1 files changed, 55 insertions, 0 deletions
diff --git a/dcae-analytics/dcae-analytics-model/src/main/java/org/onap/dcae/analytics/model/util/supplier/RandomIdSupplier.java b/dcae-analytics/dcae-analytics-model/src/main/java/org/onap/dcae/analytics/model/util/supplier/RandomIdSupplier.java
new file mode 100644
index 0000000..e1ec86a
--- /dev/null
+++ b/dcae-analytics/dcae-analytics-model/src/main/java/org/onap/dcae/analytics/model/util/supplier/RandomIdSupplier.java
@@ -0,0 +1,55 @@
+/*
+ * ================================================================================
+ * Copyright (c) 2018 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.dcae.analytics.model.util.supplier;
+
+import java.util.Locale;
+import java.util.Random;
+import java.util.function.Supplier;
+
+/**
+ * Supplies unsecured random ID with upper case with desired maximum length.
+ *
+ * @author Rajiv Singla
+ */
+public class RandomIdSupplier implements Supplier<String> {
+
+    private static final char[] LETTERS =
+            "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
+    private static final Random RANDOM = new Random();
+
+    private final int maxLength;
+
+    public RandomIdSupplier(int maxLength) {
+        this.maxLength = maxLength;
+    }
+
+
+    @Override
+    public String get() {
+
+        final StringBuilder sb = new StringBuilder(maxLength);
+        for (int i = 0; i < maxLength; i++) {
+            sb.append(LETTERS[RANDOM.nextInt(LETTERS.length)]);
+        }
+
+        return sb.toString().toUpperCase(Locale.getDefault());
+    }
+
+}