content: /*
   * Copyright (C) 2012 Facebook, Inc.
   *
   * Licensed 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 io.airlift.drift.server;
  
  import com.google.common.util.concurrent.ListenableFuture;
  
  import java.util.function.Supplier;
  
  import static com.google.common.util.concurrent.Futures.immediateFailedFuture;
  import static com.google.common.util.concurrent.Futures.immediateFuture;
  
  public class ResultsSupplier
          implements Supplier<ListenableFuture<Object>>
  {
      private ListenableFuture<Object> futureResult = immediateFuture(null);
  
      public void setSuccessResult(Object result)
      {
          this.futureResult = immediateFuture(result);
      }
  
      public void setFailedResult(Throwable throwable)
      {
          this.futureResult = immediateFailedFuture(throwable);
      }
  
      @Override
      public ListenableFuture<Object> get()
      {
          return futureResult;
      }
  }
  