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Implementation of blocking (IO-Bound) cancellable java.util.concurrent.CompletionStage and related extensions to java.util.concurrent.ExecutorService-s

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/**
 * Copyright 2015-2019 Valery Silaev (http://vsilaev.com)
 *
 * 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 net.tascalate.concurrent;

import java.util.concurrent.CancellationException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;
import java.util.concurrent.CompletionStage;

import net.tascalate.concurrent.decorators.AbstractFutureDecorator;

public class CompletableFutureWrapper 
    extends AbstractFutureDecorator> 
    implements Promise {

    protected CompletableFutureWrapper() {
        this(new CompletableFuture());
    }
    
    
    protected CompletableFutureWrapper(CompletableFuture delegate) {
        super(delegate);
    }

    @Override
    public T getNow(T valueIfAbsent) {
        return delegate.getNow(valueIfAbsent);
    }
    
    @Override
    public T join() throws CancellationException, CompletionException {
        return delegate.join();
    }

    @Override
    protected  Promise wrap(CompletionStage original) {
        return new CompletableFutureWrapper<>((CompletableFuture)original);
    }
}