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  *
   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.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 /**
  34  * forwardingrules-manager
  35  * org.opendaylight.openflowplugin.applications.frm.impl
  36  *
  37  * Manager and middle point for whole module.
  38  * It contains ActiveNodeHolder and provide all RPC services.
  39  *
  40  * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
  41  *
  42  * Created: Aug 25, 2014
  43  */
  44 public class ForwardingRulesManagerImpl implements ForwardingRulesManager {
  45
  46     private static final Logger LOG = LoggerFactory.getLogger(ForwardingRulesManagerImpl.class);
  47
  48     private final AtomicLong txNum = new AtomicLong();
  49     private final Object lockObj = new Object();
  50     private Set<InstanceIdentifier<FlowCapableNode>> activeNodes = Collections.emptySet();
  51
  52     private final DataBroker dataService;
  53     private final SalFlowService salFlowService;
  54     private final SalGroupService salGroupService;
  55     private final SalMeterService salMeterService;
  56
  57     private ForwardingRulesCommiter<Flow> flowListener;
  58     private ForwardingRulesCommiter<Group> groupListener;
  59     private ForwardingRulesCommiter<Meter> meterListener;
  60     private FlowNodeReconciliation nodeListener;
  61
  62     public ForwardingRulesManagerImpl(final DataBroker dataBroker,
  63             final RpcConsumerRegistry rpcRegistry) {
  64         this.dataService = Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  65
  66         Preconditions.checkArgument(rpcRegistry != null, "RpcConsumerRegistry can not be null !");
  67
  68         this.salFlowService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalFlowService.class),
  69                 "RPC SalFlowService not found.");
  70         this.salGroupService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalGroupService.class),
  71                 "RPC SalGroupService not found.");
  72         this.salMeterService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalMeterService.class),
  73                 "RPC SalMeterService not found.");
  74     }
  75
  76     @Override
  77     public void start() {
  78         this.flowListener = new FlowForwarder(this, dataService);
  79         this.groupListener = new GroupForwarder(this, dataService);
  80         this.meterListener = new MeterForwarder(this, dataService);
  81         this.nodeListener = new FlowNodeReconciliationImpl(this, dataService);
  82         LOG.info("ForwardingRulesManager has started successfully.");
  83     }
  84
  85     @Override
  86     public void close() throws Exception {
  87         if(this.flowListener != null) {
  88             this.flowListener.close();
  89             this.flowListener = null;
  90         }
  91         if (this.groupListener != null) {
  92             this.groupListener.close();
  93             this.groupListener = null;
  94         }
  95         if (this.meterListener != null) {
  96             this.meterListener.close();
  97             this.meterListener = null;
  98         }
  99         if (this.nodeListener != null) {
 100             this.nodeListener.close();
 101             this.nodeListener = null;
 102         }
 103     }
 104
 105     @Override
 106     public ReadOnlyTransaction getReadTranaction() {
 107         return dataService.newReadOnlyTransaction();
 108     }
 109
 110     @Override
 111     public String getNewTransactionId() {
 112         return "DOM-" + txNum.getAndIncrement();
 113     }
 114
 115     @Override
 116     public boolean isNodeActive(InstanceIdentifier<FlowCapableNode> ident) {
 117         return activeNodes.contains(ident);
 118     }
 119
 120     @Override
 121     public void registrateNewNode(InstanceIdentifier<FlowCapableNode> ident) {
 122         if ( ! activeNodes.contains(ident)) {
 123             synchronized (lockObj) {
 124                 if ( ! activeNodes.contains(ident)) {
 125                     Set<InstanceIdentifier<FlowCapableNode>> set =
 126                             Sets.newHashSet(activeNodes);
 127                     set.add(ident);
 128                     activeNodes = Collections.unmodifiableSet(set);
 129                 }
 130             }
 131         }
 132     }
 133
 134     @Override
 135     public void unregistrateNode(InstanceIdentifier<FlowCapableNode> ident) {
 136         if (activeNodes.contains(ident)) {
 137             synchronized (lockObj) {
 138                 if (activeNodes.contains(ident)) {
 139                     Set<InstanceIdentifier<FlowCapableNode>> set =
 140                             Sets.newHashSet(activeNodes);
 141                     set.remove(ident);
 142                     activeNodes = Collections.unmodifiableSet(set);
 143                 }
 144             }
 145         }
 146     }
 147
 148     @Override
 149     public SalFlowService getSalFlowService() {
 150         return salFlowService;
 151     }
 152
 153     @Override
 154     public SalGroupService getSalGroupService() {
 155         return salGroupService;
 156     }
 157
 158     @Override
 159     public SalMeterService getSalMeterService() {
 160         return salMeterService;
 161     }
 162
 163     @Override
 164     public ForwardingRulesCommiter<Flow> getFlowCommiter() {
 165         return flowListener;
 166     }
 167
 168     @Override
 169     public ForwardingRulesCommiter<Group> getGroupCommiter() {
 170         return groupListener;
 171     }
 172
 173     @Override
 174     public ForwardingRulesCommiter<Meter> getMeterCommiter() {
 175         return meterListener;
 176     }
 177
 178     @Override
 179     public FlowNodeReconciliation getFlowNodeReconciliation() {
 180         return nodeListener;
 181     }
 182 }
 183