[ONOS-5729] VirtualFlowRuleStore implementation
Changes
1. VirtualStore and AbstractVirtualStore are defined
2. SimpleFlowRuleStore is added
3. FlowRuleStoreDeligate is implemented
Change-Id: Ic1f3d25f8a52d8c9bb6bc4de67abc0d642f47c9c
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualStore.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualStore.java
new file mode 100644
index 0000000..95249f4
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualStore.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2016-present 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.incubator.net.virtual;
+
+import org.onosproject.event.Event;
+import org.onosproject.store.StoreDelegate;
+
+/**
+ * Abstraction of a entity capable of storing and/or distributing information
+ * for virtual network across a cluster.
+ */
+public interface VirtualStore<E extends Event, D extends StoreDelegate<E>> {
+ /**
+ * Sets the delegate on the store.
+ *
+ * @param networkId a virtual network identifier
+ * @param delegate new store delegate
+ * @throws java.lang.IllegalStateException if a delegate is already
+ * currently set on the store and is a different one that
+ */
+ void setDelegate(NetworkId networkId, D delegate);
+
+ /**
+ * Withdraws the delegate from the store.
+ *
+ * @param networkId a virtual network identifier
+ * @param delegate store delegate to withdraw
+ * @throws java.lang.IllegalArgumentException if the delegate is not
+ * currently set on the store
+ */
+ void unsetDelegate(NetworkId networkId, D delegate);
+
+ /**
+ * Indicates whether the store has a delegate.
+ *
+ * @param networkId a virtual network identifier
+ * @return true if delegate is set
+ */
+ boolean hasDelegate(NetworkId networkId);
+}