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wsdlencodedregistry.rb

# SOAP4R - WSDL encoded mapping registry.
# Copyright (C) 2000-2003, 2005  NAKAMURA, Hiroshi <nahi@ruby-lang.org>.

# This program is copyrighted free software by NAKAMURA, Hiroshi.  You can
# redistribute it and/or modify it under the same terms of Ruby's license;
# either the dual license version in 2003, or any later version.

require 'xsd/qname'
require 'xsd/namedelements'
require 'soap/baseData'
require 'soap/mapping/mapping'
require 'soap/mapping/typeMap'

module SOAP
module Mapping

class WSDLEncodedRegistry < Registry
  include TraverseSupport

attr_reader :definedelements
  attr_reader :definedtypes
  attr_accessor :excn_handler_obj2soap
  attr_accessor :excn_handler_soap2obj

def initialize(definedtypes = XSD::NamedElements::Empty)
    @definedtypes = definedtypes
    # @definedelements = definedelements  needed?
    @excn_handler_obj2soap = nil
    @excn_handler_soap2obj = nil
    # For mapping AnyType element.
    @rubytype_factory = RubytypeFactory.new(
      :allow_untyped_struct => true,
      :allow_original_mapping => true
    )
    @schema_element_cache = {}
  end

def obj2soap(obj, qname = nil)
    soap_obj = nil
    if type = @definedtypes[qname]
      soap_obj = obj2typesoap(obj, type)
    else
      soap_obj = any2soap(obj, qname)
    end
    return soap_obj if soap_obj
    if @excn_handler_obj2soap
      soap_obj = @excn_handler_obj2soap.call(obj) { |yield_obj|
        Mapping._obj2soap(yield_obj, self)
      }
      return soap_obj if soap_obj
    end
    if qname
      raise MappingError.new("cannot map #{obj.class.name} as #{qname}")
    else
      raise MappingError.new("cannot map #{obj.class.name} to SOAP/OM")
    end
  end

# map anything for now: must refer WSDL while mapping.  [ToDo]
  def soap2obj(node, obj_class = nil)
    begin
      return any2obj(node, obj_class)
    rescue MappingError
    end
    if @excn_handler_soap2obj
      begin
        return @excn_handler_soap2obj.call(node) { |yield_node|
	    Mapping._soap2obj(yield_node, self)
	  }
      rescue Exception
      end
    end
    raise MappingError.new("cannot map #{node.type.name} to Ruby object")
  end

private

def any2soap(obj, qname)
    if obj.nil?
      SOAPNil.new
    elsif qname.nil? or qname == XSD::AnyTypeName
      @rubytype_factory.obj2soap(nil, obj, nil, self)
    elsif obj.is_a?(XSD::NSDBase)
      soap2soap(obj, qname)
    elsif (type = TypeMap[qname])
      base2soap(obj, type)
    else
      nil
    end
  end

def soap2soap(obj, type_qname)
    if obj.is_a?(SOAPBasetype)
      obj
    elsif obj.is_a?(SOAPStruct) && (type = @definedtypes[type_qname])
      soap_obj = obj
      mark_marshalled_obj(obj, soap_obj)
      elements2soap(obj, soap_obj, type.content.elements)
      soap_obj
    elsif obj.is_a?(SOAPArray) && (type = @definedtypes[type_qname])
      soap_obj = obj
      contenttype = type.child_type
      mark_marshalled_obj(obj, soap_obj)
      obj.replace do |ele|
	Mapping._obj2soap(ele, self, contenttype)
      end
      soap_obj
    else
      nil
    end
  end

def obj2typesoap(obj, type)
    if type.is_a?(::WSDL::XMLSchema::SimpleType)
      simpleobj2soap(obj, type)
    else
      complexobj2soap(obj, type)
    end
  end

def simpleobj2soap(obj, type)
    type.check_lexical_format(obj)
    return SOAPNil.new if obj.nil?      # ToDo: check nillable.
    o = base2soap(obj, TypeMap[type.base])
    o
  end

def complexobj2soap(obj, type)
    case type.compoundtype
    when :TYPE_STRUCT
      struct2soap(obj, type.name, type)
    when :TYPE_ARRAY
      array2soap(obj, type.name, type)
    when :TYPE_MAP
      map2soap(obj, type.name, type)
    when :TYPE_SIMPLE
      simpleobj2soap(obj, type.simplecontent)
    when :TYPE_EMPTY
      raise MappingError.new("should be empty") unless obj.nil?
      SOAPNil.new
    else
      raise MappingError.new("unknown compound type: #{type.compoundtype}")
    end
  end

