Class: Prefab::ConfigResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/prefab/config_resolver.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base_client, config_loader) ⇒ ConfigResolver

Returns a new instance of ConfigResolver.



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# File 'lib/prefab/config_resolver.rb', line 7

def initialize(base_client, config_loader)
  @lock = Concurrent::ReadWriteLock.new
  @local_store = {}
  @additional_properties = { Prefab::CriteriaEvaluator::NAMESPACE_KEY => base_client.options.namespace }
  @config_loader = config_loader
  @project_env_id = 0 # we don't know this yet, it is set from the API results
  @base_client = base_client
  make_local
end

Instance Attribute Details

#project_env_id ⇒ Object

this will be set by the config_client when it gets an API response



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# File 'lib/prefab/config_resolver.rb', line 5

def project_env_id
  @project_env_id
end

Instance Method Details

#evaluate(config, lookup_key, properties = {}) ⇒ Object 



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# File 'lib/prefab/config_resolver.rb', line 55

def evaluate(config, lookup_key, properties = {})
  props = properties.merge(@additional_properties).merge(Prefab::CriteriaEvaluator::LOOKUP_KEY => lookup_key)

  Prefab::CriteriaEvaluator.new(config,
                                project_env_id: @project_env_id, resolver: self, base_client: @base_client).evaluate(props)
end

#get(key, lookup_key, properties = {}) ⇒ Object 



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# File 'lib/prefab/config_resolver.rb', line 45

def get(key, lookup_key, properties = {})
  @lock.with_read_lock do
    raw_config = raw(key)

    return nil unless raw_config

    evaluate(raw(key), lookup_key, properties)
  end
end

#raw(key) ⇒ Object 



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# File 'lib/prefab/config_resolver.rb', line 39

def raw(key)
  via_key = @local_store[key]

  via_key ? via_key[:config] : nil
end

#to_s ⇒ Object 



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# File 'lib/prefab/config_resolver.rb', line 17

def to_s
  str = "\n"
  @lock.with_read_lock do
    @local_store.keys.sort.each do |k|
      v = @local_store[k]
      elements = [k.slice(0..49).ljust(50)]
      if v.nil?
        elements << 'tombstone'
      else
        config = evaluate(v[:config], {})
        value = Prefab::ConfigValueUnwrapper.unwrap(config, k, {})
        elements << value.to_s.slice(0..34).ljust(35)
        elements << value.class.to_s.slice(0..6).ljust(7)
        elements << "Match: #{v[:match]}".slice(0..29).ljust(30)
        elements << "Source: #{v[:source]}"
      end
      str += elements.join(' | ') << "\n"
    end
  end
  str
end

#update ⇒ Object 



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# File 'lib/prefab/config_resolver.rb', line 62

def update
  make_local
end