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.Preconditions;
  12 import com.google.common.collect.Sets;
  13 import java.util.Collections;
  14 import java.util.Set;
  15 import java.util.concurrent.atomic.AtomicLong;
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  18 import org.opendaylight.controller.sal.binding.api.RpcConsumerRegistry;
  19 import org.opendaylight.openflowplugin.applications.frm.FlowNodeReconciliation;
  20 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesCommiter;
  21 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.SalGroupService;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.SalMeterService;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table.features.TableFeatures;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.SalTableService;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 /**
  36  * forwardingrules-manager
  37  * org.opendaylight.openflowplugin.applications.frm.impl
  38  *
  39  * Manager and middle point for whole module.
  40  * It contains ActiveNodeHolder and provide all RPC services.
  41  *
  42  * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
  43  *
  44  * Created: Aug 25, 2014
  45  */
  46 public class ForwardingRulesManagerImpl implements ForwardingRulesManager {
  47
  48     private static final Logger LOG = LoggerFactory.getLogger(ForwardingRulesManagerImpl.class);
  49     public static final int STARTUP_LOOP_TICK = 500;
  50     public static final int STARTUP_LOOP_MAX_RETRIES = 8;
  51
  52     private final AtomicLong txNum = new AtomicLong();
  53     private final Object lockObj = new Object();
  54     private Set<InstanceIdentifier<FlowCapableNode>> activeNodes = Collections.emptySet();
  55
  56     private final DataBroker dataService;
  57     private final SalFlowService salFlowService;
  58     private final SalGroupService salGroupService;
  59     private final SalMeterService salMeterService;
  60     private final SalTableService salTableService;
  61
  62     private ForwardingRulesCommiter<Flow> flowListener;
  63     private ForwardingRulesCommiter<Group> groupListener;
  64     private ForwardingRulesCommiter<Meter> meterListener;
  65     private ForwardingRulesCommiter<TableFeatures> tableListener;
  66     private FlowNodeReconciliation nodeListener;
  67
  68     private final ForwardingRulesManagerConfig forwardingRulesManagerConfig;
  69
  70     public ForwardingRulesManagerImpl(final DataBroker dataBroker,
  71                                       final RpcConsumerRegistry rpcRegistry,
  72                                       final ForwardingRulesManagerConfig config) {
  73         this.dataService = Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  74         this.forwardingRulesManagerConfig = Preconditions.checkNotNull(config, "Configuration for FRM cannot be null");
  75
  76         Preconditions.checkArgument(rpcRegistry != null, "RpcConsumerRegistry can not be null !");
  77
  78         this.salFlowService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalFlowService.class),
  79                 "RPC SalFlowService not found.");
  80         this.salGroupService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalGroupService.class),
  81                 "RPC SalGroupService not found.");
  82         this.salMeterService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalMeterService.class),
  83                 "RPC SalMeterService not found.");
  84         this.salTableService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalTableService.class),
  85                 "RPC SalTableService not found.");
  86     }
  87
  88     @Override
  89     public void start() {
  90
  91         this.flowListener = new FlowForwarder(this, dataService);
  92
  93         this.groupListener = new GroupForwarder(this, dataService);
  94         this.meterListener = new MeterForwarder(this, dataService);
  95
  96         this.tableListener = new TableForwarder(this, dataService);
  97         this.nodeListener = new FlowNodeReconciliationImpl(this, dataService);
  98         LOG.info("ForwardingRulesManager has started successfully.");
  99
 100     }
 101
 102     @Override
 103     public void close() throws Exception {
 104         if (this.flowListener != null) {
 105             this.flowListener.close();
 106             this.flowListener = null;
 107         }
 108         if (this.groupListener != null) {
 109             this.groupListener.close();
 110             this.groupListener = null;
 111         }
 112         if (this.meterListener != null) {
 113             this.meterListener.close();
 114             this.meterListener = null;
 115         }
 116         if (this.tableListener != null) {
 117             this.tableListener.close();
 118             this.tableListener = null;
 119         }
 120         if (this.nodeListener != null) {
 121             this.nodeListener.close();
 122             this.nodeListener = null;
 123         }
 124     }
 125
 126     @Override
 127     public ReadOnlyTransaction getReadTranaction() {
 128         return dataService.newReadOnlyTransaction();
 129     }
 130
 131     @Override
 132     public String getNewTransactionId() {
 133         return "DOM-" + txNum.getAndIncrement();
 134     }
 135
 136     @Override
 137     public boolean isNodeActive(InstanceIdentifier<FlowCapableNode> ident) {
 138         return activeNodes.contains(ident);
 139     }
 140
 141     @Override
 142     public void registrateNewNode(InstanceIdentifier<FlowCapableNode> ident) {
 143         if (!activeNodes.contains(ident)) {
 144             synchronized (lockObj) {
 145                 if (!activeNodes.contains(ident)) {
 146                     Set<InstanceIdentifier<FlowCapableNode>> set =
 147                             Sets.newHashSet(activeNodes);
 148                     set.add(ident);
 149                     activeNodes = Collections.unmodifiableSet(set);
 150                 }
 151             }
 152         }
 153     }
 154
 155     @Override
 156     public void unregistrateNode(InstanceIdentifier<FlowCapableNode> ident) {
 157         if (activeNodes.contains(ident)) {
 158             synchronized (lockObj) {
 159                 if (activeNodes.contains(ident)) {
 160                     Set<InstanceIdentifier<FlowCapableNode>> set =
 161                             Sets.newHashSet(activeNodes);
 162                     set.remove(ident);
 163                     activeNodes = Collections.unmodifiableSet(set);
 164                 }
 165             }
 166         }
 167     }
 168
 169     @Override
 170     public SalFlowService getSalFlowService() {
 171         return salFlowService;
 172     }
 173
 174     @Override
 175     public SalGroupService getSalGroupService() {
 176         return salGroupService;
 177     }
 178
 179     @Override
 180     public SalMeterService getSalMeterService() {
 181         return salMeterService;
 182     }
 183
 184     @Override
 185     public SalTableService getSalTableService() {
 186         return salTableService;
 187     }
 188
 189     @Override
 190     public ForwardingRulesCommiter<Flow> getFlowCommiter() {
 191         return flowListener;
 192     }
 193
 194     @Override
 195     public ForwardingRulesCommiter<Group> getGroupCommiter() {
 196         return groupListener;
 197     }
 198
 199     @Override
 200     public ForwardingRulesCommiter<Meter> getMeterCommiter() {
 201         return meterListener;
 202     }
 203
 204     @Override
 205     public ForwardingRulesCommiter<TableFeatures> getTableFeaturesCommiter() {
 206         return tableListener;
 207     }
 208
 209     @Override
 210     public FlowNodeReconciliation getFlowNodeReconciliation() {
 211         return nodeListener;
 212     }
 213
 214     @Override
 215     public ForwardingRulesManagerConfig getConfiguration() {
 216         return forwardingRulesManagerConfig;
 217     }
 218 }
 219