1 files changed, 51 insertions, 0 deletions
diff --git a/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/util/FQI.java b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/util/FQI.java
new file mode 100644
index 00000000..66b59b17
--- /dev/null
+++ b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/util/FQI.java
@@ -0,0 +1,51 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.ccsdk
+ * ===========================================================================
+ * Copyright (c) 2023 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====================================================
+ *
+ */
+
+package org.onap.ccsdk.apps.cadi.util;
+
+public class FQI {
+    /**
+     * Take a Fully Qualified User, and get a Namespace from it.
+     * @param fqi
+     * @return
+     */
+    public final static String reverseDomain(final String fqi) {
+        StringBuilder sb = null;
+        String[] split = Split.split('.',fqi);
+        int at;
+        for (int i=split.length-1;i>=0;--i) {
+            if (sb == null) {
+                sb = new StringBuilder();
+            } else {
+                sb.append('.');
+            }
+
+            if ((at = split[i].indexOf('@'))>0) {
+                sb.append(split[i].subSequence(at+1, split[i].length()));
+            } else {
+                sb.append(split[i]);
+            }
+        }
+
+        return sb==null?"":sb.toString();
+    }
+
+}