| /* |
| * 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.db.virtual; |
| |
| import java.util.Collection; |
| import java.util.concurrent.TimeUnit; |
| import java.util.function.Supplier; |
| |
| import com.google.common.base.MoreObjects; |
| import com.google.common.collect.ImmutableMap; |
| |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.db.DecoratedKey; |
| import org.apache.cassandra.db.IMutation; |
| import org.apache.cassandra.db.Mutation; |
| import org.apache.cassandra.db.partitions.PartitionUpdate; |
| import org.apache.cassandra.schema.TableId; |
| import org.apache.cassandra.service.ClientState; |
| |
| /** |
| * A specialised IMutation implementation for virtual keyspaces. |
| * |
| * Mainly overrides {@link #apply()} to go straight to {@link VirtualTable#apply(PartitionUpdate)} for every table involved. |
| */ |
| public final class VirtualMutation implements IMutation |
| { |
| private final String keyspaceName; |
| private final DecoratedKey partitionKey; |
| private final ImmutableMap<TableId, PartitionUpdate> modifications; |
| |
| public VirtualMutation(PartitionUpdate update) |
| { |
| this(update.metadata().keyspace, update.partitionKey(), ImmutableMap.of(update.metadata().id, update)); |
| } |
| |
| public VirtualMutation(String keyspaceName, DecoratedKey partitionKey, ImmutableMap<TableId, PartitionUpdate> modifications) |
| { |
| this.keyspaceName = keyspaceName; |
| this.partitionKey = partitionKey; |
| this.modifications = modifications; |
| } |
| |
| @Override |
| public void apply() |
| { |
| modifications.forEach((id, update) -> VirtualKeyspaceRegistry.instance.getTableNullable(id).apply(update)); |
| } |
| |
| @Override |
| public String getKeyspaceName() |
| { |
| return keyspaceName; |
| } |
| |
| @Override |
| public Collection<TableId> getTableIds() |
| { |
| return modifications.keySet(); |
| } |
| |
| @Override |
| public DecoratedKey key() |
| { |
| return partitionKey; |
| } |
| |
| @Override |
| public long getTimeout(TimeUnit unit) |
| { |
| return DatabaseDescriptor.getWriteRpcTimeout(unit); |
| } |
| |
| @Override |
| public String toString(boolean shallow) |
| { |
| MoreObjects.ToStringHelper helper = |
| MoreObjects.toStringHelper(this) |
| .add("keyspace", keyspaceName) |
| .add("partition key", partitionKey); |
| |
| if (shallow) |
| helper.add("tables", getTableIds()); |
| else |
| helper.add("modifications", getPartitionUpdates()); |
| |
| return helper.toString(); |
| } |
| |
| @Override |
| public Collection<PartitionUpdate> getPartitionUpdates() |
| { |
| return modifications.values(); |
| } |
| |
| @Override |
| public Supplier<Mutation> hintOnFailure() |
| { |
| return null; |
| } |
| |
| @Override |
| public void validateIndexedColumns(ClientState state) |
| { |
| // no-op |
| } |
| |
| public void validateSize(int version, int overhead) |
| { |
| // no-op |
| } |
| } |