# pipeline.py - Pipeline Pilot proxy
#
# Build a Pipeline Pilot Proxy (PPProxy) that initializes 
# a SOAPpy Proxy to connect to a given server and port.
# All calls are wrapped so that the request xml namespace 
# can be reset before each method call. 
#
# (C) Optibrium Ltd 2011
# stardrop-support@optibrium.com
#

import SOAPpy



class Method:
  '''Dispatch up to clazz after applying a before function'''
  def __init__(self, proxy, name, clazz, before):
    self.proxy = proxy
    self.name = name
    self.clazz = clazz
    self.before = before

  def __call__(self, *a, **ka):
    self.before()
    m = self.clazz.__getattr__(self.proxy, self.name)
    return m.__call__(self.name, *a, **ka)

class PPProxy(SOAPpy.SOAPProxy):
  '''A SOAP proxy for communicating with a Pipeline Pilot server'''
  def __init__(self, server, port):
    if server.startswith("http"):
      url = server + ":" + str(port) + "/scitegic/soap"
    else:
      url = "http://" + server + ":" + str(port) + "/scitegic/soap"
    self.namespace2 = "http://scitegic.com/soap"
    SOAPpy.SOAPProxy.__init__(self, url)

  def resetNS(self):
    self.namespace = self.namespace2

  def __getattr__(self, name):
    return Method(self, name, SOAPpy.SOAPProxy, self.resetNS)


class ParameterStringValue:
 '''Pipeline Pilot ParameterStringValue type which
    encodes a "value" list of strings under a "name"'''
 def __init__(self, name, values):
   self.name = name
   self.value = values