[ONOS-5363] Support for virtualization in Provider Scheme
Change-Id: I4b38bbe9144d2d726414497f73eb5c1f022ce53b
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/AbstractVirtualProviderService.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/AbstractVirtualProviderService.java
new file mode 100644
index 0000000..b257d2e
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/AbstractVirtualProviderService.java
@@ -0,0 +1,51 @@
+/*
+ * 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.provider;
+
+import static com.google.common.base.Preconditions.checkState;
+
+public abstract class AbstractVirtualProviderService<P extends VirtualProvider>
+ implements VirtualProviderService {
+
+ private boolean isValid = true;
+ private final P provider;
+
+ protected AbstractVirtualProviderService(P provider) {
+ this.provider = provider;
+ }
+
+ /**
+ * Invalidates this provider service.
+ */
+ public void invalidate() {
+ isValid = false;
+ }
+
+ /**
+ * Checks the validity of this provider service.
+ *
+ * @throws java.lang.IllegalStateException if the service is no longer valid
+ */
+ public void checkValidity() {
+ checkState(isValid, "Provider service is no longer valid");
+ }
+
+ @Override
+ public P provider() {
+ return provider;
+ }
+}