[ONOS-6060] Merge scalablegateway app to openstacknode app

Change-Id: I8e152a943f575c2fc0305ae572b5e0150a699d30
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingArpHandler.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingArpHandler.java
index 03810c3..f99d2ae 100644
--- a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingArpHandler.java
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingArpHandler.java
@@ -33,8 +33,8 @@
 import org.onosproject.net.packet.PacketProcessor;
 import org.onosproject.net.packet.PacketService;
 import org.onosproject.openstacknetworking.api.OpenstackNetworkService;
-import org.onosproject.scalablegateway.api.ScalableGatewayService;
 import org.onosproject.openstacknetworking.api.Constants;
+import org.onosproject.openstacknode.OpenstackNodeService;
 import org.slf4j.Logger;
 
 import java.nio.ByteBuffer;
@@ -60,10 +60,10 @@
     protected PacketService packetService;
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected ScalableGatewayService gatewayService;
+    protected OpenstackNetworkService osNetworkService;
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected OpenstackNetworkService osNetworkService;
+    protected OpenstackNodeService osNodeService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
             groupedThreads(this.getClass().getSimpleName(), "event-handler", log));
@@ -123,7 +123,7 @@
         public void process(PacketContext context) {
             if (context.isHandled()) {
                 return;
-            } else if (!gatewayService.getGatewayDeviceIds().contains(
+            } else if (!osNodeService.gatewayDeviceIds().contains(
                     context.inPacket().receivedFrom().deviceId())) {
                 // return if the packet is not from gateway nodes
                 return;
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingFloatingIpHandler.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingFloatingIpHandler.java
index 8594aea..dcb6555 100644
--- a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingFloatingIpHandler.java
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingFloatingIpHandler.java
@@ -48,7 +48,6 @@
 import org.onosproject.openstacknode.OpenstackNodeEvent;
 import org.onosproject.openstacknode.OpenstackNodeListener;
 import org.onosproject.openstacknode.OpenstackNodeService;
-import org.onosproject.scalablegateway.api.ScalableGatewayService;
 import org.openstack4j.model.network.NetFloatingIP;
 import org.openstack4j.model.network.Network;
 import org.openstack4j.model.network.Port;
@@ -102,9 +101,6 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected ScalableGatewayService gatewayService;
-
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
             groupedThreads(this.getClass().getSimpleName(), "event-handler", log));
     private final OpenstackRouterListener floatingIpLisener = new InternalFloatingIpLisener();
@@ -193,7 +189,7 @@
                 .matchIPDst(floating.toIpPrefix())
                 .build();
 
-        gatewayService.getGatewayDeviceIds().forEach(gnodeId -> {
+        osNodeService.gatewayDeviceIds().forEach(gnodeId -> {
             TrafficTreatment externalTreatment = DefaultTrafficTreatment.builder()
                     .setEthSrc(Constants.DEFAULT_GATEWAY_MAC)
                     .setEthDst(instPort.macAddress())
@@ -258,12 +254,12 @@
                 .matchIPSrc(instPort.ipAddress().toIpPrefix())
                 .build();
 
-        gatewayService.getGatewayDeviceIds().forEach(gnodeId -> {
+        osNodeService.gatewayDeviceIds().forEach(gnodeId -> {
             TrafficTreatment treatment = DefaultTrafficTreatment.builder()
                     .setIpSrc(floating.getIp4Address())
                     .setEthSrc(Constants.DEFAULT_GATEWAY_MAC)
                     .setEthDst(Constants.DEFAULT_EXTERNAL_ROUTER_MAC)
-                    .setOutput(gatewayService.getUplinkPort(gnodeId))
+                    .setOutput(osNodeService.externalPort(gnodeId).get())
                     .build();
 
             RulePopulatorUtil.setRule(
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingHandler.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingHandler.java
index 7d722ec..4cace0f 100644
--- a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingHandler.java
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingHandler.java
@@ -49,7 +49,6 @@
 import org.onosproject.openstacknode.OpenstackNodeEvent;
 import org.onosproject.openstacknode.OpenstackNodeListener;
 import org.onosproject.openstacknode.OpenstackNodeService;
-import org.onosproject.scalablegateway.api.ScalableGatewayService;
 import org.openstack4j.model.network.ExternalGateway;
 import org.openstack4j.model.network.Network;
 import org.openstack4j.model.network.Router;
@@ -96,9 +95,6 @@
     protected OpenstackNodeService osNodeService;
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected ScalableGatewayService gatewayService;
-
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected OpenstackNetworkService osNetworkService;
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
@@ -195,14 +191,14 @@
                 .forEach(osNode -> {
                     setRulesToGateway(
                             osNode.intBridge(),
-                            gatewayService.getGatewayGroupId(osNode.intBridge()),
+                            osNodeService.gatewayGroupId(osNode.intBridge()),
                             Long.valueOf(osNet.getProviderSegID()),
                             IpPrefix.valueOf(osSubnet.getCidr()),
                             install);
                 });
 
         // take the first outgoing packet to controller for source NAT
-        gatewayService.getGatewayDeviceIds()
+        osNodeService.gatewayDeviceIds()
                 .forEach(gwDeviceId -> setRulesToController(
                         gwDeviceId,
                         Long.valueOf(osNet.getProviderSegID()),
@@ -225,13 +221,13 @@
                 .filter(osNode -> osNode.type() == COMPUTE)
                 .forEach(osNode -> setRulesToGatewayWithDstIp(
                         osNode.intBridge(),
-                        gatewayService.getGatewayGroupId(osNode.intBridge()),
+                        osNodeService.gatewayGroupId(osNode.intBridge()),
                         Long.valueOf(network.getProviderSegID()),
                         IpAddress.valueOf(osSubnet.getGateway()),
                         install));
 
