interfacemanager/interfacemanager-impl/src/main/java/org/opendaylight/genius/interfacemanager/servicebindings/flowbased/config/helpers/FlowBasedEgressServicesConfigBindHelper.java

   1 /*
   2  * Copyright (c) 2016 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.genius.interfacemanager.servicebindings.flowbased.config.helpers;
   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.genius.interfacemanager.InterfacemgrProvider;
  14 import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
  15 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.config.factory.FlowBasedServicesConfigAddable;
  16 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  17 import org.opendaylight.genius.mdsalutil.NwConstants;
  18 import org.opendaylight.genius.utils.ServiceIndex;
  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.state.Interface.OperStatus;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.ServiceModeBase;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.ServicesInfo;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.services.info.BoundServices;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 import java.math.BigInteger;
  30 import java.util.ArrayList;
  31 import java.util.List;
  32
  33 public class FlowBasedEgressServicesConfigBindHelper implements FlowBasedServicesConfigAddable {
  34     private static final Logger LOG = LoggerFactory.getLogger(FlowBasedEgressServicesConfigBindHelper.class);
  35
  36     private InterfacemgrProvider interfaceMgrProvider;
  37     private static volatile FlowBasedServicesConfigAddable flowBasedEgressServicesAddable;
  38
  39     private FlowBasedEgressServicesConfigBindHelper(InterfacemgrProvider interfaceMgrProvider) {
  40         this.interfaceMgrProvider = interfaceMgrProvider;
  41     }
  42
  43     public static void intitializeFlowBasedEgressServicesConfigAddHelper(InterfacemgrProvider interfaceMgrProvider) {
  44         if (flowBasedEgressServicesAddable == null) {
  45             synchronized (FlowBasedEgressServicesConfigBindHelper.class) {
  46                 if (flowBasedEgressServicesAddable == null) {
  47                     flowBasedEgressServicesAddable = new FlowBasedEgressServicesConfigBindHelper(interfaceMgrProvider);
  48                 }
  49             }
  50         }
  51     }
  52
  53     public static FlowBasedServicesConfigAddable getFlowBasedEgressServicesAddHelper() {
  54         if (flowBasedEgressServicesAddable == null) {
  55             LOG.error("OvsInterfaceConfigAdd Renderer is not initialized");
  56         }
  57         return flowBasedEgressServicesAddable;
  58     }
  59
  60     public List<ListenableFuture<Void>> bindService(InstanceIdentifier<BoundServices> instanceIdentifier,
  61                                                     BoundServices boundServiceNew) {
  62         List<ListenableFuture<Void>> futures = new ArrayList<>();
  63         DataBroker dataBroker = interfaceMgrProvider.getDataBroker();
  64         String interfaceName =
  65                 InstanceIdentifier.keyOf(instanceIdentifier.firstIdentifierOf(ServicesInfo.class)).getInterfaceName();
  66         Class<? extends ServiceModeBase> serviceMode = InstanceIdentifier.keyOf(instanceIdentifier.firstIdentifierOf(ServicesInfo.class)).getServiceMode();
  67
  68         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
  69                 InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
  70         if (ifState == null || ifState.getOperStatus() == OperStatus.Down) {
  71             LOG.warn("Interface not up, not Binding Service for Interface: {}", interfaceName);
  72             return futures;
  73         }
  74
  75         // Get the Parent ServiceInfo
  76         ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(interfaceName, serviceMode, dataBroker);
  77         if (servicesInfo == null) {
  78             LOG.error("Reached Impossible part 1 in the code during bind service for: {}", boundServiceNew);
  79             return futures;
  80         }
  81
  82         List<BoundServices> allServices = servicesInfo.getBoundServices();
  83         if (allServices.isEmpty()) {
  84             LOG.error("Reached Impossible part 2 in the code during bind service for: {}", boundServiceNew);
  85             return futures;
  86         }
  87
  88         // Split based on type of interface....
