Message flow examples
This are some examples how a message flows in the Open Smart Grid Platform.
Message Flow: Request/Acknowledge/Poll
Step | Description |
1 | WS adapter receives client soap request with organization certificate and organization id in soap header |
2 | WS adapter authenticates organization, checks authorizations and sends request message to domain adapter (via queue) |
3 | WS adapter returns soap acknowledgement with correlation id |
4 | Domain adapter sends request message to core (via queue) |
5 | Core determines protocol for device and sends request message to protocol adapter (via queue) |
6 | Protocol adapter translates domain request message, sends request to device and receives response from device |
7 | Protocol adapter sends response message to core (via queue) |
8 | Core forwards response message to domain adapter (via queue) |
9 | Domain adapter forwards response message to response queue |
10 | Client app polls for response using correlation id (with organization certificate and organization id in soap header) |
11 | WS adapter retrieves response message from response queue |
12 | WS adapter sends soap response to client app |
Message Flow: Request/Acknowledge/Notify
Step | Description |
1-8 | Same as request/acknowledge/poll message flow |
9 | Domain adapter forwards response message to WS adapter |
10 | WS adapter stores response in DB |
11 | WS adapter sends soap notification with correlation id to the client app* |
12 | Client app sends soap request with correlation id to retrieve the response |
13 | WS adapter retrieves (and deletes) response from DB |
14 | WS adapter sends soap response to the client app |
*In case the response is not timely retrieved by the client app, OSGP will resend the notification with correlation id to the client app. The amount of retries is configurable.
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