| /* |
| * 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.CatalogManagerImpl.INITIAL_CAUSALITY_TOKEN; |
| import static org.apache.ignite.internal.catalog.CatalogParamsValidationUtils.validateIdentifier; |
| import static org.apache.ignite.internal.lang.IgniteStringFormatter.format; |
| |
| import java.util.List; |
| import org.apache.ignite.internal.catalog.Catalog; |
| import org.apache.ignite.internal.catalog.CatalogCommand; |
| 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.CatalogSystemViewDescriptor; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogTableDescriptor; |
| import org.apache.ignite.internal.catalog.storage.NewSchemaEntry; |
| import org.apache.ignite.internal.catalog.storage.ObjectIdGenUpdateEntry; |
| import org.apache.ignite.internal.catalog.storage.UpdateEntry; |
| |
| /** |
| * Command to create a new schema. |
| */ |
| public class CreateSchemaCommand implements CatalogCommand { |
| |
| private final String schemaName; |
| |
| private CreateSchemaCommand(String schemaName) { |
| validateIdentifier(schemaName, "Name of the schema"); |
| |
| this.schemaName = schemaName; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public List<UpdateEntry> get(Catalog catalog) { |
| int id = catalog.objectIdGenState(); |
| |
| if (catalog.schema(schemaName) != null) { |
| throw new CatalogValidationException(format("Schema with name '{}' already exists", schemaName)); |
| } |
| |
| CatalogSchemaDescriptor schema = new CatalogSchemaDescriptor( |
| id, |
| schemaName, |
| new CatalogTableDescriptor[0], |
| new CatalogIndexDescriptor[0], |
| new CatalogSystemViewDescriptor[0], |
| INITIAL_CAUSALITY_TOKEN |
| ); |
| |
| return List.of( |
| new NewSchemaEntry(schema), |
| new ObjectIdGenUpdateEntry(1) |
| ); |
| } |
| |
| /** Returns builder to create a command to create a new schema. */ |
| public static Builder builder() { |
| return new Builder(); |
| } |
| |
| /** Implementation of {@link CreateSchemaCommandBuilder}. */ |
| public static class Builder implements CreateSchemaCommandBuilder { |
| |
| private String name; |
| |
| /** {@inheritDoc} */ |
| @Override |
| public CreateSchemaCommandBuilder name(String name) { |
| this.name = name; |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public CatalogCommand build() { |
| return new CreateSchemaCommand(name); |
| } |
| } |
| } |