ONOS-4076 - Virtual Network CLI commands and bug fixes in
DistributedVirtualNetworkStore.

Change-Id: I7bf67527bccb598385f15ad70091e3f8458d35d3
diff --git a/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkManagerTest.java b/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkManagerTest.java
index 8976a7e..f2ce5c4 100644
--- a/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkManagerTest.java
+++ b/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkManagerTest.java
@@ -146,17 +146,30 @@
         assertNotNull("The virtual network set should not be null", virtualNetworks);
         assertEquals("The virtual network set size did not match.", 2, virtualNetworks.size());
 
+        int remaining = virtualNetworks.size();
         for (VirtualNetwork virtualNetwork : virtualNetworks) {
             manager.removeVirtualNetwork(virtualNetwork.id());
+            assertEquals("The expected virtual network size does not match",
+                         --remaining, manager.getVirtualNetworks(TenantId.tenantId(tenantIdValue1)).size());
             // attempt to remove the same virtual network again.
             manager.removeVirtualNetwork(virtualNetwork.id());
+            assertEquals("The expected virtual network size does not match",
+                         remaining, manager.getVirtualNetworks(TenantId.tenantId(tenantIdValue1)).size());
         }
         virtualNetworks = manager.getVirtualNetworks(TenantId.tenantId(tenantIdValue1));
         assertTrue("The virtual network set should be empty.", virtualNetworks.isEmpty());
 
+        // Create/remove a virtual network.
+        VirtualNetwork virtualNetwork = manager.createVirtualNetwork(TenantId.tenantId(tenantIdValue1));
+        manager.removeVirtualNetwork(virtualNetwork.id());
+
+        virtualNetworks = manager.getVirtualNetworks(TenantId.tenantId(tenantIdValue1));
+        assertTrue("The virtual network set should be empty.", virtualNetworks.isEmpty());
+
         // Validate that the events were all received in the correct order.
         validateEvents(VirtualNetworkEvent.Type.TENANT_REGISTERED, VirtualNetworkEvent.Type.NETWORK_ADDED,
                        VirtualNetworkEvent.Type.NETWORK_ADDED, VirtualNetworkEvent.Type.NETWORK_REMOVED,
+                       VirtualNetworkEvent.Type.NETWORK_REMOVED, VirtualNetworkEvent.Type.NETWORK_ADDED,
                        VirtualNetworkEvent.Type.NETWORK_REMOVED);
     }
 
@@ -209,6 +222,13 @@
         virtualDevices1 = manager.getVirtualDevices(virtualNetwork1.id());
         assertTrue("The virtual device set should be empty.", virtualDevices1.isEmpty());
 
+        // Add/remove the virtual device again.
+        VirtualDevice virtualDevice = manager.createVirtualDevice(virtualNetwork1.id(),
+                                                                  DeviceId.deviceId(deviceIdValue1));
+        manager.removeVirtualDevice(virtualDevice.networkId(), virtualDevice.id());
+        virtualDevices1 = manager.getVirtualDevices(virtualNetwork1.id());
+        assertTrue("The virtual device set should be empty.", virtualDevices1.isEmpty());
+
         // Validate that the events were all received in the correct order.
         validateEvents(VirtualNetworkEvent.Type.TENANT_REGISTERED, VirtualNetworkEvent.Type.NETWORK_ADDED,
                        VirtualNetworkEvent.Type.NETWORK_ADDED);
@@ -241,6 +261,12 @@
         }
         virtualLinks = manager.getVirtualLinks(virtualNetwork1.id());
         assertTrue("The virtual link set should be empty.", virtualLinks.isEmpty());
+
+        // Add/remove the virtual link again.
+        VirtualLink virtualLink = manager.createVirtualLink(virtualNetwork1.id(), src, dst, TunnelId.valueOf(0));
+        manager.removeVirtualLink(virtualLink.networkId(), virtualLink.src(), virtualLink.dst());
+        virtualLinks = manager.getVirtualLinks(virtualNetwork1.id());
+        assertTrue("The virtual link set should be empty.", virtualLinks.isEmpty());
     }
 
