designate.objects.recordset

Source code for designate.objects.recordset

# Copyright (c) 2014 Rackspace Hosting
# All Rights Reserved.
#
#    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.

from copy import deepcopy

from oslo_config import cfg
from oslo_log import log
from oslo_versionedobjects import exception as ovo_exc

from designate import exceptions
from designate.objects import base
from designate.objects import fields
from designate.objects.validation_error import ValidationError
from designate.objects.validation_error import ValidationErrorList
from designate import utils


LOG = log.getLogger(__name__)

cfg.CONF.import_opt('supported_record_type', 'designate')


[docs]@base.DesignateRegistry.register class RecordSet(base.DesignateObject, base.DictObjectMixin, base.PersistentObjectMixin): def __init__(self, *args, **kwargs): super(RecordSet, self).__init__(*args, **kwargs) @property def action(self): # Return action as UPDATE if present. CREATE and DELETE are returned # if they are the only ones. action = 'NONE' actions = {'CREATE': 0, 'DELETE': 0, 'UPDATE': 0, 'NONE': 0} for record in self.records: actions[record.action] += 1 if actions['CREATE'] != 0 and actions['UPDATE'] == 0 and \ actions['DELETE'] == 0 and actions['NONE'] == 0: # noqa action = 'CREATE' elif actions['DELETE'] != 0 and actions['UPDATE'] == 0 and \ actions['CREATE'] == 0 and actions['NONE'] == 0: # noqa action = 'DELETE' elif actions['UPDATE'] != 0 or actions['CREATE'] != 0 or \ actions['DELETE'] != 0: # noqa action = 'UPDATE' return action @property def managed(self): managed = False for record in self.records: if record.managed: return True return managed @property def status(self): # Return the worst status in order of ERROR, PENDING, ACTIVE, DELETED. status = None statuses = { 'ERROR': 0, 'PENDING': 1, 'ACTIVE': 2, 'DELETED': 3, } for record in self.records: if not status or statuses[record.status] < statuses[status]: status = record.status return status or 'ACTIVE' fields = { 'shard': fields.IntegerFields(nullable=True, minimum=0, maximum=4095), 'tenant_id': fields.StringFields(nullable=True, read_only=True), 'zone_id': fields.UUIDFields(nullable=True, read_only=True), 'zone_name': fields.DomainField(nullable=True, maxLength=255), 'name': fields.HostField(maxLength=255, nullable=True), 'type': fields.StringFields(nullable=True, read_only=True), 'ttl': fields.IntegerFields(nullable=True, minimum=0, maximum=2147483647), 'description': fields.StringFields(nullable=True, maxLength=160), 'records': fields.PolymorphicObjectField('RecordList', nullable=True), } def _validate_fail(self, errors, msg): e = ValidationError() e.path = ['recordset', 'type'] e.validator = 'value' e.validator_value = [self.type] e.message = msg # Add it to the list for later errors.append(e) raise exceptions.InvalidObject( "Provided object does not match " "schema", errors=errors, object=self)
[docs] def validate(self): LOG.debug("Validating '%(name)s' object with values: %(values)r", { 'name': self.obj_name(), 'values': self.to_dict(), }) LOG.debug(list(self.records)) errors = ValidationErrorList() # Get the right classes (e.g. A for Recordsets with type: 'A') try: record_list_cls = self.obj_cls_from_name('%sList' % self.type) record_cls = self.obj_cls_from_name(self.type) except (KeyError, ovo_exc.UnsupportedObjectError): err_msg = ("'%(type)s' is not a valid record type" % {'type': self.type}) self._validate_fail(errors, err_msg) if self.type not in cfg.CONF.supported_record_type: err_msg = ("'%(type)s' is not a supported record type" % {'type': self.type}) self._validate_fail(errors, err_msg) # Get any rules that the record type imposes on the record changes = record_cls.get_recordset_schema_changes() old_fields = {} if changes: LOG.debug("Record %s is overriding the RecordSet schema with: %s", record_cls.obj_name(), changes) old_fields = deepcopy(self.FIELDS) self.FIELDS = utils.deep_dict_merge(self.FIELDS, changes) error_indexes = [] # Copy these for safekeeping old_records = deepcopy(self.records) # Blank the records for this object with the right list type self.records = record_list_cls() i = 0 for record in old_records: record_obj = record_cls() try: record_obj.from_string(record.data) # The from_string() method will throw a ValueError if there is not # enough data blobs except ValueError as e: # Something broke in the from_string() method # Fake a correct looking ValidationError() object e = ValidationError() e.path = ['records', i] e.validator = 'format' e.validator_value = [self.type] e.message = ("'%(data)s' is not a '%(type)s' Record" % {'data': record.data, 'type': self.type}) # Add it to the list for later errors.append(e) error_indexes.append(i) except TypeError as e: e = ValidationError() e.path = ['records', i] e.validator = 'format' e.validator_value = [self.type] e.message = ("'%(data)s' is not a '%(type)s' Record" % {'data': record.data, 'type': self.type}) # Add it to the list for later errors.append(e) error_indexes.append(i) except AttributeError as e: e = ValidationError() e.path = ['records', i] e.validator = 'format' e.validator_value = [self.type] e.message = ("'%(data)s' is not a '%(type)s' Record" % {'data': record.data, 'type': self.type}) # Add it to the list for later errors.append(e) error_indexes.append(i) except Exception as e: error_message = ('Provided object is not valid. Got a %s error' ' with message %s' % (type(e).__name__, str(e))) raise exceptions.InvalidObject(error_message) else: # Seems to have loaded right - add it to be validated by # JSONSchema self.records.append(record_obj) i += 1 try: # Run the actual validate code super(RecordSet, self).validate() except exceptions.InvalidObject as e: raise e else: # If JSONSchema passes, but we found parsing errors, # raise an exception if len(errors) > 0: LOG.debug( "Error Validating '%(name)s' object with values: " "%(values)r", { 'name': self.obj_name(), 'values': self.to_dict(), } ) raise exceptions.InvalidObject( "Provided object does not match " "schema", errors=errors, object=self) finally: if old_fields: self.FIELDS = old_fields # Send in the traditional Record objects to central / storage self.records = old_records
STRING_KEYS = [ 'id', 'type', 'name', 'zone_id' ]
[docs]@base.DesignateRegistry.register class RecordSetList(base.ListObjectMixin, base.DesignateObject, base.PagedListObjectMixin): LIST_ITEM_TYPE = RecordSet fields = { 'objects': fields.ListOfObjectsField('RecordSet'), }
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