| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| package backtype.storm.security; |
| |
| import backtype.storm.daemon.Shutdownable; |
| |
| import java.util.Map; |
| |
| /** |
| * Nimbus auto credential plugin that will be called on nimbus host |
| * during submit topology option. User can specify a list of implementation using config key |
| * nimbus.autocredential.plugins.classes. |
| */ |
| public interface INimbusCredentialPlugin extends Shutdownable { |
| |
| /** |
| * this method will be called when nimbus initializes. |
| * @param conf |
| */ |
| void prepare(Map conf); |
| |
| /** |
| * Method that will be called on nimbus as part of submit topology. This plugin will be called |
| * at least once during the submit Topology action. It will be not be called during activate instead |
| * the credentials return by this method will be merged with the other credentials in the topology |
| * and stored in zookeeper. |
| * @param credentials credentials map where more credentials will be added. |
| * @param conf topology configuration |
| */ |
| void populateCredentials(Map<String, String> credentials, Map conf); |
| } |