Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 1 | package net.onrc.onos.ofcontroller.networkgraph; |
| 2 | |
| 3 | import java.util.ArrayList; |
| 4 | import java.util.List; |
| 5 | |
| 6 | import net.onrc.onos.datastore.RCObject; |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 7 | import net.onrc.onos.datastore.RCObject.WriteOp; |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 8 | import net.onrc.onos.datastore.topology.RCLink; |
| 9 | import net.onrc.onos.datastore.topology.RCPort; |
| 10 | import net.onrc.onos.datastore.topology.RCSwitch; |
| 11 | |
| 12 | import org.slf4j.Logger; |
| 13 | import org.slf4j.LoggerFactory; |
| 14 | |
| 15 | import edu.stanford.ramcloud.JRamCloud.ObjectDoesntExistException; |
| 16 | import edu.stanford.ramcloud.JRamCloud.ObjectExistsException; |
| 17 | import edu.stanford.ramcloud.JRamCloud.WrongVersionException; |
| 18 | |
| 19 | /** |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 20 | * The southbound interface to the network graph which allows clients to |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 21 | * mutate the graph. This class will maintain the invariants of the network |
| 22 | * graph. The southbound discovery modules will use this interface to update |
| 23 | * the network graph as they learn about the state of the network. |
| 24 | * |
Yuta HIGUCHI | 181d34d | 2014-02-05 15:05:46 -0800 | [diff] [blame] | 25 | * Modification to the Network Map by this module will: |
| 26 | * 1. Writes to Cluster-wide DataStore. |
| 27 | * 2. Update ONOS instance In-memory Network Map. |
| 28 | * 3. Send-out Notification. (TBD) |
| 29 | * (XXX: To update other instances In-memory Network Map, |
| 30 | * notification should be triggered here. |
| 31 | * But if we want to aggregate notification to minimize notification, |
| 32 | * It might be better for the caller to trigger notification.) |
| 33 | * |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 34 | */ |
| 35 | public class SouthboundNetworkGraph { |
| 36 | private static final Logger log = LoggerFactory.getLogger(SouthboundNetworkGraph.class); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 37 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 38 | private static final int NUM_RETRIES = 10; |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 39 | |
| 40 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 41 | public void addSwitch(Switch sw) { |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 42 | |
| 43 | ArrayList<WriteOp> groupOp = new ArrayList<>(); |
| 44 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 45 | RCSwitch rcSwitch = new RCSwitch(sw.getDpid()); |
| 46 | rcSwitch.setStatus(RCSwitch.STATUS.ACTIVE); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 47 | |
| 48 | // XXX Is ForceCreating Switch on DB OK here? |
| 49 | // If ForceCreating, who ever is calling this method needs |
| 50 | // to assure that DPID is unique cluster-wide, etc. |
| 51 | groupOp.add(WriteOp.ForceCreate(rcSwitch)); |
| 52 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 53 | for (Port port : sw.getPorts()) { |
| 54 | RCPort rcPort = new RCPort(sw.getDpid(), (long)port.getNumber()); |
| 55 | rcPort.setStatus(RCPort.STATUS.ACTIVE); |
| 56 | rcSwitch.addPortId(rcPort.getId()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 57 | |
| 58 | groupOp.add(WriteOp.ForceCreate(rcPort)); |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 59 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 60 | |
| 61 | boolean failed = RCObject.multiWrite( groupOp ); |
| 62 | |
| 63 | if ( failed ) { |
| 64 | log.error("Adding Switch {} and it's ports failed.", sw.getDpid()); |
| 65 | for ( WriteOp op : groupOp ) { |
| 66 | log.debug("Operation:{} for {} - Result:{}", op.getOp(), op.getObject(), op.getStatus() ); |
| 67 | |
| 68 | // If we changed the operation from ForceCreate to |
| 69 | // Conditional operation (Create/Update) then we should retry here. |
| 70 | } |
| 71 | } |
| 72 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 73 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 74 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 75 | public void deactivateSwitch(Switch sw) { |
| 76 | RCSwitch rcSwitch = new RCSwitch(sw.getDpid()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 77 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 78 | List<RCObject> objectsToDeactive = new ArrayList<RCObject>(); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 79 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 80 | for (int i = 0; i < NUM_RETRIES; i++) { |
