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Class: Kward::Transport::Manager

Inherits:
Object
  • Object
show all
Defined in:
lib/kward/transport/manager.rb

Overview

Starts and supervises registered transport adapters.

Defined Under Namespace

Classes: Entry

Instance Method Summary collapse

Constructor Details

#initialize(registry:, gateway: nil, plugin_chat_gateway: nil, config_root: nil, config_provider: nil, policy: nil, logger: nil) ⇒ Manager

Returns a new instance of Manager.



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# File 'lib/kward/transport/manager.rb', line 11

def initialize(registry:, gateway: nil, plugin_chat_gateway: nil, config_root: nil, config_provider: nil, policy: nil, logger: nil)
  @registry = registry
  @gateway = gateway
  @plugin_chat_gateway = plugin_chat_gateway
  @config_root = config_root
  @config_provider = config_provider
  @policy = policy
  @logger = logger || Logger.new($stderr)
  @entries = {}
  @mutex = Mutex.new
end

Instance Method Details

#list ⇒ Object 



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# File 'lib/kward/transport/manager.rb', line 23

def list
  @registry.transports.map { |type| descriptor(type) }
end

#reload(registry) ⇒ Object 



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# File 'lib/kward/transport/manager.rb', line 101

def reload(registry)
  shutdown
  @mutex.synchronize { @registry = registry }
  list
end

#restart(name_or_id, config: nil) ⇒ Object 



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# File 'lib/kward/transport/manager.rb', line 96

def restart(name_or_id, config: nil)
  stop(name_or_id)
  start(name_or_id, config: config)
end

#shutdown ⇒ Object 



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# File 'lib/kward/transport/manager.rb', line 107

def shutdown
  entries = @mutex.synchronize { @entries.values.dup }
  entries.each { |entry| stop(entry.type.id) if entry.state == "running" || entry.state == "starting" }
  nil
end

#start(name_or_id, config: nil, workspace_root: nil) ⇒ Object 



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# File 'lib/kward/transport/manager.rb', line 33

def start(name_or_id, config: nil, workspace_root: nil)
  type = resolve_type(name_or_id)
  @mutex.synchronize do
    raise "Transport #{type.id} is already running" if running_entry?(type.id)
  end

  config ||= @config_provider&.call(type.id) || {}
  config = config.merge("workspace" => workspace_root.to_s) if workspace_root
  gateway = @gateway.respond_to?(:call) ? @gateway.call(type.id) : @gateway
  plugin_chat_gateway = @plugin_chat_gateway.respond_to?(:call) ? @plugin_chat_gateway.call(type.id) : @plugin_chat_gateway
  host = Host.new(
    transport_id: type.id,
    gateway: gateway,
    plugin_chat_gateway: plugin_chat_gateway,
    config: config,
    storage: @config_root && Store.new(type.id, root: @config_root),
    policy: @policy,
    logger: @logger,
    execution_profile: type.execution_profile
  )
  adapter = type.handler.call(host, host.config)
  unless adapter.respond_to?(:start) && adapter.respond_to?(:stop)
    raise "Transport #{type.id} must implement start and stop"
  end

  entry = Entry.new(type: type, host: host, adapter: adapter, state: "starting")
  @mutex.synchronize { @entries[type.id] = entry }
  begin
    adapter.start
    @mutex.synchronize do
      entry.state = "running"
      entry.started_at = Time.now.utc
      entry.error = nil
    end
    adapter
  rescue StandardError => e
    @mutex.synchronize do
      entry.state = "failed"
      entry.error = e.message
      entry.stopped_at = Time.now.utc
    end
    log_error(type, e)
    raise
  end
end

#status(name_or_id = nil) ⇒ Object 



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# File 'lib/kward/transport/manager.rb', line 27

def status(name_or_id = nil)
  return status_for(resolve_type(name_or_id)) if name_or_id

  list.map { |type| status_for(type) }
end

#stop(name_or_id) ⇒ Object 



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# File 'lib/kward/transport/manager.rb', line 79

def stop(name_or_id)
  type = resolve_type(name_or_id)
  entry = @mutex.synchronize { @entries[type.id] }
  return false unless entry

  begin
    entry.adapter.stop
  ensure
    entry.host.shutdown
    @mutex.synchronize do
      entry.state = "stopped"
      entry.stopped_at = Time.now.utc
    end
  end
  true
end