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The Netty project is an effort to provide an asynchronous event-driven network application framework and tools for rapid development of maintainable high performance and high scalability protocol servers and clients. In other words, Netty is a NIO client server framework which enables quick and easy development of network applications such as protocol servers and clients. It greatly simplifies and streamlines network programming such as TCP and UDP socket server.

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/*
 * 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 org.jboss.netty.handler.timeout;

import static org.jboss.netty.channel.Channels.*;

import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;

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

/**
 * The default {@link IdleStateEvent} implementation.
 */
public class DefaultIdleStateEvent implements IdleStateEvent {

    private final Channel channel;
    private final IdleState state;
    private final long lastActivityTimeMillis;

    /**
     * Creates a new instance.
     */
    public DefaultIdleStateEvent(
            Channel channel, IdleState state, long lastActivityTimeMillis) {
        if (channel == null) {
            throw new NullPointerException("channel");
        }
        if (state == null) {
            throw new NullPointerException("state");
        }
        this.channel = channel;
        this.state = state;
        this.lastActivityTimeMillis = lastActivityTimeMillis;
    }

    public Channel getChannel() {
        return channel;
    }

    public ChannelFuture getFuture() {
        return succeededFuture(getChannel());
    }

    public IdleState getState() {
        return state;
    }

    public long getLastActivityTimeMillis() {
        return lastActivityTimeMillis;
    }

    @Override
    public String toString() {
        return getChannel().toString() + ' ' + getState() + " since " +
               DateFormat.getDateTimeInstance(
                       DateFormat.SHORT, DateFormat.SHORT, Locale.US).format(
                               new Date(getLastActivityTimeMillis()));
    }
}