opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/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.controller.frm.impl;
  10
  11 import java.util.Collections;
  12 import java.util.Set;
  13 import java.util.concurrent.atomic.AtomicLong;
  14
  15 import org.opendaylight.controller.frm.FlowNodeReconciliation;
  16 import org.opendaylight.controller.frm.ForwardingRulesCommiter;
  17 import org.opendaylight.controller.frm.ForwardingRulesManager;
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  20 import org.opendaylight.controller.sal.binding.api.RpcConsumerRegistry;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.SalGroupService;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.SalMeterService;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import com.google.common.base.Preconditions;
  33 import com.google.common.collect.Sets;
  34
  35 /**
  36  * forwardingrules-manager
  37  * org.opendaylight.controller.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
  50     private final AtomicLong txNum = new AtomicLong();
  51     private final Object lockObj = new Object();
  52     private Set<InstanceIdentifier<FlowCapableNode>> activeNodes = Collections.emptySet();
  53
  54     private final DataBroker dataService;
  55     private final SalFlowService salFlowService;
  56     private final SalGroupService salGroupService;
  57     private final SalMeterService salMeterService;
  58
  59     private ForwardingRulesCommiter<Flow> flowListener;
  60     private ForwardingRulesCommiter<Group> groupListener;
  61     private ForwardingRulesCommiter<Meter> meterListener;
  62     private FlowNodeReconciliation nodeListener;
  63
  64     public ForwardingRulesManagerImpl(final DataBroker dataBroker,
  65             final RpcConsumerRegistry rpcRegistry) {
  66         this.dataService = Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  67
  68         Preconditions.checkArgument(rpcRegistry != null, "RpcConsumerRegistry can not be null !");
  69
  70         this.salFlowService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalFlowService.class),
  71                 "RPC SalFlowService not found.");
  72         this.salGroupService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalGroupService.class),
  73                 "RPC SalGroupService not found.");
  74         this.salMeterService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalMeterService.class),
  75                 "RPC SalMeterService not found.");
  76     }
  77
  78     @Override
  79     public void start() {
  80         this.flowListener = new FlowForwarder(this, dataService);
  81         this.groupListener = new GroupForwarder(this, dataService);
  82         this.meterListener = new MeterForwarder(this, dataService);
  83         this.nodeListener = new FlowNodeReconciliationImpl(this, dataService);
  84         LOG.info("ForwardingRulesManager has started successfull.");
  85     }
  86
  87     @Override
  88     public void close() throws Exception {
  89         if(this.flowListener != null) {
  90             this.flowListener.close();
  91             this.flowListener = null;
  92         }
  93         if (this.groupListener != null) {
  94             this.groupListener.close();
  95             this.groupListener = null;
  96         }
  97         if (this.meterListener != null) {
  98             this.meterListener.close();
  99             this.meterListener = null;
 100         }
 101         if (this.nodeListener != null) {
 102             this.nodeListener.close();
 103             this.nodeListener = null;
 104         }
 105     }
 106
 107     @Override
 108     public ReadOnlyTransaction getReadTranaction() {
 109         return dataService.newReadOnlyTransaction();
 110     }
 111
 112     @Override
 113     public String getNewTransactionId() {
 114         return "DOM-" + txNum.getAndIncrement();
 115     }
 116
 117     @Override
 118     public boolean isNodeActive(InstanceIdentifier<FlowCapableNode> ident) {
 119         return activeNodes.contains(ident);
 120     }
 121
 122     @Override
 123     public void registrateNewNode(InstanceIdentifier<FlowCapableNode> ident) {
 124         if ( ! activeNodes.contains(ident)) {
 125             synchronized (lockObj) {
 126                 if ( ! activeNodes.contains(ident)) {
 127                     Set<InstanceIdentifier<FlowCapableNode>> set =
 128                             Sets.newHashSet(activeNodes);
 129                     set.add(ident);
 130                     activeNodes = Collections.unmodifiableSet(set);
 131                 }
 132             }
 133         }
 134     }
 135
 136     @Override
 137     public void unregistrateNode(InstanceIdentifier<FlowCapableNode> ident) {
 138         if (activeNodes.contains(ident)) {
 139             synchronized (lockObj) {
 140                 if (activeNodes.contains(ident)) {
 141                     Set<InstanceIdentifier<FlowCapableNode>> set =
 142                             Sets.newHashSet(activeNodes);
 143                     set.remove(ident);
 144                     activeNodes = Collections.unmodifiableSet(set);
 145                 }
 146             }
 147         }
 148     }
 149
 150     @Override
 151     public SalFlowService getSalFlowService() {
 152         return salFlowService;
 153     }
 154
 155     @Override
 156     public SalGroupService getSalGroupService() {
 157         return salGroupService;
 158     }
 159
 160     @Override
 161     public SalMeterService getSalMeterService() {
 162         return salMeterService;
 163     }
 164
 165     @Override
 166     public ForwardingRulesCommiter<Flow> getFlowCommiter() {
 167         return flowListener;
 168     }
 169
 170     @Override
 171     public ForwardingRulesCommiter<Group> getGroupCommiter() {
 172         return groupListener;
 173     }
 174
 175     @Override
 176     public ForwardingRulesCommiter<Meter> getMeterCommiter() {
 177         return meterListener;
 178     }
 179
 180     @Override
 181     public FlowNodeReconciliation getFlowNodeReconciliation() {
 182         return nodeListener;
 183     }
 184 }
 185