data_catalog/elastic_admin.py
#
# Copyright (c) 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.
#
"""
Endpoint for administrative tasks on Data Catalog and its data.
"""
import flask
from elasticsearch import Elasticsearch
from elasticsearch.exceptions import RequestError, ConnectionError
from data_catalog.bases import DataCatalogResource
from data_catalog.metadata_entry import MetadataIndexingTransformer, InvalidEntryError
class ElasticSearchAdminResource(DataCatalogResource):
"""
Contains REST endpoint for managing elastic search data
"""
def __init__(self):
super(ElasticSearchAdminResource, self).__init__()
self._elastic_search = Elasticsearch(
'{}:{}'.format(self._config.elastic.elastic_hostname,
self._config.elastic.elastic_port))
self._parser = MetadataIndexingTransformer()
def delete(self):
"""
Delete elastic search index
"""
self._log.info('Deleting the ElasticSearch index.')
if not flask.g.is_admin:
self._log.warn('Deleting index aborted, not enough privileges (admin required)')
return None, 403
# pylint: disable=unexpected-keyword-arg
self._elastic_search.indices.delete(
self._config.elastic.elastic_index,
ignore=404)
def put(self):
"""
Add all data into elastic search. Data that are corrupted are ommited
"""
self._log.info("Adding data to elastic search")
if not flask.g.is_admin:
self._log.warn('Inserting data aborted, not enough privileges (admin required)')
return None, 403
data = flask.request.get_json(force=True)
try:
for entry in data:
try:
self._parser.transform(entry)
self._elastic_search.index(
index=self._config.elastic.elastic_index,
doc_type=self._config.elastic.elastic_metadata_type,
id=entry["id"],
body=entry
)
except InvalidEntryError as ex:
self._log.exception(ex)
except RequestError:
self._log.exception("Malformed data")
return None, 400
except ConnectionError:
self._log.exception("Failed connection to ElasticSearch")
return None, 503
self._log.info("Data added")
return None, 200