Add HazelcastJetService for commons
Add PipelineFactory for commons
Add Uc1PipelineFactory
Add NewHistoryService for stepwise migration

Add a common class for building kafka properties
Add commit offset option in order to provide lag information

MaxEmerold authored 3 years ago and Sören Henning committed 3 years ago

- Rework flags UC1,UC2,UC3,UC4
- Enhanced Properties implementation UC1,UC2,UC3,UC4
- Changed certain variable names
- Changed Exceptions to IllegalStateExceptions UC1,UC2,UC3,UC4
- Changed Implementation of flag Check UC1,UC2,UC3,UC4
- Removed old implementation UC2 Hazelcast Jet
- Fixed HashMapSupplier UC4 Hazelcast Jet
- Changed Implementation EventDeserializer UC4 Hazelcast Jet
- Added Logger use in History Service Main UC1,UC2,UC3,UC4

Fixed Checkstyle and PMD for Hazelcast Jet commons project, UC1 project, UC2 project, UC3 project, UC4 project

Still open Feedback:
- Adjust UC2 implementation

Still open Task:
- Implement JUnit Test for UC2,UC3,UC4