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