Remove deprecated "sid" parameter in UI events.

Change-Id: Ib39fe563109068e7a97df809e9dd1f9f7506fbc6
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java
index 6cb06fb..43b871b 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java
@@ -133,20 +133,27 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             String action = string(payload, "action");
             String name = string(payload, "name");
+
             if (action != null && name != null) {
                 ApplicationAdminService service = get(ApplicationAdminService.class);
                 ApplicationId appId = service.getId(name);
-                if (action.equals("activate")) {
-                    service.activate(appId);
-                } else if (action.equals("deactivate")) {
-                    service.deactivate(appId);
-                } else if (action.equals("uninstall")) {
-                    service.uninstall(appId);
+                switch (action) {
+                    case "activate":
+                        service.activate(appId);
+                        break;
+                    case "deactivate":
+                        service.deactivate(appId);
+                        break;
+                    case "uninstall":
+                        service.uninstall(appId);
+                        break;
+                    default:
+                        break;
                 }
-                chain(APP_DATA_REQ, sid, payload);
+                chain(APP_DATA_REQ, payload);
             }
         }
     }
@@ -158,7 +165,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             String id = string(payload, ID);
             ApplicationService as = get(ApplicationService.class);
 
@@ -204,7 +211,7 @@
 
             ObjectNode rootNode = objectNode();
             rootNode.set(DETAILS, data);
-            sendMessage(APP_DETAILS_RESP, 0, rootNode);
+            sendMessage(APP_DETAILS_RESP, rootNode);
         }
 
     }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/ClusterViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/ClusterViewMessageHandler.java
index dbc7a83..3e3799b 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/ClusterViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/ClusterViewMessageHandler.java
@@ -168,7 +168,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
 
             String id = string(payload, ID);
             ClusterService cs = get(ClusterService.class);
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
index 56ab5ad..a04f616 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
@@ -41,7 +41,6 @@
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.Collections;
 import java.util.List;
 import java.util.Set;
 
@@ -181,7 +180,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             String id = string(payload, ID, ZERO_URI);
 
             DeviceId deviceId = deviceId(id);
@@ -206,7 +205,7 @@
             ArrayNode ports = arrayNode();
 
             List<Port> portList = new ArrayList<>(service.getPorts(deviceId));
-            Collections.sort(portList, (p1, p2) -> {
+            portList.sort((p1, p2) -> {
                 long delta = p1.number().toLong() - p2.number().toLong();
                 return delta == 0 ? 0 : (delta < 0 ? -1 : +1);
             });
@@ -218,7 +217,7 @@
 
             ObjectNode rootNode = objectNode();
             rootNode.set(DETAILS, data);
-            sendMessage(DEV_DETAILS_RESP, 0, rootNode);
+            sendMessage(DEV_DETAILS_RESP, rootNode);
         }
 
         private ObjectNode portData(Port p, DeviceId id) {
@@ -262,7 +261,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             DeviceId deviceId = deviceId(string(payload, ID, ZERO_URI));
             String name = emptyToNull(string(payload, NAME, null));
             log.debug("Name change request: {} -- '{}'", deviceId, name);
@@ -275,7 +274,7 @@
             // means that the friendly name should be unset.
             cfg.name(name);
             cfg.apply();
-            sendMessage(DEV_NAME_CHANGE_RESP, 0, payload);
+            sendMessage(DEV_NAME_CHANGE_RESP, payload);
         }
     }
 }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java
index 18c3637..46f9f9e 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java
@@ -132,17 +132,17 @@
 
         private void populateRow(TableModel.Row row, FlowEntry flow) {
             row.cell(ID, flow.id().value())
-                .cell(APP_ID, flow.appId())
-                .cell(GROUP_ID, flow.groupId().id())
-                .cell(TABLE_ID, flow.tableId())
-                .cell(PRIORITY, flow.priority())
-                .cell(TIMEOUT, flow.timeout())
-                .cell(PERMANENT, flow.isPermanent())
-                .cell(STATE, flow.state())
-                .cell(PACKETS, flow.packets())
-                .cell(BYTES, flow.bytes())
-                .cell(SELECTOR, flow)
-                .cell(TREATMENT, flow);
+                    .cell(APP_ID, flow.appId())
+                    .cell(GROUP_ID, flow.groupId().id())
+                    .cell(TABLE_ID, flow.tableId())
+                    .cell(PRIORITY, flow.priority())
+                    .cell(TIMEOUT, flow.timeout())
+                    .cell(PERMANENT, flow.isPermanent())
+                    .cell(STATE, flow.state())
+                    .cell(PACKETS, flow.packets())
+                    .cell(BYTES, flow.bytes())
+                    .cell(SELECTOR, flow)
+                    .cell(TREATMENT, flow);
         }
 
         private final class SelectorFormatter implements CellFormatter {
@@ -258,7 +258,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
 
