Better Error Handling and Logging

Summary

Better error handling (less exceptions, more error codes) and logging (for more detailed error handling and configuration issues).

Issue: https://gitlab.indiscale.com/caosdb/customers/lfpb/management/-/issues/390

See also the tests in caosdb-cppinttest!2 (merged)

Focus

• The TransactionStatus class represents the current status of a Transaction instance.
• The TransactionCode is a numeric representation of the status and intended for c-compatible error handling.
• Messages and Message classes handle the errors, warnings and info messages that come from the server.
• Logging: The logging can be configured via a json file. Otherwise the default configuration is in place.
• A lot of code was moved in order to comply with -pedantic flag. Don't waste your time

Test Environment

Unit tests should run as described in README_SETUP

Integration tests should run against a linkahead in the f-grpc branch

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related Issues
• Up-to-date CHANGELOG.md
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there spezifications? Are they satisfied?

For further good practices have a look at our review guidelines.

changed title from Dev to Better Error Handling and Logging

changed the description

mentioned in merge request caosdb-cppinttest!2 (merged)

requested review from @daniel and @florian

marked the checklist item All automated tests pass as completed

marked the checklist item Reference related Issues as completed

marked the checklist item Annotations in code (Gitlab comments) as completed

changed the description

changed the description

marked the checklist item I understand the intent of this MR as completed

marked the checklist item All automated tests pass as completed

C-part looks fine to me.

approved this merge request

added 2 commits

• b9aa2c79 - MAINT: Renamed GenericException -> Exception.
• a178b2dc - MAINT: Renamed CAOSDB_LOG -> LOG.

Compare with previous version

added 1 commit

• f213a317 - FIX: Fixed previous commit.

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added 3 commits

• bb681fe3 - DOC: Documentation and typos.
• a561306b - MAINT: Reduced required CMake version to 3.13 (provided by Debian)
• 71285aec - STY: Formatting.

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marked the checklist item The test environment setup works and the intended behavior is as completed

marked the checklist item In-code documentation and comments are up-to-date. as completed

approved this merge request