| /** |
| * 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.oozie.action.hadoop; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.security.Credentials; |
| import org.apache.oozie.action.ActionExecutor.Context; |
| |
| public interface CredentialsProvider { |
| |
| /** |
| * This is the interface for all the Credentials implementation. Any new credential implementation must implement |
| * this function. This function should modify the configuration which will be used further to pass the credentials to the |
| * tasks while running it. Credentials properties and context is also provided by that user can get all the |
| * necessary configuration. |
| * |
| * @param credentials the credentials object which is updated |
| * @param config launcher AM configuration |
| * @param props properties for getting credential token or certificate |
| * @param context workflow context |
| * @throws Exception thrown if failed |
| * |
| */ |
| public void updateCredentials(Credentials credentials, Configuration config, CredentialsProperties props, Context context) |
| throws Exception; |
| } |