| // Copyright (C) 2023 The Android Open Source Project |
| // |
| // Licensed 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 com.googlesource.gerrit.plugins.spannerrefdb; |
| |
| import com.google.api.client.util.Strings; |
| import com.google.auth.oauth2.GoogleCredentials; |
| import com.google.cloud.spanner.Database; |
| import com.google.cloud.spanner.DatabaseAdminClient; |
| import com.google.cloud.spanner.DatabaseClient; |
| import com.google.cloud.spanner.DatabaseId; |
| import com.google.cloud.spanner.DatabaseNotFoundException; |
| import com.google.cloud.spanner.KeySet; |
| import com.google.cloud.spanner.Mutation; |
| import com.google.cloud.spanner.SpannerOptions; |
| import java.io.FileInputStream; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.ScheduledThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| |
| public class RealSpannerRefDb extends SpannerTestSystem { |
| |
| private static RealSpannerRefDb INSTANCE; |
| |
| public static RealSpannerRefDb create() { |
| if (INSTANCE == null) { |
| String keyPath = System.getenv("GOOGLE_APPLICATION_CREDENTIALS"); |
| String instance = System.getenv("SPANNER_INSTANCE"); |
| String database = System.getenv("SPANNER_DATABASE"); |
| if (Strings.isNullOrEmpty(database)) { |
| INSTANCE = new RealSpannerRefDb(keyPath, instance); |
| } else { |
| INSTANCE = new RealSpannerRefDb(keyPath, instance, database); |
| } |
| } |
| return INSTANCE; |
| } |
| |
| private final String keyPath; |
| private final String instance; |
| private final String dbName; |
| private final boolean dropDbOnShutdown; |
| |
| private boolean dbInitialized; |
| private SpannerRefDatabase refdb; |
| private DatabaseClient dbClient; |
| private ScheduledThreadPoolExecutor heartbeatExecutor; |
| |
| private RealSpannerRefDb(String keyPath, String instance) { |
| this(keyPath, instance, "global-refdb-" + System.currentTimeMillis(), true); |
| } |
| |
| private RealSpannerRefDb(String keyPath, String instance, String dbName) { |
| this(keyPath, instance, dbName, false); |
| } |
| |
| private RealSpannerRefDb( |
| String keyPath, String instance, String dbName, boolean dropDbOnShutdown) { |
| this.keyPath = keyPath; |
| this.instance = instance; |
| this.dbName = dbName; |
| this.dropDbOnShutdown = dropDbOnShutdown; |
| } |
| |
| @Override |
| public void reset() throws Exception { |
| if (!dbInitialized) { |
| initialize(); |
| dbInitialized = true; |
| } |
| deleteAllData(); |
| } |
| |
| @Override |
| SpannerRefDatabase database() { |
| return refdb; |
| } |
| |
| @Override |
| DatabaseClient dbClient() { |
| return dbClient; |
| } |
| |
| @Override |
| ScheduledThreadPoolExecutor heartbeatExecutor() { |
| return heartbeatExecutor; |
| } |
| |
| @Override |
| void cleanup() { |
| // do nothing |
| } |
| |
| private void initialize() throws Exception { |
| |
| GoogleCredentials credentials = GoogleCredentials.fromStream(new FileInputStream(keyPath)); |
| |
| SpannerOptions options = SpannerOptions.newBuilder().setCredentials(credentials).build(); |
| DatabaseId dbId = DatabaseId.of(options.getProjectId(), instance, dbName); |
| DatabaseAdminClient dbAdminClient = options.getService().getDatabaseAdminClient(); |
| |
| Database database; |
| try { |
| database = dbAdminClient.getDatabase(dbId.getInstanceId().getInstance(), dbId.getDatabase()); |
| } catch (DatabaseNotFoundException e) { |
| // create new database and schema |
| database = |
| dbAdminClient |
| .createDatabase(dbId.getInstanceId().getInstance(), dbId.getDatabase(), List.of()) |
| .get(); |
| DatabaseSchemaCreator databaseSchemaCreator = new DatabaseSchemaCreator(dbAdminClient, dbId); |
| databaseSchemaCreator.start(); |
| } |
| |
| if (dropDbOnShutdown) { |
| Database toBeDropped = database; |
| Runtime.getRuntime() |
| .addShutdownHook( |
| new Thread( |
| () -> { |
| toBeDropped.drop(); |
| })); |
| } |
| |
| dbClient = options.getService().getDatabaseClient(dbId); |
| |
| heartbeatExecutor = createHeartbeatExecutor(); |
| |
| Lock.Factory lockFactory = |
| new Lock.Factory() { |
| @Override |
| public Lock create(String projectName, String refName) { |
| return new Lock(dbClient, "", heartbeatExecutor, projectName, refName); |
| } |
| }; |
| refdb = new SpannerRefDatabase(dbClient, lockFactory); |
| } |
| |
| private void deleteAllData() { |
| List<Mutation> mutations = new ArrayList<>(); |
| mutations.add(Mutation.delete("refs", KeySet.all())); |
| mutations.add(Mutation.delete("locks", KeySet.all())); |
| dbClient.write(mutations); |
| } |
| |
| private ScheduledThreadPoolExecutor createHeartbeatExecutor() { |
| ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(2); |
| Runtime.getRuntime() |
| .addShutdownHook( |
| new Thread( |
| () -> { |
| heartbeatExecutor.shutdownNow(); |
| try { |
| heartbeatExecutor.awaitTermination(Long.MAX_VALUE, TimeUnit.SECONDS); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| })); |
| return executor; |
| } |
| } |