/**
* 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.auth;
import java.util.Collection;
import java.util.Map;
/**
* Provides a way to renew credentials on behelf of a user.
*/
public interface ICredentialsRenewer {
/**
* Called when initializing the service.
*
* @param conf the storm cluster configuration.
*/
public void prepare(Map conf);
/**
* Renew any credentials that need to be renewed. (Update the credentials if needed)
*
* @param credentials the credentials that may have something to renew.
* @param topologyConf topology configuration.
*/
public void renew(Map<String, String> credentials, Map topologyConf);
}