Connection

• Doodle: https://doodle.com/meeting/participate/id/b4Rg1Y7e
• Date: 2022-10-XX – XX:XX UT
• Zoom details will be sent out in an e-mail

Participants

Agenda

Discussion

• Should ACS forward the cbStop callback to the receivers when coming from the unexpected StartState / StopState states?
  
  • ICT-20598 - Getting issue details... STATUS
• Java 17 Migration
  • Migration Plans - Java 17 
  • Target is 2023APR
  • Offline docker images should upgrade the provided Java version around the time
  • Applications explicitly defining source/target/release version could be transitioned gradually
• Java EE / Jakarta EE Migration
  • Migration Plans - Jakarta EE 
  • The proposal is to provide both package version of the APIs with ACS for a transition time (1 or 2 cycles at least)
• Hibernate 6.x / Spring 6.x Migration
  • This needs to be an observatory-wide transition
  • Hibernate 6 is working fine
    • Migration Plans - Hibernate 6
    • Hibernate Criteria API full deprecation, may be considerable work for some applications
  • Spring Framework 6 is working fine
    • Migration Plans - Spring Framework 6
    • Not yet officially released
      • 6.0.0-RC1: Base libraries
      • 6.0.0-M6: Security libraries
      • 5.8.0-M2: Security CAS
      • 3.0.0-RC1: LDAP
    • Small configuration changes + discourage use of HibernateTemplate
      • NullPointerException → Could be fixed by changing some configurations that ended up breaking other parts of the applications
        • The official recommendation is to stop using HibernateTemplate anyway 
      • getHibernateTemplate().<save,delete,get,saveOrupdate,etc.>() → getSessionFactory().getCurrentSession()
      • getHibernateTemplate().execute(...) → getSessionFactory().fromSession(...)
  • TMCDB Explorer as test application
    • Biggest pain was to replace Hibernate Criteria API by JPA's Criteria API
    • Several smaller changes in code and configuration
    • Additional unexpected changes in default configuration values and default behavior
    • After several tweakings, TMCDB Explorer is working fine in all the use cases tested
    • Criteria API upgrade to be delivered in 2022DEC

Short Term (2022DEC)

• Maintenance (Bug-fixing / Improvements)
• Obsolescence Management
  • No obsolescence management since 2022DEC is for stabilization
  • TMCDB Explorer to move away of Hibernate Criteria API – 2022DEC
  • Progress towards Java 17 / Jakarta EE / Hibernate 6.x / Spring Framework 6.x / Spring Boot 3.x
• Continue NC implementation study – 2022DEC
  • https://bitbucket.sco.alma.cl/projects/ALMA/repos/almasw/compare/diff?sourceBranch=refs%2Fheads%2Fnc-refactoring&targetRepoId=13
• Implement Java and C++ code coverage mechanics – 2022DEC
• ComponentCaller API Security Implementation – 2022DEC
• TMCDB Explorer JPA Criteria API – 2022DEC

Mid Term (2023FEB --> 2023APR)

• Java 17
• Jakarta EE / Hibernate 6.x / Spring Framework 6.x / Spring Boot 3.x – 2023APR → 2023JUN
• C++ Modernization
  • Logging Service refactoring/change of technology – 2023FEB → 2023AUG
• Development and Community OS Support
  • Jenkins Build + Phase A tests
    • Other operating systems?

Long Term (TBD)

• ACS Services Modernization
  
  • ZeroMQ-based BulkData transfer implementation
  • CDB API alternative (REST, SOAP, G-RPC, Falcor, ICE, etc.)
  • Logging system technology replacement (Boost::Log, etc.)
  • (Ralph) Update exceptions so they can be propagated through std::future objects
  • Interface Repository (???)
  • Naming Service (???)

De-scoped:

• Java Modules

Other Input

Not Relevant

Conclusions

2022DEC

* Tentative base for 2022DEC until the meeting has been held

Priorities

1. Maintenance
2. Testing Coverage Work
3. Component Caller API Security Implementation
4. NC Implementation Study
5. Obsolescence Management

Action Items