2 * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others. All rights reserved.
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
8 package org.opendaylight.genius.interfacemanager.servicebindings.flowbased.config.helpers;
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.InterfacemgrProvider;
15 import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
16 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.config.factory.FlowBasedServicesConfigRemovable;
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.Interface;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.servicebinding.rev160406.ServiceModeBase;
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.yangtools.yang.binding.InstanceIdentifier;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 import java.math.BigInteger;
31 import java.util.ArrayList;
32 import java.util.List;
34 public class FlowBasedEgressServicesConfigUnbindHelper implements FlowBasedServicesConfigRemovable {
35 private static final Logger LOG = LoggerFactory.getLogger(FlowBasedEgressServicesConfigUnbindHelper.class);
37 private InterfacemgrProvider interfaceMgrProvider;
38 private static volatile FlowBasedServicesConfigRemovable flowBasedEgressServicesRemovable;
40 private FlowBasedEgressServicesConfigUnbindHelper(InterfacemgrProvider interfaceMgrProvider) {
41 this.interfaceMgrProvider = interfaceMgrProvider;
44 public static void intitializeFlowBasedEgressServicesConfigRemoveHelper(InterfacemgrProvider interfaceMgrProvider) {
45 if (flowBasedEgressServicesRemovable == null) {
46 synchronized (FlowBasedEgressServicesConfigUnbindHelper.class) {
47 if (flowBasedEgressServicesRemovable == null) {
48 flowBasedEgressServicesRemovable = new FlowBasedEgressServicesConfigUnbindHelper(interfaceMgrProvider);
54 public static FlowBasedServicesConfigRemovable getFlowBasedEgressServicesRemoveHelper() {
55 if (flowBasedEgressServicesRemovable == null) {
56 LOG.error("FlowBasedIngressBindHelper`` is not initialized");
58 return flowBasedEgressServicesRemovable;
61 public List<ListenableFuture<Void>> unbindService(InstanceIdentifier<BoundServices> instanceIdentifier,
62 BoundServices boundServiceOld) {
63 List<ListenableFuture<Void>> futures = new ArrayList<>();
64 DataBroker dataBroker = interfaceMgrProvider.getDataBroker();
65 String interfaceName =
66 InstanceIdentifier.keyOf(instanceIdentifier.firstIdentifierOf(ServicesInfo.class)).getInterfaceName();
67 Class<? extends ServiceModeBase> serviceMode = InstanceIdentifier.keyOf(instanceIdentifier.firstIdentifierOf(ServicesInfo.class)).getServiceMode();
69 // Get the Parent ServiceInfo
70 ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(interfaceName, serviceMode, dataBroker);
71 if (servicesInfo == null) {
72 LOG.error("Reached Impossible part in the code for bound service: {}", boundServiceOld);
76 org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
77 InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
78 if (ifState == null || ifState.getOperStatus() == OperStatus.Down) {
79 LOG.info("Not unbinding Service since operstatus is DOWN for Interface: {}", interfaceName);
82 List<BoundServices> boundServices = servicesInfo.getBoundServices();
84 // Split based on type of interface....
85 if (ifState.getType().isAssignableFrom(L2vlan.class)) {
86 return unbindServiceOnVlan(boundServiceOld, boundServices, ifState, dataBroker);
87 } else if (ifState.getType().isAssignableFrom(Tunnel.class)) {
88 return unbindServiceOnTunnel(boundServiceOld, boundServices, ifState, dataBroker);
93 private static List<ListenableFuture<Void>> unbindServiceOnVlan(
94 BoundServices boundServiceOld,
95 List<BoundServices> boundServices, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifaceState,
96 DataBroker dataBroker) {
98 List<ListenableFuture<Void>> futures = new ArrayList<>();
99 WriteTransaction t = dataBroker.newWriteOnlyTransaction();
100 Interface iface = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(ifaceState.getName(), dataBroker);
101 BigInteger dpId = FlowBasedServicesUtils.getDpnIdFromInterface(ifaceState);
102 if (boundServices.isEmpty()) {
103 // Remove default entry from Lport Dispatcher Table.
104 FlowBasedServicesUtils.removeEgressDispatcherFlows(dpId, ifaceState.getName(), boundServiceOld, t, NwConstants.DEFAULT_SERVICE_INDEX);
106 futures.add(t.submit());
110 BoundServices[] highLow = FlowBasedServicesUtils.getHighAndLowPriorityService(boundServices, boundServiceOld);
111 BoundServices low = highLow[0];
112 BoundServices high = highLow[1];
113 // This means the one removed was the highest priority service
115 FlowBasedServicesUtils.removeEgressDispatcherFlows(dpId, ifaceState.getName(), boundServiceOld, t, NwConstants.DEFAULT_SERVICE_INDEX);
117 //delete the lower services flow entry.
118 FlowBasedServicesUtils.removeEgressDispatcherFlows(dpId, ifaceState.getName(), low, t, low.getServicePriority());
119 BoundServices lower = FlowBasedServicesUtils.getHighAndLowPriorityService(boundServices, low)[0];
120 short lowerServiceIndex = (short) ((lower!=null) ? lower.getServicePriority() : low.getServicePriority() + 1);
121 FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, low, ifaceState.getName(), t, ifaceState.getIfIndex(), NwConstants.DEFAULT_SERVICE_INDEX, lowerServiceIndex, iface);
124 FlowBasedServicesUtils.removeEgressDispatcherFlows(dpId, ifaceState.getName(), boundServiceOld, t, boundServiceOld.getServicePriority());
125 short lowerServiceIndex = (short) ((low!=null) ? low.getServicePriority() : boundServiceOld.getServicePriority() + 1);
126 BoundServices highest = FlowBasedServicesUtils.getHighestPriorityService(boundServices);
127 if (high.equals(highest)) {
128 FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, high, ifaceState.getName(),t, ifaceState.getIfIndex(), NwConstants.DEFAULT_SERVICE_INDEX, lowerServiceIndex, iface);
130 FlowBasedServicesUtils.installEgressDispatcherFlows(dpId, high, ifaceState.getName(),t, ifaceState.getIfIndex(), high.getServicePriority(), lowerServiceIndex, iface);
133 futures.add(t.submit());
137 private static List<ListenableFuture<Void>> unbindServiceOnTunnel(
138 BoundServices boundServiceOld,
139 List<BoundServices> boundServices, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState,
140 DataBroker dataBroker) {
141 List<ListenableFuture<Void>> futures = new ArrayList<>();
143 // FIXME : not yet supported