2. Drools : Drools is a Business Rules Management System (BRMS) solution. It provides a core
Business Rules Engine (BRE).
Drools supports the JSR-94 standard for its business rule engine and enterprise framework for the
construction, maintenance, and enforcement of business policies in an organization, application, or
service.
3.
4. Mule have Drools component to execute business rules in it’s application
5. Now, let us create a simple application in our Anypoint studio. This application we
will be deploying and running in our Mule Standalone Server and will be using
Business rules in our Mule application using Drools
6. We need to keep a .drl files in our application where all the business rules
will be defined .. In our case all the business rules are in this
routingRules.drl file:-
7. Rules in the routingRules.drl are defined as follows:-
You can see the rules that if weight variable value is less than or equal to 50 then
WAREHOUSE_B will be as printed as destination or else WAREHOUSE_A will be printed
8. You can see Mule code that the variable weight is generated randomly and the value of the
weight is been checked by the Drools component which is referring routingRules.drl where all
the rules are set :-
9. You can see the value in weight variable is generated randomly and the
destination value is set to WAREHOUSE_B as defined in .drl file
Now we test our application by hitting http://localhost:8082/example and we
will get the following:-
10. You can see the value in weight variable is again generated randomly and the
destination value is set to WAREHOUSE_A as the weight value is greater
than 50 and the rules are defined in .drl file
Now we hit the url http://localhost:8082/example again and we will get the
following:-
11. In my next slide I will bring some other techniques in Mule implementation .
Hope you have enjoyed this simpler version.
Keep sharing your knowledge and let our Mule community grow
