renderers/ofoverlay/src/main/java/org/opendaylight/groupbasedpolicy/renderer/ofoverlay/node/FlowCapableNodeConnectorListener.java

   1 package org.opendaylight.groupbasedpolicy.renderer.ofoverlay.node;
   2
   3 import com.google.common.base.Objects;
   4 import com.google.common.base.Optional;
   5 import com.google.common.util.concurrent.Futures;
   6 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
   7 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
   8 import org.opendaylight.controller.md.sal.binding.api.ReadTransaction;
   9 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  10 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  11 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  12 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.Name;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.Endpoints;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.Endpoint;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointL3;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContext;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContextBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayL3Context;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayL3ContextBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  30 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  31 import org.opendaylight.yangtools.yang.binding.DataObject;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 import java.util.Collections;
  37 import java.util.HashMap;
  38 import java.util.Map;
  39 import java.util.Map.Entry;
  40
  41 import static com.google.common.base.Preconditions.checkNotNull;
  42
  43 public class FlowCapableNodeConnectorListener implements DataChangeListener, AutoCloseable {
  44
  45     private static final Logger LOG = LoggerFactory.getLogger(FlowCapableNodeConnectorListener.class);
  46
  47     private final static InstanceIdentifier<FlowCapableNodeConnector> fcNodeConnectorIid = InstanceIdentifier.builder(
  48             Nodes.class)
  49         .child(Node.class)
  50         .child(NodeConnector.class)
  51         .augmentation(FlowCapableNodeConnector.class)
  52         .build();
  53     private final static InstanceIdentifier<Endpoints> endpointsIid = InstanceIdentifier.builder(Endpoints.class)
  54         .build();
  55     private final DataBroker dataProvider;
  56     private final SwitchManager switchManager;
  57     private final ListenerRegistration<DataChangeListener> listenerRegistration;
  58
  59     public FlowCapableNodeConnectorListener(DataBroker dataProvider, SwitchManager switchManager) {
  60         this.dataProvider = checkNotNull(dataProvider);
  61         this.switchManager = checkNotNull(switchManager);
  62         listenerRegistration = dataProvider.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
  63                 fcNodeConnectorIid, this, DataChangeScope.BASE);
  64     }
  65
  66     @Override
  67     public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  68         ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
  69
  70         //endpoint and endpoint L3 maps
  71         Map<Name, Endpoint> epWithOfOverlayAugByPortName = readEpsWithOfOverlayAugByPortName(rwTx);
  72         Map<Name, EndpointL3> l3EpWithOfOverlayAugByPortName = readL3EpsWithOfOverlayAugByPortName(rwTx);
  73
  74         boolean isDataPutToTx = false;
  75         for (Entry<InstanceIdentifier<?>, DataObject> fcncEntry : change.getCreatedData().entrySet()) {
  76             if (FlowCapableNodeConnector.class.equals(fcncEntry.getKey().getTargetType())) {
  77                 InstanceIdentifier<NodeConnector> ncIid = fcncEntry.getKey().firstIdentifierOf(NodeConnector.class);
  78                 FlowCapableNodeConnector fcnc = (FlowCapableNodeConnector) fcncEntry.getValue();
  79                 LOG.trace(
  80                         "FlowCapableNodeConnector created: NodeId: {} NodeConnectorId: {} FlowCapableNodeConnector: {}",
  81                         ncIid.firstKeyOf(Node.class, NodeKey.class).getId().getValue(),
  82                         ncIid.firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue(), fcnc);
  83                 switchManager.updateSwitchNodeConnectorConfig(ncIid, fcnc);
  84                 Name portName = getPortName(fcnc);
  85                 boolean updated = updateEpWithNodeConnectorInfo(epWithOfOverlayAugByPortName.get(portName), ncIid, rwTx);
  86                 boolean l3Updated = updateL3EpWithNodeConnectorInfo(l3EpWithOfOverlayAugByPortName.get(portName), ncIid, rwTx);
  87                 if (updated || l3Updated) {
  88                     isDataPutToTx = true;
  89                 }
  90             }
  91         }
  92         for (Entry<InstanceIdentifier<?>, DataObject> fcncEntry : change.getUpdatedData().entrySet()) {
