[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/ysr/YsrAppContext.java b/apps/yms/app/src/main/java/org/onosproject/yms/app/ysr/YsrAppContext.java
new file mode 100644
index 0000000..4f076ab
--- /dev/null
+++ b/apps/yms/app/src/main/java/org/onosproject/yms/app/ysr/YsrAppContext.java
@@ -0,0 +1,192 @@
+/*
+ * 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.yms.app.ysr;
+
+import com.google.common.collect.ImmutableMap;
+import org.onosproject.yangutils.datamodel.YangSchemaNode;
+
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+/**
+ * Represents registered application's context for YANG schema registry.
+ */
+public class YsrAppContext {
+
+ /**
+ * Current application's YANG schema node.
+ */
+ private YangSchemaNode curNode;
+
+ /**
+ * Current application's YANG schema node with different revision store.
+ */
+ private final ConcurrentMap<String, YangSchemaNode>
+ multiRevisionSchemaNodeStore;
+
+ /**
+ * Current application's object.
+ */
+ private Object appObject;
+
+ /**
+ * Jar file path.
+ */
+ private String jarPath;
+
+ /**
+ * If for current object notification is registered.
+ */
+ private boolean isNotificationRegistered;
+
+ /**
+ * Creates an instance of YANG schema registry application context.
+ */
+ YsrAppContext() {
+ multiRevisionSchemaNodeStore = new ConcurrentHashMap<>();
+ }
+
+ /**
+ * Returns current application's object.
+ *
+ * @return current application's object
+ */
+ Object appObject() {
+ return appObject;
+ }
+
+ /**
+ * Sets current application's object.
+ *
+ * @param appObject current application's object
+ */
+ void appObject(Object appObject) {
+ this.appObject = appObject;
+ }
+
+ /**
+ * Returns current application's YANG schema node.
+ *
+ * @return current application's YANG schema node
+ */
+ YangSchemaNode curNode() {
+ return curNode;
+ }
+
+ /**
+ * Sets current application's schema node.
+ *
+ * @param node current schema's node
+ */
+ void curNode(YangSchemaNode node) {
+ curNode = node;
+ }
+
+ /**
+ * Returns jar file path.
+ *
+ * @return jar file path
+ */
+ String jarPath() {
+ return jarPath;
+ }
+
+ /**
+ * Sets jar file path.
+ *
+ * @param jarPath jar file path
+ */
+ void jarPath(String jarPath) {
+ this.jarPath = jarPath;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(curNode, appObject);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof YsrAppContext) {
+ YsrAppContext that = (YsrAppContext) obj;
+ return Objects.equals(curNode, that.curNode) &&
+ Objects.equals(appObject, that.appObject);
+ }
+ return false;
+ }
+
+ /**
+ * Returns true if for application object notification is registered.
+ *
+ * @return true if for application object notification is registered
+ */
+ boolean isNotificationRegistered() {
+ return isNotificationRegistered;
+ }
+
+ /**
+ * Sets true if for application object notification is registered.
+ *
+ * @param notificationRegistered true if for application object notification is registered
+ */
+ void setNotificationRegistered(boolean notificationRegistered) {
+ isNotificationRegistered = notificationRegistered;
+ }
+
+ /**
+ * Returns YANG schema node store for specific revision.
+ *
+ * @return YANG schema node store for specific revision
+ */
+ Map<String, YangSchemaNode> getYangSchemaNodeForRevisionStore() {
+ return ImmutableMap.copyOf(multiRevisionSchemaNodeStore);
+ }
+
+ /**
+ * Returns a schema node for specific revision from store.
+ *
+ * @param nodeNameWithRevision schema node name for specific revision
+ * @return schema node for specific revision.
+ */
+ YangSchemaNode getSchemaNodeForRevisionStore(String nodeNameWithRevision) {
+ return multiRevisionSchemaNodeStore.get(nodeNameWithRevision);
+ }
+
+ /**
+ * Removes a schema node of specific revision from store.
+ *
+ * @param nodeNameWithRevision schema node name for specific revision
+ */
+ void removeSchemaNodeForRevisionStore(String nodeNameWithRevision) {
+ multiRevisionSchemaNodeStore.remove(nodeNameWithRevision);
+ }
+
+ /**
+ * Adds schema node with revision from store.
+ *
+ * @param nodeNameWithRevision schema node name for specific revision
+ * @param schemaNode schema node for specific revision
+ */
+ void addSchemaNodeWithRevisionStore(String nodeNameWithRevision, YangSchemaNode schemaNode) {
+ multiRevisionSchemaNodeStore.put(nodeNameWithRevision, schemaNode);
+ }
+}