             String flowId = string(payload, FLOW_ID);
             String appId = string(payload, APP_ID);
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/GroupViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/GroupViewMessageHandler.java
index f5ca81f..95fdd53 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/GroupViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/GroupViewMessageHandler.java
@@ -127,12 +127,12 @@
 
         private void populateRow(TableModel.Row row, Group g) {
             row.cell(ID, g.id().id())
-                .cell(APP_ID, g.appId().name())
-                .cell(STATE, g.state())
-                .cell(TYPE, g.type())
-                .cell(PACKETS, g.packets())
-                .cell(BYTES, g.bytes())
-                .cell(BUCKETS, g.buckets().buckets());
+                    .cell(APP_ID, g.appId().name())
+                    .cell(STATE, g.state())
+                    .cell(TYPE, g.type())
+                    .cell(PACKETS, g.packets())
+                    .cell(BYTES, g.bytes())
+                    .cell(BUCKETS, g.buckets().buckets());
         }
 
         private final class BucketFormatter implements CellFormatter {
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/IntentViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/IntentViewMessageHandler.java
index 1b97592..0d1c062 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/IntentViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/IntentViewMessageHandler.java
@@ -112,12 +112,12 @@
 
         private void populateRow(TableModel.Row row, Intent intent, IntentService is) {
             row.cell(APP_ID, intent.appId())
-                .cell(KEY, intent.key())
-                .cell(TYPE, intent.getClass().getSimpleName())
-                .cell(PRIORITY, intent.priority())
-                .cell(STATE, is.getIntentState(intent.key()))
-                .cell(RESOURCES, intent)
-                .cell(DETAILS, intent);
+                    .cell(KEY, intent.key())
+                    .cell(TYPE, intent.getClass().getSimpleName())
+                    .cell(PRIORITY, intent.priority())
+                    .cell(STATE, is.getIntentState(intent.key()))
+                    .cell(RESOURCES, intent)
+                    .cell(DETAILS, intent);
         }
 
         private final class ResourcesFormatter implements CellFormatter {
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/MapSelectorMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/MapSelectorMessageHandler.java
index fdb2467..621bf84 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/MapSelectorMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/MapSelectorMessageHandler.java
@@ -20,10 +20,10 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.collect.ImmutableSet;
 import org.onosproject.ui.RequestHandler;
-import org.onosproject.ui.UiMessageHandler;
 import org.onosproject.ui.UiExtensionService;
-import org.onosproject.ui.UiTopoMapFactory;
+import org.onosproject.ui.UiMessageHandler;
 import org.onosproject.ui.UiTopoMap;
+import org.onosproject.ui.UiTopoMapFactory;
 
 import java.util.Collection;
 import java.util.List;
@@ -56,8 +56,8 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
-            sendMessage(MAP_LIST_RESP, 0, mapsJson());
+        public void process(ObjectNode payload) {
+            sendMessage(MAP_LIST_RESP, mapsJson());
         }
     }
 
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/SettingsViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/SettingsViewMessageHandler.java
index 57e380f..632f721 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/SettingsViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/SettingsViewMessageHandler.java
@@ -79,12 +79,6 @@
         }
 
         @Override
-        protected TableModel createTableModel() {
-            TableModel tm = super.createTableModel();
-            return tm;
-        }
-
-        @Override
         protected void populateTable(TableModel tm, ObjectNode payload) {
             ComponentConfigService ccs = get(ComponentConfigService.class);
             for (String component : ccs.getComponentNames()) {
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
index b6098bb..609b775 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
@@ -67,7 +67,6 @@
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashSet;
 import java.util.List;
@@ -159,7 +158,7 @@
     private static final long SUMMARY_PERIOD = 30000;
 
     private static final Comparator<? super ControllerNode> NODE_COMPARATOR =
-            (o1, o2) -> o1.id().toString().compareTo(o2.id().toString());
+            Comparator.comparing(o -> o.id().toString());
 
