001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.oozie.action.hadoop; 019 020 import org.apache.hadoop.mapred.JobConf; 021 import org.apache.oozie.action.ActionExecutor.Context; 022 023 @SuppressWarnings("deprecation") 024 public abstract class Credentials { 025 026 /** 027 * This is the interface for all the Credentials implementation. Any new credential implementaion must implement 028 * this function. This function should modify the jobconf which will be used further to pass the credentials to the 029 * tasks while running it. Credentials properties and context is also provided by that user can get all the 030 * necessary configuration. 031 * 032 * @param jobconf job conf where the token will insert into 033 * @param props properties for getting credential token or certificate 034 * @param context workflow context 035 * @throws Exception thrown if failed 036 */ 037 public abstract void addtoJobConf(JobConf jobconf, CredentialsProperties props, Context context) throws Exception; 038 }