  93             if (FlowCapableNodeConnector.class.equals(fcncEntry.getKey().getTargetType())) {
  94                 InstanceIdentifier<NodeConnector> ncIid = fcncEntry.getKey().firstIdentifierOf(NodeConnector.class);
  95                 FlowCapableNodeConnector fcnc = (FlowCapableNodeConnector) fcncEntry.getValue();
  96                 LOG.trace(
  97                         "FlowCapableNodeConnector updated: NodeId: {} NodeConnectorId: {} FlowCapableNodeConnector: {}",
  98                         ncIid.firstKeyOf(Node.class, NodeKey.class).getId().getValue(),
  99                         ncIid.firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue(), fcnc);
 100                 switchManager.updateSwitchNodeConnectorConfig(ncIid, fcnc);
 101                 Name portName = getPortName(fcnc);
 102                 boolean updated = updateEpWithNodeConnectorInfo(epWithOfOverlayAugByPortName.get(portName), ncIid, rwTx);
 103                 boolean l3Updated = updateL3EpWithNodeConnectorInfo(l3EpWithOfOverlayAugByPortName.get(portName), ncIid, rwTx);
 104                 if (updated || l3Updated) {
 105                     isDataPutToTx = true;
 106                 }
 107                 FlowCapableNodeConnector originalFcnc = (FlowCapableNodeConnector) change.getOriginalData().get(
 108                         fcncEntry.getKey());
 109                 Name portNameFromOriginalFcnc = getPortName(originalFcnc);
 110                 // port name already existed and then was changed
 111                 if (portNameFromOriginalFcnc != null && !Objects.equal(portNameFromOriginalFcnc, portName)) {
 112                     updated = updateEpWithNodeConnectorInfo(epWithOfOverlayAugByPortName
 113                             .get(portNameFromOriginalFcnc), null, rwTx);
 114                     l3Updated = updateL3EpWithNodeConnectorInfo(l3EpWithOfOverlayAugByPortName
 115                             .get(portNameFromOriginalFcnc), null, rwTx);
 116                     if (updated || l3Updated) {
 117                         isDataPutToTx = true;
 118                     }
 119                 }
 120             }
 121         }
 122         for (InstanceIdentifier<?> fcncIid : change.getRemovedPaths()) {
 123             if (FlowCapableNodeConnector.class.equals(fcncIid.getTargetType())) {
 124                 InstanceIdentifier<NodeConnector> ncIid = fcncIid.firstIdentifierOf(NodeConnector.class);
 125                 FlowCapableNodeConnector originalFcnc = (FlowCapableNodeConnector) change.getOriginalData()
 126                     .get(fcncIid);
 127                 LOG.trace("FlowCapableNodeConnector removed: NodeId: {} NodeConnectorId: {}",
 128                         ncIid.firstKeyOf(Node.class, NodeKey.class).getId().getValue(),
 129                         ncIid.firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue());
 130                 switchManager.updateSwitchNodeConnectorConfig(ncIid, null);
 131                 Name portNameFromOriginalFcnc = getPortName(originalFcnc);
 132                 boolean updated = updateEpWithNodeConnectorInfo(epWithOfOverlayAugByPortName.get(portNameFromOriginalFcnc), null, rwTx);
 133                 boolean l3Updated = updateL3EpWithNodeConnectorInfo(l3EpWithOfOverlayAugByPortName.get(portNameFromOriginalFcnc), null, rwTx);
 134                 if (updated || l3Updated) {
 135                     isDataPutToTx = true;
 136                 }
 137             }
 138         }
 139         if (isDataPutToTx) {
 140             rwTx.submit();
 141         } else {
 142             rwTx.cancel();
 143         }
 144     }
 145
 146     //read endpoints from listener entry
 147     private Map<Name, Endpoint> readEpsWithOfOverlayAugByPortName(ReadTransaction rTx) {
 148         Optional<Endpoints> potentialEps = Futures.getUnchecked(rTx.read(LogicalDatastoreType.OPERATIONAL, endpointsIid));
 149         if (!potentialEps.isPresent() || potentialEps.get().getEndpoint() == null) {
 150             return Collections.emptyMap();
 151         }
 152         Map<Name, Endpoint> epsByPortName = new HashMap<>();
 153         for (Endpoint ep : potentialEps.get().getEndpoint()) {
 154             OfOverlayContext ofOverlayEp = ep.getAugmentation(OfOverlayContext.class);
 155             if (ofOverlayEp != null && ofOverlayEp.getPortName() != null) {
 156                 epsByPortName.put(ofOverlayEp.getPortName(), ep);
 157             }
 158         }
 159         return epsByPortName;
 160     }
 161
 162     //read l3 endpoint from listener entry
 163     private Map<Name, EndpointL3> readL3EpsWithOfOverlayAugByPortName(ReadTransaction rTx) {
 164         Optional<Endpoints> potentialEps = Futures.getUnchecked(rTx.read(LogicalDatastoreType.OPERATIONAL, endpointsIid));
