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

   1 /**
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  * <p/>
   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.flow.inventory.rev130819.tables.Table;
  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<Table> tableListener;
  66     private FlowNodeReconciliation nodeListener;
  67
  68     public ForwardingRulesManagerImpl(final DataBroker dataBroker,
  69                                       final RpcConsumerRegistry rpcRegistry) {
  70         this.dataService = Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  71
  72         Preconditions.checkArgument(rpcRegistry != null, "RpcConsumerRegistry can not be null !");
  73
  74         this.salFlowService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalFlowService.class),
  75                 "RPC SalFlowService not found.");
  76         this.salGroupService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalGroupService.class),
  77                 "RPC SalGroupService not found.");
  78         this.salMeterService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalMeterService.class),
  79                 "RPC SalMeterService not found.");
  80         this.salTableService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalTableService.class),
  81                 "RPC SalTableService not found.");
  82     }
  83
  84     @Override
  85     public void start() {
  86
  87         this.flowListener = new FlowForwarder(this, dataService);
  88
  89         this.groupListener = new GroupForwarder(this, dataService);
  90         this.meterListener = new MeterForwarder(this, dataService);
  91
  92         this.tableListener = new TableForwarder(this, dataService);
  93         this.nodeListener = new FlowNodeReconciliationImpl(this, dataService);
  94         LOG.info("ForwardingRulesManager has started successfully.");
  95
  96     }
  97
  98     @Override
  99     public void close() throws Exception {
 100         if (this.flowListener != null) {
 101             this.flowListener.close();
 102             this.flowListener = null;
 103         }
 104         if (this.groupListener != null) {
 105             this.groupListener.close();
 106             this.groupListener = null;
 107         }
 108         if (this.meterListener != null) {
 109             this.meterListener.close();
 110             this.meterListener = null;
 111         }
 112         if (this.tableListener != null) {
 113             this.tableListener.close();
 114             this.tableListener = null;
 115         }
 116         if (this.nodeListener != null) {
 117             this.nodeListener.close();
 118             this.nodeListener = null;
 119         }
 120     }
 121
 122     @Override
 123     public ReadOnlyTransaction getReadTranaction() {
 124         return dataService.newReadOnlyTransaction();
 125     }
 126
 127     @Override
 128     public String getNewTransactionId() {
 129         return "DOM-" + txNum.getAndIncrement();
 130     }
 131
 132     @Override
 133     public boolean isNodeActive(InstanceIdentifier<FlowCapableNode> ident) {
 134         return activeNodes.contains(ident);
 135     }
 136
 137     @Override
 138     public void registrateNewNode(InstanceIdentifier<FlowCapableNode> ident) {
 139         if (!activeNodes.contains(ident)) {
 140             synchronized (lockObj) {
 141                 if (!activeNodes.contains(ident)) {
 142                     Set<InstanceIdentifier<FlowCapableNode>> set =
 143                             Sets.newHashSet(activeNodes);
 144                     set.add(ident);
 145                     activeNodes = Collections.unmodifiableSet(set);
 146                 }
 147             }
 148         }
 149     }
 150
 151     @Override
 152     public void unregistrateNode(InstanceIdentifier<FlowCapableNode> ident) {
 153         if (activeNodes.contains(ident)) {
 154             synchronized (lockObj) {
 155                 if (activeNodes.contains(ident)) {
 156                     Set<InstanceIdentifier<FlowCapableNode>> set =
 157                             Sets.newHashSet(activeNodes);
 158                     set.remove(ident);
 159                     activeNodes = Collections.unmodifiableSet(set);
 160                 }
 161             }
 162         }
 163     }
 164
 165     @Override
 166     public SalFlowService getSalFlowService() {
 167         return salFlowService;
 168     }
 169
 170     @Override
 171     public SalGroupService getSalGroupService() {
 172         return salGroupService;
 173     }
 174
 175     @Override
 176     public SalMeterService getSalMeterService() {
 177         return salMeterService;
 178     }
 179
 180     @Override
 181     public SalTableService getSalTableService() {
 182         return salTableService;
 183     }
 184
 185     @Override
 186     public ForwardingRulesCommiter<Flow> getFlowCommiter() {
 187         return flowListener;
 188     }
 189
 190     @Override
 191     public ForwardingRulesCommiter<Group> getGroupCommiter() {
 192         return groupListener;
 193     }
 194
 195     @Override
 196     public ForwardingRulesCommiter<Meter> getMeterCommiter() {
 197         return meterListener;
 198     }
 199
 200     @Override
 201     public ForwardingRulesCommiter<Table> getTableCommiter() {
 202         return tableListener;
 203     }
 204
 205     @Override
 206     public FlowNodeReconciliation getFlowNodeReconciliation() {
 207         return nodeListener;
 208     }
 209 }
 210