Dimitrios Mavrommatis | f0c0632 | 2017-10-31 23:49:04 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.artemis.impl.moas; |
| 18 | |
| 19 | import com.google.common.annotations.Beta; |
| 20 | import io.netty.bootstrap.ServerBootstrap; |
| 21 | import io.netty.channel.ChannelFuture; |
| 22 | import io.netty.channel.ChannelInitializer; |
| 23 | import io.netty.channel.ChannelOption; |
| 24 | import io.netty.channel.EventLoopGroup; |
| 25 | import io.netty.channel.nio.NioEventLoopGroup; |
| 26 | import io.netty.channel.socket.SocketChannel; |
| 27 | import io.netty.channel.socket.nio.NioServerSocketChannel; |
| 28 | import org.apache.commons.lang.exception.ExceptionUtils; |
| 29 | import org.onosproject.artemis.ArtemisMoasAgent; |
| 30 | import org.onosproject.artemis.ArtemisPacketProcessor; |
| 31 | import org.slf4j.Logger; |
| 32 | import org.slf4j.LoggerFactory; |
| 33 | |
| 34 | |
| 35 | /** |
| 36 | * MOAS Server Controller. |
| 37 | */ |
| 38 | @Beta |
| 39 | public class MoasServerController { |
| 40 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 41 | |
| 42 | protected ArtemisMoasAgent deviceAgent; |
| 43 | protected ArtemisPacketProcessor packetAgent; |
| 44 | |
| 45 | private EventLoopGroup bossGroup; |
| 46 | private EventLoopGroup workerGroup; |
| 47 | private ChannelFuture channel; |
| 48 | private int port = 32323; |
| 49 | |
| 50 | private boolean isRunning = false; |
| 51 | |
| 52 | /** |
| 53 | * Run the MOAS Servcer. |
| 54 | */ |
| 55 | private void run() { |
| 56 | final MoasServerController ctrl = this; |
| 57 | try { |
| 58 | final ServerBootstrap bootstrap = createServerBootStrap(); |
| 59 | |
| 60 | bootstrap.childHandler(new ChannelInitializer<SocketChannel>() { |
| 61 | @Override |
| 62 | public void initChannel(SocketChannel ch) throws Exception { |
| 63 | ch.pipeline().addLast( |
| 64 | new MoasServerHandler(ctrl) |
| 65 | ); |
| 66 | } |
| 67 | }); |
| 68 | |
| 69 | channel = bootstrap.bind(port).sync(); |
| 70 | isRunning = true; |
| 71 | } catch (Exception e) { |
| 72 | log.warn(ExceptionUtils.getFullStackTrace(e)); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Create netty server bootstrap. |
| 78 | * |
| 79 | * @return bootstrap |
| 80 | * @throws Exception exception |
| 81 | */ |
| 82 | private ServerBootstrap createServerBootStrap() throws Exception { |
| 83 | try { |
| 84 | bossGroup = new NioEventLoopGroup(); |
| 85 | workerGroup = new NioEventLoopGroup(); |
| 86 | |
| 87 | return new ServerBootstrap() |
| 88 | .group(bossGroup, workerGroup) |
| 89 | .channel(NioServerSocketChannel.class) |
| 90 | .option(ChannelOption.SO_REUSEADDR, true) |
| 91 | .childOption(ChannelOption.SO_KEEPALIVE, true) |
| 92 | .childOption(ChannelOption.TCP_NODELAY, true); |
| 93 | } catch (Exception e) { |
| 94 | throw new Exception(e); |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * Start Server Controller and initialize agents. |
| 100 | * |
| 101 | * @param deviceAgent device agent |
| 102 | * @param packetAgent packet agen |
| 103 | */ |
| 104 | public void start(ArtemisMoasAgent deviceAgent, ArtemisPacketProcessor packetAgent) { |
| 105 | if (isRunning) { |
| 106 | stop(); |
| 107 | this.deviceAgent = deviceAgent; |
| 108 | this.packetAgent = packetAgent; |
| 109 | run(); |
| 110 | } else { |
| 111 | this.deviceAgent = deviceAgent; |
| 112 | this.packetAgent = packetAgent; |
| 113 | run(); |
| 114 | } |
| 115 | isRunning = true; |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Stop Server Controller. |
| 120 | */ |
| 121 | public void stop() { |
| 122 | if (isRunning) { |
| 123 | channel.channel().close(); |
| 124 | bossGroup.shutdownGracefully(); |
| 125 | workerGroup.shutdownGracefully(); |
| 126 | isRunning = false; |
| 127 | } |
| 128 | } |
| 129 | } |