com.hzmsc.scada.Jmtis.server.HttpHelloWorldServerHandler.java Source code

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Here is the source code for com.hzmsc.scada.Jmtis.server.HttpHelloWorldServerHandler.java

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/*
 * Copyright 2013 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 com.hzmsc.scada.Jmtis.server;

import com.hzmsc.scada.JmtisLE.model.JmtisMsg;
import com.hzmsc.scada.Jmtis.utils.ChannelMap;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.handler.codec.http.*;
import io.netty.util.AsciiString;

import static io.netty.handler.codec.http.HttpResponseStatus.CONTINUE;
import static io.netty.handler.codec.http.HttpResponseStatus.OK;
import static io.netty.handler.codec.http.HttpVersion.HTTP_1_1;

public class HttpHelloWorldServerHandler extends ChannelInboundHandlerAdapter {
    private static final byte[] CONTENT = { 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd' };

    private static final AsciiString CONTENT_TYPE = new AsciiString("Content-Type");
    private static final AsciiString CONTENT_LENGTH = new AsciiString("Content-Length");
    private static final AsciiString CONNECTION = new AsciiString("Connection");
    private static final AsciiString KEEP_ALIVE = new AsciiString("keep-alive");

    @Override
    public void channelReadComplete(ChannelHandlerContext ctx) {
        ctx.flush();
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) {
        if (msg instanceof HttpRequest) {
            HttpRequest req = (HttpRequest) msg;
            System.out.println(req);

            if (HttpUtil.is100ContinueExpected(req)) {
                ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE));
            }
            boolean keepAlive = HttpUtil.isKeepAlive(req);
            FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, Unpooled.wrappedBuffer(CONTENT));
            response.headers().set(CONTENT_TYPE, "text/plain");
            response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

            if (!keepAlive) {
                ctx.write(response).addListener(ChannelFutureListener.CLOSE);
            } else {
                response.headers().set(CONNECTION, KEEP_ALIVE);
                ctx.write(response);
            }
        }
        if (msg instanceof HttpContent) {
            HttpContent content = (HttpContent) msg;
            ByteBuf buf = content.content();
            System.out.println(buf.toString(io.netty.util.CharsetUtil.UTF_8));
            buf.release();
            System.out.println(ChannelMap.channelMap);
            Channel channel = ChannelMap.channelMap.get("null0");
            if (channel != null) {

                System.out.println(channel.id().asLongText());
                JmtisMsg jmtisMsg = new JmtisMsg("clientCompany", (short) 1, (short) 1, (short) 1, (short) 1,
                        new int[] { 1, 2, 3, 4, 5 });
                //System.out.println(jmtisMsg);
                System.out.println(ctx.channel().id().asLongText());
                channel.writeAndFlush(jmtisMsg);
                channel.write(jmtisMsg);
                channel.flush();
            } else {
                System.out.println("there is no active channel.......");
            }
            //JmtisMsg jmtisMsg = new JmtisMsg("clientCompany", (short)1, (short)1, (short)1, (short)1, new int[]{1, 2, 3, 4, 5});
            //System.out.println(jmtisMsg);
            //channel.write(jmtisMsg);

        }
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
        cause.printStackTrace();
        ctx.close();
    }
}