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/*
 * Copyright (c) 2015, 2024, Oracle and/or its affiliates.
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2.0, as published by
 * the Free Software Foundation.
 *
 * This program is designed to work with certain software that is licensed under separate terms, as designated in a particular file or component or in
 * included license documentation. The authors of MySQL hereby grant you an additional permission to link the program and your derivative works with the
 * separately licensed software that they have either included with the program or referenced in the documentation.
 *
 * Without limiting anything contained in the foregoing, this file, which is part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
 * version 1.0, a copy of which can be found at http://oss.oracle.com/licenses/universal-foss-exception.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0, for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

package com.mysql.cj.protocol.x;

import java.nio.channels.CompletionHandler;
import java.util.concurrent.CompletableFuture;

/**
 * Base class that propagates any error to the given future allowing only implementation of the success callback.
 *
 * @param 
 *            result type
 */
public class ErrorToFutureCompletionHandler implements CompletionHandler {

    private CompletableFuture future;
    private Runnable successCallback;

    public ErrorToFutureCompletionHandler(CompletableFuture future, Runnable successCallback) {
        this.future = future;
        this.successCallback = successCallback;
    }

    @Override
    public void completed(T result, Void attachment) {
        this.successCallback.run();
    }

    @Override
    public void failed(Throwable ex, Void attachment) {
        this.future.completeExceptionally(ex);
    }

}