| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * Licensed 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.onosproject.bgp.controller.impl; |
| |
| import static org.onlab.util.Tools.groupedThreads; |
| |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.RuntimeMXBean; |
| import java.net.InetSocketAddress; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.Executors; |
| |
| import org.jboss.netty.bootstrap.ServerBootstrap; |
| import org.jboss.netty.channel.ChannelPipelineFactory; |
| import org.jboss.netty.channel.group.ChannelGroup; |
| import org.jboss.netty.channel.group.DefaultChannelGroup; |
| import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * The main controller class. Handles all setup and network listeners - Distributed ownership control of bgp peer |
| * through IControllerRegistryService |
| */ |
| public class Controller { |
| |
| protected static final Logger log = LoggerFactory.getLogger(Controller.class); |
| |
| private ChannelGroup cg; |
| |
| // Configuration options |
| private static final short BGP_PORT_NUM = 179; |
| private int workerThreads = 16; |
| |
| // Start time of the controller |
| protected long systemStartTime; |
| |
| private NioServerSocketChannelFactory serverExecFactory; |
| |
| // Perf. related configuration |
| protected static final int SEND_BUFFER_SIZE = 4 * 1024 * 1024; |
| |
| BGPControllerImpl bgpCtrlImpl; |
| |
| /** |
| * Constructor to initialize parameter. |
| * |
| * @param bgpCtrlImpl BGP controller Impl instance |
| */ |
| public Controller(BGPControllerImpl bgpCtrlImpl) { |
| this.bgpCtrlImpl = bgpCtrlImpl; |
| } |
| |
| // *************** |
| // Getters/Setters |
| // *************** |
| |
| /** |
| * To get system start time. |
| * |
| * @return system start time in milliseconds |
| */ |
| public long getSystemStartTime() { |
| return (this.systemStartTime); |
| } |
| |
| // ************** |
| // Initialization |
| // ************** |
| |
| /** |
| * Tell controller that we're ready to accept bgp peer connections. |
| */ |
| public void run() { |
| |
| try { |
| final ServerBootstrap bootstrap = createServerBootStrap(); |
| |
| bootstrap.setOption("reuseAddr", true); |
| bootstrap.setOption("child.keepAlive", true); |
| bootstrap.setOption("child.tcpNoDelay", true); |
| bootstrap.setOption("child.sendBufferSize", Controller.SEND_BUFFER_SIZE); |
| |
| ChannelPipelineFactory pfact = new BGPPipelineFactory(bgpCtrlImpl, true); |
| |
| bootstrap.setPipelineFactory(pfact); |
| InetSocketAddress sa = new InetSocketAddress(getBgpPortNum()); |
| cg = new DefaultChannelGroup(); |
| cg.add(bootstrap.bind(sa)); |
| log.info("Listening for Peer connection on {}", sa); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /** |
| * Creates server boot strap. |
| * |
| * @return ServerBootStrap |
| */ |
| private ServerBootstrap createServerBootStrap() { |
| |
| if (workerThreads == 0) { |
| serverExecFactory = new NioServerSocketChannelFactory( |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "boss-%d")), |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "worker-%d"))); |
| return new ServerBootstrap(serverExecFactory); |
| } else { |
| serverExecFactory = new NioServerSocketChannelFactory( |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "boss-%d")), |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "worker-%d")), |
| workerThreads); |
| return new ServerBootstrap(serverExecFactory); |
| } |
| } |
| |
| /** |
| * Initialize internal data structures. |
| */ |
| public void init() { |
| // These data structures are initialized here because other |
| // module's startUp() might be called before ours |
| this.systemStartTime = System.currentTimeMillis(); |
| } |
| |
| // ************** |
| // Utility methods |
| // ************** |
| |
| public Map<String, Long> getMemory() { |
| Map<String, Long> m = new HashMap<>(); |
| Runtime runtime = Runtime.getRuntime(); |
| m.put("total", runtime.totalMemory()); |
| m.put("free", runtime.freeMemory()); |
| return m; |
| } |
| |
| public Long getUptime() { |
| RuntimeMXBean rb = ManagementFactory.getRuntimeMXBean(); |
| return rb.getUptime(); |
| } |
| |
| /** |
| * Starts the BGP controller. |
| */ |
| public void start() { |
| log.info("Started"); |
| this.init(); |
| this.run(); |
| } |
| |
| /** |
| * Stops the BGP controller. |
| */ |
| public void stop() { |
| log.info("Stopped"); |
| serverExecFactory.shutdown(); |
| cg.close(); |
| } |
| |
| /** |
| * Returns port number. |
| * |
| * @return port number |
| */ |
| public static short getBgpPortNum() { |
| return BGP_PORT_NUM; |
| } |
| } |