Module: Legion::API::Routes::Stats

Extended by:
Logging::Helper
Defined in:
lib/legion/api/stats.rb

Constant Summary collapse

EXTENSION_TASK_IVARS = 
{
  discovered:   :@extensions,
  subscription: :@subscription_tasks,
  every:        :@timer_tasks,
  poll:         :@poll_tasks,
  once:         :@once_tasks,
  loop:         :@loop_tasks,
  actors:       :@running_instances
}.freeze

Class Method Summary collapse

Class Method Details

.collect_api ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 194

def collect_api
  port = Legion::Settings.dig(:api, :port) || Legion::Settings.dig(:http, :port) || 4567
  info = { port: port }

  # Puma thread pool stats if available
  puma_server = Puma::Server.current if defined?(Puma::Server) && Puma::Server.respond_to?(:current)
  if puma_server.respond_to?(:pool_capacity)
    info[:puma] = {
      pool_capacity: puma_server.pool_capacity,
      max_threads:   puma_server.max_threads,
      running:       puma_server.running,
      backlog:       puma_server.backlog
    }
  end

  info[:routes] = begin
    Legion::API.routes.values.flatten.count
  rescue StandardError
    nil
  end
  info
rescue StandardError => e
  { error: e.message }
end

.collect_cache ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 83

def collect_cache
  return { connected: false } unless defined?(Legion::Cache)

  info = { connected: Legion::Cache.connected? }
  info[:using_local]  = Legion::Cache.using_local? if Legion::Cache.respond_to?(:using_local?)
  info[:using_memory] = Legion::Cache.instance_variable_get(:@using_memory) == true
  info[:driver] = begin
    Legion::Settings[:cache][:driver]
  rescue StandardError
    nil
  end

  if Legion::Cache.connected? && Legion::Cache.respond_to?(:size)
    info[:pool_size] = begin
      Legion::Cache.size
    rescue StandardError
      nil
    end
    info[:pool_available] = begin
      Legion::Cache.available
    rescue StandardError
      nil
    end
  end
  info
rescue StandardError => e
  { error: e.message }
end

.collect_cache_local ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 112

def collect_cache_local
  return { connected: false } unless defined?(Legion::Cache::Local)

  info = { connected: Legion::Cache::Local.connected? }
  if Legion::Cache::Local.connected?
    info[:pool_size] = begin
      Legion::Cache::Local.size
    rescue StandardError
      nil
    end
    info[:pool_available] = begin
      Legion::Cache::Local.available
    rescue StandardError
      nil
    end
  end
  info
rescue StandardError => e
  { error: e.message }
end

.collect_data ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 165

def collect_data
  return { connected: false } unless defined?(Legion::Data) && Legion::Settings[:data][:connected]

  if Legion::Data.respond_to?(:stats)
    stats = Legion::Data.stats
    stats[:shared] || stats
  else
    { connected: true, adapter: begin
      Legion::Data::Connection.adapter
    rescue StandardError
      nil
    end }
  end
rescue StandardError => e
  { error: e.message }
end

.collect_data_local ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 182

def collect_data_local
  return { connected: false } unless defined?(Legion::Data::Local) && Legion::Data::Local.connected?

  if Legion::Data::Local.respond_to?(:stats)
    Legion::Data::Local.stats
  else
    { connected: true }
  end
rescue StandardError => e
  { error: e.message }
end

.collect_extensions ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 36

def collect_extensions
  ext = Legion::Extensions
  {
    loaded:  ext.extension_handle_registry.loaded.count,
    running: ext.extension_handle_registry.running.count
  }.merge(EXTENSION_TASK_IVARS.transform_values { |ivar| ext.instance_variable_get(ivar)&.count || 0 })
rescue StandardError => e
  { error: e.message }
end

.collect_gaia ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 46

def collect_gaia
  return { started: false } unless defined?(Legion::Gaia) && Legion::Gaia.respond_to?(:started?) && Legion::Gaia.started?

  Legion::Gaia.status
rescue StandardError => e
  { error: e.message }
end

.collect_llm ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 133

def collect_llm
  return { started: false } unless defined?(Legion::LLM) && Legion::LLM.started?

  info = { started: true }
  s = Legion::LLM.settings
  info[:default_model]    = s[:default_model]
  info[:default_provider] = s[:default_provider]
  info[:pipeline_enabled] = s[:pipeline_enabled] == true

  if defined?(Legion::LLM::Router) # legit optional-gem guard (standards ยง6): legion-llm may be absent
    info[:routing_enabled] = true
    info[:provider_health] = Legion::LLM::Inventory.lanes.each_with_object({}) do |lane, h|
      key = "#{lane[:provider_family]}/#{lane[:instance_id]}"
      h[key] = { circuit: lane.dig(:health, :circuit_state)&.to_s }
    rescue StandardError => e
      handle_exception(e, level: :warn, operation: 'api.stats.provider_health', lane: lane[:id])
      next # skip the malformed lane, but the failure is logged + published, not swallowed
    end
  else
    info[:routing_enabled] = false
  end

  if defined?(Legion::LLM::ConversationStore)
    store = Legion::LLM::ConversationStore
    info[:conversations] = store.respond_to?(:size) ? store.size : nil
  end
  info
rescue StandardError => e
  handle_exception(e, level: :warn, operation: 'api.stats.collect_llm')
  { error: e.message }
end

.collect_transport ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 54

def collect_transport
  conn = Legion::Transport::Connection
  connected = begin
    Legion::Settings[:transport][:connected]
  rescue StandardError
    false
  end
  connector = defined?(Legion::Transport::TYPE) ? Legion::Transport::TYPE.to_s : 'unknown'

  info = { connected: connected, connector: connector }

  session = conn.session
  if session.respond_to?(:open?) && session.open?
    info[:session_open] = true
    info[:channel_max] = session.channel_max if session.respond_to?(:channel_max)
    # Bunny tracks open channels in @channels hash
    channels = session.instance_variable_get(:@channels)
    info[:channels_open] = channels.is_a?(Hash) ? channels.count : nil
  else
    info[:session_open] = false
  end

  info[:build_session_open] = conn.build_session_open?
  info[:lite_mode] = conn.lite_mode?
  info
rescue StandardError => e
  { error: e.message }
end

.registered(app) ⇒ Object 



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# File 'lib/legion/api/stats.rb', line 9

def self.registered(app)
  app.get '/api/stats' do
    result = {}
    result[:extensions]  = Routes::Stats.collect_extensions
    result[:gaia]        = Routes::Stats.collect_gaia
    result[:transport]   = Routes::Stats.collect_transport
    result[:cache]       = Routes::Stats.collect_cache
    result[:cache_local] = Routes::Stats.collect_cache_local
    result[:llm]         = Routes::Stats.collect_llm
    result[:data]        = Routes::Stats.collect_data
    result[:data_local]  = Routes::Stats.collect_data_local
    result[:api]         = Routes::Stats.collect_api
    json_response(result)
  end
end