interfacemanager/interfacemanager-impl/src/main/java/org/opendaylight/genius/interfacemanager/servicebindings/flowbased/state/helpers/FlowBasedEgressServicesStateUnbindHelper.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 org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  13 import org.opendaylight.genius.interfacemanager.IfmConstants;
  14 import org.opendaylight.genius.interfacemanager.IfmUtil;
  15 import org.opendaylight.genius.interfacemanager.InterfacemgrProvider;
  16 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.state.factory.FlowBasedServicesStateRemovable;
  17 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  18 import org.opendaylight.genius.mdsalutil.NwConstants;
  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;
  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.ServiceModeEgress;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.service.bindings.ServicesInfo;
  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 import java.math.BigInteger;
  31 import java.util.ArrayList;
  32 import java.util.Collections;
  33 import java.util.Comparator;
  34 import java.util.List;
  35
  36 public class FlowBasedEgressServicesStateUnbindHelper implements FlowBasedServicesStateRemovable{
  37     private static final Logger LOG = LoggerFactory.getLogger(FlowBasedEgressServicesStateUnbindHelper.class);
  38
  39     private InterfacemgrProvider interfaceMgrProvider;
  40     private static volatile FlowBasedServicesStateRemovable flowBasedServicesStateRemovable;
  41
  42     private FlowBasedEgressServicesStateUnbindHelper(InterfacemgrProvider interfaceMgrProvider) {
  43         this.interfaceMgrProvider = interfaceMgrProvider;
  44     }
  45
  46     public static void intitializeFlowBasedEgressServicesStateUnbindHelper(InterfacemgrProvider interfaceMgrProvider) {
  47         if (flowBasedServicesStateRemovable == null) {
  48             synchronized (FlowBasedEgressServicesStateUnbindHelper.class) {
  49                 if (flowBasedServicesStateRemovable == null) {
  50                     flowBasedServicesStateRemovable = new FlowBasedEgressServicesStateUnbindHelper(interfaceMgrProvider);
  51                 }
  52             }
  53         }
  54     }
  55
  56     public static FlowBasedServicesStateRemovable getFlowBasedEgressServicesStateRemoveHelper() {
  57         if (flowBasedServicesStateRemovable == null) {
  58             LOG.error("FlowBasedIngressBindHelper`` is not initialized");
  59         }
  60         return flowBasedServicesStateRemovable;
  61     }
  62     public List<ListenableFuture<Void>> unbindServicesFromInterface(Interface ifaceState) {
  63         List<ListenableFuture<Void>> futures = new ArrayList<>();
  64         if(ifaceState.getType() == null) {
  65             return futures;
  66         }
  67         LOG.debug("unbinding services on interface {}", ifaceState.getName());
  68
  69         DataBroker dataBroker = interfaceMgrProvider.getDataBroker();
  70         ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(ifaceState.getName(), ServiceModeEgress.class, dataBroker);
  71         if (servicesInfo == null) {
  72             LOG.trace("service info is null for interface {}", ifaceState.getName());
  73             return futures;
  74         }
  75
  76         List<BoundServices> allServices = servicesInfo.getBoundServices();
  77         if (allServices == null || allServices.isEmpty()) {
  78             LOG.trace("bound services is empty for interface {}", ifaceState.getName());
  79             return futures;
  80         }
  81
  82         if (ifaceState.getType().isAssignableFrom(L2vlan.class)) {
  83             return unbindServiceOnVlan(allServices, ifaceState, ifaceState.getIfIndex(), dataBroker);
  84         } else if (ifaceState.getType().isAssignableFrom(Tunnel.class)){
  85             return unbindServiceOnTunnel(allServices, ifaceState, ifaceState.getIfIndex(), dataBroker);
  86         }
  87         return futures;
  88     }
  89
  90     private static List<ListenableFuture<Void>> unbindServiceOnTunnel(
  91             List<BoundServices> allServices,
  92             Interface iface,
  93             Integer ifIndex, DataBroker dataBroker) {
  94         List<ListenableFuture<Void>> futures = new ArrayList<>();
  95         //FIXME : not supported yet
  96         return futures;
  97     }
  98
  99     private static List<ListenableFuture<Void>> unbindServiceOnVlan(
 100             List<BoundServices> allServices, Interface ifaceState,
 101             Integer ifIndex, DataBroker dataBroker) {
 102         List<ListenableFuture<Void>> futures = new ArrayList<>();
 103         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
 104         List<String> ofportIds = ifaceState.getLowerLayerIf();
 105         NodeConnectorId nodeConnectorId = new NodeConnectorId(ofportIds.get(0));
 106         if(nodeConnectorId == null){
 107             return futures;
 108         }
 109         BigInteger dpId = IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId);
 110         Collections.sort(allServices, new Comparator<BoundServices>() {
 111             @Override
 112             public int compare(BoundServices serviceInfo1, BoundServices serviceInfo2) {
 113                 return serviceInfo1.getServicePriority().compareTo(serviceInfo2.getServicePriority());
 114             }
 115         });
 116         BoundServices highestPriority = allServices.remove(0);
 117         FlowBasedServicesUtils.removeEgressDispatcherFlow(dpId, ifaceState.getName(), highestPriority, t, NwConstants.DEFAULT_SERVICE_INDEX);
 118         for (BoundServices boundService : allServices) {
 119             FlowBasedServicesUtils.removeEgressDispatcherFlow(dpId, ifaceState.getName(), boundService, t, boundService.getServicePriority());
 120         }
 121         futures.add(t.submit());
 122         return futures;
 123
 124     }
 125
 126 }