| /* |
| * 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.gms; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| 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.CompactEndpointSerializationHelper; |
| |
| /** |
| * This ack gets sent out as a result of the receipt of a GossipDigestSynMessage by an |
| * endpoint. This is the 2 stage of the 3 way messaging in the Gossip protocol. |
| */ |
| public class GossipDigestAck |
| { |
| public static final IVersionedSerializer<GossipDigestAck> serializer = new GossipDigestAckSerializer(); |
| |
| final List<GossipDigest> gDigestList; |
| final Map<InetAddress, EndpointState> epStateMap; |
| |
| GossipDigestAck(List<GossipDigest> gDigestList, Map<InetAddress, EndpointState> epStateMap) |
| { |
| this.gDigestList = gDigestList; |
| this.epStateMap = epStateMap; |
| } |
| |
| List<GossipDigest> getGossipDigestList() |
| { |
| return gDigestList; |
| } |
| |
| Map<InetAddress, EndpointState> getEndpointStateMap() |
| { |
| return epStateMap; |
| } |
| } |
| |
| class GossipDigestAckSerializer implements IVersionedSerializer<GossipDigestAck> |
| { |
| public void serialize(GossipDigestAck gDigestAckMessage, DataOutputPlus out, int version) throws IOException |
| { |
| GossipDigestSerializationHelper.serialize(gDigestAckMessage.gDigestList, out, version); |
| out.writeInt(gDigestAckMessage.epStateMap.size()); |
| for (Map.Entry<InetAddress, EndpointState> entry : gDigestAckMessage.epStateMap.entrySet()) |
| { |
| InetAddress ep = entry.getKey(); |
| CompactEndpointSerializationHelper.serialize(ep, out); |
| EndpointState.serializer.serialize(entry.getValue(), out, version); |
| } |
| } |
| |
| public GossipDigestAck deserialize(DataInputPlus in, int version) throws IOException |
| { |
| List<GossipDigest> gDigestList = GossipDigestSerializationHelper.deserialize(in, version); |
| int size = in.readInt(); |
| Map<InetAddress, EndpointState> epStateMap = new HashMap<InetAddress, EndpointState>(size); |
| |
| for (int i = 0; i < size; ++i) |
| { |
| InetAddress ep = CompactEndpointSerializationHelper.deserialize(in); |
| EndpointState epState = EndpointState.serializer.deserialize(in, version); |
| epStateMap.put(ep, epState); |
| } |
| return new GossipDigestAck(gDigestList, epStateMap); |
| } |
| |
| public long serializedSize(GossipDigestAck ack, int version) |
| { |
| int size = GossipDigestSerializationHelper.serializedSize(ack.gDigestList, version); |
| size += TypeSizes.sizeof(ack.epStateMap.size()); |
| for (Map.Entry<InetAddress, EndpointState> entry : ack.epStateMap.entrySet()) |
| size += CompactEndpointSerializationHelper.serializedSize(entry.getKey()) |
| + EndpointState.serializer.serializedSize(entry.getValue(), version); |
| return size; |
| } |
| } |