Class: Ably::Models::PresenceMessage

Inherits:
Object
  • Object
show all
Extended by:
Ably::Modules::Enum
Includes:
Ably::Modules::Conversions, Ably::Modules::Encodeable, Ably::Modules::ModelCommon, Ably::Modules::SafeDeferrable
Defined in:
lib/ably/models/presence_message.rb

Overview

A class representing an individual presence message to be sent or received via the Ably Realtime service.

Constant Summary collapse

ACTION = 
ruby_enum('ACTION',
  :absent,
  :present,
  :enter,
  :leave,
  :update
)

Instance Attribute Summary collapse

Attributes included from Ably::Modules::ModelCommon

#hash

Instance Method Summary collapse

Methods included from Ably::Modules::SafeDeferrable

#callback, #errback, #fail, #succeed

Methods included from Ably::Modules::ModelCommon

#==, #[]

Methods included from Ably::Modules::MessagePack

#to_msgpack

Methods included from Ably::Modules::Encodeable

#decode, #encode, #original_encoding

Constructor Details

#initialize(attributes, options = {}) ⇒ PresenceMessage

Ably::Models::PresenceMessage initializer

Parameters:

  • attributes (Hash) —

    object with the underlying presence message key value attributes

  • options (Hash) (defaults to: {}) —

    an options Hash for this initializer

Options Hash (options):



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# File 'lib/ably/models/presence_message.rb', line 62

def initialize(attributes, options = {})
  @logger           = options[:logger] # Logger expected for SafeDeferrable
  @protocol_message = options[:protocol_message]
  @raw_hash_object  = attributes

  set_attributes_object attributes

  ensure_utf_8 :client_id,     client_id,     allow_nil: true
  ensure_utf_8 :connection_id, connection_id, allow_nil: true
  ensure_utf_8 :encoding,      encoding,      allow_nil: true
end

Instance Attribute Details

#action ⇒ ACTION (readonly)

Returns the state change event signified by a PresenceMessage.

Returns:

  • (ACTION) —

    the state change event signified by a PresenceMessage



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# File 'lib/ably/models/presence_message.rb', line 40

class PresenceMessage
  include Ably::Modules::Conversions
  include Ably::Modules::Encodeable
  include Ably::Modules::ModelCommon
  include Ably::Modules::SafeDeferrable if defined?(Ably::Realtime)
  extend Ably::Modules::Enum

  ACTION = ruby_enum('ACTION',
    :absent,
    :present,
    :enter,
    :leave,
    :update
  )

  # {PresenceMessage} initializer
  #
  # @param  attributes  [Hash]            object with the underlying presence message key value attributes
  # @param  [Hash]      options           an options Hash for this initializer
  # @option options     [ProtocolMessage] :protocol_message  An optional protocol message to assocate the presence message with
  # @option options     [Logger]          :logger            An optional Logger to be used by {Ably::Modules::SafeDeferrable} if an exception is caught in a callback
  #
  def initialize(attributes, options = {})
    @logger           = options[:logger] # Logger expected for SafeDeferrable
    @protocol_message = options[:protocol_message]
    @raw_hash_object  = attributes

    set_attributes_object attributes

    ensure_utf_8 :client_id,     client_id,     allow_nil: true
    ensure_utf_8 :connection_id, connection_id, allow_nil: true
    ensure_utf_8 :encoding,      encoding,      allow_nil: true
  end

  %w( client_id data encoding ).each do |attribute|
    define_method attribute do
      attributes[attribute.to_sym]
    end
  end

  def id
    attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
  end

  def connection_id
    attributes.fetch(:connection_id) { protocol_message.connection_id if assigned_to_protocol_message? }
  end

  def member_key
    "#{connection_id}:#{client_id}"
  end

  def timestamp
    if attributes[:timestamp]
      as_time_from_epoch(attributes[:timestamp])
    else
      protocol_message.timestamp
    end
  end

  def action
    ACTION(attributes[:action])
  end

  def attributes
    @attributes
  end

  # Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys
  def as_json(*args)
    attributes.dup.tap do |presence_message|
      presence_message['action'] = action.to_i
    end.as_json.reject { |key, val| val.nil? }
  rescue KeyError
    raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
  end

  def to_json(*args)
    as_json(*args).tap do |presence_message|
      decode_binary_data_before_to_json presence_message
    end.to_json
  end


