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.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 final 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     @Override
  61     public List<ListenableFuture<Void>> bindServicesOnInterface(Interface ifaceState) {
  62         List<ListenableFuture<Void>> futures = new ArrayList<>();
  63         LOG.debug("binding services on interface {}", ifaceState.getName());
  64         DataBroker dataBroker = interfaceMgrProvider.getDataBroker();
  65         ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(ifaceState.getName(),
  66                 ServiceModeEgress.class, dataBroker);
  67         if (servicesInfo == null) {
  68             LOG.trace("service info is null for interface {}", ifaceState.getName());
  69             return futures;
  70         }
  71
  72         List<BoundServices> allServices = servicesInfo.getBoundServices();
  73         if (allServices == null || allServices.isEmpty()) {
  74             LOG.trace("bound services is empty for interface {}", ifaceState.getName());
  75             return futures;
  76         }
  77
  78         if (L2vlan.class.equals(ifaceState.getType()) || Tunnel.class.equals(ifaceState.getType())) {
  79             return bindServices(allServices, ifaceState, dataBroker);
  80         }
  81         return futures;
  82     }
  83
  84     private static List<ListenableFuture<Void>> bindServices(List<BoundServices> allServices, Interface ifState,
  85             DataBroker dataBroker) {
  86         LOG.info("bind all egress services for interface: {}", ifState.getName());
  87
  88         NodeConnectorId nodeConnectorId = FlowBasedServicesUtils.getNodeConnectorIdFromInterface(ifState);
  89         BigInteger dpId = IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId);
  90         WriteTransaction writeTransaction = dataBroker.newWriteOnlyTransaction();
  91         Collections.sort(allServices, (serviceInfo1, serviceInfo2) -> serviceInfo1.getServicePriority()
  92                 .compareTo(serviceInfo2.getServicePriority()));
  93         BoundServices highestPriority = allServices.remove(0);
  94         short nextServiceIndex = (short) (allServices.size() > 0 ? allServices.get(0).getServicePriority()
  95                 : highestPriority.getServicePriority() + 1);
  96         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
  97             .ietf.interfaces.rev140508.interfaces.Interface iface = InterfaceManagerCommonUtils
  98                 .getInterfaceFromConfigDS(ifState.getName(), dataBroker);
  99         FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, highestPriority, ifState.getName(), writeTransaction,
 100                 ifState.getIfIndex(), NwConstants.DEFAULT_SERVICE_INDEX, nextServiceIndex, iface);
 101         BoundServices prev = null;
 102         for (BoundServices boundService : allServices) {
 103             if (prev != null) {
 104                 FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, prev, ifState.getName(), writeTransaction,
 105                         ifState.getIfIndex(), prev.getServicePriority(), boundService.getServicePriority(), iface);
 106             }
 107             prev = boundService;
 108         }
 109         if (prev != null) {
 110             FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, prev, ifState.getName(), writeTransaction,
 111                     ifState.getIfIndex(),
 112                     prev.getServicePriority(), (short) (prev.getServicePriority() + 1), iface);
 113         }
 114         List<ListenableFuture<Void>> futures = new ArrayList<>();
 115         futures.add(writeTransaction.submit());
 116         return futures;
 117     }
 118 }