class XMLRPC::Create

# File lib/xmlrpc/create.rb, line 106
def initialize(xml_writer = nil)
  @writer = xml_writer || Config::DEFAULT_WRITER.new
end

# File lib/xmlrpc/create.rb, line 111
def methodCall(name, *params)
  name = name.to_s

  if name !~ /[a-zA-Z0-9_.:\/]+/
    raise ArgumentError, "Wrong XML-RPC method-name"
  end

  parameter = params.collect do |param|
    @writer.ele("param", conv2value(param))
  end

  tree = @writer.document(
           @writer.pi("xml", 'version="1.0"'),
           @writer.ele("methodCall",
             @writer.tag("methodName", name),
             @writer.ele("params", *parameter)
           )
         )

  @writer.document_to_str(tree) + "\n"
end

# File lib/xmlrpc/create.rb, line 145
def methodResponse(is_ret, *params)

  if is_ret
    resp = params.collect do |param|
      @writer.ele("param", conv2value(param))
    end

    resp = [@writer.ele("params", *resp)]
  else
    if params.size != 1 or params[0] === XMLRPC::FaultException
      raise ArgumentError, "no valid fault-structure given"
    end
    resp = @writer.ele("fault", conv2value(params[0].to_h))
  end


  tree = @writer.document(
           @writer.pi("xml", 'version="1.0"'),
           @writer.ele("methodResponse", resp)
         )

  @writer.document_to_str(tree) + "\n"
end

# File lib/xmlrpc/create.rb, line 176
def conv2value(param) # :doc:

    val = case param
    when Fixnum, Bignum
      # XML-RPC's int is 32bit int, and Fixnum also may be beyond 32bit
      if Config::ENABLE_BIGINT
        @writer.tag("i4", param.to_s)
      else
        if param >= -(2**31) and param <= (2**31-1)
          @writer.tag("i4", param.to_s)
        else
          raise "Bignum is too big! Must be signed 32-bit integer!"
        end
      end
    when TrueClass, FalseClass
      @writer.tag("boolean", param ? "1" : "0")

    when Symbol
      @writer.tag("string", param.to_s)

    when String
      @writer.tag("string", param)

    when NilClass
      if Config::ENABLE_NIL_CREATE
        @writer.ele("nil")
      else
        raise "Wrong type NilClass. Not allowed!"
      end

    when Float
      raise "Wrong value #{param}. Not allowed!" unless param.finite?
      @writer.tag("double", param.to_s)

    when Struct
      h = param.members.collect do |key|
        value = param[key]
        @writer.ele("member",
          @writer.tag("name", key.to_s),
          conv2value(value)
        )
      end

      @writer.ele("struct", *h)

    when Hash
      # TODO: can a Hash be empty?

      h = param.collect do |key, value|
        @writer.ele("member",
          @writer.tag("name", key.to_s),
          conv2value(value)
        )
      end

      @writer.ele("struct", *h)

    when Array
      # TODO: can an Array be empty?
      a = param.collect {|v| conv2value(v) }

      @writer.ele("array",
        @writer.ele("data", *a)
      )

    when Time, Date, ::DateTime
      @writer.tag("dateTime.iso8601", param.strftime("%Y%m%dT%H:%M:%S"))

    when XMLRPC::DateTime
      @writer.tag("dateTime.iso8601",
        format("%.4d%02d%02dT%02d:%02d:%02d", *param.to_a))

    when XMLRPC::Base64
      @writer.tag("base64", param.encoded)

    else
      if Config::ENABLE_MARSHALLING and param.class.included_modules.include? XMLRPC::Marshallable
        # convert Ruby object into Hash
        ret = {"___class___" => param.class.name}
        param.instance_variables.each {|v|
          name = v[1..-1]
          val = param.instance_variable_get(v)

          if val.nil?
            ret[name] = val if Config::ENABLE_NIL_CREATE
          else
            ret[name] = val
          end
        }
        return conv2value(ret)
      else
        ok, pa = wrong_type(param)
        if ok
          return conv2value(pa)
        else
          raise "Wrong type!"
        end
      end
    end

    @writer.ele("value", val)
end

# File lib/xmlrpc/create.rb, line 279
def wrong_type(value)
  false
end