require 'soap/rpc/driver'
require 'uri'
module ActionService # :nodoc:
module Client # :nodoc:
# Implements SOAP client support (using RPC encoding for the messages).
#
# ==== Example Usage
#
# class PersonAPI < ActionService::API::Base
# api_method :find_all, :returns => [[Person]]
# end
#
# soap_client = ActionService::Client::Soap.new(PersonAPI, "http://...")
# persons = soap_client.find_all
#
class Soap < Base
# Creates a new web service client using the SOAP RPC protocol.
#
# +api+ must be an ActionService::API::Base derivative, and
# +endpoint_uri+ must point at the relevant URL to which protocol requests
# will be sent with HTTP POST.
#
# Valid options:
# [<tt>:service_name</tt>] If the remote server has used a custom +wsdl_service_name+
# option, you must specify it here
def initialize(api, endpoint_uri, options={})
super(api, endpoint_uri)
@service_name = options[:service_name] || 'ActionService'
@namespace = "urn:#{@service_name}"
@mapper = ActionService::Protocol::Soap::SoapMapper.new(@namespace)
@protocol = ActionService::Protocol::Soap::SoapProtocol.new(@mapper)
@soap_action_base = options[:soap_action_base]
@soap_action_base ||= URI.parse(endpoint_uri).path
@driver = create_soap_rpc_driver(api, endpoint_uri)
end
protected
def perform_invocation(method_name, args)
@driver.send(method_name, *args)
end
def soap_action(method_name)
"#{@soap_action_base}/#{method_name}"
end
private
def create_soap_rpc_driver(api, endpoint_uri)
@mapper.map_api(api)
driver = SoapDriver.new(endpoint_uri, nil)
driver.mapping_registry = @mapper.registry
api.api_methods.each do |name, info|
public_name = api.public_api_method_name(name)
qname = XSD::QName.new(@namespace, public_name)
action = soap_action(public_name)
expects = info[:expects]
returns = info[:returns]
param_def = []
i = 1
if expects
expects.each do |klass|
param_name = klass.is_a?(Hash) ? klass.keys[0] : "param#{i}"
mapping = @mapper.lookup(klass)
param_def << ['in', param_name, mapping.registry_mapping]
i += 1
end
end
if returns
mapping = @mapper.lookup(returns[0])
param_def << ['retval', 'return', mapping.registry_mapping]
end
driver.add_method(qname, action, name.to_s, param_def)
end
driver
end
class SoapDriver < SOAP::RPC::Driver # :nodoc:
def add_method(qname, soapaction, name, param_def)
@proxy.add_rpc_method(qname, soapaction, name, param_def)
add_rpc_method_interface(name, param_def)
end
end
end
end
end