io.netty.channel.VoidChannelPromise Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of wildfly-client-all

This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

There is a newer version: 35.0.0.Beta1

Show newest version

/*
 * 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:
 *
 *   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 io.netty.channel;

import io.netty.util.concurrent.AbstractFuture;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;

import java.util.concurrent.TimeUnit;

final class VoidChannelPromise extends AbstractFuture implements ChannelPromise {

    private final Channel channel;
    private final boolean fireException;

    /**
     * Creates a new instance.
     *
     * @param channel the {@link Channel} associated with this future
     */
    VoidChannelPromise(Channel channel, boolean fireException) {
        if (channel == null) {
            throw new NullPointerException("channel");
        }
        this.channel = channel;
        this.fireException = fireException;
    }

    @Override
    public VoidChannelPromise addListener(GenericFutureListener> listener) {
        fail();
        return this;
    }

    @Override
    public VoidChannelPromise addListeners(GenericFutureListener>... listeners) {
        fail();
        return this;
    }

    @Override
    public VoidChannelPromise removeListener(GenericFutureListener> listener) {
        // NOOP
        return this;
    }

    @Override
    public VoidChannelPromise removeListeners(GenericFutureListener>... listeners) {
        // NOOP
        return this;
    }

    @Override
    public VoidChannelPromise await() throws InterruptedException {
        if (Thread.interrupted()) {
            throw new InterruptedException();
        }
        return this;
    }

    @Override
    public boolean await(long timeout, TimeUnit unit) {
        fail();
        return false;
    }

    @Override
    public boolean await(long timeoutMillis) {
        fail();
        return false;
    }

    @Override
    public VoidChannelPromise awaitUninterruptibly() {
        fail();
        return this;
    }

    @Override
    public boolean awaitUninterruptibly(long timeout, TimeUnit unit) {
        fail();
        return false;
    }

    @Override
    public boolean awaitUninterruptibly(long timeoutMillis) {
        fail();
        return false;
    }

    @Override
    public Channel channel() {
        return channel;
    }

    @Override
    public boolean isDone() {
        return false;
    }

    @Override
    public boolean isSuccess() {
        return false;
    }

    @Override
    public boolean setUncancellable() {
        return true;
    }

    @Override
    public boolean isCancellable() {
        return false;
    }

    @Override
    public boolean isCancelled() {
        return false;
    }

    @Override
    public Throwable cause() {
        return null;
    }

    @Override
    public VoidChannelPromise sync() {
        fail();
        return this;
    }

    @Override
    public VoidChannelPromise syncUninterruptibly() {
        fail();
        return this;
    }
    @Override
    public VoidChannelPromise setFailure(Throwable cause) {
        fireException(cause);
        return this;
    }

    @Override
    public VoidChannelPromise setSuccess() {
        return this;
    }

    @Override
    public boolean tryFailure(Throwable cause) {
        fireException(cause);
        return false;
    }

    @Override
    public boolean cancel(boolean mayInterruptIfRunning) {
        return false;
    }

    @Override
    public boolean trySuccess() {
        return false;
    }

    private static void fail() {
        throw new IllegalStateException("void future");
    }

    @Override
    public VoidChannelPromise setSuccess(Void result) {
        return this;
    }

    @Override
    public boolean trySuccess(Void result) {
        return false;
    }

    @Override
    public Void getNow() {
        return null;
    }

    private void fireException(Throwable cause) {
        // Only fire the exception if the channel is open and registered
        // if not the pipeline is not setup and so it would hit the tail
        // of the pipeline.
        // See https://github.com/netty/netty/issues/1517
        if (fireException && channel.isRegistered()) {
            channel.pipeline().fireExceptionCaught(cause);
        }
    }
}