  # Assign this presence message to a ProtocolMessage before delivery to the Ably system
  # @api private
  def assign_to_protocol_message(protocol_message)
    @protocol_message = protocol_message
  end

  # True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably
  # @return [Boolean]
  # @api private
  def assigned_to_protocol_message?
    !!@protocol_message
  end

  # The optional ProtocolMessage this presence message is assigned to.  If ProtocolMessage is nil, an error will be raised.
  # @return [Ably::Models::ProtocolMessage]
  # @api private
  def protocol_message
    raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
    @protocol_message
  end

  private
  def raw_hash_object
    @raw_hash_object
  end

  def protocol_message_index
    protocol_message.presence.index(self)
  end

  def set_attributes_object(new_attributes)
    @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
  end

  def logger
    return @logger if @logger
    protocol_message.logger if protocol_message
  end
end

#attributes ⇒ Hash (readonly)

Returns Access the protocol message Hash object ruby’fied to use symbolized keys.

Returns:

  • (Hash) —

    Access the protocol message Hash object ruby’fied to use symbolized keys



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# File 'lib/ably/models/presence_message.rb', line 40

class PresenceMessage
  include Ably::Modules::Conversions
  include Ably::Modules::Encodeable
  include Ably::Modules::ModelCommon
  include Ably::Modules::SafeDeferrable if defined?(Ably::Realtime)
  extend Ably::Modules::Enum

  ACTION = ruby_enum('ACTION',
    :absent,
    :present,
    :enter,
    :leave,
    :update
  )

  # {PresenceMessage} initializer
  #
  # @param  attributes  [Hash]            object with the underlying presence message key value attributes
  # @param  [Hash]      options           an options Hash for this initializer
  # @option options     [ProtocolMessage] :protocol_message  An optional protocol message to assocate the presence message with
  # @option options     [Logger]          :logger            An optional Logger to be used by {Ably::Modules::SafeDeferrable} if an exception is caught in a callback
  #
  def initialize(attributes, options = {})
    @logger           = options[:logger] # Logger expected for SafeDeferrable
    @protocol_message = options[:protocol_message]
    @raw_hash_object  = attributes

    set_attributes_object attributes

    ensure_utf_8 :client_id,     client_id,     allow_nil: true
    ensure_utf_8 :connection_id, connection_id, allow_nil: true
    ensure_utf_8 :encoding,      encoding,      allow_nil: true
  end

  %w( client_id data encoding ).each do |attribute|
    define_method attribute do
      attributes[attribute.to_sym]
    end
  end

  def id
    attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
  end

  def connection_id
    attributes.fetch(:connection_id) { protocol_message.connection_id if assigned_to_protocol_message? }
  end

  def member_key
    "#{connection_id}:#{client_id}"
  end

  def timestamp
    if attributes[:timestamp]
      as_time_from_epoch(attributes[:timestamp])
    else
      protocol_message.timestamp
    end
  end

  def action
    ACTION(attributes[:action])
  end

  def attributes
    @attributes
  end

  # Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys
  def as_json(*args)
    attributes.dup.tap do |presence_message|
      presence_message['action'] = action.to_i
    end.as_json.reject { |key, val| val.nil? }
  rescue KeyError
    raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
  end

  def to_json(*args)
    as_json(*args).tap do |presence_message|
      decode_binary_data_before_to_json presence_message
    end.to_json
  end


  # Assign this presence message to a ProtocolMessage before delivery to the Ably system
  # @api private
  def assign_to_protocol_message(protocol_message)
    @protocol_message = protocol_message
  end

  # True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably
  # @return [Boolean]
  # @api private
  def assigned_to_protocol_message?
    !!@protocol_message
  end

  # The optional ProtocolMessage this presence message is assigned to.  If ProtocolMessage is nil, an error will be raised.
  # @return [Ably::Models::ProtocolMessage]
  # @api private
  def protocol_message
    raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
    @protocol_message
  end

  private
  def raw_hash_object
    @raw_hash_object
  end

  def protocol_message_index
    protocol_message.presence.index(self)
  end

  def set_attributes_object(new_attributes)
    @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
  end

  def logger
    return @logger if @logger
    protocol_message.logger if protocol_message
  end
end

#client_id ⇒ String (readonly)

Returns The client_id associated with this presence state.

