Generalize the methods in ResourceAdminService

Change-Id: Ib78d2ec441651c3215c422ba4b46d726158de4a9
diff --git a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
index 114c4c7..4fb0d7b 100644
--- a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
+++ b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
@@ -15,6 +15,7 @@
  */
 package org.onosproject.net.newresource.impl;
 
+import com.google.common.collect.Lists;
 import org.onosproject.net.Device;
 import org.onosproject.net.Port;
 import org.onosproject.net.OchPort;
@@ -82,39 +83,36 @@
     }
 
     private void registerDeviceResource(Device device) {
-        executor.submit(() -> adminService.registerResources(ResourcePath.ROOT, device.id()));
+        executor.submit(() -> adminService.registerResources(ResourcePath.discrete(device.id())));
     }
 
     private void unregisterDeviceResource(Device device) {
-        executor.submit(() -> adminService.unregisterResources(ResourcePath.ROOT, device.id()));
+        executor.submit(() -> adminService.unregisterResources(ResourcePath.discrete(device.id())));
     }
 
     private void registerPortResource(Device device, Port port) {
-        ResourcePath parent = ResourcePath.discrete(device.id());
-        executor.submit(() -> registerPortResource(device, port, parent));
-    }
-
-    private void registerPortResource(Device device, Port port, ResourcePath parent) {
-        adminService.registerResources(parent, port.number());
         ResourcePath portPath = ResourcePath.discrete(device.id(), port.number());
+        executor.submit(() -> {
+            adminService.registerResources(portPath);
 
-        switch (port.type()) {
-            case OCH:
-                // register ODU TributarySlots against the OCH port
-                registerTributarySlotsResources(((OchPort) port).signalType(), portPath);
-                break;
-            default:
-                break;
-        }
+            switch (port.type()) {
+                case OCH:
+                    // register ODU TributarySlots against the OCH port
+                    registerTributarySlotsResources(((OchPort) port).signalType(), portPath);
+                    break;
+                default:
+                    break;
+            }
+        });
     }
 
     private void registerTributarySlotsResources(OduSignalType oduSignalType, ResourcePath portPath) {
         switch (oduSignalType) {
             case ODU2:
-                adminService.registerResources(portPath, ENTIRE_ODU2_TRIBUTARY_SLOTS);
+                adminService.registerResources(Lists.transform(ENTIRE_ODU2_TRIBUTARY_SLOTS, portPath::child));
                 break;
             case ODU4:
-                adminService.registerResources(portPath, ENTIRE_ODU4_TRIBUTARY_SLOTS);
+                adminService.registerResources(Lists.transform(ENTIRE_ODU4_TRIBUTARY_SLOTS, portPath::child));
                 break;
             default:
                 break;
@@ -122,8 +120,8 @@
     }
 
     private void unregisterPortResource(Device device, Port port) {
-        ResourcePath parent = ResourcePath.discrete(device.id());
-        executor.submit(() -> adminService.unregisterResources(parent, port.number()));
+        ResourcePath resource = ResourcePath.discrete(device.id(), port.number());
+        executor.submit(() -> adminService.unregisterResources(resource));
     }
 
     private static List<TributarySlot> getEntireOdu2TributarySlots() {
diff --git a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceLinkListener.java b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceLinkListener.java
index 68fd661..9d2e06f 100644
--- a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceLinkListener.java
+++ b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceLinkListener.java
@@ -15,6 +15,7 @@
  */
 package org.onosproject.net.newresource.impl;
 
+import com.google.common.collect.Lists;
 import org.onlab.packet.MplsLabel;
 import org.onlab.packet.VlanId;
 import org.onlab.util.ItemNotFoundException;
@@ -85,24 +86,24 @@
         executor.submit(() -> {
             // register the link
             LinkKey linkKey = LinkKey.linkKey(link);
-            adminService.registerResources(ResourcePath.ROOT, linkKey);
+            adminService.registerResources(ResourcePath.discrete(linkKey));
 
             ResourcePath linkPath = ResourcePath.discrete(linkKey);
             // register VLAN IDs against the link
             if (isEnabled(link, this::isVlanEnabled)) {
-                adminService.registerResources(linkPath, ENTIRE_VLAN_IDS);
+                adminService.registerResources(Lists.transform(ENTIRE_VLAN_IDS, linkPath::child));
             }
 
             // register MPLS labels against the link
             if (isEnabled(link, this::isMplsEnabled)) {
-                adminService.registerResources(linkPath, ENTIRE_MPLS_LABELS);
+                adminService.registerResources(Lists.transform(ENTIRE_MPLS_LABELS, linkPath::child));
             }
         });
     }
 
     private void unregisterLinkResource(Link link) {
         LinkKey linkKey = LinkKey.linkKey(link);
-        executor.submit(() -> adminService.unregisterResources(ResourcePath.ROOT, linkKey));
+        executor.submit(() -> adminService.unregisterResources(ResourcePath.discrete(linkKey)));
     }
 
     private boolean isEnabled(Link link, Predicate<ConnectPoint> predicate) {
diff --git a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceManager.java b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceManager.java
index 1c6930b..3014951 100644
--- a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceManager.java
+++ b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceManager.java
@@ -17,7 +17,6 @@
 
 import com.google.common.annotations.Beta;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Lists;
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
@@ -41,7 +40,6 @@
 import java.util.Optional;
 import java.util.stream.Collectors;
 
-import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
 
 /**
@@ -164,23 +162,17 @@
     }
 
     @Override
-    public <T> boolean registerResources(ResourcePath parent, List<T> children) {
-        checkNotNull(parent);
-        checkNotNull(children);
-        checkArgument(!children.isEmpty());
+    public boolean registerResources(List<ResourcePath> resources) {
+        checkNotNull(resources);
 
-        List<ResourcePath> resources = Lists.transform(children, parent::child);
         return store.register(resources);
     }
 
     @Override
-    public <T> boolean unregisterResources(ResourcePath parent, List<T> children) {
-        checkNotNull(parent);
-        checkNotNull(children);
-        checkArgument(!children.isEmpty());
+    public boolean unregisterResources(List<ResourcePath> resources) {
+        checkNotNull(resources);
 
-        List<ResourcePath> resources = Lists.transform(children, parent::child);
-        return store.unregister(resources);
+        return store.register(resources);
     }
 
     private class InternalStoreDelegate implements ResourceStoreDelegate {