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.

CMakeLists.txt

@@ -41,6 +41,10 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
 
+IF (WIN32)
+    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+ENDIF()
+
 ###########################################
 ### DEPENDENCY MANAGEMENT with CONAN
 ###########################################
@@ -79,8 +83,13 @@ set(PROTO_FILES
 set(PROTO_PATH ${PROJECT_SOURCE_DIR}/proto/proto)
 
 # compiler binaries
-set(_PROTOBUF_PROTOC "${CMAKE_BINARY_DIR}/build_tools/protoc")
-set(_GRPC_CPP_PLUGIN_EXECUTABLE "${CMAKE_BINARY_DIR}/build_tools/grpc_cpp_plugin")
+IF (WIN32)
+    set(_PROTOBUF_PROTOC "${CMAKE_BINARY_DIR}/build_tools/protoc.exe")
+    set(_GRPC_CPP_PLUGIN_EXECUTABLE "${CMAKE_BINARY_DIR}/build_tools/grpc_cpp_plugin.exe")
+ELSE()
+    set(_PROTOBUF_PROTOC "${CMAKE_BINARY_DIR}/build_tools/protoc")
+    set(_GRPC_CPP_PLUGIN_EXECUTABLE "${CMAKE_BINARY_DIR}/build_tools/grpc_cpp_plugin")
+ENDIF()
 
 # Generated sources
 list(LENGTH PROTO_FILES len_proto_files)