com.github.cm.heclouds.adapter.mqttadapter.mqtt.promise.PromiseBreaker Maven / Gradle / Ivy

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/*
 * Copyright (C) 2018 Issey Yamakoshi
 *
 * 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 com.github.cm.heclouds.adapter.mqttadapter.mqtt.promise;


import io.netty.util.concurrent.Promise;

public class PromiseBreaker {

    private final Throwable cause;

    public PromiseBreaker(Throwable cause) {
        this.cause = cause;
    }

    public > PromiseBreaker renege(P promise) {
        if (promise != null) {
            promise.tryFailure(cause);
        }
        return this;
    }

    public 
> PromiseBreaker renege(Iterable promises) {
        for (P promise : promises) {
            renege(promise);
        }
        return this;
    }
}