feat(web/api): Initial API implementation in Kotlin

This change adds the initial implementation of the new API server in Kotlin,
replacing the old API written in Python. The implementation uses Quarkus,
RESTEasy, and Hibernate to implement the new API endpoints.

The reason for replacing the old API server is unifying the build and
deployment toolchains, reducing the number of technologies necessary to
work with OpenDC. Furthermore, we envision bundling the entire OpenDC
project into a single distributions, allowing users to launch their own
deployment trivially.

1 files changed, 0 insertions, 97 deletions

diff --git a/opendc-web/opendc-web-api/opendc/database.py b/opendc-web/opendc-web-api/opendc/database.py
deleted file mode 100644
index dd6367f2..00000000
--- a/opendc-web/opendc-web-api/opendc/database.py
+++ /dev/null
@@ -1,97 +0,0 @@
-#  Copyright (c) 2021 AtLarge Research
-#
-#  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.
-
-import urllib.parse
-
-from pymongo import MongoClient, ReturnDocument
-
-DATETIME_STRING_FORMAT = '%Y-%m-%dT%H:%M:%S'
-CONNECTION_POOL = None
-
-
-class Database:
-    """Object holding functionality for database access."""
-    def __init__(self, db=None):
-        """Initializes the database connection."""
-        self.opendc_db = db
-
-    @classmethod
-    def from_credentials(cls, user, password, database, host):
-        """
-        Construct a database instance from the specified credentials.
-        :param user: The username to connect with.
-        :param password: The password to connect with.
-        :param database: The database name to connect to.
-        :param host: The host to connect to.
-        :return: The database instance.
-        """
-        user = urllib.parse.quote_plus(user)
-        password = urllib.parse.quote_plus(password)
-        database = urllib.parse.quote_plus(database)
-        host = urllib.parse.quote_plus(host)
-
-        client = MongoClient('mongodb://%s:%s@%s/default_db?authSource=%s' % (user, password, host, database))
-        return cls(client.opendc)
-
-    def fetch_one(self, query, collection):
-        """Uses existing mongo connection to return a single (the first) document in a collection matching the given
-        query as a JSON object.
-
-        The query needs to be in json format, i.e.: `{'name': prefab_name}`.
-        """
-        return getattr(self.opendc_db, collection).find_one(query)
-
-    def fetch_all(self, query, collection):
-        """Uses existing mongo connection to return all documents matching a given query, as a list of JSON objects.
-
-        The query needs to be in json format, i.e.: `{'name': prefab_name}`.
-        """
-        cursor = getattr(self.opendc_db, collection).find(query)
-        return list(cursor)
-
-    def insert(self, obj, collection):
-        """Updates an existing object."""
-        bson = getattr(self.opendc_db, collection).insert(obj)
-
-        return bson
-
-    def update(self, _id, obj, collection):
-        """Updates an existing object."""
-        return getattr(self.opendc_db, collection).update({'_id': _id}, obj)
-
-    def fetch_and_update(self, query, update, collection):
-        """Updates an existing object."""
-        return getattr(self.opendc_db, collection).find_one_and_update(query,
-                                                                       update,
-                                                                       return_document=ReturnDocument.AFTER)
-
-    def delete_one(self, query, collection):
-        """Deletes one object matching the given query.
-
-        The query needs to be in json format, i.e.: `{'name': prefab_name}`.
-        """
-        getattr(self.opendc_db, collection).delete_one(query)
-
-    def delete_all(self, query, collection):
-        """Deletes all objects matching the given query.
-
-        The query needs to be in json format, i.e.: `{'name': prefab_name}`.
-        """
-        getattr(self.opendc_db, collection).delete_many(query)