 
     private final Timer timer = new Timer("onos-topology-view");
@@ -255,7 +254,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             addListeners();
             sendAllInstances(null);
             sendAllDevices();
@@ -271,7 +270,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             String deact = string(payload, DEACTIVATE);
             String act = string(payload, ACTIVATE);
             overlayCache.switchOverlay(deact, act);
@@ -284,7 +283,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             removeListeners();
             stopSummaryMonitoring();
             traffic.stopMonitoring();
@@ -297,8 +296,8 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
-            requestSummary(sid);
+        public void process(ObjectNode payload) {
+            requestSummary();
             startSummaryMonitoring();
         }
     }
@@ -309,7 +308,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             stopSummaryMonitoring();
         }
     }
@@ -320,12 +319,12 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             ObjectNode root = objectNode();
             ArrayNode names = arrayNode();
             get(SpriteService.class).getNames().forEach(names::add);
             root.set(NAMES, names);
-            sendMessage(SPRITE_LIST_RESPONSE, sid, root);
+            sendMessage(SPRITE_LIST_RESPONSE, root);
         }
     }
 
@@ -335,11 +334,11 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             String name = string(payload, NAME);
             ObjectNode root = objectNode();
             root.set(DATA, get(SpriteService.class).get(name));
-            sendMessage(SPRITE_DATA_RESPONSE, sid, root);
+            sendMessage(SPRITE_DATA_RESPONSE, root);
         }
     }
 
@@ -349,22 +348,22 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             String type = string(payload, CLASS, UNKNOWN);
             String id = string(payload, ID);
             PropertyPanel pp = null;
 
             if (type.equals(DEVICE)) {
                 DeviceId did = deviceId(id);
-                pp = deviceDetails(did, sid);
+                pp = deviceDetails(did);
                 overlayCache.currentOverlay().modifyDeviceDetails(pp, did);
             } else if (type.equals(HOST)) {
                 HostId hid = hostId(id);
-                pp = hostDetails(hid, sid);
+                pp = hostDetails(hid);
                 overlayCache.currentOverlay().modifyHostDetails(pp, hid);
             }
 
-            sendMessage(envelope(SHOW_DETAILS, sid, json(pp)));
+            sendMessage(envelope(SHOW_DETAILS, json(pp)));
         }
     }
 
@@ -374,7 +373,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             updateMetaUi(payload);
         }
     }
@@ -385,7 +384,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             directory.get(MastershipAdminService.class).balanceRoles();
         }
     }
@@ -401,7 +400,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             // TODO: add protection against device ids and non-existent hosts.
             HostId one = hostId(string(payload, ONE));
             HostId two = hostId(string(payload, TWO));
@@ -441,7 +440,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             Intent intent = findIntentByPayload(payload);
             if (intent == null) {
                 log.warn("Unable to find intent from payload {}", payload);
@@ -462,7 +461,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             Intent intent = findIntentByPayload(payload);
             if (intent == null) {
                 log.warn("Unable to find intent from payload {}", payload);
@@ -479,7 +478,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             // TODO: add protection against device ids and non-existent hosts.
             Set<HostId> src = getHostIds((ArrayNode) payload.path(SRC));
             HostId dst = hostId(string(payload, DST));
@@ -516,7 +515,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             traffic.monitor(Mode.ALL_FLOW_TRAFFIC);
         }
     }
@@ -527,7 +526,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             traffic.monitor(Mode.ALL_PORT_TRAFFIC);
         }
     }
@@ -538,7 +537,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             NodeSelection nodeSelection =
                     new NodeSelection(payload, deviceService, hostService, linkService);
             traffic.monitor(Mode.DEV_LINK_FLOWS, nodeSelection);
@@ -551,7 +550,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             NodeSelection nodeSelection =
                     new NodeSelection(payload, deviceService, hostService, linkService);
             traffic.monitor(Mode.RELATED_INTENTS, nodeSelection);
@@ -564,7 +563,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             traffic.selectNextIntent();
         }
     }
@@ -575,7 +574,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             traffic.selectPreviousIntent();
         }
     }
@@ -586,7 +585,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             traffic.monitor(Mode.SELECTED_INTENT);
         }
     }
@@ -597,7 +596,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             Intent intent = findIntentByPayload(payload);
             if (intent == null) {
                 log.warn("Unable to find intent from payload {}", payload);
@@ -614,7 +613,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             traffic.stopMonitoring();
         }
     }
@@ -622,15 +621,15 @@
     //=======================================================================
 
     // Converts highlights to JSON format and sends the message to the client
-    protected void sendHighlights(Highlights highlights) {
+    void sendHighlights(Highlights highlights) {
         sendMessage(highlightsMessage(highlights));
     }
 
