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.repair.messages;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  import java.util.Objects;
  
  import com.google.common.base.Preconditions;
  
  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.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.schema.TableId;
  import org.apache.cassandra.streaming.PreviewKind;
  import org.apache.cassandra.utils.FBUtilities;
  import org.apache.cassandra.utils.TimeUUID;
  
  
  public class PrepareMessage extends RepairMessage
  {
      public final List<TableId> tableIds;
      public final IPartitioner partitioner;
      public final Collection<Range<Token>> ranges;
  
      public final TimeUUID parentRepairSession;
      public final boolean isIncremental;
      public final long repairedAt;
      public final boolean isGlobal;
      public final PreviewKind previewKind;
  
      public PrepareMessage(TimeUUID parentRepairSession, List<TableId> tableIds, IPartitioner partitioner, Collection<Range<Token>> ranges, boolean isIncremental, long repairedAt, boolean isGlobal, PreviewKind previewKind)
      {
          super(null);
          this.parentRepairSession = parentRepairSession;
          this.tableIds = tableIds;
          this.partitioner = partitioner;
          this.ranges = ranges;
          this.isIncremental = isIncremental;
          this.repairedAt = repairedAt;
          this.isGlobal = isGlobal;
          this.previewKind = previewKind;
      }
  
      @Override
      public TimeUUID parentRepairSession()
      {
          return parentRepairSession;
      }
  
      @Override
      public boolean equals(Object o)
      {
          if (!(o instanceof PrepareMessage))
              return false;
          PrepareMessage other = (PrepareMessage) o;
          return parentRepairSession.equals(other.parentRepairSession) &&
                 isIncremental == other.isIncremental &&
                 isGlobal == other.isGlobal &&
                 previewKind == other.previewKind &&
                 repairedAt == other.repairedAt &&
                 tableIds.equals(other.tableIds) &&
                 partitioner.getClass().equals(other.partitioner.getClass()) &&
                 ranges.equals(other.ranges);
      }
  
      @Override
      public int hashCode()
      {
          return Objects.hash(parentRepairSession, isGlobal, previewKind, isIncremental, repairedAt, tableIds, ranges, partitioner);
      }
  
      private static final String MIXED_MODE_ERROR = "Some nodes involved in repair are on an incompatible major version. " +
                                                     "Repair is not supported in mixed major version clusters (%d vs %d). Note that " +
                                                     "5.x nodes running in storage compatibility mode = 4 are considered " +
                                                     "4.x nodes.";
  
      public static final IVersionedSerializer<PrepareMessage> serializer = new IVersionedSerializer<PrepareMessage>()
      {
          public void serialize(PrepareMessage message, DataOutputPlus out, int version) throws IOException
          {
              Preconditions.checkArgument(version == MessagingService.current_version,
                                          String.format(MIXED_MODE_ERROR, version, MessagingService.current_version));
  
              out.writeInt(message.tableIds.size());
              for (TableId tableId : message.tableIds)
                  tableId.serialize(out);
              message.parentRepairSession.serialize(out);
              if (version >= MessagingService.VERSION_51)
                  out.writeUTF(message.partitioner.getClass().getCanonicalName());
              out.writeInt(message.ranges.size());
              for (Range<Token> r : message.ranges)
                  Range.tokenSerializer.serialize(r, out, version);
              out.writeBoolean(message.isIncremental);
              out.writeLong(message.repairedAt);
              out.writeBoolean(message.isGlobal);
              out.writeInt(message.previewKind.getSerializationVal());
          }
  
          public PrepareMessage deserialize(DataInputPlus in, int version) throws IOException
          {
              Preconditions.checkArgument(version == MessagingService.current_version,
                                          String.format(MIXED_MODE_ERROR, version, MessagingService.current_version));
              int tableIdCount = in.readInt();
              List<TableId> tableIds = new ArrayList<>(tableIdCount);
              for (int i = 0; i < tableIdCount; i++)
                  tableIds.add(TableId.deserialize(in));
              TimeUUID parentRepairSession = TimeUUID.deserialize(in);
              IPartitioner partitioner = version >= MessagingService.VERSION_51
                                         ? FBUtilities.newPartitioner(in.readUTF())
                                         : IPartitioner.global();
              int rangeCount = in.readInt();
              List<Range<Token>> ranges = new ArrayList<>(rangeCount);
              for (int i = 0; i < rangeCount; i++)
                  ranges.add((Range<Token>) Range.tokenSerializer.deserialize(in, partitioner, version));
              boolean isIncremental = in.readBoolean();
              long timestamp = in.readLong();
              boolean isGlobal = in.readBoolean();
              PreviewKind previewKind = PreviewKind.deserialize(in.readInt());
              return new PrepareMessage(parentRepairSession, tableIds, partitioner, ranges, isIncremental, timestamp, isGlobal, previewKind);
          }
  
          public long serializedSize(PrepareMessage message, int version)
          {
              long size;
              size = TypeSizes.sizeof(message.tableIds.size());
              for (TableId tableId : message.tableIds)
                  size += tableId.serializedSize();
              size += TimeUUID.sizeInBytes();
              if (version >= MessagingService.VERSION_51)
                  size += TypeSizes.sizeof(message.partitioner.getClass().getCanonicalName());
              size += TypeSizes.sizeof(message.ranges.size());
              for (Range<Token> r : message.ranges)
                  size += Range.tokenSerializer.serializedSize(r, version);
              size += TypeSizes.sizeof(message.isIncremental);
              size += TypeSizes.sizeof(message.repairedAt);
              size += TypeSizes.sizeof(message.isGlobal);
              size += TypeSizes.sizeof(message.previewKind.getSerializationVal());
              return size;
          }
      };
  
      @Override
      public String toString()
      {
          return "PrepareMessage{" +
                 "tableIds='" + tableIds + '\'' +
                 ", ranges=" + ranges +
                 ", parentRepairSession=" + parentRepairSession +
                 ", isIncremental=" + isIncremental +
                 ", timestamp=" + repairedAt +
                 ", isGlobal=" + isGlobal +
                 '}';
      }
  }
  