| /* |
| * 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 org.apache.hadoop.conf.Configuration; |
| |
| import javax.security.sasl.AuthenticationException; |
| |
| // This file is copies from org.apache.hive.service.auth.AuthenticationProviderFactory. Need to |
| // deduplicate this code. |
| /** |
| * This class helps select a {@link MetaStorePasswdAuthenticationProvider} for a given {@code |
| * AuthMethod}. |
| */ |
| public final class MetaStoreAuthenticationProviderFactory { |
| |
| public enum AuthMethods { |
| LDAP("LDAP"), |
| PAM("PAM"), |
| CUSTOM("CUSTOM"), |
| NONE("NONE"), |
| CONFIG("CONFIG"); |
| |
| private final String authMethod; |
| |
| AuthMethods(String authMethod) { |
| this.authMethod = authMethod; |
| } |
| |
| public String getAuthMethod() { |
| return authMethod; |
| } |
| |
| public static AuthMethods getValidAuthMethod(String authMethodStr) |
| throws AuthenticationException { |
| for (AuthMethods auth : AuthMethods.values()) { |
| if (authMethodStr.equals(auth.getAuthMethod())) { |
| return auth; |
| } |
| } |
| throw new AuthenticationException("Not a valid authentication method"); |
| } |
| } |
| |
| private MetaStoreAuthenticationProviderFactory() { |
| } |
| |
| public static MetaStorePasswdAuthenticationProvider getAuthenticationProvider(AuthMethods authMethod) |
| throws AuthenticationException { |
| return getAuthenticationProvider(new Configuration(), authMethod); |
| } |
| |
| public static MetaStorePasswdAuthenticationProvider getAuthenticationProvider(Configuration conf, AuthMethods authMethod) |
| throws AuthenticationException { |
| if (authMethod == AuthMethods.LDAP) { |
| return new MetaStoreLdapAuthenticationProviderImpl(conf); |
| } else if (authMethod == AuthMethods.CUSTOM) { |
| return new MetaStoreCustomAuthenticationProviderImpl(conf); |
| } else if (authMethod == AuthMethods.CONFIG) { |
| return new MetaStoreConfigAuthenticationProviderImpl(conf); |
| } else if (authMethod == AuthMethods.NONE) { |
| return new MetaStoreAnonymousAuthenticationProviderImpl(); |
| } else { |
| throw new AuthenticationException("Unsupported authentication method"); |
| } |
| } |
| } |