import sys
import os

if sys.platform=="darwin":
    import pyGlobus.ioc

from AccessGrid.ServiceCapability import ServiceCapability
from AccessGrid.AGNetworkService import AGNetworkService
from AccessGrid.Platform.ProcessManager import ProcessManager
from AccessGrid.Descriptions import StreamDescription
from AccessGrid.NetworkLocation import MulticastNetworkLocation

class DebugNetworkService(AGNetworkService):

    def __init__(self, name):
        AGNetworkService.__init__(self, name, 'Debug', '1.0')

        # Create capabilities
        inCap = "Add your in capabilities here"
        outCap = "Add your out capabilities here"

        self.inCapabilities = [inCap.ToXML()]
        self.outCapabilities = [outCap.ToXML()]

        print '\nnetwork service soap interface started'
        # Start the soap interface
        self.Start(self)

    def StopTransform(self, streamList):
        # Stop debug service
        print 'transform stopped'
        
    def Transform(self, streamList):
        # Start debug service
        newStreams = []

        print 'transform started'
        
        for s in streamList:
            # Create new stream description

            # Capability of new stream will be the
            # same as the out capabilities of the network
            # service
            cap = s.capability
            cap.xml = self.outCapabilities[0]
            
            # Create new stream description
            location = MulticastNetworkLocation("224.2.2.2", 8000)
            ns = StreamDescription("Debug Stream", location, cap)
            newStreams.append(ns)
                                              
        return newStreams
            
if __name__ == "__main__":
    import sys
    
    debug = DebugNetworkService("Debug Service")

    # The service will automatically register with the venue
    # given on the command line
    url = debug.app.GetOption('venueUrl')
    if not url:
        print "Please enter venue url on the command line; --venueUrl <url>"
        sys.exit()
 
    debug.StartSignalLoop()