Fixing issues with batching transactions during bind service
[vpnservice.git] / interfacemgr / interfacemgr-impl / src / main / java / org / opendaylight / vpnservice / interfacemgr / servicebindings / flowbased / confighelpers / FlowBasedServicesConfigBindHelper.java
1 /*
2  * Copyright (c) 2015 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.vpnservice.interfacemgr.servicebindings.flowbased.confighelpers;
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.vpnservice.interfacemgr.IfmConstants;
14 import org.opendaylight.vpnservice.interfacemgr.IfmUtil;
15 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceManagerCommonUtils;
16 import org.opendaylight.vpnservice.interfacemgr.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
17 import org.opendaylight.vpnservice.mdsalutil.MatchInfo;
18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
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.inventory.rev130819.NodeConnectorId;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.servicebinding.rev151015.service.bindings.ServicesInfo;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.servicebinding.rev151015.service.bindings.services.info.BoundServices;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfL2vlan;
27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
30
31 import java.math.BigInteger;
32 import java.util.ArrayList;
33 import java.util.List;
34 import java.util.Map;
35 import java.util.concurrent.ConcurrentHashMap;
36
37 public class FlowBasedServicesConfigBindHelper {
38     private static final Logger LOG = LoggerFactory.getLogger(FlowBasedServicesConfigBindHelper.class);
39
40     public static List<ListenableFuture<Void>> bindService(InstanceIdentifier<BoundServices> instanceIdentifier,
41                                                            BoundServices boundServiceNew, DataBroker dataBroker) {
42         List<ListenableFuture<Void>> futures = new ArrayList<>();
43         WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
44         String interfaceName =
45                 InstanceIdentifier.keyOf(instanceIdentifier.firstIdentifierOf(ServicesInfo.class)).getInterfaceName();
46
47         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
48                 InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
49         if (ifState == null || ifState.getOperStatus() == OperStatus.Down) {
50             LOG.warn("Interface not up, not Binding Service for Interface: {}", interfaceName);
51             return futures;
52         }
53
54         // Get the Parent ServiceInfo
55
56         ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(interfaceName, dataBroker);
57         if (servicesInfo == null) {
58             LOG.error("Reached Impossible part 1 in the code during bind service for: {}", boundServiceNew);
59             return futures;
60         }
61
62         InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
63         Interface iface = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
64
65         List<BoundServices> allServices = servicesInfo.getBoundServices();
66         if (allServices.isEmpty()) {
67             LOG.error("Reached Impossible part 2 in the code during bind service for: {}", boundServiceNew);
68             return futures;
69         }
70
71         NodeConnectorId nodeConnectorId = FlowBasedServicesUtils.getNodeConnectorIdFromInterface(iface, dataBroker);
72         long portNo = Long.parseLong(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
73         BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
74
75         if (allServices.size() == 1) {
76             // If only one service present, install instructions in table 0.
77             int vlanId = 0;
78             List<MatchInfo> matches = null;
79             if (iface.getType().isAssignableFrom(L2vlan.class)) {
80                 matches = FlowBasedServicesUtils.getMatchInfoForVlanPortAtIngressTable(dpId, portNo, iface);
81             } else if (iface.getType().isAssignableFrom(Tunnel.class)){
82                 matches = FlowBasedServicesUtils.getMatchInfoForTunnelPortAtIngressTable (dpId, portNo, iface);
83             }
84
85             if (matches != null) {
86                 FlowBasedServicesUtils.installInterfaceIngressFlow(dpId, iface, boundServiceNew,
87                         transaction, matches, ifState.getIfIndex(), IfmConstants.VLAN_INTERFACE_INGRESS_TABLE);
88             }
89
90             if (transaction != null) {
91                 futures.add(transaction.submit());
92             }
93             return futures;
94         }
95
96         boolean isCurrentServiceHighestPriority = true;
97         Map<Short, BoundServices> tmpServicesMap = new ConcurrentHashMap<>();
98         short highestPriority = 0xFF;
99         for (BoundServices boundService : allServices) {
100             if (boundService.getServicePriority() < boundServiceNew.getServicePriority()) {
101                 isCurrentServiceHighestPriority = false;
102                 break;
103             }
104             if (!boundService.equals(boundServiceNew)) {
105                 tmpServicesMap.put(boundService.getServicePriority(), boundService);
106                 if (boundService.getServicePriority() < highestPriority) {
107                     highestPriority = boundService.getServicePriority();
108                 }
109             }
110         }
111
112         if (!isCurrentServiceHighestPriority) {
113             FlowBasedServicesUtils.installLPortDispatcherFlow(dpId, boundServiceNew, iface, transaction,
114                     ifState.getIfIndex());
115         } else {
116             BoundServices serviceToReplace = tmpServicesMap.get(highestPriority);
117             FlowBasedServicesUtils.installLPortDispatcherFlow(dpId, serviceToReplace, iface, transaction,
118                     ifState.getIfIndex());
119             List<MatchInfo> matches = null;
120             if (iface.getType().isAssignableFrom(L2vlan.class)) {
121                 matches = FlowBasedServicesUtils.getMatchInfoForVlanPortAtIngressTable(dpId, portNo, iface);
122             } else if (iface.getType().isAssignableFrom(Tunnel.class)){
123                 matches = FlowBasedServicesUtils.getMatchInfoForTunnelPortAtIngressTable (dpId, portNo, iface);
124             }
125
126             if (matches != null) {
127
128                 WriteTransaction removeFlowTransaction = dataBroker.newWriteOnlyTransaction();
129                 FlowBasedServicesUtils.removeIngressFlow(iface, serviceToReplace, dpId, removeFlowTransaction);
130                 futures.add(removeFlowTransaction.submit());
131
132                 WriteTransaction installFlowTransaction = dataBroker.newWriteOnlyTransaction();
133                 FlowBasedServicesUtils.installInterfaceIngressFlow(dpId, iface, boundServiceNew, installFlowTransaction,
134                         matches, ifState.getIfIndex(), IfmConstants.VLAN_INTERFACE_INGRESS_TABLE);
135                 futures.add(installFlowTransaction.submit());
136             }
137         }
138
139         if (transaction != null) {
140             futures.add(transaction.submit());
141         }
142         return futures;
143     }
144 }