     // Subscribes for summary messages.
-    private synchronized void requestSummary(long sid) {
-        PropertyPanel pp = summmaryMessage(sid);
+    private synchronized void requestSummary() {
+        PropertyPanel pp = summmaryMessage();
         overlayCache.currentOverlay().modifySummary(pp);
-        sendMessage(envelope(SHOW_SUMMARY, sid, json(pp)));
+        sendMessage(envelope(SHOW_SUMMARY, json(pp)));
     }
 
 
@@ -642,7 +641,7 @@
     // Sends all controller nodes to the client as node-added messages.
     private void sendAllInstances(String messageType) {
         List<ControllerNode> nodes = new ArrayList<>(clusterService.getNodes());
-        Collections.sort(nodes, NODE_COMPARATOR);
+        nodes.sort(NODE_COMPARATOR);
         for (ControllerNode node : nodes) {
             sendMessage(instanceMessage(new ClusterEvent(INSTANCE_ADDED, node),
                     messageType));
@@ -873,7 +872,7 @@
         public void run() {
             try {
                 if (summaryRunning) {
-                    msgSender.execute(() -> requestSummary(0));
+                    msgSender.execute(() -> requestSummary());
                 }
             } catch (Exception e) {
                 log.warn("Unable to handle summary request due to {}", e.getMessage());
@@ -900,7 +899,7 @@
 
             try {
                 if (summaryRunning) {
-                    msgSender.execute(() -> requestSummary(0));
+                    msgSender.execute(() -> requestSummary());
                 }
             } catch (Exception e) {
                 log.warn("Unable to handle summary request due to {}", e.getMessage());
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandlerBase.java b/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandlerBase.java
index c2c14f2..95c0cf4 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandlerBase.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandlerBase.java
@@ -395,7 +395,7 @@
     // Create models of the data to return, that overlays can adjust / augment
 
     // Returns property panel model for summary response.
-    protected PropertyPanel summmaryMessage(long sid) {
+    protected PropertyPanel summmaryMessage() {
         Topology topology = topologyService.currentTopology();
 
         return new PropertyPanel("ONOS Summary", "node")
@@ -412,7 +412,7 @@
     }
 
     // Returns property panel model for device details response.
-    protected PropertyPanel deviceDetails(DeviceId deviceId, long sid) {
+    protected PropertyPanel deviceDetails(DeviceId deviceId) {
         Device device = deviceService.getDevice(deviceId);
         Annotations annot = device.annotations();
         String name = annot.value(AnnotationKeys.NAME);
@@ -525,7 +525,7 @@
     }
 
     // Returns host details response.
-    protected PropertyPanel hostDetails(HostId hostId, long sid) {
+    protected PropertyPanel hostDetails(HostId hostId) {
         Host host = hostService.getHost(hostId);
         Annotations annot = host.annotations();
         String type = annot.value(AnnotationKeys.TYPE);
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/UserPreferencesMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/UserPreferencesMessageHandler.java
index 3bd3744..44a8ef0 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/UserPreferencesMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/UserPreferencesMessageHandler.java
@@ -46,12 +46,12 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             if (!isNullOrEmpty(connection().userName())) {
                 UiPreferencesService service = get(UiPreferencesService.class);
                 service.setPreference(connection().userName(),
-                                      payload.get(KEY).asText(),
-                                      (ObjectNode) payload.get(VALUE));
+                        payload.get(KEY).asText(),
+                        (ObjectNode) payload.get(VALUE));
             }
         }
     }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/topo/Topo2ViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/topo/Topo2ViewMessageHandler.java
index 4aa6fc9..ea774d9 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/topo/Topo2ViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/topo/Topo2ViewMessageHandler.java
@@ -67,7 +67,6 @@
     private static final String CURRENT_LAYOUT = "topo2CurrentLayout";
     private static final String CURRENT_REGION = "topo2CurrentRegion";
     private static final String PEER_REGIONS = "topo2PeerRegions";
-    private static final String TOPO_START_DONE = "topo2StartDone";
 
 
     private UiTopoSession topoSession;
@@ -122,7 +121,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             // client view is ready to receive data to display; so start up
             // server-side processing, and send over initial state
 
@@ -162,7 +161,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             String rid = string(payload, "rid");
             log.debug("topo2navRegion: rid={}", rid);
 
@@ -185,7 +184,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             // client view has gone away; so shut down server-side processing
             // TODO: implement...
 
@@ -204,7 +203,7 @@
         }
 
         @Override
-        public void process(long sid, ObjectNode payload) {
+        public void process(ObjectNode payload) {
             t2json.updateMeta(payload);
         }
     }