VoidChannelPromise.java — netty Source File

Source Code

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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 io.netty.channel;

import io.netty.util.concurrent.AbstractFuture;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.UnstableApi;

import java.util.concurrent.TimeUnit;

@UnstableApi
public final class VoidChannelPromise extends AbstractFuture<Void> implements ChannelPromise {

    private final Channel channel;
    // Will be null if we should not propagate exceptions through the pipeline on failure case.
    private final ChannelFutureListener fireExceptionListener;

    /**
     * Creates a new instance.
     *
     * @param channel the {@link Channel} associated with this future
     */
    public VoidChannelPromise(final Channel channel, boolean fireException) {
        ObjectUtil.checkNotNull(channel, "channel");
        this.channel = channel;
        if (fireException) {
            fireExceptionListener = new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    Throwable cause = future.cause();
                    if (cause != null) {
                        fireException0(cause);
                    }
                }
            };
        } else {
            fireExceptionListener = null;
        }
    }

    @Override
    public VoidChannelPromise addListener(GenericFutureListener<? extends Future<? super Void>> listener) {
        fail();
        return this;
    }
// ... (180 more lines)