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 storm.trident.state.map;
  
  import java.util.Arrays;
  import java.util.List;
  import storm.trident.state.ValueUpdater;
  import storm.trident.state.snapshot.Snapshottable;
  
  
  public class SnapshottableMap<T> implements MapState<T>, Snapshottable<T> {
      MapState<T> _delegate;
      List<List<Object>> _keys;
  
      public SnapshottableMap(MapState<T> delegate, List<Object> snapshotKey) {
          _delegate = delegate;
          _keys = Arrays.asList(snapshotKey);
      }
  
      @Override
      public List<T> multiGet(List<List<Object>> keys) {
          return _delegate.multiGet(keys);
      }
  
      @Override
      public List<T> multiUpdate(List<List<Object>> keys, List<ValueUpdater> updaters) {
          return _delegate.multiUpdate(keys, updaters);
      }
  
      @Override
      public void multiPut(List<List<Object>> keys, List<T> vals) {
          _delegate.multiPut(keys, vals);
      }
  
      @Override
      public void beginCommit(Long txid) {
          _delegate.beginCommit(txid);
      }
  
      @Override
      public void commit(Long txid) {
          _delegate.commit(txid);
      }
  
      @Override
      public T get() {
          return multiGet(_keys).get(0);
      }
  
      @Override
      public T update(ValueUpdater updater) {
          List<ValueUpdater> updaters = Arrays.asList(updater);
          return multiUpdate(_keys, updaters).get(0);
      }
  
      @Override
      public void set(T o) {
          multiPut(_keys, Arrays.asList(o));
      }
      
  }
  