Implement event notification of resource event
When a resource is registered or unregistered, a resource event is notified
Change-Id: I40e66761966ef2126366424a14bb3193fc850e5a
diff --git a/core/api/src/main/java/org/onosproject/net/newresource/ResourceEvent.java b/core/api/src/main/java/org/onosproject/net/newresource/ResourceEvent.java
new file mode 100644
index 0000000..98abf30
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/newresource/ResourceEvent.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.newresource;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.event.AbstractEvent;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Describes an event related to a resource.
+ */
+@Beta
+public final class ResourceEvent extends AbstractEvent<ResourceEvent.Type, ResourcePath> {
+
+ /**
+ * Type of resource events.
+ */
+ @Beta
+ public enum Type {
+ /**
+ * Signifies that a new resource has been detected.
+ */
+ RESOURCE_ADDED,
+
+ /**
+ * Signifies that a resource has been removed.
+ */
+ RESOURCE_REMOVED
+ }
+
+ /**
+ * Create a resource event.
+ *
+ * @param type type of resource event
+ * @param subject subject of resource event
+ */
+ public ResourceEvent(Type type, ResourcePath subject) {
+ super(checkNotNull(type), checkNotNull(subject));
+ }
+}
diff --git a/core/api/src/main/java/org/onosproject/net/newresource/ResourceListener.java b/core/api/src/main/java/org/onosproject/net/newresource/ResourceListener.java
new file mode 100644
index 0000000..3f87190
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/newresource/ResourceListener.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.newresource;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.event.EventListener;
+
+/**
+ * Entity capable of receiving resource related events.
+ */
+@Beta
+public interface ResourceListener extends EventListener<ResourceEvent> {
+}
diff --git a/core/api/src/main/java/org/onosproject/net/newresource/ResourceService.java b/core/api/src/main/java/org/onosproject/net/newresource/ResourceService.java
index ad684c8..966de50 100644
--- a/core/api/src/main/java/org/onosproject/net/newresource/ResourceService.java
+++ b/core/api/src/main/java/org/onosproject/net/newresource/ResourceService.java
@@ -17,6 +17,7 @@
import com.google.common.annotations.Beta;
import com.google.common.collect.ImmutableList;
+import org.onosproject.event.ListenerService;
import java.util.Arrays;
import java.util.Collection;
@@ -29,7 +30,7 @@
* Service for allocating/releasing resource(s) and retrieving allocation(s) and availability.
*/
@Beta
-public interface ResourceService {
+public interface ResourceService extends ListenerService<ResourceEvent, ResourceListener> {
/**
* Allocates the specified resource to the specified user.
*
diff --git a/core/api/src/main/java/org/onosproject/net/newresource/ResourceStore.java b/core/api/src/main/java/org/onosproject/net/newresource/ResourceStore.java
index 2cab9d4..7c67430 100644
--- a/core/api/src/main/java/org/onosproject/net/newresource/ResourceStore.java
+++ b/core/api/src/main/java/org/onosproject/net/newresource/ResourceStore.java
@@ -16,6 +16,7 @@
package org.onosproject.net.newresource;
import com.google.common.annotations.Beta;
+import org.onosproject.store.Store;
import java.util.Collection;
import java.util.List;
@@ -25,7 +26,7 @@
* Service for storing resource and consumer information.
*/
@Beta
-public interface ResourceStore {
+public interface ResourceStore extends Store<ResourceEvent, ResourceStoreDelegate> {
/**
* Registers the resources in transactional way.
diff --git a/core/api/src/main/java/org/onosproject/net/newresource/ResourceStoreDelegate.java b/core/api/src/main/java/org/onosproject/net/newresource/ResourceStoreDelegate.java
new file mode 100644
index 0000000..a0b9bb2
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/newresource/ResourceStoreDelegate.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.newresource;
+
+import org.onosproject.store.StoreDelegate;
+
+/**
+ * Resource store delegate abstraction.
+ */
+public interface ResourceStoreDelegate extends StoreDelegate<ResourceEvent> {
+}