| 81 | try { |
| 82 | rcSwitch.read(); |
| 83 | rcSwitch.setStatus(RCSwitch.STATUS.INACTIVE); |
| 84 | objectsToDeactive.add(rcSwitch); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 85 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 86 | for (Port p : sw.getPorts()) { |
| 87 | RCPort rcPort = new RCPort(sw.getDpid(), (long)p.getNumber()); |
| 88 | rcPort.read(); |
| 89 | rcPort.setStatus(RCPort.STATUS.INACTIVE); |
| 90 | objectsToDeactive.add(rcPort); |
| 91 | } |
| 92 | } catch (ObjectDoesntExistException e) { |
| 93 | log.warn("Trying to deactivate an object that doesn't exist", e); |
| 94 | // We don't care to much if the object wasn't there, it's |
| 95 | // being deactivated anyway |
| 96 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 97 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 98 | try { |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 99 | for (RCObject rcObject : objectsToDeactive) { |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 100 | rcObject.update(); |
| 101 | } |
| 102 | break; |
| 103 | } catch (ObjectDoesntExistException e) { |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 104 | // Unlikely, and we don't care anyway. |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 105 | // TODO But, this will cause everything else to fail |
| 106 | log.warn("Trying to deactivate object that doesn't exist", e); |
| 107 | } catch (WrongVersionException e) { |
| 108 | // Need to re-read and retry |
| 109 | } |
| 110 | } |
| 111 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 112 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 113 | public void addPort(Switch sw, Port port) { |
| 114 | RCSwitch rcSwitch = new RCSwitch(sw.getDpid()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 115 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 116 | try { |
| 117 | rcSwitch.read(); |
| 118 | } catch (ObjectDoesntExistException e) { |
| 119 | log.warn("Add port failed because switch {} doesn't exist", sw.getDpid(), e); |
| 120 | return; |
| 121 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 122 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 123 | RCPort rcPort = new RCPort(port.getSwitch().getDpid(), (long)port.getNumber()); |
| 124 | rcPort.setStatus(RCPort.STATUS.ACTIVE); |
| 125 | rcSwitch.addPortId(rcPort.getId()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 126 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 127 | writeObject(rcPort); |
| 128 | writeObject(rcSwitch); |
| 129 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 130 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 131 | public void deactivatePort(Port port) { |
| 132 | RCPort rcPort = new RCPort(port.getSwitch().getDpid(), (long)port.getNumber()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 133 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 134 | for (int i = 0; i < NUM_RETRIES; i++) { |
| 135 | try { |
| 136 | rcPort.read(); |
| 137 | } catch (ObjectDoesntExistException e) { |
| 138 | // oh well, we were deactivating anyway |
| 139 | log.warn("Trying to deactivate a port that doesn't exist: {}", port); |
| 140 | return; |
| 141 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 142 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 143 | rcPort.setStatus(RCPort.STATUS.INACTIVE); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 144 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 145 | try { |
| 146 | rcPort.update(); |
| 147 | break; |
| 148 | } catch (ObjectDoesntExistException | WrongVersionException e) { |
| 149 | // retry |
| 150 | } |
| 151 | } |
| 152 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 153 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 154 | public void addLink(Link link) { |
| 155 | RCLink rcLink = new RCLink(link.getSourceSwitchDpid(), (long)link.getSourcePortNumber(), |
| 156 | link.getDestinationSwitchDpid(), (long)link.getDestinationPortNumber()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 157 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 158 | RCPort rcSrcPort = new RCPort(link.getSourceSwitchDpid(), (long)link.getSourcePortNumber()); |
