Do the given action with the given service.
Do the given action with the given service.
This should be used in preference to #locate when possible as it will allow the service locator to add in things like circuit breakers.
It is required that the service locator will, based on the service call circuit breaker configuration, wrap the invocation of the passed in block with a circuit breaker.
The name of the service.
The service call descriptor that this lookup is for.
A block of code that takes the URI for the service, and returns a future of some work done on the service. This will only be executed if the service was found.
The result of the executed block, if the service was found.
Locate a service with the given name.
Locate a service with the given name.
The name of the service.
The service call descriptor that this lookup is for.
The URI for that service, if it exists.
Locate a service with the given name.
Locate a service with the given name.
The name of the service.
The URI for that service, if it exists.
A service locator that doesn't resolve any services.