| /* |
| * 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.Map; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.base.MoreObjects; |
| import com.google.common.base.Objects; |
| |
| /** |
| * An immutable class representing keyspace parameters (durability and replication). |
| */ |
| public final class KeyspaceParams |
| { |
| public static final boolean DEFAULT_DURABLE_WRITES = true; |
| |
| /** |
| * This determines durable writes for the {@link org.apache.cassandra.config.SchemaConstants#SCHEMA_KEYSPACE_NAME} |
| * and {@link org.apache.cassandra.config.SchemaConstants#SYSTEM_KEYSPACE_NAME} keyspaces, |
| * the only reason it is not final is for commitlog unit tests. It should only be changed for testing purposes. |
| */ |
| @VisibleForTesting |
| public static boolean DEFAULT_LOCAL_DURABLE_WRITES = true; |
| |
| public enum Option |
| { |
| DURABLE_WRITES, |
| REPLICATION; |
| |
| @Override |
| public String toString() |
| { |
| return name().toLowerCase(); |
| } |
| } |
| |
| public final boolean durableWrites; |
| public final ReplicationParams replication; |
| |
| public KeyspaceParams(boolean durableWrites, ReplicationParams replication) |
| { |
| this.durableWrites = durableWrites; |
| this.replication = replication; |
| } |
| |
| public static KeyspaceParams create(boolean durableWrites, Map<String, String> replication) |
| { |
| return new KeyspaceParams(durableWrites, ReplicationParams.fromMap(replication)); |
| } |
| |
| public static KeyspaceParams local() |
| { |
| return new KeyspaceParams(DEFAULT_LOCAL_DURABLE_WRITES, ReplicationParams.local()); |
| } |
| |
| public static KeyspaceParams simple(int replicationFactor) |
| { |
| return new KeyspaceParams(true, ReplicationParams.simple(replicationFactor)); |
| } |
| |
| public static KeyspaceParams simpleTransient(int replicationFactor) |
| { |
| return new KeyspaceParams(false, ReplicationParams.simple(replicationFactor)); |
| } |
| |
| public static KeyspaceParams nts(Object... args) |
| { |
| return new KeyspaceParams(true, ReplicationParams.nts(args)); |
| } |
| |
| public void validate(String name) |
| { |
| replication.validate(name); |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) |
| return true; |
| |
| if (!(o instanceof KeyspaceParams)) |
| return false; |
| |
| KeyspaceParams p = (KeyspaceParams) o; |
| |
| return durableWrites == p.durableWrites && replication.equals(p.replication); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return Objects.hashCode(durableWrites, replication); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return MoreObjects.toStringHelper(this) |
| .add(Option.DURABLE_WRITES.toString(), durableWrites) |
| .add(Option.REPLICATION.toString(), replication) |
| .toString(); |
| } |
| } |