| /* |
| * 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.drill.exec.rpc.user.security; |
| |
| import org.apache.drill.common.config.DrillConfig; |
| import org.apache.drill.exec.exception.DrillbitStartupException; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| |
| /** |
| * Interface to provide various username/password based implementations for authentication. |
| */ |
| public interface UserAuthenticator extends Closeable { |
| |
| /** |
| * Setup for authenticating user credentials. |
| */ |
| public void setup(DrillConfig drillConfig) throws DrillbitStartupException; |
| |
| /** |
| * Authenticate the given <i>user</i> and <i>password</i> combination. |
| * |
| * @param user |
| * @param password |
| * @throws UserAuthenticationException if authentication fails for given user and password. |
| */ |
| public void authenticate(String user, String password) throws UserAuthenticationException; |
| |
| /** |
| * Close the authenticator. Used to release resources. Ex. LDAP authenticator opens connections to LDAP server, |
| * such connections resources are released in a safe manner as part of close. |
| * |
| * @throws IOException |
| */ |
| @Override |
| void close() throws IOException; |
| } |