byronellis commented on code in PR #2328: URL: https://github.com/apache/polaris/pull/2328#discussion_r2271779686
########## persistence/google-cloud-spanner/src/main/java/org/apache/polaris/persistence/relational/spanner/GoogleCloudSpannerDatabaseClientLifecycleManager.java: ########## @@ -0,0 +1,145 @@ +/* + * 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.polaris.persistence.relational.spanner; + +import com.google.cloud.spanner.Database; +import com.google.cloud.spanner.DatabaseAdminClient; +import com.google.cloud.spanner.DatabaseId; +import com.google.cloud.spanner.Dialect; +import com.google.cloud.spanner.Spanner; +import com.google.cloud.spanner.SpannerException; +import com.google.common.collect.ImmutableList; +import jakarta.annotation.PostConstruct; +import jakarta.enterprise.context.ApplicationScoped; +import jakarta.enterprise.inject.Produces; +import java.io.FileInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.nio.charset.Charset; +import java.util.ArrayList; +import java.util.List; +import java.util.concurrent.ExecutionException; +import java.util.function.Consumer; +import org.apache.polaris.core.context.RealmContext; +import org.apache.polaris.core.persistence.bootstrap.SchemaOptions; +import org.apache.polaris.persistence.relational.spanner.model.Realm; +import org.apache.polaris.persistence.relational.spanner.util.SpannerUtil; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +@ApplicationScoped +public class GoogleCloudSpannerDatabaseClientLifecycleManager { + + private static Logger LOGGER = + LoggerFactory.getLogger(GoogleCloudSpannerDatabaseClientLifecycleManager.class); + + protected final GoogleCloudSpannerConfiguration spannerConfiguration; + + public GoogleCloudSpannerDatabaseClientLifecycleManager( + GoogleCloudSpannerConfiguration spannerConfiguration) { + this.spannerConfiguration = spannerConfiguration; + } + + protected Spanner spanner; + protected DatabaseId databaseId; + + @PostConstruct + protected void init() { + spanner = SpannerUtil.spannerFromConfiguration(spannerConfiguration); + databaseId = SpannerUtil.databaseFromConfiguration(spannerConfiguration); + } + + protected List<String> getSpannerDatabaseDdl(SchemaOptions options) { + final InputStream schemaStream; + if (options.schemaFile() != null) { + try { + schemaStream = new FileInputStream(options.schemaFile()); + } catch (IOException e) { + throw new IllegalArgumentException("Unable to load file " + options.schemaFile(), e); + } + } else { + if (options.schemaVersion() == null || options.schemaVersion() == 1) { + schemaStream = + getClass().getResourceAsStream("/org/apache/polaris/persistence/spanner/schema-v1.sql"); + } else { + throw new IllegalArgumentException("Unknown schema version " + options.schemaVersion()); + } + } + try (schemaStream) { + String schema = new String(schemaStream.readAllBytes(), Charset.forName("UTF-8")); + List<String> lines = new ArrayList<>(); + for (String s : schema.split("\n")) { + s = s.trim(); + if (s.startsWith("--") || s.length() == 0) { + continue; + } + lines.add(s); + } + return List.of(String.join(" ", lines).split(";")); + } catch (IOException e) { + throw new RuntimeException("Unable to retrieve DDL statements", e); + } + } + + @Produces + public SchemaInitializer getSchemaInitializer() { + return (options) -> { + List<String> ddlStatements = getSpannerDatabaseDdl(options); + LOGGER.info( + "Attempting to initialize Spanner database DDL with {} statements,", + ddlStatements.size()); + DatabaseAdminClient client = spanner.getDatabaseAdminClient(); + Database dbInfo = + client.newDatabaseBuilder(databaseId).setDialect(Dialect.GOOGLE_STANDARD_SQL).build(); + try { + spanner.getDatabaseAdminClient().updateDatabaseDdl(dbInfo, ddlStatements, null).get(); + LOGGER.info("Successfully applied DDL update."); + } catch (InterruptedException | ExecutionException e) { + LOGGER.error("Unable to update Spanner DDL.", e); + throw new RuntimeException( + "Unable to update Spanner DDL. Please disable this option for this database configuration.", + e); + } + }; + } + + @Produces + public Consumer<RealmContext> getRealmInitializer() { + return (realmContext) -> { + try { + spanner + .getDatabaseClient(databaseId) + .write(ImmutableList.of(Realm.upsert(realmContext.getRealmIdentifier()))); Review Comment: Fair enough, moving this to the bootstrap code. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@polaris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
