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Diffstat (limited to 'framework/src/onos/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/Controller.java')
| -rwxr-xr-x | framework/src/onos/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/Controller.java | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/Controller.java b/framework/src/onos/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/Controller.java new file mode 100755 index 00000000..f02cee8a --- /dev/null +++ b/framework/src/onos/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/Controller.java @@ -0,0 +1,254 @@ +/* + * 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.ClientBootstrap; +import org.jboss.netty.bootstrap.ServerBootstrap; +import org.jboss.netty.channel.Channel; +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.NioClientSocketChannelFactory; +import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory; +import org.onosproject.bgp.controller.BgpController; +import org.onosproject.bgpio.protocol.BgpFactories; +import org.onosproject.bgpio.protocol.BgpFactory; +import org.onosproject.bgpio.protocol.BgpVersion; +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 { + + private static final Logger log = LoggerFactory.getLogger(Controller.class); + + private static final BgpFactory FACTORY4 = BgpFactories.getFactory(BgpVersion.BGP_4); + + private ChannelGroup cg; + public Channel serverChannel; + + // Configuration options + private static final short BGP_PORT_NUM = 179; + private static final short PORT_NUM_ZERO = 0; + private static boolean isPortNumSet = false; + private final int workerThreads = 16; + private final int peerWorkerThreads = 16; + + // Start time of the controller + private long systemStartTime; + + private NioServerSocketChannelFactory serverExecFactory; + private NioClientSocketChannelFactory peerExecFactory; + private static ClientBootstrap peerBootstrap; + private BgpController bgpController; + + // Perf. related configuration + private static final int SEND_BUFFER_SIZE = 4 * 1024 * 1024; + + /** + * Constructor to initialize the values. + * + * @param bgpController bgp controller instance + */ + public Controller(BgpController bgpController) { + this.bgpController = bgpController; + } + + /** + * Returns factory version for processing BGP messages. + * + * @return instance of factory version + */ + static BgpFactory getBgpMessageFactory4() { + return FACTORY4; + } + + /** + * To get system start time. + * + * @return system start time in milliseconds + */ + public long getSystemStartTime() { + return (this.systemStartTime); + } + + /** + * Tell controller that we're ready to accept bgp peer connections. + */ + public void run() { + + try { + + peerBootstrap = createPeerBootStrap(); + + peerBootstrap.setOption("reuseAddr", true); + peerBootstrap.setOption("child.keepAlive", true); + peerBootstrap.setOption("child.tcpNoDelay", true); + peerBootstrap.setOption("child.sendBufferSize", Controller.SEND_BUFFER_SIZE); + + 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(bgpController, true); + + bootstrap.setPipelineFactory(pfact); + InetSocketAddress sa = new InetSocketAddress(getBgpPortNum()); + cg = new DefaultChannelGroup(); + serverChannel = bootstrap.bind(sa); + cg.add(serverChannel); + 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); + } + } + + /** + * Creates peer boot strap. + * + * @return ClientBootstrap + */ + private ClientBootstrap createPeerBootStrap() { + + if (peerWorkerThreads == 0) { + peerExecFactory = new NioClientSocketChannelFactory( + Executors.newCachedThreadPool(groupedThreads("onos/bgp", "boss-%d")), + Executors.newCachedThreadPool(groupedThreads("onos/bgp", "worker-%d"))); + return new ClientBootstrap(peerExecFactory); + } else { + peerExecFactory = new NioClientSocketChannelFactory( + Executors.newCachedThreadPool(groupedThreads("onos/bgp", "boss-%d")), + Executors.newCachedThreadPool(groupedThreads("onos/bgp", "worker-%d")), + peerWorkerThreads); + return new ClientBootstrap(peerExecFactory); + } + } + + /** + * Gets peer bootstrap. + * + * @return peer bootstrap + */ + public static ClientBootstrap peerBootstrap() { + return peerBootstrap; + } + + /** + * 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(); + } + + /** + * Gets run time memory. + * + * @return m run time memory + */ + 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; + } + + /** + * Gets UP time. + * + * @return UP time + */ + 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(); + peerExecFactory.shutdown(); + cg.close(); + } + + /** + * Returns port number. + * + * @return port number + */ + public static short getBgpPortNum() { + if (isPortNumSet) { + return PORT_NUM_ZERO; + } + return BGP_PORT_NUM; + } + + /** + * sets the isPortNumSet as true. + */ + public void setBgpPortNum() { + isPortNumSet = true; + } +}
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