Module: Restool::Settings::Loader

Includes:
Models
Defined in:
lib/restool/settings/loader.rb

Constant Summary collapse

DEFAULT_TIMEOUT = 
60
DEFAULT_SSL_VERIFY = 
false

Constants included from Models

Models::OperationResponsField

Class Method Summary collapse

Class Method Details

.build_operation(operation_config, paths_prefix_in_host) ⇒ Object 



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# File 'lib/restool/settings/loader.rb', line 77

def self.build_operation(operation_config, paths_prefix_in_host)
  response = build_operation_response(operation_config['response']) if operation_config['response']

  path = operation_config['path']
  path = path[1..-1] if path[0] == '/'
  paths_prefix_in_host.chomp!('/')

  Operation.new(
    operation_config['name'],
    "#{paths_prefix_in_host}/#{path}",
    operation_config['method'],
    uri_params(operation_config),
    response
  )
end

.build_operation_response(response) ⇒ Object 



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# File 'lib/restool/settings/loader.rb', line 93

def self.build_operation_response(response)
  response_fields = response.map do |field|
                      OperationResponsField.new(field['key'], field['metonym'], field['type'].to_sym)
                    end

  OperationResponse.new(response_fields)
end

.build_representations(representations) ⇒ Object 



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# File 'lib/restool/settings/loader.rb', line 60

def self.build_representations(representations)
  representations_by_name = {}

  representations.each do |representation|
    fields = representation[1].map do |field|
      RepresentationField.new(field['key'],
                        field['metonym'],
                        field['type'].to_sym)
    end

    representation = Representation.new(name = representation.first, fields)
    representations_by_name[representation.name.to_sym] = representation
  end

  representations_by_name
end

.build_service(service_config) ⇒ Object 



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# File 'lib/restool/settings/loader.rb', line 26

def self.build_service(service_config)
  representations = if service_config['representations']
                      build_representations(service_config['representations'])
                    else
                      []
                    end

  basic_auth = service_config['basic_auth'] || service_config['basic_authentication']
  basic_auth = BasicAuthentication.new(basic_auth['user'], basic_auth['password']) if basic_auth

  persistent_connection = service_config['persistent']
  persistent_connection = if persistent_connection
                            PersistentConnection.new(
                              persistent_connection['pool_size'],
                              persistent_connection['warn_timeout'],
                              persistent_connection['force_retry'],
                            )
                          end

  # Support host + common path in url config, e.g. api.com/v2/
  paths_prefix_in_host = URI(service_config['url']).path

  Models::Service.new(
    service_config['name'],
    service_config['url'],
    service_config['operations'].map { |operation| build_operation(operation, paths_prefix_in_host) },
    persistent_connection,
    service_config['timeout'] || DEFAULT_TIMEOUT,
    representations,
    basic_auth,
    service_config['ssl_verify'] || DEFAULT_SSL_VERIFY
  )
end

.config ⇒ Object 



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# File 'lib/restool/settings/loader.rb', line 105

def self.config
  return @config if @config

  files_to_load = Dir['config/restool/*'] + ['config/restool.yml', 'config/restool.json']

  @config = { 'services' => [] }

  files_to_load.each do |file_name|
    next unless File.exist?(file_name)

    extension = File.extname(file_name)

    content = if extension == '.yml'
      YAML.load_file(file_name)
    elsif extension == '.json'
      json_file = File.read(file_name)
      JSON.parse(json_file)
    end

    @config['services'] += content['services']
  end

  @config
end

.load(service_name) ⇒ Object 



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# File 'lib/restool/settings/loader.rb', line 14

def self.load(service_name)
  service_config = config['services'].detect do |service|
    service['name'] == service_name
  end

  raise "Service #{service_name} not found in configuration" unless service_config

  build_service(service_config)
end

.uri_params(operation_config) ⇒ Object 



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# File 'lib/restool/settings/loader.rb', line 101

def self.uri_params(operation_config)
  operation_config['path'].scan(/:[a-zA-Z_]+[0-9]*[a-zA-Z_]*/)
end

.validate ⇒ Object 



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# File 'lib/restool/settings/loader.rb', line 130

def self.validate
  # TODO: perform validations
end