     /**
@@ -250,19 +276,18 @@
     public void testAddRemoveVirtualPort() {
         manager.registerTenantId(TenantId.tenantId(tenantIdValue1));
         VirtualNetwork virtualNetwork1 = manager.createVirtualNetwork(TenantId.tenantId(tenantIdValue1));
-        VirtualDevice srcVirtualDevice =
+        VirtualDevice virtualDevice =
                 manager.createVirtualDevice(virtualNetwork1.id(), DeviceId.deviceId(deviceIdValue1));
-        VirtualDevice dstVirtualDevice =
-                manager.createVirtualDevice(virtualNetwork1.id(), DeviceId.deviceId(deviceIdValue2));
-        Port port = new DefaultPort(srcVirtualDevice, PortNumber.portNumber(1), true);
+        Port port = new DefaultPort(virtualDevice, PortNumber.portNumber(1), true);
 
-        manager.createVirtualPort(virtualNetwork1.id(), srcVirtualDevice.id(), PortNumber.portNumber(1), port);
-        manager.createVirtualPort(virtualNetwork1.id(), dstVirtualDevice.id(), PortNumber.portNumber(1), port);
+        manager.createVirtualPort(virtualNetwork1.id(), virtualDevice.id(), PortNumber.portNumber(1), port);
+        manager.createVirtualPort(virtualNetwork1.id(), virtualDevice.id(), PortNumber.portNumber(2), port);
 
-        Set<VirtualPort> virtualPorts = manager.getVirtualPorts(virtualNetwork1.id(), srcVirtualDevice.id());
+        Set<VirtualPort> virtualPorts = manager.getVirtualPorts(virtualNetwork1.id(), virtualDevice.id());
         assertNotNull("The virtual port set should not be null", virtualPorts);
         assertEquals("The virtual port set size did not match.", 2, virtualPorts.size());
 
+
         for (VirtualPort virtualPort : virtualPorts) {
             manager.removeVirtualPort(virtualNetwork1.id(),
                                       (DeviceId) virtualPort.element().id(), virtualPort.number());
@@ -270,7 +295,14 @@
             manager.removeVirtualPort(virtualNetwork1.id(),
                                       (DeviceId) virtualPort.element().id(), virtualPort.number());
         }
-        virtualPorts = manager.getVirtualPorts(virtualNetwork1.id(), srcVirtualDevice.id());
+        virtualPorts = manager.getVirtualPorts(virtualNetwork1.id(), virtualDevice.id());
+        assertTrue("The virtual port set should be empty.", virtualPorts.isEmpty());
+
+        // Add/remove the virtual port again.
+        VirtualPort virtualPort = manager.createVirtualPort(virtualNetwork1.id(), virtualDevice.id(),
+                                                            PortNumber.portNumber(1), port);
+        manager.removeVirtualPort(virtualNetwork1.id(), (DeviceId) virtualPort.element().id(), virtualPort.number());
+        virtualPorts = manager.getVirtualPorts(virtualNetwork1.id(), virtualDevice.id());
         assertTrue("The virtual port set should be empty.", virtualPorts.isEmpty());
     }
 
@@ -306,6 +338,9 @@
 
     }
 
+    /**
+     * Core service test class.
+     */
     private class TestCoreService extends CoreServiceAdapter {
 
         @Override
diff --git a/incubator/store/src/main/java/org/onosproject/incubator/store/virtual/impl/DistributedVirtualNetworkStore.java b/incubator/store/src/main/java/org/onosproject/incubator/store/virtual/impl/DistributedVirtualNetworkStore.java
index 65cee11..d4461a4 100644
--- a/incubator/store/src/main/java/org/onosproject/incubator/store/virtual/impl/DistributedVirtualNetworkStore.java
+++ b/incubator/store/src/main/java/org/onosproject/incubator/store/virtual/impl/DistributedVirtualNetworkStore.java
@@ -42,6 +42,8 @@
 import org.onosproject.incubator.net.virtual.VirtualNetworkStoreDelegate;
 import org.onosproject.incubator.net.virtual.VirtualPort;
 import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultDevice;
+import org.onosproject.net.DefaultPort;
 import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.Port;
@@ -123,11 +125,18 @@
                            .register(TenantId.class)
                            .register(NetworkId.class).register(DeviceId.class)
                            .register(VirtualNetwork.class)
+                           .register(DefaultVirtualNetwork.class)
                            .register(VirtualDevice.class)
+                           .register(DefaultVirtualDevice.class)
                            .register(VirtualLink.class)
+                           .register(DefaultVirtualLink.class)
                            .register(VirtualPort.class)
+                           .register(DefaultVirtualPort.class)
                            .register(DeviceId.class)
                            .register(Device.class)
+                           .register(TunnelId.class)
+                           .register(DefaultDevice.class)
+                           .register(DefaultPort.class)
                            .nextId(KryoNamespaces.BEGIN_USER_CUSTOM_ID).build());
 
