128 lines
5.2 KiB
Python
128 lines
5.2 KiB
Python
# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Ingest host topologies to define site design."""
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import logging
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import importlib
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from drydock_provisioner import error as errors
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import drydock_provisioner.objects as objects
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import drydock_provisioner.objects.site as site
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import drydock_provisioner.objects.network as network
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import drydock_provisioner.objects.hwprofile as hwprofile
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import drydock_provisioner.objects.node as node
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import drydock_provisioner.objects.hostprofile as hostprofile
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import drydock_provisioner.objects.promenade as prom
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import drydock_provisioner.objects.rack as rack
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import drydock_provisioner.objects.bootaction as bootaction
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class Ingester(object):
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def __init__(self):
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self.logger = logging.getLogger("drydock.ingester")
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self.registered_plugin = None
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def enable_plugin(self, plugin):
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"""Enable a ingester plugin for use parsing design documents.
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:params plugin: - A string naming a class object denoting the ingester plugin to be enabled
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"""
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if plugin is None or plugin == '':
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self.log.error("Cannot have an empty plugin string.")
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try:
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(module, x, classname) = plugin.rpartition('.')
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if module == '':
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raise Exception()
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mod = importlib.import_module(module)
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klass = getattr(mod, classname)
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self.registered_plugin = klass()
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except Exception as ex:
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self.logger.error(
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"Could not enable plugin %s - %s" % (plugin, str(ex)))
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if self.registered_plugin is None:
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self.logger.error("Could not enable at least one plugin")
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raise Exception("Could not enable at least one plugin")
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def ingest_data(self,
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design_state=None,
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design_ref=None,
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context=None,
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**kwargs):
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"""Execute a data ingestion of the design reference.
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Return a tuple of the processing status and a instance of objects.SiteDesign
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populated with all the processed design parts.
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:param design_state: - An instance of statemgmt.state.DrydockState
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:param design_ref: - The design reference to source design data from
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:param context: - Context of the request requesting ingestion
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:param kwargs: - Keywork arguments to pass to the ingester plugin
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"""
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if design_state is None:
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self.logger.error(
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"Ingester:ingest_data called without valid DrydockState handler"
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)
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raise ValueError("Invalid design_state handler")
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# If no design_id is specified, instantiate a new one
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if 'design_ref' is None:
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self.logger.error(
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"Ingester:ingest_data required kwarg 'design_ref' missing")
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raise ValueError(
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"Ingester:ingest_data required kwarg 'design_ref' missing")
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self.logger.debug(
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"Ingester:ingest_data ingesting design parts for design %s" %
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design_ref)
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design_blob = design_state.get_design_documents(design_ref)
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self.logger.debug(
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"Ingesting design data of %d bytes." % len(design_blob))
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try:
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status, design_items = self.registered_plugin.ingest_data(
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content=design_blob, **kwargs)
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except errors.IngesterError as vex:
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self.logger.warn(
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"Ingester:ingest_data - Unexpected error processing data - %s"
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% (str(vex)))
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return None, None
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self.logger.debug("Ingester:ingest_data parsed %s design parts" % str(
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len(design_items)))
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design_data = objects.SiteDesign()
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for m in design_items:
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if context is not None:
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m.set_create_fields(context)
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if type(m) is site.Site:
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design_data.set_site(m)
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elif type(m) is network.Network:
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design_data.add_network(m)
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elif type(m) is network.NetworkLink:
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design_data.add_network_link(m)
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elif type(m) is hostprofile.HostProfile:
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design_data.add_host_profile(m)
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elif type(m) is hwprofile.HardwareProfile:
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design_data.add_hardware_profile(m)
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elif type(m) is node.BaremetalNode:
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design_data.add_baremetal_node(m)
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elif type(m) is prom.PromenadeConfig:
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design_data.add_promenade_config(m)
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elif type(m) is rack.Rack:
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design_data.add_rack(m)
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elif type(m) is bootaction.BootAction:
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design_data.add_bootaction(m)
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return status, design_data
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