Returns:

  • (String) —

    The client_id associated with this presence state



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# File 'lib/ably/models/presence_message.rb', line 40

class PresenceMessage
  include Ably::Modules::Conversions
  include Ably::Modules::Encodeable
  include Ably::Modules::ModelCommon
  include Ably::Modules::SafeDeferrable if defined?(Ably::Realtime)
  extend Ably::Modules::Enum

  ACTION = ruby_enum('ACTION',
    :absent,
    :present,
    :enter,
    :leave,
    :update
  )

  # {PresenceMessage} initializer
  #
  # @param  attributes  [Hash]            object with the underlying presence message key value attributes
  # @param  [Hash]      options           an options Hash for this initializer
  # @option options     [ProtocolMessage] :protocol_message  An optional protocol message to assocate the presence message with
  # @option options     [Logger]          :logger            An optional Logger to be used by {Ably::Modules::SafeDeferrable} if an exception is caught in a callback
  #
  def initialize(attributes, options = {})
    @logger           = options[:logger] # Logger expected for SafeDeferrable
    @protocol_message = options[:protocol_message]
    @raw_hash_object  = attributes

    set_attributes_object attributes

    ensure_utf_8 :client_id,     client_id,     allow_nil: true
    ensure_utf_8 :connection_id, connection_id, allow_nil: true
    ensure_utf_8 :encoding,      encoding,      allow_nil: true
  end

  %w( client_id data encoding ).each do |attribute|
    define_method attribute do
      attributes[attribute.to_sym]
    end
  end

  def id
    attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
  end

  def connection_id
    attributes.fetch(:connection_id) { protocol_message.connection_id if assigned_to_protocol_message? }
  end

  def member_key
    "#{connection_id}:#{client_id}"
  end

  def timestamp
    if attributes[:timestamp]
      as_time_from_epoch(attributes[:timestamp])
    else
      protocol_message.timestamp
    end
  end

  def action
    ACTION(attributes[:action])
  end

  def attributes
    @attributes
  end

  # Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys
  def as_json(*args)
    attributes.dup.tap do |presence_message|
      presence_message['action'] = action.to_i
    end.as_json.reject { |key, val| val.nil? }
  rescue KeyError
    raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
  end

  def to_json(*args)
    as_json(*args).tap do |presence_message|
      decode_binary_data_before_to_json presence_message
    end.to_json
  end


  # Assign this presence message to a ProtocolMessage before delivery to the Ably system
  # @api private
  def assign_to_protocol_message(protocol_message)
    @protocol_message = protocol_message
  end

  # True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably
  # @return [Boolean]
  # @api private
  def assigned_to_protocol_message?
    !!@protocol_message
  end

  # The optional ProtocolMessage this presence message is assigned to.  If ProtocolMessage is nil, an error will be raised.
  # @return [Ably::Models::ProtocolMessage]
  # @api private
  def protocol_message
    raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
    @protocol_message
  end

  private
  def raw_hash_object
    @raw_hash_object
  end

  def protocol_message_index
    protocol_message.presence.index(self)
  end

  def set_attributes_object(new_attributes)
    @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
  end

  def logger
    return @logger if @logger
    protocol_message.logger if protocol_message
  end
end

#connection_id ⇒ String (readonly)

Returns A unique member identifier, disambiguating situations where a given client_id is present on multiple connections simultaneously.

Returns:

  • (String) —

    A unique member identifier, disambiguating situations where a given client_id is present on multiple connections simultaneously



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# File 'lib/ably/models/presence_message.rb', line 40

class PresenceMessage
  include Ably::Modules::Conversions
  include Ably::Modules::Encodeable
  include Ably::Modules::ModelCommon
  include Ably::Modules::SafeDeferrable if defined?(Ably::Realtime)
  extend Ably::Modules::Enum

  ACTION = ruby_enum('ACTION',
    :absent,
    :present,
    :enter,
    :leave,
    :update
  )

  # {PresenceMessage} initializer
  #
  # @param  attributes  [Hash]            object with the underlying presence message key value attributes
  # @param  [Hash]      options           an options Hash for this initializer
  # @option options     [ProtocolMessage] :protocol_message  An optional protocol message to assocate the presence message with
  # @option options     [Logger]          :logger            An optional Logger to be used by {Ably::Modules::SafeDeferrable} if an exception is caught in a callback
  #
  def initialize(attributes, options = {})
    @logger           = options[:logger] # Logger expected for SafeDeferrable
    @protocol_message = options[:protocol_message]
    @raw_hash_object  = attributes

    set_attributes_object attributes

    ensure_utf_8 :client_id,     client_id,     allow_nil: true
    ensure_utf_8 :connection_id, connection_id, allow_nil: true
    ensure_utf_8 :encoding,      encoding,      allow_nil: true
  end

