Implementing strategy backend using nassau/registry-compiler

services.yml

#
# Convert this configuration value to a container parameter: %foobar.api_strategy%
#
foobar:
  api_strategy: readonly

services:
  foobar.api.strategy:
    class: 'FoobarBundle\Service\Api\StrategyApiService'
    public: false
    arguments:
      - '@foobar.api.strategy.collection'
    calls:
      - [ 'setStrategy', [ '%foobar.api_strategy%' ] ]

#
# See: https://github.com/mlebkowski/registry-compiler - automatically collect services using tags
# 
  foobar.api.strategy.collection:
    class: 'Doctrine\Common\Collections\ArrayCollection'
    public: false
    tags:
      - name: nassau.registry # magic!
        tag: foobar.service.strategy_api_service
        order: indexed
        alias_field: strategy
        class: 'FoobarBundle\Service\Api\ApiServiceInterface'

  foobar.service.api_service.strategy.logger:
    class: 'FoobarBundle\Service\Api\LoggingApiService'
    public: false
    arguments: [ "@foobar.service.api_service.backend", "@logger" ]
    tags:
      - name: foobar.service.strategy_api_service
        strategy: default

  fobar.service.api_service.strategy.readonly:
    public: false
    class: 'FoobarBundle\Service\Api\ReadOnlyApiService'
    arguments: [ "@foobar.service.api_service.strategy.logger" ]
    tags:
      - name: foobar.service.strategy_api_service
        strategy: readonly
        
  foobar.service.api_service.backend:
    class: 'FoobarBundle\Service\Api\BackendApiService'
    public: false
    arguments: [ "@foobar.api.sdk" ]