| /* |
| * 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.catalog.commands; |
| |
| import static org.apache.ignite.internal.catalog.CatalogParamsValidationUtils.ensureNoTableIndexOrSysViewExistsWithGivenName; |
| import static org.apache.ignite.internal.catalog.CatalogParamsValidationUtils.validateIdentifier; |
| import static org.apache.ignite.internal.catalog.commands.CatalogUtils.schemaOrThrow; |
| import static org.apache.ignite.internal.catalog.commands.CatalogUtils.tableOrThrow; |
| import static org.apache.ignite.internal.lang.IgniteStringFormatter.format; |
| import static org.apache.ignite.internal.util.CollectionUtils.copyOrNull; |
| import static org.apache.ignite.internal.util.CollectionUtils.nullOrEmpty; |
| |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import org.apache.ignite.internal.catalog.Catalog; |
| import org.apache.ignite.internal.catalog.CatalogValidationException; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogIndexDescriptor; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogSchemaDescriptor; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogTableDescriptor; |
| import org.apache.ignite.internal.catalog.storage.NewIndexEntry; |
| import org.apache.ignite.internal.catalog.storage.ObjectIdGenUpdateEntry; |
| import org.apache.ignite.internal.catalog.storage.UpdateEntry; |
| |
| /** |
| * Abstract create index command. |
| * |
| * <p>Encapsulates common logic of index creation like validation and update entries generation. |
| */ |
| public abstract class AbstractCreateIndexCommand extends AbstractIndexCommand { |
| protected final String tableName; |
| |
| protected final boolean unique; |
| |
| protected final List<String> columns; |
| |
| private final boolean ifNotExists; |
| |
| AbstractCreateIndexCommand(String schemaName, String indexName, boolean ifNotExists, String tableName, boolean unique, |
| List<String> columns) throws CatalogValidationException { |
| super(schemaName, indexName); |
| |
| validate(tableName, columns); |
| |
| this.ifNotExists = ifNotExists; |
| this.tableName = tableName; |
| this.unique = unique; |
| this.columns = copyOrNull(columns); |
| } |
| |
| public boolean ifNotExists() { |
| return ifNotExists; |
| } |
| |
| protected abstract CatalogIndexDescriptor createDescriptor(int indexId, int tableId, int creationCatalogVersion); |
| |
| @Override |
| public List<UpdateEntry> get(Catalog catalog) { |
| CatalogSchemaDescriptor schema = schemaOrThrow(catalog, schemaName); |
| |
| ensureNoTableIndexOrSysViewExistsWithGivenName(schema, indexName); |
| |
| CatalogTableDescriptor table = tableOrThrow(schema, tableName); |
| |
| assert columns != null; |
| |
| for (String columnName : columns) { |
| if (table.column(columnName) == null) { |
| throw new CatalogValidationException(format( |
| "Column with name '{}' not found in table '{}.{}'", columnName, schemaName, tableName)); |
| } |
| } |
| |
| if (unique && !new HashSet<>(columns).containsAll(table.colocationColumns())) { |
| throw new CatalogValidationException("Unique index must include all colocation columns"); |
| } |
| |
| return List.of( |
| new NewIndexEntry(createDescriptor(catalog.objectIdGenState(), table.id(), catalog.version() + 1)), |
| new ObjectIdGenUpdateEntry(1) |
| ); |
| } |
| |
| private static void validate(String tableName, List<String> columns) { |
| validateIdentifier(tableName, "Name of the table"); |
| |
| if (nullOrEmpty(columns)) { |
| throw new CatalogValidationException("Columns not specified"); |
| } |
| |
| Set<String> columnNames = new HashSet<>(); |
| |
| for (String name : columns) { |
| validateIdentifier(name, "Name of the column"); |
| |
| if (!columnNames.add(name)) { |
| throw new CatalogValidationException(format("Column with name '{}' specified more than once", name)); |
| } |
| } |
| } |
| } |