  %w( client_id data encoding ).each do |attribute|
    define_method attribute do
      attributes[attribute.to_sym]
    end
  end

  def id
    attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
  end

  def connection_id
    attributes.fetch(:connection_id) { protocol_message.connection_id if assigned_to_protocol_message? }
  end

  def member_key
    "#{connection_id}:#{client_id}"
  end

  def timestamp
    if attributes[:timestamp]
      as_time_from_epoch(attributes[:timestamp])
    else
      protocol_message.timestamp
    end
  end

  def action
    ACTION(attributes[:action])
  end

  def attributes
    @attributes
  end

  # Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys
  def as_json(*args)
    attributes.dup.tap do |presence_message|
      presence_message['action'] = action.to_i
    end.as_json.reject { |key, val| val.nil? }
  rescue KeyError
    raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
  end

  def to_json(*args)
    as_json(*args).tap do |presence_message|
      decode_binary_data_before_to_json presence_message
    end.to_json
  end


  # Assign this presence message to a ProtocolMessage before delivery to the Ably system
  # @api private
  def assign_to_protocol_message(protocol_message)
    @protocol_message = protocol_message
  end

  # True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably
  # @return [Boolean]
  # @api private
  def assigned_to_protocol_message?
    !!@protocol_message
  end

  # The optional ProtocolMessage this presence message is assigned to.  If ProtocolMessage is nil, an error will be raised.
  # @return [Ably::Models::ProtocolMessage]
  # @api private
  def protocol_message
    raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
    @protocol_message
  end

  private
  def raw_hash_object
    @raw_hash_object
  end

  def protocol_message_index
    protocol_message.presence.index(self)
  end

  def set_attributes_object(new_attributes)
    @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
  end

  def logger
    return @logger if @logger
    protocol_message.logger if protocol_message
  end
end

#data ⇒ Object (readonly)

Returns Optional client-defined status or other event payload associated with this state.

Returns:

  • (Object) —

    Optional client-defined status or other event payload associated with this state



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# File 'lib/ably/models/presence_message.rb', line 40

class PresenceMessage
  include Ably::Modules::Conversions
  include Ably::Modules::Encodeable
  include Ably::Modules::ModelCommon
  include Ably::Modules::SafeDeferrable if defined?(Ably::Realtime)
  extend Ably::Modules::Enum

  ACTION = ruby_enum('ACTION',
    :absent,
    :present,
    :enter,
    :leave,
    :update
  )

  # {PresenceMessage} initializer
  #
  # @param  attributes  [Hash]            object with the underlying presence message key value attributes
  # @param  [Hash]      options           an options Hash for this initializer
  # @option options     [ProtocolMessage] :protocol_message  An optional protocol message to assocate the presence message with
  # @option options     [Logger]          :logger            An optional Logger to be used by {Ably::Modules::SafeDeferrable} if an exception is caught in a callback
  #
  def initialize(attributes, options = {})
    @logger           = options[:logger] # Logger expected for SafeDeferrable
    @protocol_message = options[:protocol_message]
    @raw_hash_object  = attributes

    set_attributes_object attributes

    ensure_utf_8 :client_id,     client_id,     allow_nil: true
    ensure_utf_8 :connection_id, connection_id, allow_nil: true
    ensure_utf_8 :encoding,      encoding,      allow_nil: true
  end

  %w( client_id data encoding ).each do |attribute|
    define_method attribute do
      attributes[attribute.to_sym]
    end
  end

  def id
    attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
  end

  def connection_id
    attributes.fetch(:connection_id) { protocol_message.connection_id if assigned_to_protocol_message? }
  end

  def member_key
    "#{connection_id}:#{client_id}"
  end

  def timestamp
    if attributes[:timestamp]
      as_time_from_epoch(attributes[:timestamp])
    else
      protocol_message.timestamp
    end
  end

  def action
    ACTION(attributes[:action])
  end

  def attributes
    @attributes
  end

  # Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys
  def as_json(*args)
    attributes.dup.tap do |presence_message|
      presence_message['action'] = action.to_i
    end.as_json.reject { |key, val| val.nil? }
  rescue KeyError
    raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
  end

  def to_json(*args)
    as_json(*args).tap do |presence_message|
      decode_binary_data_before_to_json presence_message
    end.to_json
  end


