Class: RXSD::RubyObjectBuilder

Inherits:
ObjectBuilder show all
Defined in:
lib/rxsd/builders/ruby_object.rb

Overview

Implements the RXSD::ObjectBuilder interface to build Ruby Objects from a xsd-conforming xml doc

Instance Attribute Summary

Attributes inherited from ObjectBuilder

#attributes, #children, #content, #obj, #parent, #tag_name

Instance Method Summary collapse

Methods inherited from ObjectBuilder

#initialize

Constructor Details

This class inherits a constructor from RXSD::ObjectBuilder

Instance Method Details

#build(schema) ⇒ Object

implementation of RXSD::ObjectBuilder::build



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# File 'lib/rxsd/builders/ruby_object.rb', line 12

def build(schema)
   # return object if already built
   return @obj unless @obj.nil?
   
   Logger.debug "instantiating class #{@tag_name} from xsd"

   # find class builder corresponding to tag_name to instantiate
   tags   = schema.tags
   klass  = tags[@tag_name].klass

   # instantiate the target class
   if @content.nil? # not a text based obj, construct normally
     @obj = klass.new
   elsif klass == Array # special case when instantiating arrays, need to specify item type
     @obj = klass.from_s @content, tags[@tag_name].associated_builder.klass
   else
     @obj = klass.from_s @content
   end

   # go through each attribute, find corresponding class builder, 
   # instantiate, and assign to object
   @attributes.each { |atn, atv|
     if tags.has_key? @tag_name + ":" + atn # FIXME how do we want to handle attributes that are not in the schema (eg the else here)
       aklass  = tags[@tag_name + ":" + atn].klass
       if aklass == Array # special case when instantiating arrays, need to specify item type
         val = aklass.from_s atv, tags[@tag_name + ":" + atn].associated_builder.klass
       else
         val = aklass.from_s atv
       end
       @obj.send("#{atn.underscore}=".intern, val)
     end
   }

   # instantiate each child using builder and assign to object
   @children.each { |child|
     cob  = RubyObjectBuilder.new(:builder => child)
     cobj = cob.build(schema)
     @obj.send("#{cob.tag_name.underscore}=".intern, cobj)
   }

   Logger.debug "object type #{@tag_name} instantiated, returning"

   return @obj
end