Order of Relevancy Filtering (Hierarchical Filtering)
Technical Complexity
Simple
Purpose
- Allow the listener to receive only the root event of a system change.
Situation
- In a telecommunication environment, application are routed through a network of switched and miscellaneous communication equipments. When a switch goes down, applications must be routed through another switch, but a crew has to be dispatched to fix the faulty equipment. To do that, we must be able to capture all system events, but to only forward the root event (which switch is down) to the service crew.
Design
Node Model
Implementation Model
IEP Constructs Used
Process Flow
- Inbound stream
- Projection and Filter of root causes
- Outbound Stream
Projection and Filter of Root Causes
Construction
EJB Functionality (Recursive state change)
Sample Files
Example Limitations
Labels
topic-iepse, component-jbi
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