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.causeway.core.runtimeservices.wrapper;
  
  import java.util.concurrent.Future;
  
  import org.springframework.util.function.ThrowingConsumer;
  import org.springframework.util.function.ThrowingFunction;
  
  import org.apache.causeway.applib.services.wrapper.WrapperFactory.AsyncProxy;
  import org.apache.causeway.commons.functional.TryFuture;
  
  record AsyncProxyInternal<T>(
          Future<T> future,
          AsyncExecutor executor) implements AsyncProxy<T> {
  
      @Override
      public TryFuture<Void> acceptAsync(
              ThrowingConsumer<? super T> action) {
          return applyAsync(adapt(action));
      }
  
      @Override
      public <U> TryFuture<U> applyAsync(
              ThrowingFunction<? super T, ? extends U> fn) {
          return new TryFuture<>(()->fn.apply(future.get()), executor);
      }
  
      // -- HELPER
  
      /// converts ThrowingConsumer<T> to ThrowingFunction<T, Void>
      private ThrowingFunction<? super T, Void> adapt(ThrowingConsumer<? super T> action) {
          return t->{action.accept(t); return (Void)null; };
      }
  
  }