  # Assign this presence message to a ProtocolMessage before delivery to the Ably system
  # @api private
  def assign_to_protocol_message(protocol_message)
    @protocol_message = protocol_message
  end

  # True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably
  # @return [Boolean]
  # @api private
  def assigned_to_protocol_message?
    !!@protocol_message
  end

  # The optional ProtocolMessage this presence message is assigned to.  If ProtocolMessage is nil, an error will be raised.
  # @return [Ably::Models::ProtocolMessage]
  # @api private
  def protocol_message
    raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
    @protocol_message
  end

  private
  def raw_hash_object
    @raw_hash_object
  end

  def protocol_message_index
    protocol_message.presence.index(self)
  end

  def set_attributes_object(new_attributes)
    @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
  end

  def logger
    return @logger if @logger
    protocol_message.logger if protocol_message
  end
end

#encoding ⇒ String (readonly)

Returns The encoding for the message data. Encoding and decoding of messages is handled automatically by the client library. Therefore, the ‘encoding` attribute should always be nil unless an Ably library decoding error has occurred.

Returns:

  • (String) —

    The encoding for the message data. Encoding and decoding of messages is handled automatically by the client library. Therefore, the ‘encoding` attribute should always be nil unless an Ably library decoding error has occurred.



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# File 'lib/ably/models/presence_message.rb', line 40

class PresenceMessage
  include Ably::Modules::Conversions
  include Ably::Modules::Encodeable
  include Ably::Modules::ModelCommon
  include Ably::Modules::SafeDeferrable if defined?(Ably::Realtime)
  extend Ably::Modules::Enum

  ACTION = ruby_enum('ACTION',
    :absent,
    :present,
    :enter,
    :leave,
    :update
  )

  # {PresenceMessage} initializer
  #
  # @param  attributes  [Hash]            object with the underlying presence message key value attributes
  # @param  [Hash]      options           an options Hash for this initializer
  # @option options     [ProtocolMessage] :protocol_message  An optional protocol message to assocate the presence message with
  # @option options     [Logger]          :logger            An optional Logger to be used by {Ably::Modules::SafeDeferrable} if an exception is caught in a callback
  #
  def initialize(attributes, options = {})
    @logger           = options[:logger] # Logger expected for SafeDeferrable
    @protocol_message = options[:protocol_message]
    @raw_hash_object  = attributes

    set_attributes_object attributes

    ensure_utf_8 :client_id,     client_id,     allow_nil: true
    ensure_utf_8 :connection_id, connection_id, allow_nil: true
    ensure_utf_8 :encoding,      encoding,      allow_nil: true
  end

  %w( client_id data encoding ).each do |attribute|
    define_method attribute do
      attributes[attribute.to_sym]
    end
  end

  def id
    attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
  end

  def connection_id
    attributes.fetch(:connection_id) { protocol_message.connection_id if assigned_to_protocol_message? }
  end

  def member_key
    "#{connection_id}:#{client_id}"
  end

  def timestamp
    if attributes[:timestamp]
      as_time_from_epoch(attributes[:timestamp])
    else
      protocol_message.timestamp
    end
  end

  def action
    ACTION(attributes[:action])
  end

  def attributes
    @attributes
  end

  # Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys
  def as_json(*args)
    attributes.dup.tap do |presence_message|
      presence_message['action'] = action.to_i
    end.as_json.reject { |key, val| val.nil? }
  rescue KeyError
    raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
  end

  def to_json(*args)
    as_json(*args).tap do |presence_message|
      decode_binary_data_before_to_json presence_message
    end.to_json
  end


  # Assign this presence message to a ProtocolMessage before delivery to the Ably system
  # @api private
  def assign_to_protocol_message(protocol_message)
    @protocol_message = protocol_message
  end

  # True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably
  # @return [Boolean]
  # @api private
  def assigned_to_protocol_message?
    !!@protocol_message
  end

  # The optional ProtocolMessage this presence message is assigned to.  If ProtocolMessage is nil, an error will be raised.
  # @return [Ably::Models::ProtocolMessage]
  # @api private
  def protocol_message
    raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
    @protocol_message
  end

  private
  def raw_hash_object
    @raw_hash_object
  end

  def protocol_message_index
    protocol_message.presence.index(self)
  end

  def set_attributes_object(new_attributes)
    @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
  end

  def logger
    return @logger if @logger
    protocol_message.logger if protocol_message
  end
end

#member_key ⇒ String (readonly)

Returns A unique connection and client_id identifier ensuring multiple connected clients with the same client_id are unique.

