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 accord.maelstrom;
  
  import java.util.Map;
  import javax.annotation.Nonnull;
  
  import accord.api.Data;
  import accord.api.Key;
  import accord.api.Query;
  import accord.api.Read;
  import accord.api.Result;
  import accord.api.Update;
  import accord.local.Node;
  import accord.local.Node.Id;
  import accord.primitives.Seekables;
  import accord.primitives.Timestamp;
  import accord.primitives.TxnId;
  
  public class MaelstromQuery implements Query
  {
      final Node.Id client;
      final long requestId;
  
      public MaelstromQuery(Id client, long requestId)
      {
          this.client = client;
          this.requestId = requestId;
      }
  
      @Override
      public Result compute(@Nonnull TxnId txnId, @Nonnull Timestamp executeAt, @Nonnull Seekables<?, ?> keys,  Data data, Read untypedRead, Update update)
      {
          MaelstromRead read = (MaelstromRead) untypedRead;
          Value[] values = new Value[read.readKeys.size()];
          for (Map.Entry<Key, Value> e : ((MaelstromData)data).entrySet())
              values[read.readKeys.indexOf(e.getKey())] = e.getValue();
          return new MaelstromResult(client, requestId, read.readKeys, values, (MaelstromUpdate) update);
      }
  }
  