     /**
@@ -233,12 +242,14 @@
         VirtualNetwork virtualNetwork = new DefaultVirtualNetwork(genNetworkId(), tenantId);
         //TODO update both maps in one transaction.
         networkIdVirtualNetworkMap.put(virtualNetwork.id(), virtualNetwork);
-        Set<NetworkId> virtualNetworkSet = tenantIdNetworkIdSetMap.get(tenantId);
-        if (virtualNetworkSet == null) {
-            virtualNetworkSet = new HashSet<>();
+
+        Set<NetworkId> networkIdSet = tenantIdNetworkIdSetMap.get(tenantId);
+        if (networkIdSet == null) {
+            networkIdSet = new HashSet<>();
         }
-        virtualNetworkSet.add(virtualNetwork.id());
-        tenantIdNetworkIdSetMap.put(tenantId, virtualNetworkSet);
+        networkIdSet.add(virtualNetwork.id());
+        tenantIdNetworkIdSetMap.put(tenantId, networkIdSet);
+
         return virtualNetwork;
     }
 
@@ -256,24 +267,26 @@
     public void removeNetwork(NetworkId networkId) {
         // Make sure that the virtual network exists before attempting to remove it.
         if (networkExists(networkId)) {
-            VirtualNetwork virtualNetwork = networkIdVirtualNetworkMap.get(networkId);
+            //TODO update both maps in one transaction.
+
+            VirtualNetwork virtualNetwork = networkIdVirtualNetworkMap.remove(networkId);
             if (virtualNetwork == null) {
                 return;
             }
-            //TODO update both maps in one transaction.
             TenantId tenantId = virtualNetwork.tenantId();
-            networkIdVirtualNetworkMap.compute(networkId, (id, existingVirtualNetwork) -> null);
 
+            Set<NetworkId> networkIdSet = new HashSet<>();
+            tenantIdNetworkIdSetMap.get(tenantId).forEach(networkId1 -> {
+                if (networkId1.id().equals(networkId.id())) {
+                    networkIdSet.add(networkId1);
+                }
+            });
 
-            Set<NetworkId> virtualNetworkSet = tenantIdNetworkIdSetMap.get(tenantId);
             tenantIdNetworkIdSetMap.compute(virtualNetwork.tenantId(), (id, existingNetworkIds) -> {
                 if (existingNetworkIds == null || existingNetworkIds.isEmpty()) {
-                    return ImmutableSet.of();
+                    return new HashSet<NetworkId>();
                 } else {
-                    return ImmutableSet.<NetworkId>builder()
-                            .addAll(Sets.difference(existingNetworkIds,
-                                                    ImmutableSet.copyOf(virtualNetworkSet)))
-                            .build();
+                    return new HashSet<NetworkId>(Sets.difference(existingNetworkIds, networkIdSet));
                 }
             });
         }
@@ -308,22 +321,24 @@
     public void removeDevice(NetworkId networkId, DeviceId deviceId) {
         checkState(networkExists(networkId), "The network has not been added.");
         //TODO update both maps in one transaction.
-        Set<DeviceId> deviceIdSet = networkIdDeviceIdSetMap.get(networkId);
+
+        Set<DeviceId> deviceIdSet = new HashSet<>();
+        networkIdDeviceIdSetMap.get(networkId).forEach(deviceId1 -> {
+            if (deviceId1.equals(deviceId)) {
+                deviceIdSet.add(deviceId1);
+            }
+        });
+
         if (deviceIdSet != null) {
             networkIdDeviceIdSetMap.compute(networkId, (id, existingDeviceIds) -> {
                 if (existingDeviceIds == null || existingDeviceIds.isEmpty()) {
-                    return ImmutableSet.of();
+                    return new HashSet<DeviceId>();
                 } else {
-                    return ImmutableSet.<DeviceId>builder()
-                            .addAll(Sets.difference(existingDeviceIds,
-                                                    ImmutableSet.copyOf(deviceIdSet)))
-                            .build();
+                    return new HashSet<DeviceId>(Sets.difference(existingDeviceIds, deviceIdSet));
                 }
             });
 