Returns:

  • (String) —

    A unique connection and client_id identifier ensuring multiple connected clients with the same client_id are unique



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# File 'lib/ably/models/presence_message.rb', line 40

class PresenceMessage
  include Ably::Modules::Conversions
  include Ably::Modules::Encodeable
  include Ably::Modules::ModelCommon
  include Ably::Modules::SafeDeferrable if defined?(Ably::Realtime)
  extend Ably::Modules::Enum

  ACTION = ruby_enum('ACTION',
    :absent,
    :present,
    :enter,
    :leave,
    :update
  )

  # {PresenceMessage} initializer
  #
  # @param  attributes  [Hash]            object with the underlying presence message key value attributes
  # @param  [Hash]      options           an options Hash for this initializer
  # @option options     [ProtocolMessage] :protocol_message  An optional protocol message to assocate the presence message with
  # @option options     [Logger]          :logger            An optional Logger to be used by {Ably::Modules::SafeDeferrable} if an exception is caught in a callback
  #
  def initialize(attributes, options = {})
    @logger           = options[:logger] # Logger expected for SafeDeferrable
    @protocol_message = options[:protocol_message]
    @raw_hash_object  = attributes

    set_attributes_object attributes

    ensure_utf_8 :client_id,     client_id,     allow_nil: true
    ensure_utf_8 :connection_id, connection_id, allow_nil: true
    ensure_utf_8 :encoding,      encoding,      allow_nil: true
  end

  %w( client_id data encoding ).each do |attribute|
    define_method attribute do
      attributes[attribute.to_sym]
    end
  end

  def id
    attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
  end

  def connection_id
    attributes.fetch(:connection_id) { protocol_message.connection_id if assigned_to_protocol_message? }
  end

  def member_key
    "#{connection_id}:#{client_id}"
  end

  def timestamp
    if attributes[:timestamp]
      as_time_from_epoch(attributes[:timestamp])
    else
      protocol_message.timestamp
    end
  end

  def action
    ACTION(attributes[:action])
  end

  def attributes
    @attributes
  end

  # Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys
  def as_json(*args)
    attributes.dup.tap do |presence_message|
      presence_message['action'] = action.to_i
    end.as_json.reject { |key, val| val.nil? }
  rescue KeyError
    raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
  end

  def to_json(*args)
    as_json(*args).tap do |presence_message|
      decode_binary_data_before_to_json presence_message
    end.to_json
  end


  # Assign this presence message to a ProtocolMessage before delivery to the Ably system
  # @api private
  def assign_to_protocol_message(protocol_message)
    @protocol_message = protocol_message
  end

  # True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably
  # @return [Boolean]
  # @api private
  def assigned_to_protocol_message?
    !!@protocol_message
  end

  # The optional ProtocolMessage this presence message is assigned to.  If ProtocolMessage is nil, an error will be raised.
  # @return [Ably::Models::ProtocolMessage]
  # @api private
  def protocol_message
    raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
    @protocol_message
  end

  private
  def raw_hash_object
    @raw_hash_object
  end

  def protocol_message_index
    protocol_message.presence.index(self)
  end

  def set_attributes_object(new_attributes)
    @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
  end

  def logger
    return @logger if @logger
    protocol_message.logger if protocol_message
  end
end

#timestamp ⇒ Time (readonly)

Returns Timestamp when the message was received by the Ably the realtime service.

Returns:

  • (Time) —

    Timestamp when the message was received by the Ably the realtime service



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# File 'lib/ably/models/presence_message.rb', line 40

class PresenceMessage
  include Ably::Modules::Conversions
  include Ably::Modules::Encodeable
  include Ably::Modules::ModelCommon
  include Ably::Modules::SafeDeferrable if defined?(Ably::Realtime)
  extend Ably::Modules::Enum

  ACTION = ruby_enum('ACTION',
    :absent,
    :present,
    :enter,
    :leave,
    :update
  )

