The MatchSpan interface is used by the attributes/span processor,
however this change does not change the yaml configuration or behavior,
just implementation.
FilterSet has the same filtering logic as MatchSpan previously had, but operates more
generically on just strings instead of spans and adds some additional
options, such as caching.
**Link to tracking Issue:** Side effect of #560 to help keep metrics and trace processors using matching configs the same.
**Testing:** unit tests updated, no new behavior, just implementation swapout
As we are preparing for Beta release we want to cleanup publicly exported
types and interfaces and do all necessary refactoring and breaking changes
now, before the Beta release. We will have a lot less leeway for breaking
changes after the Beta release.
Component related type declarations are now all in the `component` package.
This makes it possible for the interfaces to reference each other. This
was were very restricted earlier because component interfaces were in 5
different packages and many proposals were impossible to implement because
they would result in circular dependencies between packages.
(An example upcoming new capability that is enabled by this refactoring
is for components to query the Host for other components and for factories).
List of changes in this commit:
- Move all factory interfaces and component interfaces to component package.
- Rename old factories and components interfaces to use "Old" suffix for clarity.
- Eliminate forced checks that components implement factories. This is already
enforced by the compiler when the factory is added to the Defaults() and
was unnecessary code.
- Eliminated some unnecessary codes (removed overall over 200 lines).
- Run `go mod tidy` on testbed.
Warning: this is a breaking change to publicly exported types and function
signatures. We announced that a breaking change is comming. Once we agree
to merge this commit we will need to announce the exact list of changes
and guide component authors to modify their components accordingly.
Future changes:
- Once all components are migrated to the new internal representation,
delete all "Old"-suffixed definitions. This will likely be done while
we are still in Beta phase, before the Stable release.
* Refactor include/exclude processor logic and add it to span processor.
* Add files containing common logic.
* Move matching and attribute functions to internal
This adds "to_attributes" functionality that complements already
existing "from_attributes" functionality. This is very useful for
extracting attributes from span names and reducing cardinality of
span names.
For usage and examples see rocessor/spanprocessor/config.go and
processor/spanprocessor/testdata/config.yaml.
Testing: unit tests added.
Documentation: see readme.md, config.go and config.yaml