Class: Extractor

Inherits:
Object
  • Object
show all
Defined in:
lib/roundtrip_xml/extractor.rb

Instance Method Summary collapse

Constructor Details

#initialize(roxml_objs, runtime, root_class, definitions = nil, &block) ⇒ Extractor

Returns a new instance of Extractor.



12
13
14
15
16
17
18
19
20
21
 
# File 'lib/roundtrip_xml/extractor.rb', line 12

def initialize(roxml_objs, runtime, root_class, definitions = nil, &block)
  @roxml_objs = roxml_objs
  @runtime = runtime
  @root_class = root_class
  if block_given?
    @definitions = eval_definitions root_class, &block
  else
    @definitions = eval_definitions root_class, definitions
  end
end

Instance Method Details

#convert_roxml_obj(obj) ⇒ Object 



79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
 
# File 'lib/roundtrip_xml/extractor.rb', line 79

def convert_roxml_obj (obj)
  name = obj.class.class_name
  defs = @definitions[name]

  defs.each do |defin|
    diffs = diff_definition(defin, obj)
    if diffs.all? {|diff| diff.template_val.is_a?(Utils::UndefinedParam) || diff.template_val == nil }
      new_obj = defin.class.new
      param_values = diffs.inject({}) do |values, diff|
        name = diff.template_val ? diff.template_val.name : diff.key
        values[name] = diff.obj_val
        values
      end
      set_attributes new_obj, param_values
      # return convert_roxml_obj new_obj
      obj = new_obj
    end
  end if defs

  obj.class.roxml_attrs.each do |a|
    if a.array?
      elements = obj.send(a.accessor).map {|el| convert_roxml_obj el}
      obj.send a.setter.to_sym, elements
    elsif a.sought_type.class == Class
      current_value = obj.send(a.accessor)
      obj.send a.setter.to_sym, convert_roxml_obj(current_value) if current_value
    end
  end
  obj
end

#convert_roxml_objs ⇒ Object 



72
73
74
75
76
77
 
# File 'lib/roundtrip_xml/extractor.rb', line 72

def convert_roxml_objs
  def_names = @definitions.keys
  @roxml_objs.map do |obj|
    convert_roxml_obj obj
  end
end

#diff_definition(defin, obj) ⇒ Object 



53
54
55
56
57
58
59
60
61
62
63
64
 
# File 'lib/roundtrip_xml/extractor.rb', line 53

def diff_definition(defin, obj)
  def_hash = defin.to_hash
  obj_hash = obj.to_hash
  [def_hash, obj_hash].each do |h|
    h.delete '__class'
  end
  diffs = HashDiff.diff(obj_hash, def_hash).map do |diff|
    ROXMLDiff.new diff[1], from_hash(diff[2]), diff[3]
  end

  diffs
end

#eval_definitions(root_class, str = nil, &block) ⇒ Object 



23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/roundtrip_xml/extractor.rb', line 23

def eval_definitions(root_class, str = nil, &block)
  old_names = @runtime.instance_variable_get(:@classes).keys
  if block_given?
    @runtime.evaluate_raw '', root_class, &block
  else
    @runtime.evaluate_raw str, root_class
  end
  new_names = @runtime.instance_variable_get(:@classes).keys
  def_names = new_names - old_names
  def_names.inject({}) do |out, name|
    clazz = @runtime.fetch(name)
    parent = get_root_class clazz
    obj = clazz.new
    cleanroom = @runtime.create_cleanroom clazz, true
    cleanroom.get_el.process.each { |p| cleanroom.evaluate &p }
    out[parent] ||= []
    out[parent] << cleanroom.get_el
    out
  end
end

#from_hash(hash) ⇒ Object 



66
67
68
69
70
 
# File 'lib/roundtrip_xml/extractor.rb', line 66

def from_hash(hash)
  return hash unless hash.is_a? Hash
  @runtime.fetch(hash['__class']).from_hash @runtime, hash

end

#get_root_class(clazz) ⇒ Object 



44
45
46
47
48
49
50
51
 
# File 'lib/roundtrip_xml/extractor.rb', line 44

def get_root_class(clazz)
  super_clazz = @runtime.fetch clazz.superclass.class_name
  if super_clazz.subclass?
    get_root_class super_clazz
  else
    super_clazz.class_name
  end
end

#set_attributes(obj, params) ⇒ Object 



110
111
112
113
114
115
116
117
 
# File 'lib/roundtrip_xml/extractor.rb', line 110

def set_attributes(obj, params)
  params.each do |param, val|
    methods = param.to_s.split '.'
    # set_deep_attribute obj, methods, val
    obj.send "#{param}=", val
  end

end