         IpAddress gatewayIp = IpAddress.valueOf(osSubnet.getGateway());
-        gatewayService.getGatewayDeviceIds()
+        osNodeService.gatewayDeviceIds()
                 .forEach(gwDeviceId -> setGatewayIcmpRule(
                         gatewayIp,
                         gwDeviceId,
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingIcmpHandler.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingIcmpHandler.java
index 3f5adee..ea716db 100644
--- a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingIcmpHandler.java
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingIcmpHandler.java
@@ -51,8 +51,6 @@
 import org.onosproject.openstacknode.OpenstackNodeEvent;
 import org.onosproject.openstacknode.OpenstackNodeListener;
 import org.onosproject.openstacknode.OpenstackNodeService;
-import org.onosproject.scalablegateway.api.GatewayNode;
-import org.onosproject.scalablegateway.api.ScalableGatewayService;
 import org.openstack4j.model.network.ExternalGateway;
 import org.openstack4j.model.network.IP;
 import org.openstack4j.model.network.Port;
@@ -100,9 +98,6 @@
     protected MastershipService mastershipService;
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected ScalableGatewayService gatewayService;
-
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected OpenstackNodeService osNodeService;
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
@@ -147,7 +142,7 @@
                 .matchIPProtocol(IPv4.PROTOCOL_ICMP)
                 .build();
 
-        gatewayService.getGatewayDeviceIds().forEach(gateway -> {
+        osNodeService.gatewayDeviceIds().forEach(gateway -> {
             packetService.requestPackets(
                     icmpSelector,
                     PacketPriority.CONTROL,
@@ -335,7 +330,7 @@
                 .setPayload(ipPacket);
 
         TrafficTreatment treatment = DefaultTrafficTreatment.builder()
-                .setOutput(gatewayService.getUplinkPort(srcDevice))
+                .setOutput(osNodeService.externalPort(srcDevice).get())
                 .build();
 
         OutboundPacket packet = new DefaultOutboundPacket(
@@ -386,7 +381,7 @@
         public void process(PacketContext context) {
             if (context.isHandled()) {
                 return;
-            } else if (!gatewayService.getGatewayDeviceIds().contains(
+            } else if (!osNodeService.gatewayDeviceIds().contains(
                     context.inPacket().receivedFrom().deviceId())) {
                 // return if the packet is not from gateway nodes
                 return;
@@ -423,14 +418,6 @@
                     if (osNode.type() == GATEWAY) {
                         log.info("GATEWAY node {} detected", osNode.hostname());
                         eventExecutor.execute(() -> {
-                            // TODO add events to scalable gateway so that we
-                            // don't need to add gateway here and there
-                            GatewayNode gnode = GatewayNode.builder()
-                                    .gatewayDeviceId(osNode.intBridge())
-                                    .dataIpAddress(osNode.dataIp().get().getIp4Address())
-                                    .uplinkIntf(osNode.externalPortName().get())
-                                    .build();
-                            gatewayService.addGatewayNode(gnode);
                             requestPacket(appId);
                         });
                     }
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingSnatHandler.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingSnatHandler.java
index a1a1899..eb08cc3 100644
--- a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingSnatHandler.java
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingSnatHandler.java
@@ -50,7 +50,6 @@
 import org.onosproject.openstacknetworking.api.OpenstackRouterService;
 import org.onosproject.openstacknetworking.api.OpenstackNetworkService;
 import org.onosproject.openstacknode.OpenstackNodeService;
-import org.onosproject.scalablegateway.api.ScalableGatewayService;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.DistributedSet;
@@ -118,9 +117,6 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected OpenstackRouterService osRouterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected ScalableGatewayService gatewayService;
-
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
             groupedThreads(this.getClass().getSimpleName(), "event-handler", log));
     private final InternalPacketProcessor packetProcessor = new InternalPacketProcessor();
@@ -311,7 +307,7 @@
                 break;
         }
 
-        gatewayService.getGatewayDeviceIds().forEach(deviceId -> {
+        osNodeService.gatewayDeviceIds().forEach(deviceId -> {
             DeviceId srcDeviceId = srcInstPort.deviceId();
             TrafficTreatment.Builder tmpBuilder =
                     DefaultTrafficTreatment.builder(tBuilder.build());
@@ -367,10 +363,10 @@
         }
 
         tBuilder.setIpSrc(externalIp);
-        gatewayService.getGatewayDeviceIds().forEach(deviceId -> {
+        osNodeService.gatewayDeviceIds().forEach(deviceId -> {
             TrafficTreatment.Builder tmpBuilder =
                     DefaultTrafficTreatment.builder(tBuilder.build());
-            tmpBuilder.setOutput(gatewayService.getUplinkPort(deviceId));
+            tmpBuilder.setOutput(osNodeService.externalPort(deviceId).get());
             ForwardingObjective fo = DefaultForwardingObjective.builder()
                     .withSelector(sBuilder.build())
                     .withTreatment(tmpBuilder.build())
@@ -415,7 +411,7 @@
         ethPacketIn.setPayload(iPacket);
 
         TrafficTreatment treatment = DefaultTrafficTreatment.builder()
-                .setOutput(gatewayService.getUplinkPort(srcDevice))
+                .setOutput(osNodeService.externalPort(srcDevice).get())
                 .build();
         ethPacketIn.resetChecksum();
         packetService.emit(new DefaultOutboundPacket(
@@ -459,7 +455,7 @@
         public void process(PacketContext context) {
             if (context.isHandled()) {
                 return;
-            } else if (!gatewayService.getGatewayDeviceIds().contains(
+            } else if (!osNodeService.gatewayDeviceIds().contains(
                     context.inPacket().receivedFrom().deviceId())) {
                 // return if the packet is not from gateway nodes
                 return;