PCM Development/Palladio Concall/Minutes 20181210

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Participants

  • Steffen Becker
  • Markus Frank
  • Floriment Klinaku
  • Sebastian Krach
  • Maximilian Walter
  • Dominik Werle

Notes

Follow up of Simulizar workshop

  • State of documentation, state of the following:
    • Arbitrary Load Balancing Strategies? (Patrick Firnkes) → TODO DW: Check what Patrick Firnkes has done on Load Balancing Strategies, Ask Anne / Patrick
  • Prototype of next gen Simulizar (Sebastian) → WiP, Sebastian is still looking for student
  • Possible student's theses (selection of reconfiguration mechanisms) (Max) → WiP
    • Review of theses by Sebastian → WiP
  • Review of removal of IModelAccess (Max)
    • State of code review by Floriment → Comments and several issues are on GitHub, another session after the issues have been received
  • Impliciation of removing PCM measuring points without additional information (Dominik) → No update
  • Assign tasks for cleanup of top 10 classes (wrt code) → No update
  • Discussion about changes that shall be released → Discuss with new version of SimuLizar

General switch to EPL 2.0 license (Stephan)

  • Delta to EPL 2.0?
    • Compatibility to GPL, but not beneficial to us, other than having one license.
    • If we still can: share code, binaries and release binaries it should be fine.
    • The current common licence should be used in all projects.
  • Decision: Switch to EPL 2.0

Introduction of code owners (Stephan)

  • Same concept in JIRA, assignment can become outdated
  • Merge/pull requests should get through. This should also be possible more quickly.
  • Code ownership can be reassigned by administrators of the organization, therefore there should not be a problem.
  • Align process with normal process for people leaving organizations.

StoEx-Xtext integration (Stephan)

  • Problem: requires changing pcm.ecore and regenerating the model code.
  • Test cases for StoEx are passed.
  • Inline validation only uses validation by EMF, but does not trigger the validation by Sirius
  • Decision: Move forward, change metamodell/regenerate if necessary


Agenda

  1. Follow up of Simulizar workshop
    • State of documentation, state of the following:
      • Arbitrary Load Balancing Strategies? (Patrick Firnkes)
    • Prototype of next gen Simulizar (Sebastian)
    • Possible student's theses (selection of reconfiguration mechanisms) (Max)
      • Review of theses by Sebastian
    • Review of removal of IModelAccess (Max)
      • State of code review by Floriment
    • Impliciation of removing PCM measuring points without additional information (Dominik)
    • Assign tasks for cleanup of top 10 classes (wrt code)
    • Discussion about changes that shall be released
  2. General switch to EPL 2.0 license (Stephan)
    • Licenses mentioned on Github and in code differ in some cases
    • Apply EPL 2.0 to all projects?
    • Release and usage of new license feature required
      • Replaces all old and custom licenses
      • More simple installation dialog (only one license to accept)
  3. Introduction of code owners (Stephan)
    • code owners is concept of Github to define responsible person for code parts
    • used in kit-sdq group to track code and build responsibilities
    • branch protection rules can require review of a code owner before merge
    • role of code owner: watch for open pull requests and fix build errors
    • initial definition of owner based on JIRA
    • opinions?
  4. StoEx-Xtext integration (Stephan)
    • Idea: Add constraints to PCM Core elements that assert the correct type of a stoex by calling ExpressionTypeVisitorFancyTM
      • cool new feature
      • but also simplifies integration code for Xtext inline editor