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/*
 * Copyright (c) 2014 "Kaazing Corporation," (www.kaazing.com)
 *
 * This file is part of Robot.
 *
 * Robot is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see .
 */

package org.kaazing.robot.driver.netty.channel;

import static java.util.Objects.requireNonNull;
import static org.jboss.netty.channel.Channels.succeededFuture;

import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFuture;

final class UpstreamFlushEvent implements FlushEvent {

    private final Channel channel;

    UpstreamFlushEvent(
            Channel channel) {
        requireNonNull(channel);
        this.channel = channel;
    }

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

    @Override
    public ChannelFuture getFuture() {
        return succeededFuture(channel);
    }

    @Override
    public String toString() {
        String channelString = getChannel().toString();
        StringBuilder buf = new StringBuilder(channelString.length() + 64);
        buf.append(channelString);
        buf.append(" FLUSHED");
        return buf.toString();
    }

}