--- /dev/null
+/*
+ * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.vpnservice.interfacemgr.servicebindings.flowbased.confighelpers;
+
+import com.google.common.util.concurrent.ListenableFuture;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
+import org.opendaylight.vpnservice.interfacemgr.IfmConstants;
+import org.opendaylight.vpnservice.interfacemgr.IfmUtil;
+import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceManagerCommonUtils;
+import org.opendaylight.vpnservice.interfacemgr.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
+import org.opendaylight.vpnservice.mdsalutil.MatchInfo;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.servicebinding.rev151015.service.bindings.ServicesInfo;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.servicebinding.rev151015.service.bindings.services.info.BoundServices;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfL2vlan;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.math.BigInteger;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class FlowBasedServicesConfigUnbindHelper {
+ private static final Logger LOG = LoggerFactory.getLogger(FlowBasedServicesConfigUnbindHelper.class);
+
+ public static List<ListenableFuture<Void>> unbindService(InstanceIdentifier<BoundServices> instanceIdentifier,
+ BoundServices boundServiceOld, DataBroker dataBroker) {
+ List<ListenableFuture<Void>> futures = new ArrayList<>();
+ WriteTransaction t = null;
+
+ String interfaceName =
+ InstanceIdentifier.keyOf(instanceIdentifier.firstIdentifierOf(ServicesInfo.class)).getInterfaceName();
+ org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
+ InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
+ if (ifState == null || ifState.getOperStatus() == OperStatus.Down) {
+ LOG.info("Not unbinding Service since operstatus is {} for Interface: {}",
+ ifState.getOperStatus(), interfaceName);
+ return futures;
+ }
+
+ // Get the Parent ServiceInfo
+ ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(interfaceName, dataBroker);
+ if (servicesInfo == null) {
+ LOG.error("Reached Impossible part in the code for bound service: {}", boundServiceOld);
+ return futures;
+ }
+
+ InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
+ Interface iface = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
+ NodeConnectorId nodeConnectorId = FlowBasedServicesUtils.getNodeConnectorIdFromInterface(iface, dataBroker);
+ long portNo = Long.parseLong(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
+ BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
+ Long lportTag = FlowBasedServicesUtils.getLPortTag(iface, dataBroker);
+ int vlanId = 0;
+ if (iface.getType().isAssignableFrom(L2vlan.class)) {
+ vlanId = iface.getAugmentation(IfL2vlan.class).getVlanId().getValue();
+ }
+ List<BoundServices> boundServices = servicesInfo.getBoundServices();
+ if (boundServices.isEmpty()) {
+ // Remove entry from Ingress Table.
+ FlowBasedServicesUtils.removeIngressFlow(iface, boundServiceOld, dpId, dataBroker, t);
+ if (t != null) {
+ futures.add(t.submit());
+ }
+ return futures;
+ }
+
+ Map<Short, BoundServices> tmpServicesMap = new ConcurrentHashMap<>();
+ short highestPriority = 0xFF;
+ for (BoundServices boundService : boundServices) {
+ tmpServicesMap.put(boundService.getServicePriority(), boundService);
+ if (boundService.getServicePriority() < highestPriority) {
+ highestPriority = boundService.getServicePriority();
+ }
+ }
+
+ if (highestPriority < boundServiceOld.getServicePriority()) {
+ FlowBasedServicesUtils.removeLPortDispatcherFlow(dpId, iface, boundServiceOld, dataBroker, t);
+ if (t != null) {
+ futures.add(t.submit());
+ }
+ return futures;
+ }
+
+ List<MatchInfo> matches = null;
+ if (iface.getType().isAssignableFrom(L2vlan.class)) {
+ matches = FlowBasedServicesUtils.getMatchInfoForVlanPortAtIngressTable(dpId, portNo, vlanId);
+ } else if (iface.getType().isAssignableFrom(Tunnel.class)){
+ matches = FlowBasedServicesUtils.getMatchInfoForTunnelPortAtIngressTable (dpId, portNo, iface);
+ }
+
+ BoundServices toBeMoved = tmpServicesMap.get(highestPriority);
+ FlowBasedServicesUtils.removeIngressFlow(iface, boundServiceOld, dpId, dataBroker, t);
+ FlowBasedServicesUtils.installInterfaceIngressFlow(dpId, vlanId, toBeMoved, dataBroker, t,
+ matches, lportTag.intValue(), IfmConstants.VLAN_INTERFACE_INGRESS_TABLE);
+ FlowBasedServicesUtils.removeLPortDispatcherFlow(dpId, iface, toBeMoved, dataBroker, t);
+
+ if (t != null) {
+ futures.add(t.submit());
+ }
+ return futures;
+ }
+}
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