denis-chudov commented on code in PR #778: URL: https://github.com/apache/ignite-3/pull/778#discussion_r876847148
########## modules/schema/src/main/java/org/apache/ignite/internal/schema/SchemaManager.java: ########## @@ -0,0 +1,374 @@ +/* + * 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.ignite.internal.schema; + +import static java.util.concurrent.CompletableFuture.completedFuture; +import static java.util.concurrent.CompletableFuture.failedFuture; +import static org.apache.ignite.internal.configuration.util.ConfigurationUtil.directProxy; +import static org.apache.ignite.internal.configuration.util.ConfigurationUtil.getByInternalId; + +import java.util.HashMap; +import java.util.Map; +import java.util.NoSuchElementException; +import java.util.UUID; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.function.Consumer; +import java.util.function.Function; +import org.apache.ignite.configuration.NamedListView; +import org.apache.ignite.configuration.notifications.ConfigurationNamedListListener; +import org.apache.ignite.configuration.notifications.ConfigurationNotificationEvent; +import org.apache.ignite.configuration.schemas.table.TablesConfiguration; +import org.apache.ignite.internal.causality.VersionedValue; +import org.apache.ignite.internal.configuration.schema.ExtendedTableConfiguration; +import org.apache.ignite.internal.configuration.schema.SchemaConfiguration; +import org.apache.ignite.internal.configuration.schema.SchemaView; +import org.apache.ignite.internal.manager.EventListener; +import org.apache.ignite.internal.manager.IgniteComponent; +import org.apache.ignite.internal.manager.Producer; +import org.apache.ignite.internal.schema.event.SchemaEvent; +import org.apache.ignite.internal.schema.event.SchemaEventParameters; +import org.apache.ignite.internal.schema.marshaller.schema.SchemaSerializerImpl; +import org.apache.ignite.internal.schema.registry.SchemaRegistryImpl; +import org.apache.ignite.internal.util.IgniteSpinBusyLock; +import org.apache.ignite.lang.IgniteException; +import org.apache.ignite.lang.IgniteInternalException; +import org.apache.ignite.lang.IgniteStringFormatter; +import org.apache.ignite.lang.NodeStoppingException; +import org.jetbrains.annotations.NotNull; +import org.jetbrains.annotations.Nullable; + +/** + * The class services a management of table schemas. + */ +public class SchemaManager extends Producer<SchemaEvent, SchemaEventParameters> implements IgniteComponent { + /** Initial version for schemas. */ + public static final int INITIAL_SCHEMA_VERSION = 1; + + /** Busy lock to stop synchronously. */ + private final IgniteSpinBusyLock busyLock = new IgniteSpinBusyLock(); + + /** Prevents double stopping the component. */ + private final AtomicBoolean stopGuard = new AtomicBoolean(); + + /** Tables configuration. */ + private final TablesConfiguration tablesCfg; + + /** Versioned store for tables by name. */ + private final VersionedValue<Map<UUID, SchemaRegistryImpl>> registriesVv; + + /** Constructor. */ + public SchemaManager(Consumer<Function<Long, CompletableFuture<?>>> registry, TablesConfiguration tablesCfg) { + this.registriesVv = new VersionedValue<>(registry, HashMap::new); + + this.tablesCfg = tablesCfg; + + registriesVv.whenComplete((token, registries, e) -> { + fireEvent(SchemaEvent.COMPLETE, new SchemaEventParameters(token, null, null), e); + }); + } + + /** {@inheritDoc} */ + @Override + public void start() { + ((ExtendedTableConfiguration) tablesCfg.tables().any()).schemas().listenElements(new ConfigurationNamedListListener<>() { + @Override + public CompletableFuture<?> onCreate(ConfigurationNotificationEvent<SchemaView> schemasCtx) { + return onSchemaCreate(schemasCtx); + } + }); + } + + /** + * Listener of schema configuration changes. + * + * @param schemasCtx Schemas configuration context. + * @return A future. + */ + private CompletableFuture<?> onSchemaCreate(ConfigurationNotificationEvent<SchemaView> schemasCtx) { + long causalityToken = schemasCtx.storageRevision(); + + ExtendedTableConfiguration tblCfg = schemasCtx.config(ExtendedTableConfiguration.class); + + UUID tblId = tblCfg.id().value(); + + String tableName = tblCfg.name().value(); + + SchemaDescriptor schemaDescriptor = SchemaSerializerImpl.INSTANCE.deserialize((schemasCtx.newValue().schema())); + + CompletableFuture<?> res = createSchema(causalityToken, tblId, tableName, schemaDescriptor); + + fireEvent(SchemaEvent.CREATE, new SchemaEventParameters(causalityToken, tblId, schemaDescriptor), null); Review Comment: fixed -- This is an automated message from the Apache Git Service. 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