Class: Deepstream::Record

Inherits:
Object
  • Object
show all
Defined in:
lib/deepstream/record.rb

Direct Known Subclasses

List

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(client, name) ⇒ Record

Returns a new instance of Record.



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# File 'lib/deepstream/record.rb', line 9

def initialize(client, name)
  @client = client
  @name = name
  @data = {}
  @version = nil
  @is_reinitializing = false
  @data_cache = {}
  @client.send_message(TOPIC::RECORD, ACTION::CREATEORREAD, @name)
  @ready_callback = nil
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object

Raises:

  • (NoMethodError) 


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# File 'lib/deepstream/record.rb', line 100

def method_missing(name, *args)
  name = name.to_s
  return @data.fetch(@data.is_a?(Array) ? name.to_i : name, nil) if args.empty?
  return set(name[0..-2], *args) if name.end_with?('=') && !args.empty?
  raise(NoMethodError, name)
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/deepstream/record.rb', line 7

def data
  @data
end

Instance Method Details

#__name ⇒ Object 



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# File 'lib/deepstream/record.rb', line 24

def __name
  @name
end

#__version ⇒ Object 



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# File 'lib/deepstream/record.rb', line 20

def __version
  @version
end

#delete ⇒ Object 



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# File 'lib/deepstream/record.rb', line 56

def delete
  @client.delete(@name)
end

#end_reinitializing ⇒ Object 



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# File 'lib/deepstream/record.rb', line 42

def end_reinitializing
  reset_version if @client.options[:reinitialize_master]
  set(@data_cache) if @client.options[:reinitialize_master]
  @is_reinitializing = false
end

#inspect ⇒ Object 



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# File 'lib/deepstream/record.rb', line 48

def inspect
  "#{self.class} #{@name} #{@version} #{@data}"
end

#is_reinitializing? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deepstream/record.rb', line 32

def is_reinitializing?
  @is_reinitializing
end

#patch(version, path, value) ⇒ Object 



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# File 'lib/deepstream/record.rb', line 86

def patch(version, path, value)
  @version = version.to_i
  set_path(@data, path, Helpers.to_type(value))
rescue => e
  @client.on_exception(e)
end

#read(version, data) ⇒ Object 



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# File 'lib/deepstream/record.rb', line 78

def read(version, data)
  update(version, data)
  if @ready_callback
    @ready_callback.call(self)
    @ready_callback = nil
  end
end

#reset_version ⇒ Object 



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# File 'lib/deepstream/record.rb', line 28

def reset_version
  @version = 0
end

#set(*args) ⇒ Object 



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# File 'lib/deepstream/record.rb', line 60

def set(*args)
  if args.size == 1
    raise(ArgumentError, "Record data must be a hash") unless args.first.is_a?(Hash)
    @data = args.first
    @client.send_message(TOPIC::RECORD, ACTION::UPDATE, @name, (@version += 1), @data.to_json) if @version
  elsif args.size == 2
    path, value = args
    set_path(@data, path, value)
    @client.send_message(TOPIC::RECORD, ACTION::PATCH, @name, (@version += 1), path, Helpers.to_deepstream_type(value)) if @version
  end
rescue => e
  @client.on_exception(e)
end

#start_reinitializing ⇒ Object 



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# File 'lib/deepstream/record.rb', line 36

def start_reinitializing
  @is_reinitializing = true
  @data_cache = @data
  @client.send_message(TOPIC::RECORD, ACTION::CREATEORREAD, @name, priority: true)
end

#unsubscribe ⇒ Object 



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# File 'lib/deepstream/record.rb', line 52

def unsubscribe
  @client.send_message(TOPIC::RECORD, ACTION::UNSUBSCRIBE, name)
end

#update(version, data) ⇒ Object 



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# File 'lib/deepstream/record.rb', line 93

def update(version, data)
  @version = version.to_i
  @data = JSON.parse(data)
rescue => e
  @client.on_exception(e)
end

#when_ready(&block) ⇒ Object 



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# File 'lib/deepstream/record.rb', line 74

def when_ready(&block)
  @ready_callback = block
end