| /* |
| * 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.cassandra.schema; |
| |
| import java.util.HashSet; |
| import java.util.Optional; |
| import java.util.Set; |
| |
| import javax.annotation.Nullable; |
| |
| import com.google.common.base.Objects; |
| import com.google.common.collect.Iterables; |
| |
| import org.apache.cassandra.config.CFMetaData; |
| import org.apache.cassandra.config.Schema; |
| import org.apache.cassandra.config.ViewDefinition; |
| import org.apache.cassandra.exceptions.ConfigurationException; |
| |
| /** |
| * An immutable representation of keyspace metadata (name, params, tables, types, and functions). |
| */ |
| public final class KeyspaceMetadata |
| { |
| public final String name; |
| public final KeyspaceParams params; |
| public final Tables tables; |
| public final Views views; |
| public final Types types; |
| public final Functions functions; |
| |
| private KeyspaceMetadata(String name, KeyspaceParams params, Tables tables, Views views, Types types, Functions functions) |
| { |
| this.name = name; |
| this.params = params; |
| this.tables = tables; |
| this.views = views; |
| this.types = types; |
| this.functions = functions; |
| } |
| |
| public static KeyspaceMetadata create(String name, KeyspaceParams params) |
| { |
| return new KeyspaceMetadata(name, params, Tables.none(), Views.none(), Types.none(), Functions.none()); |
| } |
| |
| public static KeyspaceMetadata create(String name, KeyspaceParams params, Tables tables) |
| { |
| return new KeyspaceMetadata(name, params, tables, Views.none(), Types.none(), Functions.none()); |
| } |
| |
| public static KeyspaceMetadata create(String name, KeyspaceParams params, Tables tables, Views views, Types types, Functions functions) |
| { |
| return new KeyspaceMetadata(name, params, tables, views, types, functions); |
| } |
| |
| public KeyspaceMetadata withSwapped(KeyspaceParams params) |
| { |
| return new KeyspaceMetadata(name, params, tables, views, types, functions); |
| } |
| |
| public KeyspaceMetadata withSwapped(Tables regular) |
| { |
| return new KeyspaceMetadata(name, params, regular, views, types, functions); |
| } |
| |
| public KeyspaceMetadata withSwapped(Views views) |
| { |
| return new KeyspaceMetadata(name, params, tables, views, types, functions); |
| } |
| |
| public KeyspaceMetadata withSwapped(Types types) |
| { |
| return new KeyspaceMetadata(name, params, tables, views, types, functions); |
| } |
| |
| public KeyspaceMetadata withSwapped(Functions functions) |
| { |
| return new KeyspaceMetadata(name, params, tables, views, types, functions); |
| } |
| |
| public Iterable<CFMetaData> tablesAndViews() |
| { |
| return Iterables.concat(tables, views.metadatas()); |
| } |
| |
| @Nullable |
| public CFMetaData getTableOrViewNullable(String tableOrViewName) |
| { |
| ViewDefinition view = views.getNullable(tableOrViewName); |
| return view == null |
| ? tables.getNullable(tableOrViewName) |
| : view.metadata; |
| } |
| |
| public Set<String> existingIndexNames(String cfToExclude) |
| { |
| Set<String> indexNames = new HashSet<>(); |
| for (CFMetaData table : tables) |
| if (cfToExclude == null || !table.cfName.equals(cfToExclude)) |
| for (IndexMetadata index : table.getIndexes()) |
| indexNames.add(index.name); |
| return indexNames; |
| } |
| |
| public Optional<CFMetaData> findIndexedTable(String indexName) |
| { |
| for (CFMetaData cfm : tablesAndViews()) |
| if (cfm.getIndexes().has(indexName)) |
| return Optional.of(cfm); |
| |
| return Optional.empty(); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return Objects.hashCode(name, params, tables, views, functions, types); |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) |
| return true; |
| |
| if (!(o instanceof KeyspaceMetadata)) |
| return false; |
| |
| KeyspaceMetadata other = (KeyspaceMetadata) o; |
| |
| return name.equals(other.name) |
| && params.equals(other.params) |
| && tables.equals(other.tables) |
| && views.equals(other.views) |
| && functions.equals(other.functions) |
| && types.equals(other.types); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return Objects.toStringHelper(this) |
| .add("name", name) |
| .add("params", params) |
| .add("tables", tables) |
| .add("views", views) |
| .add("functions", functions) |
| .add("types", types) |
| .toString(); |
| } |
| |
| public void validate() |
| { |
| if (!CFMetaData.isNameValid(name)) |
| throw new ConfigurationException(String.format("Keyspace name must not be empty, more than %s characters long, " |
| + "or contain non-alphanumeric-underscore characters (got \"%s\")", |
| Schema.NAME_LENGTH, |
| name)); |
| params.validate(name); |
| tablesAndViews().forEach(CFMetaData::validate); |
| } |
| } |