applications/forwardingrules-manager/src/main/java/org/opendaylight/openflowplugin/applications/frm/impl/ForwardingRulesManagerImpl.java

   1 /**
   2  * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.openflowplugin.applications.frm.impl;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.collect.Sets;
  14 import java.util.Collections;
  15 import java.util.Set;
  16 import java.util.concurrent.atomic.AtomicLong;
  17
  18 import com.google.common.util.concurrent.CheckedFuture;
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  21 import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
  22 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService;
  23 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipState;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  26 import org.opendaylight.controller.sal.binding.api.RpcConsumerRegistry;
  27 import org.opendaylight.openflowplugin.applications.frm.FlowNodeReconciliation;
  28 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesCommiter;
  29 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.SalGroupService;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.SalMeterService;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table.features.TableFeatures;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.SalTableService;
  41 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 /**
  46  * forwardingrules-manager
  47  * org.opendaylight.openflowplugin.applications.frm.impl
  48  *
  49  * Manager and middle point for whole module.
  50  * It contains ActiveNodeHolder and provide all RPC services.
  51  *
  52  * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
  53  *
  54  * Created: Aug 25, 2014
  55  */
  56 public class ForwardingRulesManagerImpl implements ForwardingRulesManager {
  57
  58     private static final Logger LOG = LoggerFactory.getLogger(ForwardingRulesManagerImpl.class);
  59     public static final int STARTUP_LOOP_TICK = 500;
  60     public static final int STARTUP_LOOP_MAX_RETRIES = 8;
  61
  62     private final AtomicLong txNum = new AtomicLong();
  63     private final Object lockObj = new Object();
  64     private Set<InstanceIdentifier<FlowCapableNode>> activeNodes = Collections.emptySet();
  65
  66     private final DataBroker dataService;
  67     private final SalFlowService salFlowService;
  68     private final SalGroupService salGroupService;
  69     private final SalMeterService salMeterService;
  70     private final SalTableService salTableService;
  71
  72     private ForwardingRulesCommiter<Flow> flowListener;
  73     private ForwardingRulesCommiter<Group> groupListener;
  74     private ForwardingRulesCommiter<Meter> meterListener;
  75     private ForwardingRulesCommiter<TableFeatures> tableListener;
  76     private FlowNodeReconciliation nodeListener;
  77
  78     private final ForwardingRulesManagerConfig forwardingRulesManagerConfig;
  79     private final EntityOwnershipService entityOwnershipService;
  80
  81     public ForwardingRulesManagerImpl(final DataBroker dataBroker,
  82                                       final RpcConsumerRegistry rpcRegistry,
  83                                       final ForwardingRulesManagerConfig config,
  84                                       final EntityOwnershipService eos) {
  85         this.dataService = Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  86         this.forwardingRulesManagerConfig = Preconditions.checkNotNull(config, "Configuration for FRM cannot be null");
  87         this.entityOwnershipService = Preconditions.checkNotNull(eos, "EntityOwnership service can not be null");
  88
  89         Preconditions.checkArgument(rpcRegistry != null, "RpcConsumerRegistry can not be null !");
  90
  91         this.salFlowService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalFlowService.class),
  92                 "RPC SalFlowService not found.");
  93         this.salGroupService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalGroupService.class),
  94                 "RPC SalGroupService not found.");
  95         this.salMeterService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalMeterService.class),
  96                 "RPC SalMeterService not found.");
  97         this.salTableService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalTableService.class),
  98                 "RPC SalTableService not found.");
  99     }
 100
 101     @Override
 102     public void start() {
 103
 104         this.flowListener = new FlowForwarder(this, dataService);
 105
 106         this.groupListener = new GroupForwarder(this, dataService);
 107         this.meterListener = new MeterForwarder(this, dataService);
 108
 109         this.tableListener = new TableForwarder(this, dataService);
 110         this.nodeListener = new FlowNodeReconciliationImpl(this, dataService);
 111         LOG.info("ForwardingRulesManager has started successfully.");
 112
 113     }
 114
 115     @Override
 116     public void close() throws Exception {
 117         if (this.flowListener != null) {
 118             this.flowListener.close();
 119             this.flowListener = null;