  89         if (ifState.getType().isAssignableFrom(L2vlan.class)) {
  90             return bindServiceOnVlan(boundServiceNew, allServices, ifState, dataBroker);
  91         } else if (ifState.getType().isAssignableFrom(Tunnel.class)) {
  92             return bindServiceOnTunnel(boundServiceNew, allServices, ifState, dataBroker);
  93         }
  94         return futures;
  95     }
  96
  97     private static List<ListenableFuture<Void>> bindServiceOnTunnel(BoundServices boundServiceNew, List<BoundServices> allServices,
  98                                                                     org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState, DataBroker dataBroker) {
  99         // TODO - binding egress services on tunnels is not supported currently
 100         return null;
 101     }
 102
 103     private static List<ListenableFuture<Void>> bindServiceOnVlan(BoundServices boundServiceNew, List<BoundServices> allServices,
 104                                                                   org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState, DataBroker dataBroker) {
 105         List<ListenableFuture<Void>> futures = new ArrayList<>();
 106         BigInteger dpId = FlowBasedServicesUtils.getDpnIdFromInterface(ifState);
 107         WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
 108         LOG.info("binding egress service for vlan port: {}", ifState.getName());
 109         if (allServices.size() == 1) {
 110             //calling LportDispatcherTableForService with current service index as 0 and next service index as
 111             // some value since this is the only service bound.
 112             FlowBasedServicesUtils.installEgressDispatcherFlow(dpId, boundServiceNew, ifState.getName(),
 113                     transaction, ifState.getIfIndex(), NwConstants.DEFAULT_SERVICE_INDEX, (short) (boundServiceNew.getServicePriority() + 1));
 114             if (transaction != null) {
 115                 futures.add(transaction.submit());
 116             }
 117             return futures;
 118         }
 119         allServices.remove(boundServiceNew);
 120         BoundServices[] highLowPriorityService = FlowBasedServicesUtils.getHighAndLowPriorityService(allServices, boundServiceNew);
 121         BoundServices low = highLowPriorityService[0];
 122         BoundServices high = highLowPriorityService[1];
 123         BoundServices highest = FlowBasedServicesUtils.getHighestPriorityService(allServices);
 124         short currentServiceIndex = NwConstants.DEFAULT_SERVICE_INDEX;
 125         short nextServiceIndex = ServiceIndex.getIndex(NwConstants.DEFAULT_EGRESS_SERVICE_NAME, NwConstants.DEFAULT_EGRESS_SERVICE_INDEX); // dummy service index
 126         if (low != null) {
 127             nextServiceIndex = low.getServicePriority();
 128             if (low.equals(highest)) {
 129                 //In this case the match criteria of existing service should be changed.
 130                 BoundServices lower = FlowBasedServicesUtils.getHighAndLowPriorityService(allServices, low)[0];
 131                 short lowerServiceIndex = (short) ((lower != null) ? lower.getServicePriority() : low.getServicePriority() + 1);
 132                 FlowBasedServicesUtils.installEgressDispatcherFlow(dpId, low, ifState.getName(), transaction, ifState.getIfIndex(), low.getServicePriority(), lowerServiceIndex);
 133             } else {
 134                 currentServiceIndex = boundServiceNew.getServicePriority();
 135             }
 136         }
 137         if (high != null) {
 138             currentServiceIndex = boundServiceNew.getServicePriority();
 139             if (high.equals(highest)) {
 140                 FlowBasedServicesUtils.installEgressDispatcherFlow(dpId, high, ifState.getName(), transaction, ifState.getIfIndex(), NwConstants.DEFAULT_SERVICE_INDEX, currentServiceIndex);
 141             } else {
 142                 FlowBasedServicesUtils.installEgressDispatcherFlow(dpId, high, ifState.getName(), transaction, ifState.getIfIndex(), high.getServicePriority(), currentServiceIndex);
 143             }
 144         }
 145         FlowBasedServicesUtils.installEgressDispatcherFlow(dpId, boundServiceNew, ifState.getName(), transaction, ifState.getIfIndex(), currentServiceIndex, nextServiceIndex);
 146         futures.add(transaction.submit());
 147         return futures;
 148     }
 149 }