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FutureUtils.java
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FutureUtils.java
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/*
* 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.flink.queryablestate;
import java.util.concurrent.CompletableFuture;
/**
* Utility class for {@link java.util.concurrent.Future Java Futures}.
*/
public class FutureUtils {
// ------------------------------------------------------------------------
// Future Completed with an exception.
// ------------------------------------------------------------------------
/**
* Returns a {@link CompletableFuture} that has failed with the exception
* provided as argument.
* @param throwable the exception to fail the future with.
* @return The failed future.
*/
public static <T> CompletableFuture<T> getFailedFuture(Throwable throwable) {
CompletableFuture<T> failedAttempt = new CompletableFuture<>();
failedAttempt.completeExceptionally(throwable);
return failedAttempt;
}
}