#!/usr/bin/python

#

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"""

Initialize the linked image module.  Consumers of linked image functionality

should never import anything other than pkg".client.linkedimage".  Here we'll

import everything in linkedimage/common.py into our namespace (since that's

where most of our code lives.) We'll also hard code which linked image plugin

modules are supported below.

"""

# standard python classes

import inspect

import os

# import linked image common code

# W0401 Wildcard import

# W0403 Relative import

from common import * # pylint: disable-msg=W0401,W0403

# names of linked image plugins

p_types = [ "zone", "system" ]

# map of plugin names to their associated LinkedImagePlugin derived class

p_classes = {}

# map of plugin names to their associated LinkedImageChildPlugin derived class

p_classes_child = {}

# initialize temporary variables

_modname = _module = _nvlist = _classes = _i = None

# initialize p_classes and p_classes_child

for _modname in p_types:

        _module = __import__("%s.%s" % (__name__, _modname),

            globals(), locals(), [_modname])

        # Find all the classes actually defined in this module.

        _nvlist = inspect.getmembers(_module, inspect.isclass)

        _classes = [

            _i[1]

            for _i in _nvlist

            if _i[1].__module__ == ("%s.%s" % (__name__, _modname))

        ]

        for _i in _classes:

                if LinkedImagePlugin in inspect.getmro(_i):

                        p_classes[_modname] = _i

                elif LinkedImageChildPlugin in inspect.getmro(_i):

                        p_classes_child[_modname] = _i

                else:

                        raise RuntimeError("""

Invalid linked image plugin class '%s' for plugin '%s'""" %

                             (_i.__name__, _modname))

# Clean up temporary variables

del _modname, _module, _nvlist, _classes, _i