| /* |
| * 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.hadoop.hive.metastore; |
| |
| import javax.security.sasl.AuthenticationException; |
| |
| public interface MetaStorePasswdAuthenticationProvider { |
| |
| /** |
| * The Authenticate method is called by the HiveServer2 authentication layer |
| * to authenticate users for their requests. |
| * If a user is to be granted, return nothing/throw nothing. |
| * When a user is to be disallowed, throw an appropriate {@link AuthenticationException}. |
| * <br> |
| * For an example implementation, see {@link MetaStoreLdapAuthenticationProviderImpl}. |
| * |
| * @param user The username received over the connection request |
| * @param password The password received over the connection request |
| * |
| * @throws AuthenticationException When a user is found to be |
| * invalid by the implementation |
| */ |
| void authenticate(String user, String password) throws AuthenticationException; |
| } |
