Class: Sfp::Runtime

Inherits:
Object
  • Object
show all
Defined in:
lib/sfpagent/runtime.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model) ⇒ Runtime

Returns a new instance of Runtime.



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# File 'lib/sfpagent/runtime.rb', line 6

def initialize(model)
  @mutex_procedure = Mutex.new
  @mutex_get_state = Mutex.new
  @root = nil
  @cloudfinder = Sfp::Helper::CloudFinder.new
  set_model(model)
end

Instance Attribute Details

#cloudfinder ⇒ Object (readonly)

Returns the value of attribute cloudfinder.



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# File 'lib/sfpagent/runtime.rb', line 4

def cloudfinder
  @cloudfinder
end

#model ⇒ Object (readonly)

Returns the value of attribute model.



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# File 'lib/sfpagent/runtime.rb', line 4

def model
  @model
end

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/sfpagent/runtime.rb', line 4

def root
  @root
end

Instance Method Details

#execute_action(action) ⇒ Object 



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# File 'lib/sfpagent/runtime.rb', line 19

def execute_action(action)
  return false if !defined?(@root) or @root.nil?

  def normalise_parameters(params)
    p = {}
    params.each { |k,v| p[k[2,k.length-2]] = v }
    p
  end

  module_path, method_name = action['name'].pop_ref
  mod = @root.at?(module_path)[:_self]

  if mod.nil?
    raise Exception, "Module #{module_path} cannot be found!"

  elsif mod.is_a?(Sfp::Module::Shell)
    params = normalise_parameters(action['parameters'])
    mod.execute method_name, params

  elsif not mod.respond_to?(method_name)
    raise Exception, "Cannot execute #{action['name']}!"

  else
    params = normalise_parameters(action['parameters'])
    if mod.synchronized.rindex(method_name)
      @mutex_procedure.synchronize {
        mod.send method_name.to_sym, params
      }
    else
      mod.send method_name.to_sym, params
    end

  end

  # TODO - check post-execution state for verification
end

#get_state(as_sfp = false) ⇒ Object 



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# File 'lib/sfpagent/runtime.rb', line 72

def get_state(as_sfp=false)
  @mutex_get_state.synchronize {
    update_state(@root)
    get_object_state(@root, @model)
  }
end

#normalise_parameters(params) ⇒ Object 



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# File 'lib/sfpagent/runtime.rb', line 22

def normalise_parameters(params)
  p = {}
  params.each { |k,v| p[k[2,k.length-2]] = v }
  p
end

#set_model(model) ⇒ Object 



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# File 'lib/sfpagent/runtime.rb', line 56

def set_model(model)
  @mutex_get_state.synchronize {
    @model = model
    if @model.is_a?(Hash)
      root_model = Sfp::Helper.deep_clone(@model)
      root_model.accept(SFPtoRubyValueConverter)
      root_model.accept(ParentEliminator)
      @root = update_model(root_model, root_model, '$')
      @root.accept(ParentGenerator)

      @cloudfinder.clouds = []
      @model.accept(@cloudfinder.reset)
    end
  }
end

#whoami? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sfpagent/runtime.rb', line 14

def whoami?
  @model.each { |key,value| return key if key[0,1] != '_' and value['_context'] == 'object' } if !@model.nil?
  nil
end