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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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#

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#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

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#

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#See COPYING file for copyrights details.

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#

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#This library is free software; you can redistribute it and/or

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#modify it under the terms of the GNU General Public

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#License as published by the Free Software Foundation; either

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#version 2.1 of the License, or (at your option) any later version.

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#

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#This library is distributed in the hope that it will be useful,

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#but WITHOUT ANY WARRANTY; without even the implied warranty of

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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

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#General Public License for more details.

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#

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#You should have received a copy of the GNU General Public

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#License along with this library; if not, write to the Free Software

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#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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# Package initialisation

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from os import listdir, path

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import PYRO

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_base_path = path.split(__file__)[0]

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connector_types = [name for name in listdir(_base_path)

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                        if path.isdir(path.join(_base_path, name))

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                            and name.upper() != "CVS"

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                            and not name.startswith("__")]

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# a dict from a URI scheme (connector name) to connector module

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connector_modules = {}

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# a dict from a DNS-SD service type to a connector module that support it

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dnssd_connectors = {}

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for t in connector_types:

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    new_module = getattr(__import__("connectors." + t), t)

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    connector_modules[t] = new_module

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    if hasattr(new_module, "supported_dnssd_services"):

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        for st in new_module.supported_dnssd_services:

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            dnssd_connectors[st] = new_module

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def ConnectorFactory(uri, pluginsroot):

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    """

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    Return a connector corresponding to the URI

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    or None if cannot connect to URI

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    """

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    servicetype = uri.split("://")[0]

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    if servicetype in connector_types:

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        # import module according to uri type

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        connectormodule = connector_modules[servicetype]

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        factoryname = servicetype + "_connector_factory"

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        return getattr(connectormodule, factoryname)(uri, pluginsroot)

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    elif servicetype == "LOCAL":

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        runtime_port = pluginsroot.AppFrame.StartLocalRuntime(taskbaricon=True)

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        return PYRO.PYRO_connector_factory(

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                       "PYRO://127.0.0.1:"+str(runtime_port), 

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                       pluginsroot)

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    else :

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        return None    

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