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.service.bindings.services.info.BoundServices;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 public class FlowBasedEgressServicesStateBindHelper implements FlowBasedServicesStateAddable {
  32     private static final Logger LOG = LoggerFactory.getLogger(FlowBasedEgressServicesStateBindHelper.class);
  33
  34     private final InterfacemgrProvider interfaceMgrProvider;
  35     private static volatile FlowBasedServicesStateAddable flowBasedServicesStateAddable;
  36
  37     private FlowBasedEgressServicesStateBindHelper(InterfacemgrProvider interfaceMgrProvider) {
  38         this.interfaceMgrProvider = interfaceMgrProvider;
  39     }
  40
  41     public static void intitializeFlowBasedEgressServicesStateBindHelper(InterfacemgrProvider interfaceMgrProvider) {
  42         if (flowBasedServicesStateAddable == null) {
  43             synchronized (FlowBasedEgressServicesStateBindHelper.class) {
  44                 if (flowBasedServicesStateAddable == null) {
  45                     flowBasedServicesStateAddable = new FlowBasedEgressServicesStateBindHelper(interfaceMgrProvider);
  46                 }
  47             }
  48         }
  49     }
  50
  51     public static FlowBasedServicesStateAddable getFlowBasedEgressServicesStateBindHelper() {
  52         if (flowBasedServicesStateAddable == null) {
  53             LOG.error("OvsInterfaceConfigAdd Renderer is not initialized");
  54         }
  55         return flowBasedServicesStateAddable;
  56     }
  57
  58     @Override
  59     public List<ListenableFuture<Void>> bindServicesOnInterface(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             return bindServices(allServices, ifaceState, interfaceMgrProvider.getDataBroker());
  63         }
  64         return null;
  65     }
  66
  67     private static List<ListenableFuture<Void>> bindServices(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         List<ListenableFuture<Void>> futures = new ArrayList<>();
  98         futures.add(writeTransaction.submit());
  99         return futures;
 100     }
 101 }