* migrate Clock classes to API
- move Clock* + Util into API
- add a deprecated wrapper for ClockFactory and Util
- remove unused StopWatch* classes
* review feedback
* replace ClockFactory with Clock
It's not really a factory, and really only provides access to a system clock. Create a
Clock class which is more clear in its purpose.
* remove time Util class
per review feedback, it's only used in Zipkin. Removed some unused consts from ClockInterface
* Apply suggestions from code review
Co-authored-by: Tobias Bachert <git@b-privat.de>
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Co-authored-by: Tobias Bachert <git@b-privat.de>
* adding exporter + transport registry
to remove the hidden dependency between SDK and contrib, move all of the exporter knowledge out of
exporter factory, and invent a registry to hold those values. The registry can be added to by contrib
modules as part of composer autoloading.
This also allows users to override things like transports (eg, provide their own grpc transport).
Remove exporter's fromConnectionString as it's not in spec, and I couldn't get it to work nicely with the
registry idea.
* fixing up examples
* allow callables to be registered as factories
adding an example of replacing a registered transport factory with another implementation
* Registry to FactoryRegistry
* new relic exporter factory, tests
* review suggestions
* tidy
* change fromEnvironment() to create() in factories
Brett McBride
Weslen Teche