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.net;
  
  import java.io.IOException;
  import java.util.Map;
  
  import com.google.common.collect.Maps;
  
  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.utils.ByteArrayUtil;
  
  
  class CustomParamsSerializer implements IVersionedSerializer<Map<String,byte[]>>
  {
      public static final CustomParamsSerializer serializer = new CustomParamsSerializer();
  
      @Override
      public void serialize(Map<String, byte[]> t, DataOutputPlus out, int version) throws IOException
      {
          out.writeUnsignedVInt32(t.size());
          for (Map.Entry<String, byte[]> e : t.entrySet())
          {
              out.writeUTF(e.getKey());
              ByteArrayUtil.writeWithVIntLength(e.getValue(), out);
          }
      }
  
      @Override
      public long serializedSize(Map<String, byte[]> t, int version)
      {
          int size = TypeSizes.sizeofUnsignedVInt(t.size());
          for (Map.Entry<String,byte[]> e : t.entrySet())
          {
              size += TypeSizes.sizeof(e.getKey());
              size += ByteArrayUtil.serializedSizeWithVIntLength(e.getValue());
          }
          return size;
      }
  
      @Override
      public Map<String, byte[]> deserialize(DataInputPlus in, int version) throws IOException
      {
          int entries = in.readUnsignedVInt32();
          Map<String, byte[]> customParams = Maps.newHashMapWithExpectedSize(entries);
  
          for (int i = 0 ; i < entries ; ++i)
              customParams.put(in.readUTF(), ByteArrayUtil.readWithVIntLength(in));
  
          return customParams;
      }
  
  }
  