 120         }
 121         if (this.groupListener != null) {
 122             this.groupListener.close();
 123             this.groupListener = null;
 124         }
 125         if (this.meterListener != null) {
 126             this.meterListener.close();
 127             this.meterListener = null;
 128         }
 129         if (this.tableListener != null) {
 130             this.tableListener.close();
 131             this.tableListener = null;
 132         }
 133         if (this.nodeListener != null) {
 134             this.nodeListener.close();
 135             this.nodeListener = null;
 136         }
 137     }
 138
 139     @Override
 140     public ReadOnlyTransaction getReadTranaction() {
 141         return dataService.newReadOnlyTransaction();
 142     }
 143
 144     @Override
 145     public String getNewTransactionId() {
 146         return "DOM-" + txNum.getAndIncrement();
 147     }
 148
 149     @Override
 150     public boolean isNodeActive(InstanceIdentifier<FlowCapableNode> ident) {
 151         return activeNodes.contains(ident);
 152     }
 153
 154     @Override
 155     public boolean checkNodeInOperationalDataStore(InstanceIdentifier<FlowCapableNode> ident) {
 156         boolean result = false;
 157         InstanceIdentifier<Node> nodeIid = ident.firstIdentifierOf(Node.class);
 158         final ReadOnlyTransaction transaction = dataService.newReadOnlyTransaction();
 159         Optional<Node> optionalDataObject;
 160         CheckedFuture<Optional<Node>, ReadFailedException> future = transaction.read(LogicalDatastoreType.OPERATIONAL, nodeIid);
 161         try {
 162             optionalDataObject = future.checkedGet();
 163             if (optionalDataObject.isPresent()) {
 164                 result = true;
 165             } else {
 166                 LOG.debug("{}: Failed to read {}",
 167                         Thread.currentThread().getStackTrace()[1], nodeIid);
 168             }
 169         } catch (ReadFailedException e) {
 170             LOG.warn("Failed to read {} ", nodeIid, e);
 171         }
 172         transaction.close();
 173
 174         return result;
 175     }
 176
 177     @Override
 178     public void registrateNewNode(InstanceIdentifier<FlowCapableNode> ident) {
 179         if (!activeNodes.contains(ident)) {
 180             synchronized (lockObj) {
 181                 if (!activeNodes.contains(ident)) {
 182                     Set<InstanceIdentifier<FlowCapableNode>> set =
 183                             Sets.newHashSet(activeNodes);
 184                     set.add(ident);
 185                     activeNodes = Collections.unmodifiableSet(set);
 186                 }
 187             }
 188         }
 189     }
 190
 191     @Override
 192     public void unregistrateNode(InstanceIdentifier<FlowCapableNode> ident) {
 193         if (activeNodes.contains(ident)) {
 194             synchronized (lockObj) {
 195                 if (activeNodes.contains(ident)) {
 196                     Set<InstanceIdentifier<FlowCapableNode>> set =
 197                             Sets.newHashSet(activeNodes);
 198                     set.remove(ident);
 199                     activeNodes = Collections.unmodifiableSet(set);
 200                 }
 201             }
 202         }
 203     }
 204
 205     @Override
 206     public SalFlowService getSalFlowService() {
 207         return salFlowService;
 208     }
 209
 210     @Override
 211     public SalGroupService getSalGroupService() {
 212         return salGroupService;
 213     }
 214
 215     @Override
 216     public SalMeterService getSalMeterService() {
 217         return salMeterService;
 218     }
 219
 220     @Override
 221     public SalTableService getSalTableService() {
 222         return salTableService;
 223     }
 224
 225     @Override
 226     public ForwardingRulesCommiter<Flow> getFlowCommiter() {
 227         return flowListener;
 228     }
 229
 230     @Override
 231     public ForwardingRulesCommiter<Group> getGroupCommiter() {
 232         return groupListener;
 233     }
 234
 235     @Override
 236     public ForwardingRulesCommiter<Meter> getMeterCommiter() {
 237         return meterListener;
 238     }
 239
 240     @Override
 241     public ForwardingRulesCommiter<TableFeatures> getTableFeaturesCommiter() {
 242         return tableListener;
 243     }
 244
 245     @Override
 246     public FlowNodeReconciliation getFlowNodeReconciliation() {
 247         return nodeListener;
 248     }
 249
 250     @Override
 251     public ForwardingRulesManagerConfig getConfiguration() {
 252         return forwardingRulesManagerConfig;
 253     }
 254
 255     @Override
 256     public boolean isNodeOwner(InstanceIdentifier<FlowCapableNode> ident) {
 257         NodeId nodeId = ident.firstKeyOf(Node.class).getId();
 258         Entity entity = new Entity("openflow", nodeId.getValue());
 259         Optional<EntityOwnershipState> eState = this.entityOwnershipService.getOwnershipState(entity);
 260         if(eState.isPresent()) {
 261             return eState.get().isOwner();
 262         }
 263         return false;
 264     }
 265 }
 266