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# SOAP4R - RPC Routing library
# Copyright (C) 2001, 2002 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 'soap/soap'
require 'soap/processor'
require 'soap/mapping'
require 'soap/rpc/rpc'
require 'soap/rpc/element'
module SOAP
module RPC
class Router
include SOAP
attr_reader :actor
attr_accessor :allow_unqualified_element
attr_accessor :default_encodingstyle
attr_accessor :mapping_registry
def initialize(actor)
@actor = actor
@receiver = {}
@method_name = {}
@method = {}
@allow_unqualified_element = false
@default_encodingstyle = nil
@mapping_registry = nil
end
def add_method(receiver, qname, soapaction, name, param_def)
fqname = fqname(qname)
@receiver[fqname] = receiver
@method_name[fqname] = name
@method[fqname] = RPC::SOAPMethodRequest.new(qname, param_def, soapaction)
end
def add_header_handler
raise NotImplementedError.new
end
# Routing...
def route(soap_string, charset = nil)
opt = options
opt[:charset] = charset
is_fault = false
begin
header, body = Processor.unmarshal(soap_string, opt)
# So far, header is omitted...
soap_request = body.request
unless soap_request.is_a?(SOAPStruct)
raise RPCRoutingError.new("Not an RPC style.")
end
soap_response = dispatch(soap_request)
rescue Exception
soap_response = fault($!)
is_fault = true
end
header = SOAPHeader.new
body = SOAPBody.new(soap_response)
response_string = Processor.marshal(header, body, opt)
return response_string, is_fault
end
# Create fault response string.
def create_fault_response(e, charset = nil)
header = SOAPHeader.new
soap_response = fault(e)
body = SOAPBody.new(soap_response)
opt = options
opt[:charset] = charset
Processor.marshal(header, body, opt)
end
private
# Create new response.
def create_response(qname, result)
name = fqname(qname)
if (@method.key?(name))
method = @method[name]
else
raise RPCRoutingError.new("Method: #{ name } not defined.")
end
soap_response = method.create_method_response
if soap_response.have_outparam?
unless result.is_a?(Array)
raise RPCRoutingError.new("Out parameter was not returned.")
end
outparams = {}
i = 1
soap_response.each_param_name('out', 'inout') do |outparam|
outparams[outparam] = Mapping.obj2soap(result[i], @mapping_registry)
i += 1
end
soap_response.set_outparam(outparams)
soap_response.retval = Mapping.obj2soap(result[0], @mapping_registry)
else
soap_response.retval = Mapping.obj2soap(result, @mapping_registry)
end
soap_response
end
# Create fault response.
def fault(e)
detail = Mapping::SOAPException.new(e)
SOAPFault.new(
SOAPString.new('Server'),
SOAPString.new(e.to_s),
SOAPString.new(@actor),
Mapping.obj2soap(detail, @mapping_registry))
end
# Dispatch to defined method.
def dispatch(soap_method)
request_struct = Mapping.soap2obj(soap_method, @mapping_registry)
values = soap_method.collect { |key, value| request_struct[key] }
method = lookup(soap_method.elename, values)
unless method
raise RPCRoutingError.new(
"Method: #{ soap_method.elename } not supported.")
end
result = method.call(*values)
create_response(soap_method.elename, result)
end
# Method lookup
def lookup(qname, values)
name = fqname(qname)
# It may be necessary to check all part of method signature...
if @method.member?(name)
@receiver[name].method(@method_name[name].intern)
else
nil
end
end
def fqname(qname)
"#{ qname.namespace }:#{ qname.name }"
end
def options
opt = {}
opt[:default_encodingstyle] = @default_encodingstyle
if @allow_unqualified_element
opt[:allow_unqualified_element] = true
end
opt
end
end
end
end
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