| /* |
| * 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.oauth; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.drill.common.AutoCloseables; |
| import org.apache.drill.exec.server.DrillbitContext; |
| |
| /** |
| * Class for managing oauth tokens. Storage plugins will have to manage obtaining the tokens, but |
| * these classes handle the storage of access and refresh tokens. |
| */ |
| public class OAuthTokenProvider implements AutoCloseable { |
| private static final String STORAGE_REGISTRY_PATH = "oauth_tokens"; |
| |
| private final DrillbitContext context; |
| |
| private PersistentTokenRegistry oauthTokenRegistry; |
| |
| public OAuthTokenProvider(DrillbitContext context) { |
| this.context = context; |
| } |
| |
| public TokenRegistry getOauthTokenRegistry(String username) { |
| if (oauthTokenRegistry == null) { |
| initRemoteRegistries(username); |
| } |
| return oauthTokenRegistry; |
| } |
| |
| private synchronized void initRemoteRegistries(String username) { |
| // Add the username to the path if present |
| String finalpath; |
| if (StringUtils.isNotEmpty(username)) { |
| finalpath = STORAGE_REGISTRY_PATH + "/" + username; |
| } else { |
| finalpath = STORAGE_REGISTRY_PATH; |
| } |
| |
| if (oauthTokenRegistry == null) { |
| oauthTokenRegistry = new PersistentTokenRegistry(context, finalpath); |
| } |
| } |
| |
| @Override |
| public void close() throws Exception { |
| AutoCloseables.closeSilently(oauthTokenRegistry); |
| } |
| } |