Rename: use plural according to the returned type

Change-Id: I7db9ae2fda2f7240d69ad7dbd028ccc0ea8a8fd8

@@ -133,7 +133,7 @@ public interface ResourceService extends ListenerService<ResourceEvent, Resource
      * If the resource is not allocated, the return value is an empty list.
      */
     // TODO: need to change the argument type to ResourceId
-    List<ResourceAllocation> getResourceAllocation(Resource resource);
+    List<ResourceAllocation> getResourceAllocations(Resource resource);
 
     /**
      * Returns allocated resources being as children of the specified parent and being the specified resource type.

@@ -312,7 +312,7 @@ public class OpticalCircuitIntentCompiler implements IntentCompiler<OpticalCircu
         if (ochCP != null) {
             OchPort ochPort = (OchPort) deviceService.getPort(ochCP.deviceId(), ochCP.port());
             Optional<IntentId> intentId =
-                    resourceService.getResourceAllocation(Resource.discrete(ochCP.deviceId(), ochCP.port()))
+                    resourceService.getResourceAllocations(Resource.discrete(ochCP.deviceId(), ochCP.port()))
                             .stream()
                             .map(ResourceAllocation::consumer)
                             .filter(x -> x instanceof IntentId)
@@ -333,7 +333,7 @@ public class OpticalCircuitIntentCompiler implements IntentCompiler<OpticalCircu
             }
 
             Optional<IntentId> intentId =
-                    resourceService.getResourceAllocation(Resource.discrete(oduPort.deviceId(), port.number()))
+                    resourceService.getResourceAllocations(Resource.discrete(oduPort.deviceId(), port.number()))
                             .stream()
                             .map(ResourceAllocation::consumer)
                             .filter(x -> x instanceof IntentId)

@@ -114,7 +114,7 @@ public final class ResourceManager extends AbstractListenerManager<ResourceEvent
     }
 
     @Override
-    public List<ResourceAllocation> getResourceAllocation(Resource resource) {
+    public List<ResourceAllocation> getResourceAllocations(Resource resource) {
         checkNotNull(resource);
 
         List<ResourceConsumer> consumers = store.getConsumers(resource);

@@ -68,7 +68,7 @@ class MockResourceService implements ResourceService {
     }
 
     @Override
-    public List<ResourceAllocation> getResourceAllocation(Resource resource) {
+    public List<ResourceAllocation> getResourceAllocations(Resource resource) {
         return Optional.ofNullable(assignment.get(resource))
                 .map(x -> ImmutableList.of(new ResourceAllocation(resource, x)))
                 .orElse(ImmutableList.of());

@@ -115,13 +115,13 @@ public class ConsistentResourceStore extends AbstractStore<ResourceEvent, Resour
         checkArgument(resource instanceof DiscreteResource || resource instanceof ContinuousResource);
 
         if (resource instanceof DiscreteResource) {
-            return getConsumer((DiscreteResource) resource);
+            return getConsumers((DiscreteResource) resource);
         } else {
-            return getConsumer((ContinuousResource) resource);
+            return getConsumers((ContinuousResource) resource);
         }
     }
 
-    private List<ResourceConsumer> getConsumer(DiscreteResource resource) {
+    private List<ResourceConsumer> getConsumers(DiscreteResource resource) {
         Versioned<ResourceConsumer> consumer = discreteConsumers.get(resource);
         if (consumer == null) {
             return ImmutableList.of();
@@ -130,7 +130,7 @@ public class ConsistentResourceStore extends AbstractStore<ResourceEvent, Resour
         return ImmutableList.of(consumer.value());
     }
 
-    private List<ResourceConsumer> getConsumer(ContinuousResource resource) {
+    private List<ResourceConsumer> getConsumers(ContinuousResource resource) {
         Versioned<ContinuousResourceAllocation> allocations = continuousConsumers.get(resource.id());
         if (allocations == null) {
             return ImmutableList.of();
@@ -337,7 +337,7 @@ public class ConsistentResourceStore extends AbstractStore<ResourceEvent, Resour
 
         if (resource instanceof DiscreteResource) {
             // check if already consumed
-            return getConsumer((DiscreteResource) resource).isEmpty();
+            return getConsumers((DiscreteResource) resource).isEmpty();
         } else {
             ContinuousResource requested = (ContinuousResource) resource;
             ContinuousResource registered = v.value().stream()