com.mysql.cj.protocol.x.ErrorToFutureCompletionHandler Maven / Gradle / Ivy
/*
* Copyright (c) 2015, 2020, 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 also distributed with certain software (including but not
* limited to OpenSSL) 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 included with MySQL.
*
* 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.,
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*/
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;
}
public void completed(T result, Void attachment) {
this.successCallback.run();
}
public void failed(Throwable ex, Void attachment) {
this.future.completeExceptionally(ex);
}
}