###############################################################################
# Copyright (c) 2017, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory
# Written by <NAME>, <EMAIL>.
#
# LLNL-CODE-734340
# All rights reserved.
# This file is part of MaestroWF, Version: 1.0.0.
#
# For details, see https://github.com/LLNL/maestrowf.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
###############################################################################

"""Collection of custom adapters for interfacing with various systems."""
import logging
import pkgutil
import inspect
from maestrowf.abstracts.interfaces import ScriptAdapter


__all__ = ("ScriptAdapterFactory",)
LOGGER = logging.getLogger(__name__)


def iter_adapters():
    """
    Based off of packaging.python.org loop over a namespace and find the
    modules. This has been adapted for this particular use case of loading
    all classes implementing ScriptAdapter loaded from all modules in
    maestrowf.interfaces.script.
    :return: an iterable of the classes existing in the namespace
    """
    # get loader for the script adapter package
    loader = pkgutil.get_loader('maestrowf.interfaces.script')
    # get all of the modules in the package
    mods = [(name, ispkg) for finder, name, ispkg in pkgutil.iter_modules(
            loader.load_module('maestrowf.interfaces.script').__path__,
            loader.load_module('maestrowf.interfaces.script').__name__ + ".")]
    cs = []
    for name, _ in mods:
        # get loader for every module
        m = pkgutil.get_loader(name).load_module(name)
        # get all classes that implement ScriptAdapter and are not abstract
        for n, cls in m.__dict__.items():
            if isinstance(cls, type) and issubclass(cls, ScriptAdapter) and \
                    not inspect.isabstract(cls):
                cs.append(cls)

    return cs


class ScriptAdapterFactory(object):
    factories = {
       adapter.key: adapter for adapter in iter_adapters()
    }

    @classmethod
    def get_adapter(cls, adapter_id):
        if adapter_id.lower() not in cls.factories:
            msg = "Adapter '{0}' not found. Specify an adapter that exists " \
                  "or implement a new one mapping to the '{0}'" \
                  .format(str(adapter_id))
            LOGGER.error(msg)
            raise Exception(msg)

        return cls.factories[adapter_id]

    @classmethod
    def get_valid_adapters(cls):
        return cls.factories.keys()

###############################################################################
# Copyright (c) 2017, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory
# Written by <NAME>, <EMAIL>.
#
# LLNL-CODE-734340
# All rights reserved.
# This file is part of MaestroWF, Version: 1.0.0.
#
# For details, see https://github.com/LLNL/maestrowf.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
###############################################################################

"""Collection of custom adapters for interfacing with various systems."""
import logging
import pkgutil
import inspect
from maestrowf.abstracts.interfaces import ScriptAdapter


__all__ = ("ScriptAdapterFactory",)
LOGGER = logging.getLogger(__name__)


def iter_adapters():
    """
    Based off of packaging.python.org loop over a namespace and find the
    modules. This has been adapted for this particular use case of loading
    all classes implementing ScriptAdapter loaded from all modules in
    maestrowf.interfaces.script.
    :return: an iterable of the classes existing in the namespace
    """
    # get loader for the script adapter package
    loader = pkgutil.get_loader('maestrowf.interfaces.script')
    # get all of the modules in the package
    mods = [(name, ispkg) for finder, name, ispkg in pkgutil.iter_modules(
            loader.load_module('maestrowf.interfaces.script').__path__,
            loader.load_module('maestrowf.interfaces.script').__name__ + ".")]
    cs = []
    for name, _ in mods:
        # get loader for every module
        m = pkgutil.get_loader(name).load_module(name)
        # get all classes that implement ScriptAdapter and are not abstract
        for n, cls in m.__dict__.items():
            if isinstance(cls, type) and issubclass(cls, ScriptAdapter) and \
                    not inspect.isabstract(cls):
                cs.append(cls)

    return cs


class ScriptAdapterFactory(object):
    factories = {
       adapter.key: adapter for adapter in iter_adapters()
    }

    @classmethod
    def get_adapter(cls, adapter_id):
        if adapter_id.lower() not in cls.factories:
            msg = "Adapter '{0}' not found. Specify an adapter that exists " \
                  "or implement a new one mapping to the '{0}'" \
                  .format(str(adapter_id))
            LOGGER.error(msg)
            raise Exception(msg)

        return cls.factories[adapter_id]

    @classmethod
    def get_valid_adapters(cls):
        return cls.factories.keys()

############################################################################### # Copyright (c) 2017, Lawrence Livermore National Security, LLC. # Produced at the Lawrence Livermore National Laboratory # Written by <NAME>, <EMAIL>. # # LLNL-CODE-734340 # All rights reserved. # This file is part of MaestroWF, Version: 1.0.0. # # For details, see https://github.com/LLNL/maestrowf. # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. ############################################################################### Collection of custom adapters for interfacing with various systems. Based off of packaging.python.org loop over a namespace and find the     modules. This has been adapted for this particular use case of loading     all classes implementing ScriptAdapter loaded from all modules in     maestrowf.interfaces.script.     :return: an iterable of the classes existing in the namespace # get loader for the script adapter package # get all of the modules in the package # get loader for every module # get all classes that implement ScriptAdapter and are not abstract