1 files changed, 62 insertions, 0 deletions
diff --git a/openecomp-ui/src/nfvo-utils/json/JSONPointer.js b/openecomp-ui/src/nfvo-utils/json/JSONPointer.js
new file mode 100644
index 0000000000..a6e8198537
--- /dev/null
+++ b/openecomp-ui/src/nfvo-utils/json/JSONPointer.js
@@ -0,0 +1,62 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+const JSONPointer = {
+
+	extractParentPointer(pointer) {
+		return pointer.replace(/\/[^\/]+$/, '');
+	},
+
+	extractLastPart(pointer) {
+		const [,lastPart] = pointer.match(/\/([^\/]+)$/) || [];
+		return lastPart;
+	},
+
+	extractParts(pointer) {
+		return pointer.split('/').slice(1)
+			.map(part => part.replace(/~1/g, '/'))
+			.map(part => part.replace(/~0/g, '~'));
+	},
+
+	getValue(object, pointer) {
+		let parts = JSONPointer.extractParts(pointer);
+		return parts.reduce((object, part) => object && object[part], object);
+	},
+
+	setValue(object, pointer, value) {
+		let clone = obj => Array.isArray(obj) ? [...obj] : {...obj};
+
+		let parts = JSONPointer.extractParts(pointer),
+			newObject = clone(object),
+			subObject = object,
+			subNewObject = newObject;
+
+		for(let i = 0, n = parts.length - 1; i < n; ++i) {
+			let nextSubObject = subObject && subObject[parts[i]];
+			subNewObject = subNewObject[parts[i]] = nextSubObject ? clone(nextSubObject) : {};
+			subObject = nextSubObject;
+		}
+		subNewObject[parts[parts.length - 1]] = value;
+
+		return newObject;
+	}
+};
+
+export default JSONPointer;