| /* |
| * 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.service.paxos.cleanup; |
| |
| import java.io.IOException; |
| import java.util.UUID; |
| |
| import javax.annotation.Nullable; |
| |
| import org.apache.cassandra.db.TypeSizes; |
| import org.apache.cassandra.io.IVersionedSerializer; |
| import org.apache.cassandra.io.util.DataInputPlus; |
| import org.apache.cassandra.io.util.DataOutputPlus; |
| import org.apache.cassandra.net.IVerbHandler; |
| import org.apache.cassandra.utils.UUIDSerializer; |
| |
| public class PaxosCleanupResponse |
| { |
| public final UUID session; |
| public final boolean wasSuccessful; |
| public final String message; |
| |
| public PaxosCleanupResponse(UUID session, boolean wasSuccessful, @Nullable String message) |
| { |
| this.session = session; |
| this.wasSuccessful = wasSuccessful; |
| this.message = message; |
| } |
| |
| public static PaxosCleanupResponse success(UUID session) |
| { |
| return new PaxosCleanupResponse(session, true, null); |
| } |
| |
| public static PaxosCleanupResponse failed(UUID session, String message) |
| { |
| return new PaxosCleanupResponse(session, false, message); |
| } |
| |
| public static final IVerbHandler<PaxosCleanupResponse> verbHandler = (message) -> PaxosCleanupSession.finishSession(message.from(), message.payload); |
| |
| public static final IVersionedSerializer<PaxosCleanupResponse> serializer = new IVersionedSerializer<PaxosCleanupResponse>() |
| { |
| public void serialize(PaxosCleanupResponse finished, DataOutputPlus out, int version) throws IOException |
| { |
| UUIDSerializer.serializer.serialize(finished.session, out, version); |
| out.writeBoolean(finished.wasSuccessful); |
| out.writeBoolean(finished.message != null); |
| if (finished.message != null) |
| out.writeUTF(finished.message); |
| } |
| |
| public PaxosCleanupResponse deserialize(DataInputPlus in, int version) throws IOException |
| { |
| UUID session = UUIDSerializer.serializer.deserialize(in, version); |
| boolean success = in.readBoolean(); |
| String message = in.readBoolean() ? in.readUTF() : null; |
| return new PaxosCleanupResponse(session, success, message); |
| } |
| |
| public long serializedSize(PaxosCleanupResponse finished, int version) |
| { |
| long size = UUIDSerializer.serializer.serializedSize(finished.session, version); |
| size += TypeSizes.sizeof(finished.wasSuccessful); |
| size += TypeSizes.sizeof(finished.message != null); |
| if (finished.message != null) |
| size += TypeSizes.sizeof(finished.message); |
| return size; |
| } |
| }; |
| } |