References
CPS-1492 - Getting issue details... STATUS
Subscription Creation Events Handling
Assumptions
| # | Assumption | Notes |
|---|---|---|
| 1 | Forwarded Subscription Event communicates asynchronously. (NCMP to DMI Plugins) | Once off timer would be responsible to publish messages in NCMP. |
| 2 | Forwarded Subscription Event Responses communicates asynchronously. (DMI Plugins to NCMP) | Then, the NCMP would wait a response(s) within the timeframe agreed on. TBD: A single step response or two step responses will be provided in the solution. |
| 3 | The NCMP component should create Subscription Create Outcome message and publish it into topic (cm-avc-subscription-response) in which Client Apps consumed from. | The Outcome Response schema need to be decided on. |
Issues & Decisions
| # | Issue | Notes | Decision |
|---|---|---|---|
| 1 | Possible 'timeframe' period for timeout | DMI to NCMP response timeout | 30 sec (Configurable param/property) |
| 2 | Response in two steps or in a single step should be discussed with shareholders. | from DMI to NCMP responses | Is the ACK would be required? |
Possible Topic Names
| # | Source | Content | Topic Name | Destination |
|---|---|---|---|---|
| 1 | NCMP | Forwarded Subscription Event | ncmp-dmi-cm-avc-subscription | DMI Plugins |
| 2 | DMI Plugins | Forwarded Subscription Event Response | dmi-ncmp-cm-avc-subscription | NCMP |
| 3 | NCMP | Subscription Event Outcome | cm-avc-subscription-response | Client Apps |
Implementation Details
- The NCMP would publish messages (Forwarded Subscription Event) to the topic ncmp-dmi-cm-avc-subscription via once-off timer.
- Then, the NCMP would wait a response(s) within the timeframe (timeout) agreed on e.g. 30 seconds.
- Response in two steps
- Ack (response with DMI plugin detais e.g. DMI X and Y has started to processing)
- Process result response: 2 out of 3 DMI has responed. (The percentage is %66.)
- Response in a single step
- Process result response: 2 out of 3 DMI has responed. (The percentage is %66.)
- Response in two steps
- Finally, the NCMP plugin create outcome message, and publish it to the topic cm-avc-subscription-response.