zstan commented on a change in pull request #518: URL: https://github.com/apache/ignite-3/pull/518#discussion_r796402381
########## File path: modules/index/src/main/java/org/apache/ignite/internal/idx/IndexManagerImpl.java ########## @@ -0,0 +1,409 @@ +/* + * 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.idx; + +import java.util.Arrays; +import java.util.List; +import java.util.Map; +import java.util.UUID; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.CompletionException; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.function.Consumer; +import java.util.function.Function; +import java.util.stream.Collectors; +import java.util.stream.Stream; +import org.apache.ignite.configuration.ConfigurationChangeException; +import org.apache.ignite.configuration.notifications.ConfigurationNamedListListener; +import org.apache.ignite.configuration.notifications.ConfigurationNotificationEvent; +import org.apache.ignite.configuration.schemas.table.IndexColumnView; +import org.apache.ignite.configuration.schemas.table.SortedIndexView; +import org.apache.ignite.configuration.schemas.table.TableConfiguration; +import org.apache.ignite.configuration.schemas.table.TableIndexChange; +import org.apache.ignite.configuration.schemas.table.TableIndexView; +import org.apache.ignite.configuration.schemas.table.TablesConfiguration; +import org.apache.ignite.internal.configuration.schema.ExtendedTableConfiguration; +import org.apache.ignite.internal.idx.event.IndexEvent; +import org.apache.ignite.internal.idx.event.IndexEventParameters; +import org.apache.ignite.internal.manager.AbstractProducer; +import org.apache.ignite.internal.manager.IgniteComponent; +import org.apache.ignite.internal.schema.Column; +import org.apache.ignite.internal.schema.SchemaDescriptor; +import org.apache.ignite.internal.storage.index.SortedIndexColumnCollation; +import org.apache.ignite.internal.storage.index.SortedIndexColumnDescriptor; +import org.apache.ignite.internal.storage.index.SortedIndexDescriptor; +import org.apache.ignite.internal.table.TableImpl; +import org.apache.ignite.internal.table.distributed.TableManager; +import org.apache.ignite.internal.util.IgniteSpinBusyLock; +import org.apache.ignite.lang.IgniteException; +import org.apache.ignite.lang.IgniteLogger; +import org.apache.ignite.lang.IgniteUuid; +import org.apache.ignite.lang.IndexAlreadyExistsException; +import org.apache.ignite.lang.IndexNotFoundException; +import org.apache.ignite.lang.NodeStoppingException; +import org.jetbrains.annotations.NotNull; + +/** + * Internal index manager facade provides low-level methods for indexes operations. + */ +public class IndexManagerImpl extends AbstractProducer<IndexEvent, IndexEventParameters> implements IndexManager, IgniteComponent { + private static final IgniteLogger LOG = IgniteLogger.forClass(IndexManagerImpl.class); + + private final TablesConfiguration tablesCfg; + + private final TableManager tblMgr; + + /** Indexes by canonical name. */ + private final Map<String, InternalSortedIndex> idxsByName = new ConcurrentHashMap<>(); + + /** Busy lock to stop synchronously. */ + private final IgniteSpinBusyLock busyLock = new IgniteSpinBusyLock(); + + /** Prevents double stopping the component. */ + private final AtomicBoolean stopGuard = new AtomicBoolean(); + + /** + * Constructor. + * + * @param tablesCfg Tables configuration. + */ + public IndexManagerImpl( + TableManager tblMgr, + TablesConfiguration tablesCfg + ) { + this.tblMgr = tblMgr; + this.tablesCfg = tablesCfg; + } + + @Override + public void start() { + tablesCfg.tables().any().indices().listenElements( + new ConfigurationNamedListListener<>() { + @Override + public @NotNull CompletableFuture<?> onCreate(@NotNull ConfigurationNotificationEvent<TableIndexView> ctx) { + TableConfiguration tbl = ctx.config(TableConfiguration.class); + String tblName = tbl.name().value(); + String idxName = ctx.newValue().name(); + + if (!busyLock.enterBusy()) { + fireEvent(IndexEvent.CREATE, + new IndexEventParameters( + idxName, + tblName), + new NodeStoppingException()); + + return CompletableFuture.completedFuture(new NodeStoppingException()); + } + try { + onIndexCreate(ctx); + } catch (Exception e) { + fireEvent( + IndexEvent.CREATE, + new IndexEventParameters( + idxName, + tblName), + e Review comment: strange formatting and if it`s ok bu other check style it`s no ok from human readable practice .. -- This is an automated message from the Apache Git Service. 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