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.streaming;
  
  import java.io.IOException;
  import java.net.InetSocketAddress;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  import org.apache.cassandra.db.TypeSizes;
  import org.apache.cassandra.dht.IPartitioner;
  import org.apache.cassandra.dht.IPartitionerDependentSerializer;
  import org.apache.cassandra.io.util.DataInputPlus;
  import org.apache.cassandra.io.util.DataOutputPlus;
  import org.apache.cassandra.locator.InetAddressAndPort;
  
  import static org.apache.cassandra.locator.InetAddressAndPort.Serializer.inetAddressAndPortSerializer;
  
  public class SessionSummary
  {
      public final InetSocketAddress coordinator;
      public final InetSocketAddress peer;
      /** Immutable collection of receiving summaries */
      public final Collection<StreamSummary> receivingSummaries;
      /** Immutable collection of sending summaries*/
      public final Collection<StreamSummary> sendingSummaries;
  
      public SessionSummary(InetSocketAddress coordinator, InetSocketAddress peer,
                            Collection<StreamSummary> receivingSummaries,
                            Collection<StreamSummary> sendingSummaries)
      {
          assert coordinator != null;
          assert peer != null;
          assert receivingSummaries != null;
          assert sendingSummaries != null;
  
          this.coordinator = coordinator;
          this.peer = peer;
          this.receivingSummaries = receivingSummaries;
          this.sendingSummaries = sendingSummaries;
      }
  
      public boolean equals(Object o)
      {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
  
          SessionSummary summary = (SessionSummary) o;
  
          if (!coordinator.equals(summary.coordinator)) return false;
          if (!peer.equals(summary.peer)) return false;
          if (!receivingSummaries.equals(summary.receivingSummaries)) return false;
          return sendingSummaries.equals(summary.sendingSummaries);
      }
  
      public int hashCode()
      {
          int result = coordinator.hashCode();
          result = 31 * result + peer.hashCode();
          result = 31 * result + receivingSummaries.hashCode();
          result = 31 * result + sendingSummaries.hashCode();
          return result;
      }
  
      public static IPartitionerDependentSerializer<SessionSummary> serializer = new IPartitionerDependentSerializer<SessionSummary>()
      {
          public void serialize(SessionSummary summary, DataOutputPlus out, int version) throws IOException
          {
              inetAddressAndPortSerializer.serialize(summary.coordinator, out, version);
              inetAddressAndPortSerializer.serialize(summary.peer, out, version);
  
              out.writeInt(summary.receivingSummaries.size());
              for (StreamSummary streamSummary: summary.receivingSummaries)
              {
                  StreamSummary.serializer.serialize(streamSummary, out, version);
              }
  
              out.writeInt(summary.sendingSummaries.size());
              for (StreamSummary streamSummary: summary.sendingSummaries)
              {
                  StreamSummary.serializer.serialize(streamSummary, out, version);
              }
          }
  
          public SessionSummary deserialize(DataInputPlus in, IPartitioner partitioner, int version) throws IOException
          {
              InetAddressAndPort coordinator = inetAddressAndPortSerializer.deserialize(in, version);
              InetAddressAndPort peer = inetAddressAndPortSerializer.deserialize(in, version);
  
              int numRcvd = in.readInt();
              List<StreamSummary> receivingSummaries = new ArrayList<>(numRcvd);
              for (int i=0; i<numRcvd; i++)
              {
                  receivingSummaries.add(StreamSummary.serializer.deserialize(in, version));
              }
  
              int numSent = in.readInt();
              List<StreamSummary> sendingSummaries = new ArrayList<>(numRcvd);
              for (int i=0; i<numSent; i++)
              {
                  sendingSummaries.add(StreamSummary.serializer.deserialize(in, version));
              }
  
              return new SessionSummary(coordinator, peer, receivingSummaries, sendingSummaries);
          }
  
          public long serializedSize(SessionSummary summary, int version)
          {
              long size = 0;
              size += inetAddressAndPortSerializer.serializedSize(summary.coordinator, version);
              size += inetAddressAndPortSerializer.serializedSize(summary.peer, version);
  
              size += TypeSizes.sizeof(summary.receivingSummaries.size());
              for (StreamSummary streamSummary: summary.receivingSummaries)
              {
                  size += StreamSummary.serializer.serializedSize(streamSummary, version);
              }
              size += TypeSizes.sizeof(summary.sendingSummaries.size());
              for (StreamSummary streamSummary: summary.sendingSummaries)
              {
                  size += StreamSummary.serializer.serializedSize(streamSummary, version);
              }
              return size;
          }
      };
  }
  