Presentation

PoC code

Running PoC

Install Tomcat with pre-packaged Camunda engine

Follow installation instructions from here: https://docs.camunda.org/manual/7.5/installation/full/tomcat/pre-packaged/

No need for any manual configuration, just unpack it and start Tomcat.

PoC was tested on https://camunda.org/release/camunda-bpm/tomcat/7.11/camunda-bpm-tomcat-7.11.0.tar.gz. 

Build PoC

Maven is needed to build it.

Unzip the PoC package and run mvn clean install from camunda_poc directory.

Run PoC

Copy PoC shared code to Tomcat lib directory: copy camunda_poc/common_code/target/camunda-poc-common-code-1.0-SNAPSHOT.jar to Tomcat lib directory (server/apache-tomcat-9.0.19/lib).  You need to restart Tomcat after this.

Now you can deploy test applications on running Tomcat without restarts:

• copy camunda_poc/test_app1/target/camunda-poc-test-app1.war to Tomcat webapps directory (server/apache-tomcat-9.0.19/webapps).
• do the same thing for test_app2

Go to Camunda Tasklist application (http://localhost:8080/camunda/app/tasklist), click Start process and run App1_process (or any other for that matter).

Observe Tomcat logs in server/apache-tomcat-9.0.19/logs/catalina.out.

You should get output similar to following in the logs:

>>>>>>>>>> App1LocalDelegateBean invoked
>>>>>>>>>> App1LocalDelegateBean invoked
>>>>>>>>>> App1LocalComponentBean.beanMethod() invoked
>>>>>>>>>> COMMON Delegate Bean invoked
>>>>>>>>>> COMMON Delegate Bean invoked
>>>>>>>>>> COMMON SpringBean.beanMethod() invoked
>>>>>>>>>> App1AnotherDelegateBean invoked
>>>>>>>>>> App2LocalDelegateBean invoked
>>>>>>>>>> App2LocalDelegateBean invoked
>>>>>>>>>> App2LocalComponentBean.beanMethod() invoked
>>>>>>>>>> COMMON Delegate Bean invoked
>>>>>>>>>> COMMON Delegate Bean invoked
>>>>>>>>>> COMMON SpringBean.beanMethod() invoked
>>>>>>>>>> App2LocalGroovyClass.someMethod() invoked
>>>>>>>>>> CommonGroovyClass.someMethod() invoked