Class: OandaAPI::Client::ResourceDescriptor

Inherits:
Object
  • Object
show all
Defined in:
lib/oanda_api/client/resource_descriptor.rb

Overview

Metadata about a resource request.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path, method) ⇒ ResourceDescriptor

Analyzes the resource request and determines the type of resource expected from the API.

Parameters:



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# File 'lib/oanda_api/client/resource_descriptor.rb', line 24

def initialize(path, method)
  @path = path
  path.match(/\/(?<resource_name>[a-z]*)\/?(?<resource_id>\w*?)$/) do |names|
    resource_name, resource_id = [Utils.singularize(names[:resource_name]), names[:resource_id]]
    self.resource_klass = resource_name
    @is_collection      = method == :get && resource_id.empty?
    @collection_name    = Utils.pluralize(resource_name).to_sym if is_collection?
  end
end

Instance Attribute Details

#collection_name ⇒ Symbol (readonly)

Returns method name that returns a collection of the resource from the API response.

Returns:

  • (Symbol) —

    method name that returns a collection of the resource from the API response.



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# File 'lib/oanda_api/client/resource_descriptor.rb', line 15

class ResourceDescriptor
  attr_reader :collection_name, :path, :resource_klass

  # Analyzes the resource request and determines the type of resource
  # expected from the API.
  #
  # @param [String] path a path to a resource.
  #
  # @param [Symbol] method an http verb (see {OandaAPI::Client.map_method_to_http_verb}).
  def initialize(path, method)
    @path = path
    path.match(/\/(?<resource_name>[a-z]*)\/?(?<resource_id>\w*?)$/) do |names|
      resource_name, resource_id = [Utils.singularize(names[:resource_name]), names[:resource_id]]
      self.resource_klass = resource_name
      @is_collection      = method == :get && resource_id.empty?
      @collection_name    = Utils.pluralize(resource_name).to_sym if is_collection?
    end
  end

  # True if the request returns a collection.
  # @return [Boolean]
  def is_collection?
    @is_collection
  end

  private

  # The resource type
  # @param [String] resource_name
  # @return [void]
  def resource_klass=(resource_name)
    klass_symbol = resource_name.capitalize.to_sym
    fail ArgumentError, "Invalid resource" unless OandaAPI::Resource.constants.include?(klass_symbol)
    @resource_klass = OandaAPI::Resource.const_get klass_symbol
  end
end

#path ⇒ String (readonly)

Returns path of the resource URI.

Returns:

  • (String) —

    path of the resource URI.



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# File 'lib/oanda_api/client/resource_descriptor.rb', line 15

class ResourceDescriptor
  attr_reader :collection_name, :path, :resource_klass

  # Analyzes the resource request and determines the type of resource
  # expected from the API.
  #
  # @param [String] path a path to a resource.
  #
  # @param [Symbol] method an http verb (see {OandaAPI::Client.map_method_to_http_verb}).
  def initialize(path, method)
    @path = path
    path.match(/\/(?<resource_name>[a-z]*)\/?(?<resource_id>\w*?)$/) do |names|
      resource_name, resource_id = [Utils.singularize(names[:resource_name]), names[:resource_id]]
      self.resource_klass = resource_name
      @is_collection      = method == :get && resource_id.empty?
      @collection_name    = Utils.pluralize(resource_name).to_sym if is_collection?
    end
  end

  # True if the request returns a collection.
  # @return [Boolean]
  def is_collection?
    @is_collection
  end

  private

  # The resource type
  # @param [String] resource_name
  # @return [void]
  def resource_klass=(resource_name)
    klass_symbol = resource_name.capitalize.to_sym
    fail ArgumentError, "Invalid resource" unless OandaAPI::Resource.constants.include?(klass_symbol)
    @resource_klass = OandaAPI::Resource.const_get klass_symbol
  end
end

#resource_klass ⇒ Symbol

Returns class of the resource.

Returns:

  • (Symbol) —

    class of the resource.



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# File 'lib/oanda_api/client/resource_descriptor.rb', line 15

class ResourceDescriptor
  attr_reader :collection_name, :path, :resource_klass

  # Analyzes the resource request and determines the type of resource
  # expected from the API.
  #
  # @param [String] path a path to a resource.
  #
  # @param [Symbol] method an http verb (see {OandaAPI::Client.map_method_to_http_verb}).
  def initialize(path, method)
    @path = path
    path.match(/\/(?<resource_name>[a-z]*)\/?(?<resource_id>\w*?)$/) do |names|
      resource_name, resource_id = [Utils.singularize(names[:resource_name]), names[:resource_id]]
      self.resource_klass = resource_name
      @is_collection      = method == :get && resource_id.empty?
      @collection_name    = Utils.pluralize(resource_name).to_sym if is_collection?
    end
  end

  # True if the request returns a collection.
  # @return [Boolean]
  def is_collection?
    @is_collection
  end

  private

  # The resource type
  # @param [String] resource_name
  # @return [void]
  def resource_klass=(resource_name)
    klass_symbol = resource_name.capitalize.to_sym
    fail ArgumentError, "Invalid resource" unless OandaAPI::Resource.constants.include?(klass_symbol)
    @resource_klass = OandaAPI::Resource.const_get klass_symbol
  end
end

Instance Method Details

#is_collection? ⇒ Boolean

True if the request returns a collection.

Returns:

  • (Boolean) 


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# File 'lib/oanda_api/client/resource_descriptor.rb', line 36

def is_collection?
  @is_collection
end