001 /** 002 * Copyright (c) 2010 Yahoo! Inc. All rights reserved. 003 * Licensed under the Apache License, Version 2.0 (the "License"); 004 * you may not use this file except in compliance with the License. 005 * You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software 010 * distributed under the License is distributed on an "AS IS" BASIS, 011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 * See the License for the specific language governing permissions and 013 * limitations under the License. See accompanying LICENSE file. 014 */ 015 package org.apache.oozie.action.hadoop; 016 017 import org.apache.hadoop.mapred.JobConf; 018 import org.apache.oozie.action.ActionExecutor.Context; 019 020 @SuppressWarnings("deprecation") 021 public abstract class Credentials { 022 023 /** 024 * This is the interface for all the Credentials implementation. Any new credential implementaion must implement 025 * this function. This function should modify the jobconf which will be used further to pass the credentials to the 026 * tasks while running it. Credentials properties and context is also provided by that user can get all the 027 * necessary configuration. 028 * 029 * @param jobconf job conf where the token will insert into 030 * @param props properties for getting credential token or certificate 031 * @param context workflow context 032 * @throws Exception thrown if failed 033 */ 034 public abstract void addtoJobConf(JobConf jobconf, CredentialsProperties props, Context context) throws Exception; 035 }