Thomas Vachuska | 58de416 | 2015-09-10 16:15:33 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 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 | */ |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 16 | package org.onosproject.store.cluster.impl; |
| 17 | |
Jonathan Hart | 052a6c5 | 2015-07-16 14:10:10 -0700 | [diff] [blame] | 18 | import com.google.common.collect.ImmutableSet; |
| 19 | import com.google.common.collect.Sets; |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 20 | import org.apache.felix.scr.annotations.Activate; |
| 21 | import org.apache.felix.scr.annotations.Component; |
| 22 | import org.apache.felix.scr.annotations.Deactivate; |
| 23 | import org.apache.felix.scr.annotations.Service; |
| 24 | import org.onlab.packet.IpAddress; |
| 25 | import org.onosproject.cluster.ClusterDefinitionService; |
| 26 | import org.onosproject.cluster.ControllerNode; |
| 27 | import org.onosproject.cluster.DefaultControllerNode; |
| 28 | import org.onosproject.cluster.NodeId; |
| 29 | import org.onosproject.store.consistent.impl.DatabaseDefinition; |
| 30 | import org.onosproject.store.consistent.impl.DatabaseDefinitionStore; |
| 31 | import org.slf4j.Logger; |
| 32 | |
Jonathan Hart | 052a6c5 | 2015-07-16 14:10:10 -0700 | [diff] [blame] | 33 | import java.io.File; |
| 34 | import java.io.IOException; |
| 35 | import java.net.InetAddress; |
| 36 | import java.net.NetworkInterface; |
| 37 | import java.net.SocketException; |
| 38 | import java.util.Enumeration; |
| 39 | import java.util.Set; |
| 40 | import java.util.stream.Collectors; |
| 41 | |
| 42 | import static java.net.NetworkInterface.getNetworkInterfaces; |
| 43 | import static java.util.Collections.list; |
| 44 | import static org.onosproject.cluster.DefaultControllerNode.DEFAULT_PORT; |
| 45 | import static org.onosproject.store.consistent.impl.DatabaseManager.PARTITION_DEFINITION_FILE; |
| 46 | import static org.slf4j.LoggerFactory.getLogger; |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 47 | |
| 48 | /** |
| 49 | * Implementation of ClusterDefinitionService. |
| 50 | */ |
| 51 | @Component(immediate = true) |
| 52 | @Service |
| 53 | public class ClusterDefinitionManager implements ClusterDefinitionService { |
| 54 | |
| 55 | public static final String CLUSTER_DEFINITION_FILE = "../config/cluster.json"; |
| 56 | private static final String ONOS_NIC = "ONOS_NIC"; |
| 57 | private static final Logger log = getLogger(ClusterDefinitionManager.class); |
| 58 | private ControllerNode localNode; |
| 59 | private Set<ControllerNode> seedNodes; |
| 60 | |
| 61 | @Activate |
| 62 | public void activate() { |
| 63 | File clusterDefinitionFile = new File(CLUSTER_DEFINITION_FILE); |
| 64 | ClusterDefinitionStore clusterDefinitionStore = |
| 65 | new ClusterDefinitionStore(clusterDefinitionFile.getPath()); |
| 66 | |
| 67 | if (!clusterDefinitionFile.exists()) { |
| 68 | createDefaultClusterDefinition(clusterDefinitionStore); |
| 69 | } |
| 70 | |
| 71 | try { |
| 72 | ClusterDefinition clusterDefinition = clusterDefinitionStore.read(); |
| 73 | establishSelfIdentity(clusterDefinition); |
| 74 | seedNodes = ImmutableSet |
| 75 | .copyOf(clusterDefinition.getNodes()) |
| 76 | .stream() |
| 77 | .filter(n -> !localNode.id().equals(new NodeId(n.getId()))) |
| 78 | .map(n -> new DefaultControllerNode(new NodeId(n.getId()), |
| 79 | IpAddress.valueOf(n.getIp()), |
| 80 | n.getTcpPort())) |
| 81 | .collect(Collectors.toSet()); |
| 82 | } catch (IOException e) { |
| 83 | throw new IllegalStateException("Failed to read cluster definition.", e); |
| 84 | } |
| 85 | |
| 86 | log.info("Started"); |
| 87 | } |
| 88 | |
| 89 | @Deactivate |
| 90 | public void deactivate() { |
| 91 | log.info("Stopped"); |
| 92 | } |
| 93 | |
| 94 | @Override |
| 95 | public ControllerNode localNode() { |
| 96 | return localNode; |
| 97 | } |
| 98 | |
| 99 | @Override |
| 100 | public Set<ControllerNode> seedNodes() { |
| 101 | return seedNodes; |
| 102 | } |
| 103 | |
| 104 | @Override |
| 105 | public void formCluster(Set<ControllerNode> nodes, String ipPrefix) { |
