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