io.maelstorm.server.ShutDownEndpoint.java Source code

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Here is the source code for io.maelstorm.server.ShutDownEndpoint.java

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/*
 * 
 * This file is part of Http-Server
 * Copyright (C) 2013  Jatinder
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 * 
 * This library 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
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this library; If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package io.maelstorm.server;

import io.maelstorm.netty.HttpObjectAggregator.AggregatedFullHttpRequest;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.http.DefaultFullHttpResponse;
import io.netty.handler.codec.http.FullHttpResponse;
import io.netty.handler.codec.http.HttpHeaders;
import io.netty.handler.codec.http.HttpResponseStatus;

import com.stumbleupon.async.Deferred;

/**
 * @author Jatinder
 *
 * Endpoint to shutdown server
 *
 */
public abstract class ShutDownEndpoint extends RequestHandler implements IEndPoint {

    private static final String resp = "Accepted ShutDown Request";

    public Deferred<FullHttpResponse> process(ChannelHandlerContext context, AggregatedFullHttpRequest request) {
        ByteBuf buffer = context.alloc().buffer(resp.length());
        buffer.writeBytes(resp.getBytes());
        FullHttpResponse response = new DefaultFullHttpResponse(request.getProtocolVersion(), HttpResponseStatus.OK,
                buffer);
        response.headers().set(HttpHeaders.Names.CONTENT_TYPE, "text/html");
        Deferred<FullHttpResponse> deferred = new Deferred<FullHttpResponse>();
        deferred.callback(response);
        shutDownGracefully();
        super.doShutdown();
        return deferred;
    }

    public abstract void shutDownGracefully();
}