| 106 | try { |
| 107 | Set<NodeInfo> infos = Sets.newHashSet(); |
| 108 | nodes.forEach(n -> infos.add(NodeInfo.from(n.id().toString(), |
| 109 | n.ip().toString(), |
| 110 | n.tcpPort()))); |
| 111 | |
| 112 | ClusterDefinition cdef = ClusterDefinition.from(infos, ipPrefix); |
| 113 | new ClusterDefinitionStore(CLUSTER_DEFINITION_FILE).write(cdef); |
| 114 | |
| 115 | DatabaseDefinition ddef = DatabaseDefinition.from(infos); |
| 116 | new DatabaseDefinitionStore(PARTITION_DEFINITION_FILE).write(ddef); |
| 117 | } catch (IOException e) { |
| 118 | log.error("Unable to form cluster", e); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | private IpAddress findLocalIp(ClusterDefinition clusterDefinition) throws SocketException { |
| 123 | Enumeration<NetworkInterface> interfaces = |
| 124 | NetworkInterface.getNetworkInterfaces(); |
| 125 | while (interfaces.hasMoreElements()) { |
| 126 | NetworkInterface iface = interfaces.nextElement(); |
| 127 | Enumeration<InetAddress> inetAddresses = iface.getInetAddresses(); |
| 128 | while (inetAddresses.hasMoreElements()) { |
| 129 | IpAddress ip = IpAddress.valueOf(inetAddresses.nextElement()); |
Jonathan Hart | 052a6c5 | 2015-07-16 14:10:10 -0700 | [diff] [blame] | 130 | if (clusterDefinition.getNodes().stream() |
| 131 | .map(NodeInfo::getIp) |
| 132 | .map(IpAddress::valueOf) |
| 133 | .anyMatch(nodeIp -> ip.equals(nodeIp))) { |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 134 | return ip; |
| 135 | } |
| 136 | } |
| 137 | } |
| 138 | throw new IllegalStateException("Unable to determine local ip"); |
| 139 | } |
| 140 | |
| 141 | private void establishSelfIdentity(ClusterDefinition clusterDefinition) { |
| 142 | try { |
| 143 | IpAddress ip = findLocalIp(clusterDefinition); |
| 144 | localNode = new DefaultControllerNode(new NodeId(ip.toString()), ip); |
| 145 | } catch (SocketException e) { |
| 146 | throw new IllegalStateException("Cannot determine local IP", e); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | private void createDefaultClusterDefinition(ClusterDefinitionStore store) { |
| 151 | // Assumes IPv4 is returned. |
| 152 | String ip = getSiteLocalAddress(); |
| 153 | String ipPrefix = ip.replaceFirst("\\.[0-9]*$", ".*"); |
| 154 | NodeInfo node = NodeInfo.from(ip, ip, DEFAULT_PORT); |
| 155 | try { |
| 156 | store.write(ClusterDefinition.from(ImmutableSet.of(node), ipPrefix)); |
| 157 | } catch (IOException e) { |
| 158 | log.warn("Unable to write default cluster definition", e); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Returns the address that matches the IP prefix given in ONOS_NIC |
| 164 | * environment variable if one was specified, or the first site local |
| 165 | * address if one can be found or the loopback address otherwise. |
| 166 | * |
| 167 | * @return site-local address in string form |
| 168 | */ |
| 169 | public static String getSiteLocalAddress() { |
| 170 | try { |
| 171 | String ipPrefix = System.getenv(ONOS_NIC); |
| 172 | for (NetworkInterface nif : list(getNetworkInterfaces())) { |
| 173 | for (InetAddress address : list(nif.getInetAddresses())) { |
| 174 | IpAddress ip = IpAddress.valueOf(address); |
| 175 | if (ipPrefix == null && address.isSiteLocalAddress() || |
| 176 | ipPrefix != null && matchInterface(ip.toString(), ipPrefix)) { |
| 177 | return ip.toString(); |
| 178 | } |
| 179 | } |
| 180 | } |
| 181 | } catch (SocketException e) { |
| 182 | log.error("Unable to get network interfaces", e); |
| 183 | } |
| 184 | |
| 185 | return IpAddress.valueOf(InetAddress.getLoopbackAddress()).toString(); |
| 186 | } |
Thomas Vachuska | ba082b8 | 2015-05-20 13:47:38 -0700 | [diff] [blame] | 187 | |
| 188 | // Indicates whether the specified interface address matches the given prefix. |
| 189 | // FIXME: Add a facility to IpPrefix to make this more robust |
| 190 | private static boolean matchInterface(String ip, String ipPrefix) { |
| 191 | String s = ipPrefix.replaceAll("\\.\\*", ""); |
| 192 | return ip.startsWith(s); |
| 193 | } |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 194 | } |