| /** |
| * 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 org.apache.storm.security.auth; |
| |
| import java.util.Map; |
| |
| /** |
| * Nimbus could be configured with an authorization plugin. If not specified, all requests are authorized. |
| * |
| * <p>You could specify the authorization plugin via storm parameter. For example: |
| * |
| * <p>``` storm -c nimbus.authorization.class=org.apache.storm.security.auth.NoopAuthorizer ... ``` |
| * |
| * <p>You could also specify it via storm.yaml: |
| * |
| * <p>```yaml nimbus.authorization.class: org.apache.storm.security.auth.NoopAuthorizer ``` |
| */ |
| public interface IAuthorizer { |
| /** |
| * Invoked once immediately after construction. |
| * |
| * @param conf Storm cluster configuration |
| */ |
| void prepare(Map<String, Object> conf); |
| |
| /** |
| * permit() method is invoked for each incoming Thrift request. |
| * |
| * @param context request context includes info about |
| * @param operation operation name |
| * @param topoConf configuration of targeted topology |
| * @return true if the request is authorized, false if reject |
| */ |
| boolean permit(ReqContext context, String operation, Map<String, Object> topoConf); |
| } |