Module: LightModels::Serialization

Defined in:
lib/lightmodels/serialization.rb

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.next_serialization_id ⇒ Object

Returns the value of attribute next_serialization_id.



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# File 'lib/lightmodels/serialization.rb', line 15

def next_serialization_id
  @next_serialization_id
end

.serialization_ids ⇒ Object (readonly)

Returns the value of attribute serialization_ids.



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# File 'lib/lightmodels/serialization.rb', line 14

def serialization_ids
  @serialization_ids
end

Class Method Details

.jsonize_attr_value(map, e_object, e_attr) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 32

def self.jsonize_attr_value(map,e_object,e_attr)
  value = e_object.eGet e_attr
  if e_attr.upperBound==1
    map["attr_#{e_attr.name}"] = value
  else
    l = []
    (0..(value.size-1)).each do |i|
      l << value.get(i)
    end
    map["attr_#{e_attr.name}"] = l
  end
end

.jsonize_obj(e_object, adapters = {}) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 70

def self.jsonize_obj(e_object, adapters={})
  if not e_object
    nil
  else 
    map = { 'type' => qname(e_object), 'id' => serialization_id(e_object) }
    e_class = e_object.eClass
    e_class.eAllAttributes.each do |a|    
      jsonize_attr_value(map,e_object,a)
    end
    e_class.eAllReferences.each do |r|
      #puts "ref #{r.name} #{r.containment}"
      jsonize_ref_value(map,e_object,r,adapters)
    end
    if adapters.has_key? qname(e_object)
      adapters[qname(e_object)].adapt(e_object,map)
    end
    map
  end
end

.jsonize_ref_single_el(single_value, containment, adapters) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 45

def self.jsonize_ref_single_el(single_value,containment,adapters)
  if containment
    jsonize_obj(single_value,adapters)
  else
    serialization_id(single_value)
  end
end

.jsonize_ref_value(map, e_object, e_ref, adapters) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 53

def self.jsonize_ref_value(map,e_object,e_ref,adapters)
  value = e_object.eGet e_ref

  propname = "relcont_#{e_ref.name}" if e_ref.containment
  propname = "relnoncont_#{e_ref.name}" if not e_ref.containment

  if e_ref.upperBound==1   
    map[propname] = jsonize_ref_single_el(value,e_ref.containment,adapters)
  else
    l = []
    (0..(value.size-1)).each do |i|
      l << jsonize_ref_single_el(value.get(i),e_ref.containment,adapters)
    end
    map[propname] = l
  end
end

.load_file(path, max_nesting = 100) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 90

def self.load_file(path,max_nesting=100)
  parse(File.read(path),{max_nesting: max_nesting})
end

.load_models_from_dir(dir, verbose = false, max = -1)) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 94

def self.load_models_from_dir(dir,verbose=false,max=-1)
  per_type_values_map = Hash.new do |pt_hash,pt_key| 
    pt_hash[pt_key] = Hash.new do |pa_hash,pa_key|
      pa_hash[pa_key] = CountingMap.new
    end
  end

  n = 0
  files = Dir[dir+'/**/*.json']
  files = files[0..(max-1)] if max!=-1
  files.each do |f|
    n+=1
    puts "...#{n}) #{f}" if verbose
    model = ::JSON.load_file(f,max_nesting=500)
    EMF.traverse(model) do |n|
      if n
        puts "\tnode: #{n['type']}" if verbose
        EMF.attrs(n).each do |a|
          puts "\t\tattr: #{a}" if verbose
          per_type_values_map[n['type']][a].inc(n[a])
        end
      end
    end
  end
  per_type_values_map
end

.qname(e_object) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 26

def self.qname(e_object)
  e_class = e_object.eClass
  e_package = e_class.ePackage
  "#{e_package.nsURI}##{e_class.name}"
end

.save_as_model(root, model_path) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 137

def self.save_as_model(root,model_path)
  model = to_model(root)
  dir = File.dirname(model_path)
  FileUtils.mkdir_p(dir) 

  File.open(model_path, 'w') do |file|     
    file.write(JSON.pretty_generate(model))
  end
end

.serialization_id(obj) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 18

def self.serialization_id(obj)
  unless LightModels::Serialization.serialization_ids[obj]   
    LightModels::Serialization.serialization_ids[obj] = LightModels::Serialization.next_serialization_id
    LightModels::Serialization.next_serialization_id += 1
  end
  LightModels::Serialization.serialization_ids[obj]
end

.to_model(root) ⇒ Object 



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# File 'lib/lightmodels/serialization.rb', line 121

def self.to_model(root)
  model = {}
  external_elements = if root.eResource
    root.eResource.contents.select {|e| e!=root}
  else
    []
  end

  model['root'] = jsonize_obj(root)
  model['external_elements'] = []
  external_elements.each do |ee|
    model['external_elements'] << jsonize_obj(ee)
  end
  model
end