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,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.hadoop.hdfs.web.oauth2;
020
021import com.squareup.okhttp.MediaType;
022import org.apache.hadoop.classification.InterfaceAudience;
023import org.apache.hadoop.classification.InterfaceStability;
024
025/**
026 * Sundry constants relating to OAuth2 within WebHDFS.
027 */
028@InterfaceAudience.Public
029@InterfaceStability.Evolving
030public final class OAuth2Constants {
031  private OAuth2Constants() { /** Private constructor. **/ }
032
033  public static final MediaType URLENCODED
034      = MediaType.parse("application/x-www-form-urlencoded; charset=utf-8");
035
036  /* Constants for OAuth protocol */
037  public static final String ACCESS_TOKEN = "access_token";
038  public static final String BEARER = "bearer";
039  public static final String CLIENT_CREDENTIALS = "client_credentials";
040  public static final String CLIENT_ID = "client_id";
041  public static final String CLIENT_SECRET = "client_secret";
042  public static final String EXPIRES_IN = "expires_in";
043  public static final String GRANT_TYPE = "grant_type";
044  public static final String REFRESH_TOKEN = "refresh_token";
045  public static final String TOKEN_TYPE = "token_type";
046}