| 159 | RCPort rcDstPort = new RCPort(link.getDestinationSwitchDpid(), (long)link.getDestinationPortNumber()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 160 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 161 | for (int i = 0; i < NUM_RETRIES; i++) { |
| 162 | try { |
| 163 | rcSrcPort.read(); |
| 164 | rcDstPort.read(); |
| 165 | rcLink.create(); |
| 166 | } catch (ObjectDoesntExistException e) { |
| 167 | // port doesn't exist |
| 168 | log.error("Add link failed {}", link, e); |
| 169 | return; |
| 170 | } catch (ObjectExistsException e) { |
| 171 | log.debug("Link already exists {}", link); |
| 172 | return; |
| 173 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 174 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 175 | rcSrcPort.addLinkId(rcLink.getId()); |
| 176 | rcDstPort.addLinkId(rcLink.getId()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 177 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 178 | rcLink.setStatus(RCLink.STATUS.ACTIVE); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 179 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 180 | try { |
| 181 | rcLink.update(); |
| 182 | rcSrcPort.update(); |
| 183 | rcDstPort.update(); |
| 184 | break; |
| 185 | } catch (ObjectDoesntExistException | WrongVersionException e) { |
| 186 | log.debug(" ", e); |
| 187 | // retry |
| 188 | } |
| 189 | } |
| 190 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 191 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 192 | public void removeLink(Link link) { |
| 193 | RCLink rcLink = new RCLink(link.getSourceSwitchDpid(), (long)link.getSourcePortNumber(), |
| 194 | link.getDestinationSwitchDpid(), (long)link.getDestinationPortNumber()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 195 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 196 | RCPort rcSrcPort = new RCPort(link.getSourceSwitchDpid(), (long)link.getSourcePortNumber()); |
| 197 | RCPort rcDstPort = new RCPort(link.getDestinationSwitchDpid(), (long)link.getDestinationPortNumber()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 198 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 199 | for (int i = 0; i < NUM_RETRIES; i++) { |
| 200 | try { |
| 201 | rcSrcPort.read(); |
| 202 | rcDstPort.read(); |
| 203 | rcLink.read(); |
| 204 | } catch (ObjectDoesntExistException e) { |
| 205 | log.error("Remove link failed {}", link, e); |
| 206 | return; |
| 207 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 208 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 209 | rcSrcPort.removeLinkId(rcLink.getId()); |
| 210 | rcDstPort.removeLinkId(rcLink.getId()); |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 211 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 212 | try { |
| 213 | rcSrcPort.update(); |
| 214 | rcDstPort.update(); |
| 215 | rcLink.delete(); |
| 216 | } catch (ObjectDoesntExistException e) { |
| 217 | log.error("Remove link failed {}", link, e); |
| 218 | return; |
| 219 | } catch (WrongVersionException e) { |
| 220 | // retry |
| 221 | } |
| 222 | } |
| 223 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 224 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 225 | public void updateDevice(Device device) { |
| 226 | // TODO implement |
| 227 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 228 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 229 | public void removeDevice(Device device) { |
| 230 | // TODO implement |
| 231 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 232 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 233 | // TODO what happens if this fails? why could it fail? |
| 234 | private void writeObject(RCObject object) { |
| 235 | for (int i = 0; i < NUM_RETRIES; i++) { |
| 236 | try { |
| 237 | object.create(); |
| 238 | } catch (ObjectExistsException e) { |
| 239 | try { |
| 240 | object.read(); |
| 241 | } catch (ObjectDoesntExistException e1) { |
| 242 | // TODO Auto-generated catch block |
| 243 | log.error(" ", e); |
| 244 | return; |
| 245 | } |
| 246 | } |
Yuta HIGUCHI | b4335ad | 2014-02-05 09:56:07 -0800 | [diff] [blame] | 247 | |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 248 | try { |
| 249 | // TODO check API for writing without caring what's there |
| 250 | object.update(); |
| 251 | break; |
| 252 | } catch (ObjectDoesntExistException | WrongVersionException e) { |
| 253 | log.debug(" ", e); |
| 254 | // re-read and retry |
| 255 | } |
| 256 | } |
| 257 | } |
| 258 | } |