-            deviceIdVirtualDeviceMap.compute(deviceId, (id, existingVirtualDevice) -> null);
-
-            log.info("The deviceIdVirtualDeviceMap size is: " + getDevices(networkId));
+            deviceIdVirtualDeviceMap.remove(deviceId);
         }
     }
 
@@ -343,16 +358,20 @@
     @Override
     public void removeLink(NetworkId networkId, ConnectPoint src, ConnectPoint dst) {
         checkState(networkExists(networkId), "The network has not been added.");
-        Set<VirtualLink> virtualLinkSet = networkIdVirtualLinkSetMap.get(networkId);
+
+        Set<VirtualLink> virtualLinkSet = new HashSet<>();
+        networkIdVirtualLinkSetMap.get(networkId).forEach(link -> {
+            if (link.src().equals(src) && link.dst().equals(dst)) {
+                virtualLinkSet.add(link);
+            }
+        });
+
         if (virtualLinkSet != null) {
             networkIdVirtualLinkSetMap.compute(networkId, (id, existingVirtualLinks) -> {
                 if (existingVirtualLinks == null || existingVirtualLinks.isEmpty()) {
-                    return ImmutableSet.of();
+                    return new HashSet<VirtualLink>();
                 } else {
-                    return ImmutableSet.<VirtualLink>builder()
-                            .addAll(Sets.difference(existingVirtualLinks,
-                                                    ImmutableSet.copyOf(virtualLinkSet)))
-                            .build();
+                    return new HashSet<VirtualLink>(Sets.difference(existingVirtualLinks, virtualLinkSet));
                 }
             });
         }
@@ -376,16 +395,20 @@
     @Override
     public void removePort(NetworkId networkId, DeviceId deviceId, PortNumber portNumber) {
         checkState(networkExists(networkId), "The network has not been added.");
-        Set<VirtualPort> virtualPortSet = networkIdVirtualPortSetMap.get(networkId);
+
+        Set<VirtualPort> virtualPortSet = new HashSet<>();
+        networkIdVirtualPortSetMap.get(networkId).forEach(port -> {
+            if (port.element().id().equals(deviceId) && port.number().equals(portNumber)) {
+                virtualPortSet.add(port);
+            }
+        });
+
         if (virtualPortSet != null) {
             networkIdVirtualPortSetMap.compute(networkId, (id, existingVirtualPorts) -> {
                 if (existingVirtualPorts == null || existingVirtualPorts.isEmpty()) {
-                    return ImmutableSet.of();
+                    return new HashSet<VirtualPort>();
                 } else {
-                    return ImmutableSet.<VirtualPort>builder()
-                            .addAll(Sets.difference(existingVirtualPorts,
-                                                    ImmutableSet.copyOf(virtualPortSet)))
-                            .build();
+                    return new HashSet<VirtualPort>(Sets.difference(existingVirtualPorts, virtualPortSet));
                 }
             });
         }
@@ -415,17 +438,28 @@
     @Override
     public Set<VirtualLink> getLinks(NetworkId networkId) {
         checkState(networkExists(networkId), "The network has not been added.");
-        Set<VirtualLink> virtualLinkSet = new HashSet<>();
-        virtualLinkSet.addAll(networkIdVirtualLinkSetMap.get(networkId));
+        Set<VirtualLink> virtualLinkSet = networkIdVirtualLinkSetMap.get(networkId);
+        if (virtualLinkSet == null) {
+            virtualLinkSet = new HashSet<>();
+        }
         return ImmutableSet.copyOf(virtualLinkSet);
     }
 
     @Override
     public Set<VirtualPort> getPorts(NetworkId networkId, DeviceId deviceId) {
         checkState(networkExists(networkId), "The network has not been added.");
-        Set<VirtualPort> virtualPortSet = new HashSet<>();
-        virtualPortSet.addAll(networkIdVirtualPortSetMap.get(networkId));
-        return ImmutableSet.copyOf(virtualPortSet);
+        Set<VirtualPort> virtualPortSet = networkIdVirtualPortSetMap.get(networkId);
+        if (virtualPortSet == null) {
+            virtualPortSet = new HashSet<>();
+        }
+
+        Set<VirtualPort> portSet = new HashSet<>();
+        virtualPortSet.forEach(virtualPort -> {
+            if (virtualPort.element().id().equals(deviceId)) {
+                portSet.add(virtualPort);
+            }
+        });
+        return ImmutableSet.copyOf(portSet);
     }
 
     /**