initial commit
diff --git a/src/main/java/org.onosproject.xran/identifiers/LinkId.java b/src/main/java/org.onosproject.xran/identifiers/LinkId.java
new file mode 100644
index 0000000..8531d78
--- /dev/null
+++ b/src/main/java/org.onosproject.xran/identifiers/LinkId.java
@@ -0,0 +1,79 @@
+/*
+ * 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.xran.identifiers;
+
+import org.onosproject.xran.codecs.api.ECGI;
+import org.onosproject.xran.codecs.api.MMEUES1APID;
+import org.onosproject.xran.entities.RnibCell;
+import org.onosproject.xran.entities.RnibUe;
+
+public class LinkId {
+ private ECGI source;
+ private MMEUES1APID destination;
+
+ public LinkId(ECGI source, MMEUES1APID destination) {
+ this.source = source;
+ this.destination = destination;
+ }
+
+ public static LinkId valueOf(RnibCell cell, RnibUe ue) {
+ return new LinkId(cell.getEcgi(), ue.getMmeS1apId());
+ }
+
+ public ECGI getSource() {
+ return source;
+ }
+
+ public void setSource(ECGI source) {
+ this.source = source;
+ }
+
+ public MMEUES1APID getDestination() {
+ return destination;
+ }
+
+ public void setDestination(MMEUES1APID destination) {
+ this.destination = destination;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ return this == o ||
+ o != null &&
+ o instanceof LinkId &&
+ destination.equals(((LinkId) o).destination) &&
+ source.equals(((LinkId) o).source);
+
+ }
+
+ @Override
+ public int hashCode() {
+ int result = source.hashCode();
+ result = 31 * result + destination.hashCode();
+ return result;
+ }
+
+ @Override
+ public String toString() {
+ StringBuilder sb = new StringBuilder();
+ sb.append("{\n")
+ .append(source != null ? "\"cell\":" + source : "")
+ .append(destination != null ? ",\n\"ue\":" + destination : "")
+ .append("\n}\n");
+ return sb.toString();
+ }
+}