interfacemanager/interfacemanager-impl/src/main/java/org/opendaylight/genius/interfacemanager/servicebindings/flowbased/state/helpers/FlowBasedEgressServicesStateBindHelper.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.state.helpers;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import java.math.BigInteger;
  12 import java.util.ArrayList;
  13 import java.util.Collections;
  14 import java.util.List;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  17 import org.opendaylight.genius.interfacemanager.IfmUtil;
  18 import org.opendaylight.genius.interfacemanager.InterfacemgrProvider;
  19 import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
  20 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.state.factory.FlowBasedServicesStateAddable;
  21 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  22 import org.opendaylight.genius.mdsalutil.NwConstants;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.ServiceModeEgress;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.ServicesInfo;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.services.info.BoundServices;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class FlowBasedEgressServicesStateBindHelper implements FlowBasedServicesStateAddable{
  34     private static final Logger LOG = LoggerFactory.getLogger(FlowBasedEgressServicesStateBindHelper.class);
  35
  36     private InterfacemgrProvider interfaceMgrProvider;
  37     private static volatile FlowBasedServicesStateAddable flowBasedServicesStateAddable;
  38
  39     private FlowBasedEgressServicesStateBindHelper(InterfacemgrProvider interfaceMgrProvider) {
  40         this.interfaceMgrProvider = interfaceMgrProvider;
  41     }
  42
  43     public static void intitializeFlowBasedEgressServicesStateBindHelper(InterfacemgrProvider interfaceMgrProvider) {
  44         if (flowBasedServicesStateAddable == null) {
  45             synchronized (FlowBasedEgressServicesStateBindHelper.class) {
  46                 if (flowBasedServicesStateAddable == null) {
  47                     flowBasedServicesStateAddable = new FlowBasedEgressServicesStateBindHelper(interfaceMgrProvider);
  48                 }
  49             }
  50         }
  51     }
  52
  53     public static FlowBasedServicesStateAddable getFlowBasedEgressServicesStateBindHelper() {
  54         if (flowBasedServicesStateAddable == null) {
  55             LOG.error("OvsInterfaceConfigAdd Renderer is not initialized");
  56         }
  57         return flowBasedServicesStateAddable;
  58     }
  59
  60     public List<ListenableFuture<Void>> bindServicesOnInterface(Interface ifaceState) {
  61         List<ListenableFuture<Void>> futures = new ArrayList<>();
  62         LOG.debug("binding services on interface {}", ifaceState.getName());
  63         DataBroker dataBroker = interfaceMgrProvider.getDataBroker();
  64         ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(ifaceState.getName(), ServiceModeEgress.class, dataBroker);
  65         if (servicesInfo == null) {
  66             LOG.trace("service info is null for interface {}", ifaceState.getName());
  67             return futures;
  68         }
  69
  70         List<BoundServices> allServices = servicesInfo.getBoundServices();
  71         if (allServices == null || allServices.isEmpty()) {
  72             LOG.trace("bound services is empty for interface {}", ifaceState.getName());
  73             return futures;
  74         }
  75
  76         if (L2vlan.class.equals(ifaceState.getType())
  77             || Tunnel.class.equals(ifaceState.getType())) {
  78             return bindServices(allServices, ifaceState, dataBroker);
  79         }
  80         return futures;
  81     }
  82
  83     private static List<ListenableFuture<Void>> bindServices(
  84             List<BoundServices> allServices,
  85             Interface ifState, DataBroker dataBroker) {
  86         LOG.info("bind all egress services for interface: {}", ifState.getName());
  87         List<ListenableFuture<Void>> futures = new ArrayList<>();
  88         NodeConnectorId nodeConnectorId = FlowBasedServicesUtils.getNodeConnectorIdFromInterface(ifState);
  89         BigInteger dpId = IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId);
  90         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
  91         Collections.sort(allServices,
  92                 (serviceInfo1, serviceInfo2) -> serviceInfo1.getServicePriority().compareTo(serviceInfo2.getServicePriority()));
  93         BoundServices highestPriority = allServices.remove(0);
  94         short nextServiceIndex = (short) (allServices.size() > 0 ? allServices.get(0).getServicePriority() : highestPriority.getServicePriority() + 1);
  95         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(ifState.getName(), dataBroker);
  96         FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, highestPriority, ifState.getName(), t, ifState.getIfIndex(), NwConstants.DEFAULT_SERVICE_INDEX, nextServiceIndex, iface);
  97         BoundServices prev = null;
  98         for (BoundServices boundService : allServices) {
  99             if (prev!=null) {
 100                 FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, prev, ifState.getName(), t, ifState.getIfIndex(), prev.getServicePriority(), boundService.getServicePriority(), iface);
 101             }
 102             prev = boundService;
 103         }
 104         if (prev!=null) {
 105             FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, prev, ifState.getName(), t, ifState.getIfIndex(), prev.getServicePriority(), (short) (prev.getServicePriority()+1), iface);
 106         }
 107         futures.add(t.submit());
 108         return futures;
 109
 110     }
 111
 112 }