  # {PresenceMessage} initializer
  #
  # @param  attributes  [Hash]            object with the underlying presence message key value attributes
  # @param  [Hash]      options           an options Hash for this initializer
  # @option options     [ProtocolMessage] :protocol_message  An optional protocol message to assocate the presence message with
  # @option options     [Logger]          :logger            An optional Logger to be used by {Ably::Modules::SafeDeferrable} if an exception is caught in a callback
  #
  def initialize(attributes, options = {})
    @logger           = options[:logger] # Logger expected for SafeDeferrable
    @protocol_message = options[:protocol_message]
    @raw_hash_object  = attributes

    set_attributes_object attributes

    ensure_utf_8 :client_id,     client_id,     allow_nil: true
    ensure_utf_8 :connection_id, connection_id, allow_nil: true
    ensure_utf_8 :encoding,      encoding,      allow_nil: true
  end

  %w( client_id data encoding ).each do |attribute|
    define_method attribute do
      attributes[attribute.to_sym]
    end
  end

  def id
    attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
  end

  def connection_id
    attributes.fetch(:connection_id) { protocol_message.connection_id if assigned_to_protocol_message? }
  end

  def member_key
    "#{connection_id}:#{client_id}"
  end

  def timestamp
    if attributes[:timestamp]
      as_time_from_epoch(attributes[:timestamp])
    else
      protocol_message.timestamp
    end
  end

  def action
    ACTION(attributes[:action])
  end

  def attributes
    @attributes
  end

  # Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys
  def as_json(*args)
    attributes.dup.tap do |presence_message|
      presence_message['action'] = action.to_i
    end.as_json.reject { |key, val| val.nil? }
  rescue KeyError
    raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
  end

  def to_json(*args)
    as_json(*args).tap do |presence_message|
      decode_binary_data_before_to_json presence_message
    end.to_json
  end


  # Assign this presence message to a ProtocolMessage before delivery to the Ably system
  # @api private
  def assign_to_protocol_message(protocol_message)
    @protocol_message = protocol_message
  end

  # True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably
  # @return [Boolean]
  # @api private
  def assigned_to_protocol_message?
    !!@protocol_message
  end

  # The optional ProtocolMessage this presence message is assigned to.  If ProtocolMessage is nil, an error will be raised.
  # @return [Ably::Models::ProtocolMessage]
  # @api private
  def protocol_message
    raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
    @protocol_message
  end

  private
  def raw_hash_object
    @raw_hash_object
  end

  def protocol_message_index
    protocol_message.presence.index(self)
  end

  def set_attributes_object(new_attributes)
    @attributes = IdiomaticRubyWrapper(new_attributes.clone.freeze, stop_at: [:data])
  end

  def logger
    return @logger if @logger
    protocol_message.logger if protocol_message
  end
end

Instance Method Details

#as_json(*args) ⇒ Object

Return a JSON ready object from the underlying #attributes using Ably naming conventions for keys



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# File 'lib/ably/models/presence_message.rb', line 109

def as_json(*args)
  attributes.dup.tap do |presence_message|
    presence_message['action'] = action.to_i
  end.as_json.reject { |key, val| val.nil? }
rescue KeyError
  raise KeyError, ':action is missing or invalid, cannot generate a valid Hash for ProtocolMessage'
end

#assign_to_protocol_message(protocol_message) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Assign this presence message to a ProtocolMessage before delivery to the Ably system



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# File 'lib/ably/models/presence_message.rb', line 126

def assign_to_protocol_message(protocol_message)
  @protocol_message = protocol_message
end

#assigned_to_protocol_message? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

True if this presence message is assigned to a ProtocolMessage for delivery to Ably, or received from Ably

Returns:

  • (Boolean) 


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# File 'lib/ably/models/presence_message.rb', line 133

def assigned_to_protocol_message?
  !!@protocol_message
end

#id ⇒ Object 



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# File 'lib/ably/models/presence_message.rb', line 80

def id
  attributes.fetch(:id) { "#{protocol_message.id!}:#{protocol_message_index}" }
end

#protocol_message ⇒ Ably::Models::ProtocolMessage

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

The optional ProtocolMessage this presence message is assigned to. If ProtocolMessage is nil, an error will be raised.

Returns:

Raises:

  • (RuntimeError) 


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# File 'lib/ably/models/presence_message.rb', line 140

def protocol_message
  raise RuntimeError, 'Presence Message is not yet published with a ProtocolMessage. ProtocolMessage is nil' if @protocol_message.nil?
  @protocol_message
end

#to_json(*args) ⇒ Object 



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# File 'lib/ably/models/presence_message.rb', line 117

def to_json(*args)
  as_json(*args).tap do |presence_message|
    decode_binary_data_before_to_json presence_message
  end.to_json
end