Class: RGen::Instantiator::JsonInstantiator
- Inherits:
-
Object
- Object
- RGen::Instantiator::JsonInstantiator
- Defined in:
- lib/rgen/instantiator/json_instantiator.rb
Instance Method Summary collapse
- #createObject(hash) ⇒ Object
-
#initialize(env, mm, options = {}) ⇒ JsonInstantiator
constructor
A new instance of JsonInstantiator.
-
#instantiate(str) ⇒ Object
creates the elements described by the json string
str
returns an array of ReferenceResolver::UnresolvedReference describing the references which could not be resolved.
Constructor Details
#initialize(env, mm, options = {}) ⇒ JsonInstantiator
Returns a new instance of JsonInstantiator.
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# File 'lib/rgen/instantiator/json_instantiator.rb', line 10 def initialize(env, mm, ={}) @env = env @mm = mm @options = @unresolvedReferences = [] @parser = JsonParser.new(self) end |
Instance Method Details
#createObject(hash) ⇒ Object
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# File 'lib/rgen/instantiator/json_instantiator.rb', line 27 def createObject(hash) className = hash["_class"] raise "no class information" unless className clazz = @mm.const_get(className) raise "class not found: #{className}" unless clazz hash.delete("_class") urefs = [] hash.keys.each do |k| f = eFeature(k, clazz) hash[k] = [hash[k]] if f.many && !hash[k].is_a?(Array) if f.is_a?(RGen::ECore::EReference) && !f.containment if f.many idents = hash[k] hash[k] = idents.collect do |i| proxy = RGen::MetamodelBuilder::MMProxy.new(i) urefs << ReferenceResolver::UnresolvedReference.new(nil, k, proxy) proxy end else ident = hash[k] ident = ident.first if ident.is_a?(Array) proxy = RGen::MetamodelBuilder::MMProxy.new(ident) hash[k] = proxy urefs << ReferenceResolver::UnresolvedReference.new(nil, k, proxy) end elsif f.eType.is_a?(RGen::ECore::EEnum) hash[k] = hash[k].to_sym elsif f.eType.instanceClassName == "Float" hash[k] = hash[k].to_f end end obj = @env.new(clazz, hash) urefs.each do |r| r.element = obj @unresolvedReferences << r end obj end |
#instantiate(str) ⇒ Object
creates the elements described by the json string str
returns an array of ReferenceResolver::UnresolvedReference describing the references which could not be resolved
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# File 'lib/rgen/instantiator/json_instantiator.rb', line 21 def instantiate(str) root = @parser.parse(str) resolver = QualifiedNameResolver.new(root, @options) resolver.resolveReferences(@unresolvedReferences) end |