benchmarks/benchmark_plugin.py

#  Copyright Amazon.com, Inc. or its affiliates. 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 __future__ import annotations

from typing import TYPE_CHECKING, Any, Callable, Dict, List, Set

if TYPE_CHECKING:
    from aws_advanced_python_wrapper.driver_dialect import DriverDialect
    from aws_advanced_python_wrapper.host_list_provider import HostListProviderService
    from aws_advanced_python_wrapper.pep249 import Connection
    from aws_advanced_python_wrapper.plugin_service import PluginService
    from aws_advanced_python_wrapper.utils.properties import Properties

from aws_advanced_python_wrapper.hostinfo import HostInfo, HostRole
from aws_advanced_python_wrapper.plugin import Plugin, PluginFactory
from aws_advanced_python_wrapper.utils.notifications import (
    ConnectionEvent, HostEvent, OldConnectionSuggestedAction)


class BenchmarkPlugin(Plugin):
    _SUBSCRIBED_METHODS: Set[str] = {"*"}

    def __init__(self):
        self.resources: List[str] = []

    @property
    def subscribed_methods(self) -> Set[str]:
        return BenchmarkPlugin._SUBSCRIBED_METHODS

    def connect(
            self,
            target_driver_func: Callable,
            driver_dialect: DriverDialect,
            host_info: HostInfo,
            props: Properties,
            is_initial_connection: bool,
            connect_func: Callable) -> Connection:
        self.resources.append("connect")
        return connect_func()

    def force_connect(
            self,
            target_driver_func: Callable,
            driver_dialect: DriverDialect,
            host_info: HostInfo,
            props: Properties,
            is_initial_connection: bool,
            force_connect_func: Callable) -> Connection:
        self.resources.append("force_connect")
        return force_connect_func()

    def execute(self, target: type, method_name: str, execute_func: Callable, *args: Any, **kwargs: Any) -> Any:
        self.resources.append("execute")
        return execute_func()

    def notify_host_list_changed(self, changes: Dict[str, Set[HostEvent]]):
        self.resources.append("notify_host_list_changed")

    def notify_connection_changed(self, changes: Set[ConnectionEvent]) -> OldConnectionSuggestedAction:
        return OldConnectionSuggestedAction.NO_OPINION

    def accepts_strategy(self, role: HostRole, strategy: str) -> bool:
        return False

    def get_host_info_by_strategy(self, role: HostRole, strategy: str) -> HostInfo:
        self.resources.append("get_host_info_by_strategy")
        return HostInfo("host", 1234, role)

    def init_host_provider(
            self,
            props: Properties,
            host_list_provider_service: HostListProviderService,
            init_host_provider_func: Callable):
        self.resources.append("init_host_provider")


class BenchmarkPluginFactory(PluginFactory):
    def get_instance(self, plugin_service: PluginService, props: Properties) -> Plugin:
        return BenchmarkPlugin()