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Diffstat (limited to 'core/loader/loader.py')
-rwxr-xr-x | core/loader/loader.py | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/core/loader/loader.py b/core/loader/loader.py new file mode 100755 index 00000000..57787751 --- /dev/null +++ b/core/loader/loader.py @@ -0,0 +1,153 @@ +# Copyright 2015 Intel Corporation. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Loader module definition. +""" + +from conf import settings +from core.loader.loader_servant import LoaderServant +from tools.pkt_gen.trafficgen import ITrafficGenerator +from tools.collectors.collector import ICollector +from vswitches.vswitch import IVSwitch + +class Loader(object): + """Loader class - main object context holder. + """ + _trafficgen_loader = None + _metrics_loader = None + _vswitch_loader = None + + def __init__(self): + """Loader ctor - initialization method. + + All data is read from configuration each time Loader instance is + created. It is up to creator to maintain object life cycle if this + behavior is unwanted. + """ + self._trafficgen_loader = LoaderServant( + settings.getValue('TRAFFICGEN_DIR'), + settings.getValue('TRAFFICGEN'), + ITrafficGenerator) + + self._metrics_loader = LoaderServant( + settings.getValue('COLLECTOR_DIR'), + settings.getValue('COLLECTOR'), + ICollector) + + self._vswitch_loader = LoaderServant( + settings.getValue('VSWITCH_DIR'), + settings.getValue('VSWITCH'), + IVSwitch) + + def get_trafficgen(self): + """Returns a new instance configured traffic generator. + + :return: ITrafficGenerator implementation if available, None otherwise. + """ + return self._trafficgen_loader.get_class()() + + def get_trafficgen_class(self): + """Returns type of currently configured traffic generator. + + :return: Type of ITrafficGenerator implementation if available. + None otherwise. + """ + return self._trafficgen_loader.get_class() + + def get_trafficgens(self): + """Returns dictionary of all available traffic generators. + + :return: Dictionary of traffic generators. + - key: name of the class which implements ITrafficGenerator, + - value: Type of traffic generator which implements + ITrafficGenerator. + """ + return self._trafficgen_loader.get_classes() + + def get_trafficgens_printable(self): + """Returns all available traffic generators in printable format. + + :return: String containing printable list of traffic generators. + """ + return self._trafficgen_loader.get_classes_printable() + + def get_collector(self): + """Returns instance of currently configured collector implementation. + + :return: ICollector implementation if available, None otherwise. + """ + return self._metrics_loader.get_class()() + + def get_collector_class(self): + """Returns type of currently configured collector implementation. + + :return: Type of ICollector implementation if available. + None otherwise. + """ + return self._metrics_loader.get_class() + + def get_collectors(self): + """Returns dictionary of all available collectors. + + :return: Dictionary of collectors. + - key: name of the class which implements ICollector, + - value: Type of traffic generator which implements ICollector. + """ + return self._metrics_loader.get_classes() + + def get_collectors_printable(self): + """Returns all available collectors in printable format. + + :return: String containing printable list of collectors. + """ + return self._metrics_loader.get_classes_printable() + + def get_vswitch(self): + """Returns instance of currently configured vswitch implementation. + + :return: IVSwitch implementation if available, None otherwise. + """ + return self._vswitch_loader.get_class()() + + def get_vswitch_class(self): + """Returns type of currently configured vswitch implementation. + + :return: Type of IVSwitch implementation if available. + None otherwise. + """ + return self._vswitch_loader.get_class() + + def get_vswitches(self): + """Returns dictionary of all available vswitches. + + :return: Dictionary of vswitches. + - key: name of the class which implements IVSwitch, + - value: Type of traffic generator which implements IVSwitch. + """ + return self._vswitch_loader.get_classes() + + def get_vswitches_printable(self): + """Returns all available vswitches in printable format. + + :return: String containing printable list of vswitches. + """ + return self._vswitch_loader.get_classes_printable() + + def get_vnf_class(self): + """Returns a new instance of the configured VNF + + Currently always returns None + """ + #TODO: Load the VNF class + return None |