ICS sample producer and consumer

[nonrtric.git] / sample-services / ics-producer-consumer / producer / src / main / java / com / demo / producer / messages / MessageHelper.java

diff --git a/sample-services/ics-producer-consumer/producer/src/main/java/com/demo/producer/messages/MessageHelper.java b/sample-services/ics-producer-consumer/producer/src/main/java/com/demo/producer/messages/MessageHelper.java
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+++ b/sample-services/ics-producer-consumer/producer/src/main/java/com/demo/producer/messages/MessageHelper.java
@@ -0,0 +1,71 @@
+/*-
+ * ========================LICENSE_START=================================
+ * O-RAN-SC
+ *
+ * Copyright (C) 2024: OpenInfra Foundation Europe
+ *
+ * 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 com.demo.producer.messages;
+
+import java.util.Properties;
+import java.util.Random;
+import org.json.simple.JSONObject;
+
+public class MessageHelper {
+
+    private static Properties props;
+
+    public static String getRandomString() {
+        int leftLimit = 48; // numeral '0'
+        int rightLimit = 122; // letter 'z'
+        int targetStringLength = 10;
+        Random random = new Random();
+
+        return random.ints(leftLimit, rightLimit + 1).filter(i -> (i <= 57 || i >= 65) && (i <= 90 || i >= 97))
+                .limit(targetStringLength)
+                .collect(StringBuilder::new, StringBuilder::appendCodePoint, StringBuilder::append).toString();
+    }
+
+    @SuppressWarnings("unchecked") // Using only strings
+    public static JSONObject getMessageLogEntryJSON(String source, String topic, String key, String message)
+            throws Exception {
+        JSONObject obj = new JSONObject();
+        String bootstrapServers = getProperties().getProperty("bootstrap.servers");
+        obj.put("bootstrapServers", bootstrapServers);
+        obj.put("source", source);
+        obj.put("topic", topic);
+        obj.put("key", key);
+        obj.put("message", message);
+
+        return obj;
+    }
+
+
+    @SuppressWarnings("unchecked")
+    public static JSONObject getSimpleJSONObject(String message){
+        JSONObject obj = new JSONObject();
+        obj.put("message", message);
+        return obj;
+    }
+
+    protected static Properties getProperties() throws Exception {
+        if (props == null) {
+            props = PropertiesHelper.getProperties();
+        }
+        return props;
+    }
+
+}