def base2soap(obj, type)
    soap_obj = nil
    if type <= XSD::XSDString
      str = XSD::Charset.encoding_conv(obj.to_s,
        Thread.current[:SOAPExternalCES], XSD::Charset.encoding)
      soap_obj = type.new(str)
      mark_marshalled_obj(obj, soap_obj)
    else
      soap_obj = type.new(obj)
    end
    soap_obj
  end

def struct2soap(obj, type_qname, type)
    return SOAPNil.new if obj.nil?      # ToDo: check nillable.
    soap_obj = SOAPStruct.new(type_qname)
    unless obj.nil?
      mark_marshalled_obj(obj, soap_obj)
      elements2soap(obj, soap_obj, type.content.elements)
    end
    soap_obj
  end

def array2soap(obj, type_qname, type)
    return SOAPNil.new if obj.nil?      # ToDo: check nillable.
    arytype = type.child_type
    soap_obj = SOAPArray.new(ValueArrayName, 1, arytype)
    unless obj.nil?
      mark_marshalled_obj(obj, soap_obj)
      obj.each do |item|
        soap_obj.add(Mapping._obj2soap(item, self, arytype))
      end
    end
    soap_obj
  end

MapKeyName = XSD::QName.new(nil, "key")
  MapValueName = XSD::QName.new(nil, "value")
  def map2soap(obj, type_qname, type)
    return SOAPNil.new if obj.nil?      # ToDo: check nillable.
    keytype = type.child_type(MapKeyName) || XSD::AnyTypeName
    valuetype = type.child_type(MapValueName) || XSD::AnyTypeName
    soap_obj = SOAPStruct.new(MapQName)
    unless obj.nil?
      mark_marshalled_obj(obj, soap_obj)
      obj.each do |key, value|
        elem = SOAPStruct.new
        elem.add("key", Mapping._obj2soap(key, self, keytype))
        elem.add("value", Mapping._obj2soap(value, self, valuetype))
        # ApacheAxis allows only 'item' here.
        soap_obj.add("item", elem)
      end
    end
    soap_obj
  end

def elements2soap(obj, soap_obj, elements)
    elements.each do |element|
      name = element.name.name
      child_obj = Mapping.get_attribute(obj, name)
      soap_obj.add(name,
        Mapping._obj2soap(child_obj, self, element.type || element.name))
    end
  end

def any2obj(node, obj_class)
    unless obj_class
      typestr = XSD::CodeGen::GenSupport.safeconstname(node.elename.name)
      obj_class = Mapping.class_from_name(typestr)
    end
    if obj_class and obj_class.class_variables.include?('@@schema_element')
      soap2stubobj(node, obj_class)
    else
      Mapping._soap2obj(node, Mapping::DefaultRegistry, obj_class)
    end
  end

def soap2stubobj(node, obj_class)
    obj = Mapping.create_empty_object(obj_class)
    unless node.is_a?(SOAPNil)
      add_elements2stubobj(node, obj)
    end
    obj
  end

def add_elements2stubobj(node, obj)
    elements, as_array = schema_element_definition(obj.class)
    vars = {}
    node.each do |name, value|
      item = elements.find { |k, v| k.name == name }
      if item
        elename, class_name = item
        if klass = Mapping.class_from_name(class_name)
          # klass must be a SOAPBasetype or a class
          if klass.ancestors.include?(::SOAP::SOAPBasetype)
            if value.respond_to?(:data)
              child = klass.new(value.data).data
            else
              child = klass.new(nil).data
            end
          else
            child = Mapping._soap2obj(value, self, klass)
          end
        elsif klass = Mapping.module_from_name(class_name)
          # simpletype
          if value.respond_to?(:data)
            child = value.data
          else
            raise MappingError.new(
              "cannot map to a module value: #{class_name}")
          end
        else
          raise MappingError.new("unknown class: #{class_name}")
        end
      else      # untyped element is treated as anyType.
        child = Mapping._soap2obj(value, self)
      end
      vars[name] = child
    end
    Mapping.set_attributes(obj, vars)
  end

# it caches @@schema_element.  this means that @@schema_element must not be
  # changed while a lifetime of a WSDLLiteralRegistry.
  def schema_element_definition(klass)
    @schema_element_cache[klass] ||= Mapping.schema_element_definition(klass)
  end
end

end
end

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