| /* |
| * 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 java.lang.reflect.InvocationTargetException; |
| |
| import javax.security.sasl.AuthenticationException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hive.metastore.api.MetaException; |
| import org.apache.hadoop.hive.metastore.conf.MetastoreConf; |
| import org.apache.hadoop.hive.metastore.utils.JavaUtils; |
| import org.apache.hadoop.util.ReflectionUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * This authentication provider implements the {@code CUSTOM} authentication. It allows a {@link |
| * MetaStorePasswdAuthenticationProvider} to be specified at configuration time which may |
| * additionally |
| * implement {@link org.apache.hadoop.conf.Configurable Configurable} to grab Metastore's {@link |
| * org.apache.hadoop.conf.Configuration Configuration}. |
| */ |
| // This file is copy of org.apache.hive.service.auth.AuthenticationProviderFactory. Need to |
| // deduplicate this code. |
| public class MetaStoreCustomAuthenticationProviderImpl implements MetaStorePasswdAuthenticationProvider { |
| private final MetaStorePasswdAuthenticationProvider customProvider; |
| protected static final Logger LOG = LoggerFactory.getLogger(MetaStoreCustomAuthenticationProviderImpl.class); |
| |
| @SuppressWarnings("unchecked") |
| MetaStoreCustomAuthenticationProviderImpl(Configuration conf) throws AuthenticationException { |
| String customProviderName = MetastoreConf.getVar(conf, |
| MetastoreConf.ConfVars.METASTORE_CUSTOM_AUTHENTICATION_CLASS); |
| Class<? extends MetaStorePasswdAuthenticationProvider> customHandlerClass; |
| try { |
| customHandlerClass = JavaUtils.getClass(customProviderName, |
| MetaStorePasswdAuthenticationProvider.class); |
| } catch (MetaException me) { |
| throw new AuthenticationException(me.getMessage()); |
| } |
| MetaStorePasswdAuthenticationProvider customProvider; |
| try { |
| customProvider = customHandlerClass.getConstructor(Configuration.class).newInstance(conf); |
| } catch (NoSuchMethodException | InstantiationException | IllegalAccessException | InvocationTargetException e) { |
| customProvider = ReflectionUtils.newInstance(customHandlerClass, conf); |
| } |
| this.customProvider = customProvider; |
| } |
| |
| @Override |
| public void authenticate(String user, String password) throws AuthenticationException { |
| customProvider.authenticate(user, password); |
| } |
| |
| } |