kogito-business-rules-springboot

Kogito with business rules

Description

A quickstart project that shows the use of business rules and processes

This example shows

• make use of DRL to define rules
• make use of business rules task in the process to evaluate rules

• Diagram Properties (top)

• Diagram Properties (bottom)

• Evaluate Person Business Rule (top)

• Evaluate Person Business Rule (bottom)

• Evaluate Person Business Rule (Assignments)

• Exclusive Gateway

• Exclusive Gateway For Adult Connector

• Exclusive Gateway For Children Connector

• Special Handling for Children (top)

• Special Handling for Children (middle)

• Special Handling for Children (bottom)

• Special Handling for Children (Assignments)

Build and run

Prerequisites

You will need:

• Java 11+ installed
• Environment variable JAVA_HOME set accordingly
• Maven 3.6.2+ installed

Compile and Run in Local Dev Mode

mvn clean package spring-boot:run    

Compile and Run using uberjar

mvn clean package 

To run the generated native executable, generated in target/, execute

java -jar target/kogito-business-rules-sprintboot-{version}.jar

Use the application

Submit a request

To make use of this application it is as simple as putting a sending request to http://localhost:8080/persons with following content

{
  "person" : {
    "name" :"john",
    "age" : 20
  }
}

Complete curl command can be found below for adults:

curl -X POST -H 'Content-Type:application/json' -H 'Accept:application/json' -d '{"person" : {"name" : "john", "age" : 20}}' http://localhost:8080/persons

After the Curl command you should see a similar console log

{"id":"fd4f629d-6822-4ca2-a8a6-a74f5f81e83d","person":{"name":"john","age":20,"adult":true}} 

To verify there is no task running for Children

curl http://localhost:8080/persons/{uuid}/tasks

where uuid is the id of the task

Complete curl command can be found below for children:

curl -X POST -H 'Content-Type:application/json' -H 'Accept:application/json' -d '{"person" : {"name" : "john", "age" : 5}}' http://localhost:8080/persons

After the Curl command you should see a similar console log

{"id":"c59054b9-aa1d-4771-bc5e-40f8b32d3ff5","person":{"name":"john","age":5,"adult":false}} 

To verify there is a running task for Children

curl http://localhost:8080/persons/{uuid}/tasks

where uuid is the id of the task

Should return something like

{"c59054b9-aa1d-4771-bc5e-40f8b32d3ff5":"ChildrenHandling"}

Then performing the following command

curl http://localhost:8080/persons/{uuid}/ChildrenHandling/{tuuid}

Where uuid is persons id and tuuid is task id

Should return something similar to

{"person":{"name":"john","age":5,"adult":false},"id":"c59054b9-aa1d-4771-bc5e-40f8b32d3ff5","name":"ChildrenHandling"}

Then we can validate child with

curl -X POST -H 'Content-Type:application/json' -H 'Accept:application/json' -d '{}' http://localhost:8080/persons/{uuid}/ChildrenHandling/{tuuid}

Where uuid is persons id and tuuid is task id

Should return something similar to

{"id":"09f98756-b273-4ceb-9308-fae7cc423904","person":{"name":"john","age":5,"adult":false}}