Class: Textus::ExtensionRegistry

Inherits:
Object
  • Object
show all
Defined in:
lib/textus/extension_registry.rb

Constant Summary collapse

EVENTS = 
%i[put delete refresh build accept].freeze

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ExtensionRegistry

Returns a new instance of ExtensionRegistry.



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# File 'lib/textus/extension_registry.rb', line 5

def initialize
  @fetchers = {}
  @reducers = {}
  @hooks = {}
end

Instance Method Details

#fetcher(name) ⇒ Object 



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# File 'lib/textus/extension_registry.rb', line 32

def fetcher(name)
  @fetchers[name.to_sym] or raise UsageError.new("unknown fetcher: #{name}")
end

#fetcher_names ⇒ Object 



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# File 'lib/textus/extension_registry.rb', line 44

def fetcher_names = @fetchers.keys

#hook_events ⇒ Object 



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# File 'lib/textus/extension_registry.rb', line 46

def hook_events   = @hooks.keys

#hooks(event) ⇒ Object 



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# File 'lib/textus/extension_registry.rb', line 40

def hooks(event)
  @hooks[event.to_sym] || []
end

#reducer(name) ⇒ Object 



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# File 'lib/textus/extension_registry.rb', line 36

def reducer(name)
  @reducers[name.to_sym] or raise UsageError.new("unknown reducer: #{name}")
end

#reducer_names ⇒ Object 



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# File 'lib/textus/extension_registry.rb', line 45

def reducer_names = @reducers.keys

#register_fetcher(name, &blk) ⇒ Object

Raises:



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# File 'lib/textus/extension_registry.rb', line 11

def register_fetcher(name, &blk)
  name = name.to_sym
  raise UsageError.new("fetcher '#{name}' already registered") if @fetchers.key?(name)

  @fetchers[name] = blk
end

#register_hook(event, name, &blk) ⇒ Object

Raises:



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# File 'lib/textus/extension_registry.rb', line 25

def register_hook(event, name, &blk)
  event = event.to_sym
  raise UsageError.new("unknown event: #{event}") unless EVENTS.include?(event)

  (@hooks[event] ||= []) << { name: name.to_sym, callable: blk }
end

#register_reducer(name, &blk) ⇒ Object

Raises:



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# File 'lib/textus/extension_registry.rb', line 18

def register_reducer(name, &blk)
  name = name.to_sym
  raise UsageError.new("reducer '#{name}' already registered") if @reducers.key?(name)

  @reducers[name] = blk
end