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.locator;
  
  import com.google.common.base.Preconditions;
  import com.google.common.collect.ImmutableMap;
  import com.google.common.collect.Maps;
  
  import java.io.IOException;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.cassandra.db.TypeSizes;
  import org.apache.cassandra.dht.IPartitioner;
  import org.apache.cassandra.dht.Range;
  import org.apache.cassandra.dht.Token;
  import org.apache.cassandra.io.util.DataInputPlus;
  import org.apache.cassandra.io.util.DataOutputPlus;
  import org.apache.cassandra.tcm.ClusterMetadata;
  import org.apache.cassandra.tcm.serialization.MetadataSerializer;
  import org.apache.cassandra.tcm.serialization.Version;
  
  public class RangesByEndpoint extends ReplicaMultimap<InetAddressAndPort, RangesAtEndpoint>
  {
      public static RangesByEndpoint EMPTY = new RangesByEndpoint.Builder().build();
  
      public static final Serializer serializer = new Serializer();
  
      public RangesByEndpoint(Map<InetAddressAndPort, RangesAtEndpoint> map)
      {
          super(map);
      }
  
      public RangesAtEndpoint get(InetAddressAndPort endpoint)
      {
          Preconditions.checkNotNull(endpoint);
          return map.getOrDefault(endpoint, RangesAtEndpoint.empty(endpoint));
      }
  
      public static class Builder extends ReplicaMultimap.Builder<InetAddressAndPort, RangesAtEndpoint.Builder>
      {
          @Override
          protected RangesAtEndpoint.Builder newBuilder(InetAddressAndPort endpoint)
          {
              return new RangesAtEndpoint.Builder(endpoint);
          }
  
          public RangesByEndpoint build()
          {
              return new RangesByEndpoint(
                      ImmutableMap.copyOf(
                              Maps.transformValues(this.map, RangesAtEndpoint.Builder::build)));
          }
      }
  
      public static class Serializer implements MetadataSerializer<RangesByEndpoint>
      {
          public void serialize(RangesByEndpoint t, DataOutputPlus out, Version version) throws IOException
          {
              Set<Map.Entry<InetAddressAndPort, RangesAtEndpoint>> entries = t.entrySet();
              out.writeInt(entries.size());
              IPartitioner partitioner = ClusterMetadata.current().partitioner;
              for (Map.Entry<InetAddressAndPort, RangesAtEndpoint> entry : entries)
              {
                  InetAddressAndPort.MetadataSerializer.serializer.serialize(entry.getKey(), out, version);
                  AbstractReplicaCollection.ReplicaList replicas = entry.getValue().list;
                  out.writeInt(replicas.size());
                  for (Replica r : replicas)
                  {
                      // TODO duplicated from IPartitioner.validate as we don't want to rely on DatabaseDescriptor
                      if (partitioner != r.range().left.getPartitioner())
                          throw new AssertionError(String.format("Partitioner in range serialization. Expected %s, was %s.",
                                                                 partitioner.getClass().getName(),
                                                                 r.range().left.getPartitioner().getClass().getName()));
                      Range.serializer.serialize(r.range(), out, version);
                      out.writeBoolean(r.isFull());
                  }
              }
          }
  
          public RangesByEndpoint deserialize(DataInputPlus in, Version version) throws IOException
          {
              RangesByEndpoint.Builder builder = new Builder();
              int size = in.readInt();
              for (int i=0; i<size; i++)
              {
                  InetAddressAndPort endpoint = InetAddressAndPort.MetadataSerializer.serializer.deserialize(in, version);
                  int replicas = in.readInt();
                  for (int j=0; j<replicas; j++)
                  {
                      Range<Token> range = Range.serializer.deserialize(in, version);
                      boolean full = in.readBoolean();
                      builder.put(endpoint, new Replica(endpoint, range, full));
                  }
              }
              return builder.build();
          }
  
          public long serializedSize(RangesByEndpoint t, Version version)
          {
              long size = TypeSizes.INT_SIZE;
              for (Map.Entry<InetAddressAndPort, RangesAtEndpoint> entry : t.entrySet())
              {
                  size += InetAddressAndPort.MetadataSerializer.serializer.serializedSize(entry.getKey(), version);
                  size += TypeSizes.INT_SIZE;
                  for (Replica r : entry.getValue().list)
                  {
                      size += Range.serializer.serializedSize(r.range(), version);
                      size += TypeSizes.BOOL_SIZE;
                  }
              }
              return size;
          }
      }
  }
  