[ONOS-5084],[ONOS-5083] YANG schema registry for YMS
Change-Id: I88394307cb9be30237be0bb17e013d7af88a607c
diff --git a/apps/yms/app/src/main/java/org/onosproject/yms/app/ynh/YangNotificationExtendedService.java b/apps/yms/app/src/main/java/org/onosproject/yms/app/ynh/YangNotificationExtendedService.java
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+++ b/apps/yms/app/src/main/java/org/onosproject/yms/app/ynh/YangNotificationExtendedService.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2015-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.yms.app.ynh;
+
+import org.onosproject.event.ListenerService;
+import org.onosproject.yms.ynh.YangNotificationService;
+
+/**
+ * Abstraction of an entity which provides interfaces to YANG extended notification
+ * service. It provides extended interfaces required by YMS internal modules.
+ * Application registers their schema with YMSM, YMSM delegates the registration
+ * request to YSR. YSR then looks for the presence of notification in application
+ * schema, presence of notification will trigger YSR to ask YANG extended notification
+ * service to register it as a listener to that application events.
+ */
+public interface YangNotificationExtendedService extends YangNotificationService {
+
+ /**
+ * Registers as listener with application. This is called by YSR when it
+ * detects notification presence in application YANG file at the time when
+ * application registers it's schema with YMS.
+ *
+ * @param appObject application object
+ */
+ void registerAsListener(ListenerService appObject);
+
+ // TODO handle scenario when multiple services are implemented by single manager.
+}
diff --git a/apps/yms/app/src/main/java/org/onosproject/yms/app/ynh/package-info.java b/apps/yms/app/src/main/java/org/onosproject/yms/app/ynh/package-info.java
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+++ b/apps/yms/app/src/main/java/org/onosproject/yms/app/ynh/package-info.java
@@ -0,0 +1,21 @@
+/*
+ * 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.
+ */
+
+/**
+ * Provides implementation of YANG notification handler. YNH handles notification
+ * from the application and provide it to the protocols.
+ */
+package org.onosproject.yms.app.ynh;