| /* |
| * 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.storage; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Objects; |
| import org.apache.ignite.internal.catalog.Catalog; |
| import org.apache.ignite.internal.catalog.commands.CatalogUtils; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogSchemaDescriptor; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogTableDescriptor; |
| import org.apache.ignite.internal.catalog.events.CatalogEvent; |
| import org.apache.ignite.internal.catalog.events.CatalogEventParameters; |
| import org.apache.ignite.internal.catalog.events.DropTableEventParameters; |
| import org.apache.ignite.internal.catalog.storage.serialization.CatalogObjectSerializer; |
| import org.apache.ignite.internal.catalog.storage.serialization.MarshallableEntryType; |
| import org.apache.ignite.internal.tostring.S; |
| import org.apache.ignite.internal.util.io.IgniteDataInput; |
| import org.apache.ignite.internal.util.io.IgniteDataOutput; |
| |
| /** |
| * Describes deletion of a table. |
| */ |
| public class DropTableEntry implements UpdateEntry, Fireable { |
| public static final CatalogObjectSerializer<DropTableEntry> SERIALIZER = new DropTableEntrySerializer(); |
| |
| private final int tableId; |
| |
| private final String schemaName; |
| |
| /** |
| * Constructs the object. |
| * |
| * @param tableId An id of a table to drop. |
| * @param schemaName A schema name. |
| */ |
| public DropTableEntry(int tableId, String schemaName) { |
| this.tableId = tableId; |
| this.schemaName = schemaName; |
| } |
| |
| /** Returns an id of a table to drop. */ |
| public int tableId() { |
| return tableId; |
| } |
| |
| @Override |
| public int typeId() { |
| return MarshallableEntryType.DROP_TABLE.id(); |
| } |
| |
| @Override |
| public CatalogEvent eventType() { |
| return CatalogEvent.TABLE_DROP; |
| } |
| |
| @Override |
| public CatalogEventParameters createEventParameters(long causalityToken, int catalogVersion) { |
| return new DropTableEventParameters(causalityToken, catalogVersion, tableId); |
| } |
| |
| @Override |
| public Catalog applyUpdate(Catalog catalog, long causalityToken) { |
| CatalogSchemaDescriptor schema = Objects.requireNonNull(catalog.schema(schemaName)); |
| |
| return new Catalog( |
| catalog.version(), |
| catalog.time(), |
| catalog.objectIdGenState(), |
| catalog.zones(), |
| CatalogUtils.replaceSchema(new CatalogSchemaDescriptor( |
| schema.id(), |
| schema.name(), |
| Arrays.stream(schema.tables()).filter(t -> t.id() != tableId).toArray(CatalogTableDescriptor[]::new), |
| schema.indexes(), |
| schema.systemViews(), |
| causalityToken |
| ), catalog.schemas()), |
| catalog.defaultZone().id() |
| ); |
| } |
| |
| @Override |
| public String toString() { |
| return S.toString(this); |
| } |
| |
| /** |
| * Serializer for {@link DropTableEntry}. |
| */ |
| private static class DropTableEntrySerializer implements CatalogObjectSerializer<DropTableEntry> { |
| @Override |
| public DropTableEntry readFrom(IgniteDataInput input) throws IOException { |
| int tableId = input.readInt(); |
| String schemaName = input.readUTF(); |
| |
| return new DropTableEntry(tableId, schemaName); |
| } |
| |
| @Override |
| public void writeTo(DropTableEntry entry, IgniteDataOutput out) throws IOException { |
| out.writeInt(entry.tableId()); |
| out.writeUTF(entry.schemaName); |
| } |
| } |
| } |