#
# Service facade for gnuviech-admin tool backend
# (c) 2006 Jan Dittberner <jan@dittberner.info>
# $Id$
#
from SessionManager import *
from DomainManager import *

class ServiceFacade:
    def __init__(self):
        self.sessionManager = SessionManager()
        self.domainManager = DomainManager()
    """
    This class implements the facade to the services provided by the
    gnuviech admin backend.
    """
    def login(self, login, password):
        """
        Logs in the user specified by the given login and password.
        The method creates a session and returns the session id which
        has to be sent back by subsequent requests. If the login is
        invalid the returned id is 0
        """
        try:
            return self.sessionManager.newSession(login, password)
        except InvalidLoginError, ile:
            return 0

    def listdomains(self, sessionid):
        """
        Lists the domains the given session may see.
        """
        try:
            session = self.sessionManager.getSession(sessionid)
            return self.domainManager.listDomains(session)
        except InvalidSessionError, ise:
            return ""