java.lang.Object
- org.opendaylight.netvirt.vpnmanager.arp.responder.ArpResponderHandler

```
@Singleton
public class ArpResponderHandler
extends java.lang.Object
```
Class that is responsible for handling ARP Responder flows which involves to differentiate between router and connected mac cases, identify DPNs and installation and uninstallation of flows.

Constructor Summary

Constructors
Constructor	Description
`ArpResponderHandler(org.opendaylight.controller.md.sal.binding.api.DataBroker dataBroker, IElanService elanService, org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager interfaceManager, org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rpcs.rev160406.ItmRpcService itmRpcService, VpnUtil vpnUtil)`	Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addArpResponderFlow(org.opendaylight.yangtools.yang.common.Uint64 dpnId, int lportTag, java.lang.String interfaceName, java.lang.String gatewayIp, java.lang.String mac)`	Add ARP Responder flow, by invoking ELan RPC service.
`com.google.common.base.Optional<java.lang.String>`	`getGatewayMacAddressForInterface(VpnPortipToPort gwPort, java.lang.String ifName)`	Get Mac address from given gateway port and interface name.
`void`	`removeArpResponderFlow(org.opendaylight.yangtools.yang.common.Uint64 dpId, int lportTag, java.lang.String ifName, java.lang.String gatewayIp, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid subnetUuid)`	Remove ARP Responder flow when VM interface is removed, by invoking ELan RPC service.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ArpResponderHandler

@Inject
public ArpResponderHandler(org.opendaylight.controller.md.sal.binding.api.DataBroker dataBroker,
                           IElanService elanService,
                           org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager interfaceManager,
                           org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rpcs.rev160406.ItmRpcService itmRpcService,
                           VpnUtil vpnUtil)

Constructor.

Parameters:: dataBroker - dataBroker; elanService - elanService; interfaceManager - interfaceManager; itmRpcService - itmRpcService; vpnUtil - vpnUtil

Method Detail

addArpResponderFlow

public void addArpResponderFlow(org.opendaylight.yangtools.yang.common.Uint64 dpnId,
                                int lportTag,
                                java.lang.String interfaceName,
                                java.lang.String gatewayIp,
                                java.lang.String mac)

Add ARP Responder flow, by invoking ELan RPC service.

Parameters:: dpnId - dpn Id on which ARP responder flow to be added; lportTag - lport tag of the interface; interfaceName - interface to which ARP responder flow to be added; gatewayIp - gateway ip of the interface; mac - mac address

removeArpResponderFlow

public void removeArpResponderFlow(org.opendaylight.yangtools.yang.common.Uint64 dpId,
                                   int lportTag,
                                   java.lang.String ifName,
                                   java.lang.String gatewayIp,
                                   org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid subnetUuid)

Remove ARP Responder flow when VM interface is removed, by invoking ELan RPC service.

Parameters:: dpId - dpn Id on which ARP responder flow to be removed; lportTag - lport tag of the interface; ifName - interface to which ARP responder flow to be removed; gatewayIp - subnet gateway ip; subnetUuid - subnet Id of the interface

getGatewayMacAddressForInterface

public com.google.common.base.Optional<java.lang.String> getGatewayMacAddressForInterface(VpnPortipToPort gwPort,
                                                                                          java.lang.String ifName)

Get Mac address from given gateway port and interface name.

Parameters:: gwPort - gateway port; ifName - interface for which gateway to be retrieved
Returns:: mac address if present else optional absent value

Class ArpResponderHandler