content: /*
   * 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.*;
  import java.util.ArrayList;
  import java.util.List;
  
  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.MessagingService;
  import org.apache.cassandra.tcm.ClusterMetadata;
  
  /**
   * This is the first message that gets sent out as a start of the Gossip protocol in a
   * round.
   */
  
  public class GossipDigestSyn
  {
      public static final IVersionedSerializer<GossipDigestSyn> serializer = new GossipDigestSynSerializer();
  
      final String clusterId;
      final String partioner;
      final int metadataId;
      final List<GossipDigest> gDigests;
  
      public GossipDigestSyn(String clusterId, String partioner, int metadataId, List<GossipDigest> gDigests)
      {
          this.clusterId = clusterId;
          this.partioner = partioner;
          this.metadataId = metadataId;
          this.gDigests = gDigests;
      }
  
      List<GossipDigest> getGossipDigests()
      {
          return gDigests;
      }
  }
  
  class GossipDigestSerializationHelper
  {
      static void serialize(List<GossipDigest> gDigestList, DataOutputPlus out, int version) throws IOException
      {
          out.writeInt(gDigestList.size());
          for (GossipDigest gDigest : gDigestList)
              GossipDigest.serializer.serialize(gDigest, out, version);
      }
  
      static List<GossipDigest> deserialize(DataInputPlus in, int version) throws IOException
      {
          int size = in.readInt();
          List<GossipDigest> gDigests = new ArrayList<GossipDigest>(size);
          for (int i = 0; i < size; ++i)
              gDigests.add(GossipDigest.serializer.deserialize(in, version));
          return gDigests;
      }
  
      static int serializedSize(List<GossipDigest> digests, int version)
      {
          int size = TypeSizes.sizeof(digests.size());
          for (GossipDigest digest : digests)
              size += GossipDigest.serializer.serializedSize(digest, version);
          return size;
      }
  }
  
  class GossipDigestSynSerializer implements IVersionedSerializer<GossipDigestSyn>
  {
      public void serialize(GossipDigestSyn gDigestSynMessage, DataOutputPlus out, int version) throws IOException
      {
          out.writeUTF(gDigestSynMessage.clusterId);
          out.writeUTF(gDigestSynMessage.partioner);
          if (version >= MessagingService.VERSION_51)
              out.writeUnsignedVInt32(gDigestSynMessage.metadataId);
          GossipDigestSerializationHelper.serialize(gDigestSynMessage.gDigests, out, version);
      }
  
      public GossipDigestSyn deserialize(DataInputPlus in, int version) throws IOException
      {
          String clusterId = in.readUTF();
          String partioner = null;
          partioner = in.readUTF();
          int metadataId = version >= MessagingService.VERSION_51
                           ? in.readUnsignedVInt32()
                           : ClusterMetadata.EMPTY_METADATA_IDENTIFIER;
          List<GossipDigest> gDigests = GossipDigestSerializationHelper.deserialize(in, version);
          return new GossipDigestSyn(clusterId, partioner, metadataId, gDigests);
      }
  
      public long serializedSize(GossipDigestSyn syn, int version)
      {
          long size = TypeSizes.sizeof(syn.clusterId);
          size += TypeSizes.sizeof(syn.partioner);
          if (version >= MessagingService.VERSION_51)
              size += TypeSizes.sizeofUnsignedVInt(syn.metadataId);
          size += GossipDigestSerializationHelper.serializedSize(syn.gDigests, version);
          return size;
      }
  }
  
  