 165         if (!potentialEps.isPresent() || potentialEps.get().getEndpoint() == null) {
 166             return Collections.emptyMap();
 167         }
 168         Map<Name, EndpointL3> epsByPortName = new HashMap<>();
 169         for (EndpointL3 epL3 : potentialEps.get().getEndpointL3()) {
 170             OfOverlayL3Context ofOverlayL3Ep = epL3.getAugmentation(OfOverlayL3Context.class);
 171             if (ofOverlayL3Ep != null && ofOverlayL3Ep.getPortName() != null) {
 172                 epsByPortName.put(ofOverlayL3Ep.getPortName(), epL3);
 173             }
 174         }
 175         return epsByPortName;
 176     }
 177
 178     private Name getPortName(FlowCapableNodeConnector fcnc) {
 179         if (fcnc == null || fcnc.getName() == null) {
 180             return null;
 181         }
 182         return new Name(fcnc.getName());
 183     }
 184
 185     /**
 186      * @return {@code true} if data (Endpoint) was put to the transaction; {@code false} otherwise
 187      */
 188     private boolean updateEpWithNodeConnectorInfo(Endpoint epWithOfOverlayAug, InstanceIdentifier<NodeConnector> ncIid,
 189             WriteTransaction tx) {
 190         if (epWithOfOverlayAug == null) {
 191             return false;
 192         }
 193         OfOverlayContext oldOfOverlayAug = epWithOfOverlayAug.getAugmentation(OfOverlayContext.class);
 194         OfOverlayContextBuilder newOfOverlayAug = new OfOverlayContextBuilder(oldOfOverlayAug);
 195         if (ncIid == null && oldOfOverlayAug.getNodeConnectorId() == null) {
 196             return false;
 197         }
 198         if (ncIid != null) {
 199             NodeConnectorId ncId = ncIid.firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId();
 200             if (ncId.equals(oldOfOverlayAug.getNodeConnectorId())) {
 201                 return false;
 202             }
 203             NodeId nodeId = ncIid.firstKeyOf(Node.class, NodeKey.class).getId();
 204             newOfOverlayAug.setNodeId(nodeId);
 205             newOfOverlayAug.setNodeConnectorId(ncId);
 206         } else {
 207             //when nodeId is null, remove info about that node from endpoint
 208             newOfOverlayAug.setNodeId(null);
 209             newOfOverlayAug.setNodeConnectorId(null);
 210         }
 211         InstanceIdentifier<OfOverlayContext> epOfOverlayAugIid = InstanceIdentifier.builder(Endpoints.class)
 212             .child(Endpoint.class, epWithOfOverlayAug.getKey())
 213             .augmentation(OfOverlayContext.class)
 214             .build();
 215         tx.put(LogicalDatastoreType.OPERATIONAL, epOfOverlayAugIid, newOfOverlayAug.build());
 216         return true;
 217     }
 218
 219     /**
 220      * @return {@code true} if data (EndpointL3) was put to the transaction; {@code false} otherwise
 221      */
 222     private boolean updateL3EpWithNodeConnectorInfo(EndpointL3 epWithOfOverlayL3Aug,
 223             InstanceIdentifier<NodeConnector> ncIid, WriteTransaction tx) {
 224         if (epWithOfOverlayL3Aug == null) {
 225             return false;
 226         }
 227         OfOverlayL3Context oldOfOverlayL3Aug = epWithOfOverlayL3Aug.getAugmentation(OfOverlayL3Context.class);
 228         OfOverlayL3ContextBuilder newOfOverlayL3Aug = new OfOverlayL3ContextBuilder(oldOfOverlayL3Aug);
 229         if (ncIid == null && oldOfOverlayL3Aug.getNodeConnectorId() == null) {
 230             return false;
 231         }
 232         if (ncIid != null) {
 233             NodeConnectorId ncId = ncIid.firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId();
 234             if (ncId.equals(oldOfOverlayL3Aug.getNodeConnectorId())) {
 235                 return false;
 236             }
 237             NodeId nodeId = ncIid.firstKeyOf(Node.class, NodeKey.class).getId();
 238             newOfOverlayL3Aug.setNodeId(nodeId);
 239             newOfOverlayL3Aug.setNodeConnectorId(ncId);
 240         } else {
 241             // remove node info
 242             newOfOverlayL3Aug.setNodeId(null);
 243             newOfOverlayL3Aug.setNodeConnectorId(null);
 244         }
 245         InstanceIdentifier<OfOverlayL3Context> epOfOverlayAugIid = InstanceIdentifier.builder(Endpoints.class)
 246                 .child(EndpointL3.class, epWithOfOverlayL3Aug.getKey())
 247                 .augmentation(OfOverlayL3Context.class)
 248                 .build();
 249         tx.put(LogicalDatastoreType.OPERATIONAL, epOfOverlayAugIid, newOfOverlayL3Aug.build());
 250         return true;
 251     }
 252
 253     @Override
 254     public void close() throws Exception {
 255         if (listenerRegistration != null) {
 256             listenerRegistration.close();
 257         }
 258     }
 259
 260 }