Module: MessageStore::StreamName

Defined in:
lib/message_store/stream_name.rb

Constant Summary collapse

Error = 
Class.new(RuntimeError)

Class Method Summary collapse

Class Method Details

.category?(stream_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/message_store/stream_name.rb', line 47

def self.category?(stream_name)
  !stream_name.include?(id_delimiter)
end

.category_delimiter ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 9

def self.category_delimiter
  ':'
end

.get_category(stream_name) ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 43

def self.get_category(stream_name)
  split(stream_name)[0]
end

.get_entity_name(stream_name) ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 67

def self.get_entity_name(stream_name)
  get_category(stream_name).split(category_delimiter)[0]
end

.get_id(stream_name) ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 39

def self.get_id(stream_name)
  split(stream_name)[1]
end

.get_type_list(stream_name) ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 51

def self.get_type_list(stream_name)
  return nil unless stream_name.include?(category_delimiter)

  category = get_category(stream_name)

  category.split(category_delimiter)[1]
end

.get_types(stream_name) ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 59

def self.get_types(stream_name)
  type_list = get_type_list(stream_name)

  return [] if type_list.nil?

  type_list.split(type_delimiter)
end

.id_delimiter ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 5

def self.id_delimiter
  '-'
end

.split(stream_name) ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 35

def self.split(stream_name)
  stream_name.split(id_delimiter, 2)
end

.stream_name(category_name, id = nil, type: nil, types: nil) ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 17

def self.stream_name(category_name, id=nil, type: nil, types: nil)
  if category_name == nil
    raise Error, "Category name must not be omitted from stream name"
  end

  types = Array(types)
  types.unshift(type) unless type.nil?

  type_list = nil
  type_list = types.join(type_delimiter) unless types.empty?

  stream_name = category_name
  stream_name = "#{stream_name}#{category_delimiter}#{type_list}" unless type_list.nil?
  stream_name = "#{stream_name}#{id_delimiter}#{id}" unless id.nil?

  stream_name
end

.type_delimiter ⇒ Object 



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# File 'lib/message_store/stream_name.rb', line 13

def self.type_delimiter
  '+'
end