interfacemanager/interfacemanager-impl/src/main/java/org/opendaylight/genius/interfacemanager/servicebindings/flowbased/state/helpers/FlowBasedEgressServicesStateBindHelper.java

   1 /*
   2  * Copyright (c) 2016, 2017 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.state.helpers;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import java.math.BigInteger;
  12 import java.util.Collections;
  13 import java.util.List;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  16 import org.opendaylight.genius.interfacemanager.IfmUtil;
  17 import org.opendaylight.genius.interfacemanager.InterfacemgrProvider;
  18 import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
  19 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.state.factory.FlowBasedServicesStateAddable;
  20 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  21 import org.opendaylight.genius.mdsalutil.NwConstants;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.services.info.BoundServices;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public class FlowBasedEgressServicesStateBindHelper implements FlowBasedServicesStateAddable {
  31     private static final Logger LOG = LoggerFactory.getLogger(FlowBasedEgressServicesStateBindHelper.class);
  32
  33     private final InterfacemgrProvider interfaceMgrProvider;
  34     private static volatile FlowBasedServicesStateAddable flowBasedServicesStateAddable;
  35
  36     private FlowBasedEgressServicesStateBindHelper(InterfacemgrProvider interfaceMgrProvider) {
  37         this.interfaceMgrProvider = interfaceMgrProvider;
  38     }
  39
  40     public static void intitializeFlowBasedEgressServicesStateBindHelper(InterfacemgrProvider interfaceMgrProvider) {
  41         if (flowBasedServicesStateAddable == null) {
  42             synchronized (FlowBasedEgressServicesStateBindHelper.class) {
  43                 if (flowBasedServicesStateAddable == null) {
  44                     flowBasedServicesStateAddable = new FlowBasedEgressServicesStateBindHelper(interfaceMgrProvider);
  45                 }
  46             }
  47         }
  48     }
  49
  50     public static FlowBasedServicesStateAddable getFlowBasedEgressServicesStateBindHelper() {
  51         if (flowBasedServicesStateAddable == null) {
  52             LOG.error("OvsInterfaceConfigAdd Renderer is not initialized");
  53         }
  54         return flowBasedServicesStateAddable;
  55     }
  56
  57     @Override
  58     public void bindServicesOnInterface(List<ListenableFuture<Void>> futures,
  59                                                                 Interface ifaceState, List<BoundServices> allServices) {
  60         LOG.debug("binding services on interface {}", ifaceState.getName());
  61         if (L2vlan.class.equals(ifaceState.getType()) || Tunnel.class.equals(ifaceState.getType())) {
  62             bindServices(futures, allServices, ifaceState, interfaceMgrProvider.getDataBroker());
  63         }
  64     }
  65
  66     private static void bindServices(List<ListenableFuture<Void>> futures,
  67                                                              List<BoundServices> allServices, Interface ifState,
  68                                                              DataBroker dataBroker) {
  69         LOG.info("bind all egress services for interface: {}", ifState.getName());
  70
  71         NodeConnectorId nodeConnectorId = FlowBasedServicesUtils.getNodeConnectorIdFromInterface(ifState);
  72         BigInteger dpId = IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId);
  73         WriteTransaction writeTransaction = dataBroker.newWriteOnlyTransaction();
  74         Collections.sort(allServices, (serviceInfo1, serviceInfo2) -> serviceInfo1.getServicePriority()
  75                 .compareTo(serviceInfo2.getServicePriority()));
  76         BoundServices highestPriority = allServices.remove(0);
  77         short nextServiceIndex = (short) (allServices.size() > 0 ? allServices.get(0).getServicePriority()
  78                 : highestPriority.getServicePriority() + 1);
  79         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
  80             .ietf.interfaces.rev140508.interfaces.Interface iface = InterfaceManagerCommonUtils
  81                 .getInterfaceFromConfigDS(ifState.getName(), dataBroker);
  82         FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, highestPriority, ifState.getName(), writeTransaction,
  83                 ifState.getIfIndex(), NwConstants.DEFAULT_SERVICE_INDEX, nextServiceIndex, iface);
  84         BoundServices prev = null;
  85         for (BoundServices boundService : allServices) {
  86             if (prev != null) {
  87                 FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, prev, ifState.getName(), writeTransaction,
  88                         ifState.getIfIndex(), prev.getServicePriority(), boundService.getServicePriority(), iface);
  89             }
  90             prev = boundService;
  91         }
  92         if (prev != null) {
  93             FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, prev, ifState.getName(), writeTransaction,
  94                     ifState.getIfIndex(),
  95                     prev.getServicePriority(), (short) (prev.getServicePriority() + 1), iface);
  96         }
  97         futures.add(writeTransaction.submit());
  98     }
  99 }