  * **Param name** must be explicit (''*'' is not valid and should not be used).
  * Set **Expected value** to ''*'' to disable value-matching for that row.
  * Enable **Check changes** to detect value drift since previous run.
  * Enable **Check default** to detect values different from SAP defaults.
  * If **Severity** is disabled, the matching row is ignored for alarms.
  * **Auto clear** controls whether emitted alarms are clearable.
  * **Alarm** controls alarm generation for the row.
  * **Report** controls evaluation in report mode.

===== Configuration =====
==== Surveillance Table ====

^ Field ^ Required ^ Default ^ Description ^
| Active | Yes | ''true'' | Enables/disables this surveillance row. |
| Param name | Yes | (empty) | Exact ABAP parameter name to monitor. |
| Expected value | Yes | (empty) | Expected value/pattern. If set to ''*'', value mismatch checking is disabled. |
| Default value | Yes | (empty) | Display/reference column populated from collected data (hidden in UI). |
| Expected unsub value | No | ''*'' | Reserved hidden field; currently not used for alarm generation. |
| Check changes | Yes | ''false'' | Alarm if current parameter value changed compared to last stored run value. |
| Check default | Yes | ''false'' | Alarm if current value is set and differs from SAP default value. |
| Severity | Yes | MAJOR | Alarm severity used when a condition is met. |
| Auto clear | Yes | ''true'' | Alarms generated by this monitor are clearable when condition recovers. |
| Alarm Tag | No | (empty) | Optional custom alarm tag/prefix. |
| Alarm | No | ''true'' | Enables/disables alarm generation for this row. |
| Report | No | ''false'' | Enables/disables evaluation of this row in report mode. |

===== Alarm Conditions =====

For each active surveillance row matching a parameter:
  * **Expected value alarm**: triggered when current value (or default value if current value is empty) does not match **Expected value** and **Expected value** is not ''*''
  * **Check changes alarm**: triggered when current value differs from previously stored value
  * **Check default alarm**: triggered when current value is not empty and differs from default value

===== Generated Alarms =====

Alarm messages include parameter and application server context, for example:
  * ''Parameter <param> set to <currentOrDefault> instead of <expected> on <appServer>''
  * ''Parameter <param> changed from <previous> to <current> on <appServer>''
  * ''Parameter <param> set to <current> instead of <default> (Default) on <appServer>''

===== Example =====

^ Active ^ Param name ^ Expected value ^ Check changes ^ Check default ^ Severity ^ Auto clear ^ Alarm Tag ^ Alarm ^ Report ^
| true | ''rdisp/wp_no_dia'' | ''20'' | false | false | MAJOR | true | ''ABAP,CAPACITY'' | true | false |
| true | ''abap/heap_area_dia'' | ''2147483648'' | true | false | Minor | true | ''ABAP,MEMORY'' | true | false |
| true | ''login/min_password_lng'' | ''*'' | false | true | WARNING | true | ''ABAP,SECURITY'' | true | false |

Resulting alarms:
  * ''Parameter rdisp/wp_no_dia set to 18 instead of 20 on DVEBMGS00''
  * ''Parameter abap/heap_area_dia changed from 1073741824 to 2147483648 on DVEBMGS00''
  * ''Parameter login/min_password_lng set to 6 instead of 8 (Default) on DVEBMGS00''