interfacemgr/interfacemgr-impl/src/main/java/org/opendaylight/vpnservice/interfacemgr/servicebindings/flowbased/confighelpers/FlowBasedServicesConfigBindHelper.java

   1 /*
   2  * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. 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 package org.opendaylight.vpnservice.interfacemgr.servicebindings.flowbased.confighelpers;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  13 import org.opendaylight.vpnservice.interfacemgr.IfmConstants;
  14 import org.opendaylight.vpnservice.interfacemgr.IfmUtil;
  15 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceManagerCommonUtils;
  16 import org.opendaylight.vpnservice.interfacemgr.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  17 import org.opendaylight.vpnservice.mdsalutil.MatchInfo;
  18 import org.opendaylight.vpnservice.mdsalutil.NwConstants;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.servicebinding.rev151015.service.bindings.ServicesInfo;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.servicebinding.rev151015.service.bindings.services.info.BoundServices;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfL2vlan;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import java.math.BigInteger;
  33 import java.util.ArrayList;
  34 import java.util.List;
  35 import java.util.Map;
  36 import java.util.concurrent.ConcurrentHashMap;
  37
  38 public class FlowBasedServicesConfigBindHelper {
  39     private static final Logger LOG = LoggerFactory.getLogger(FlowBasedServicesConfigBindHelper.class);
  40
  41     public static List<ListenableFuture<Void>> bindService(InstanceIdentifier<BoundServices> instanceIdentifier,
  42                                                            BoundServices boundServiceNew, DataBroker dataBroker) {
  43         List<ListenableFuture<Void>> futures = new ArrayList<>();
  44         WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
  45         String interfaceName =
  46                 InstanceIdentifier.keyOf(instanceIdentifier.firstIdentifierOf(ServicesInfo.class)).getInterfaceName();
  47
  48         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
  49                 InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
  50         if (ifState == null || ifState.getOperStatus() == OperStatus.Down) {
  51             LOG.warn("Interface not up, not Binding Service for Interface: {}", interfaceName);
  52             return futures;
  53         }
  54
  55         // Get the Parent ServiceInfo
  56
  57         ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(interfaceName, dataBroker);
  58         if (servicesInfo == null) {
  59             LOG.error("Reached Impossible part 1 in the code during bind service for: {}", boundServiceNew);
  60             return futures;
  61         }
  62
  63         InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
  64         Interface iface = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
  65
  66         List<BoundServices> allServices = servicesInfo.getBoundServices();
  67         if (allServices.isEmpty()) {
  68             LOG.error("Reached Impossible part 2 in the code during bind service for: {}", boundServiceNew);
  69             return futures;
  70         }
  71
  72         NodeConnectorId nodeConnectorId = FlowBasedServicesUtils.getNodeConnectorIdFromInterface(iface, dataBroker);
  73         long portNo = Long.parseLong(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
  74         BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
  75
  76         if (allServices.size() == 1) {
  77             // If only one service present, install instructions in table 0.
  78             int vlanId = 0;
  79             List<MatchInfo> matches = null;
  80             if (iface.getType().isAssignableFrom(L2vlan.class)) {
  81                 matches = FlowBasedServicesUtils.getMatchInfoForVlanPortAtIngressTable(dpId, portNo, iface);
  82             } else if (iface.getType().isAssignableFrom(Tunnel.class)){
  83                 matches = FlowBasedServicesUtils.getMatchInfoForTunnelPortAtIngressTable (dpId, portNo, iface);
  84             }
  85
  86             if (matches != null) {
  87                 FlowBasedServicesUtils.installInterfaceIngressFlow(dpId, iface, boundServiceNew,
  88                         transaction, matches, ifState.getIfIndex(), NwConstants.VLAN_INTERFACE_INGRESS_TABLE);
  89             }
  90
  91             if (transaction != null) {
  92                 futures.add(transaction.submit());
  93             }
  94             return futures;
  95         }
  96
  97         boolean isCurrentServiceHighestPriority = true;
  98         Map<Short, BoundServices> tmpServicesMap = new ConcurrentHashMap<>();
  99         short highestPriority = 0xFF;
 100         for (BoundServices boundService : allServices) {
 101             if (boundService.getServicePriority() < boundServiceNew.getServicePriority()) {
 102                 isCurrentServiceHighestPriority = false;
 103                 break;
 104             }
 105             if (!boundService.equals(boundServiceNew)) {
 106                 tmpServicesMap.put(boundService.getServicePriority(), boundService);
 107                 if (boundService.getServicePriority() < highestPriority) {
 108                     highestPriority = boundService.getServicePriority();
 109                 }
 110             }
 111         }
 112
 113         if (!isCurrentServiceHighestPriority) {
 114             FlowBasedServicesUtils.installLPortDispatcherFlow(dpId, boundServiceNew, iface, transaction,
 115                     ifState.getIfIndex());
 116         } else {
 117             BoundServices serviceToReplace = tmpServicesMap.get(highestPriority);
 118             FlowBasedServicesUtils.installLPortDispatcherFlow(dpId, serviceToReplace, iface, transaction,
 119                     ifState.getIfIndex());
 120             List<MatchInfo> matches = null;
 121             if (iface.getType().isAssignableFrom(L2vlan.class)) {
 122                 matches = FlowBasedServicesUtils.getMatchInfoForVlanPortAtIngressTable(dpId, portNo, iface);
 123             } else if (iface.getType().isAssignableFrom(Tunnel.class)){
 124                 matches = FlowBasedServicesUtils.getMatchInfoForTunnelPortAtIngressTable (dpId, portNo, iface);
 125             }
 126
 127             if (matches != null) {
 128
 129                 WriteTransaction removeFlowTransaction = dataBroker.newWriteOnlyTransaction();
 130                 FlowBasedServicesUtils.removeIngressFlow(iface, serviceToReplace, dpId, removeFlowTransaction);
 131                 futures.add(removeFlowTransaction.submit());
 132
 133                 WriteTransaction installFlowTransaction = dataBroker.newWriteOnlyTransaction();
 134                 FlowBasedServicesUtils.installInterfaceIngressFlow(dpId, iface, boundServiceNew, installFlowTransaction,
 135                         matches, ifState.getIfIndex(), NwConstants.VLAN_INTERFACE_INGRESS_TABLE);
 136                 futures.add(installFlowTransaction.submit());
 137             }
 138         }
 139
 140         if (transaction != null) {
 141             futures.add(transaction.submit());
 142         }
 143         return futures;
 144     }
 145 }