1 files changed, 85 insertions, 0 deletions
diff --git a/cps-service/src/main/java/org/onap/cps/cache/HazelcastCacheConfig.java b/cps-service/src/main/java/org/onap/cps/cache/HazelcastCacheConfig.java
new file mode 100644
index 000000000..4aebceae0
--- /dev/null
+++ b/cps-service/src/main/java/org/onap/cps/cache/HazelcastCacheConfig.java
@@ -0,0 +1,85 @@
+/*
+ * ============LICENSE_START========================================================
+ *  Copyright (C) 2023 Nordix Foundation
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.cache;
+
+import com.hazelcast.config.Config;
+import com.hazelcast.config.MapConfig;
+import com.hazelcast.config.NamedConfig;
+import com.hazelcast.config.QueueConfig;
+import com.hazelcast.core.Hazelcast;
+import com.hazelcast.core.HazelcastInstance;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+
+/**
+ * Core infrastructure of the hazelcast distributed cache.
+ */
+@Slf4j
+public class HazelcastCacheConfig {
+
+    @Value("${hazelcast.mode.kubernetes.enabled}")
+    protected boolean cacheKubernetesEnabled;
+
+    @Value("${hazelcast.mode.kubernetes.service-name}")
+    protected String cacheKubernetesServiceName;
+
+    protected HazelcastInstance createHazelcastInstance(final String hazelcastInstanceName,
+                                                        final NamedConfig namedConfig, final String clusterName) {
+        return Hazelcast.newHazelcastInstance(initializeConfig(hazelcastInstanceName, namedConfig, clusterName));
+    }
+
+    private Config initializeConfig(final String instanceName, final NamedConfig namedConfig,
+                                    final String clusterName) {
+        final Config config = new Config(instanceName);
+        if (namedConfig instanceof MapConfig) {
+            config.addMapConfig((MapConfig) namedConfig);
+        }
+        if (namedConfig instanceof QueueConfig) {
+            config.addQueueConfig((QueueConfig) namedConfig);
+        }
+        config.setClusterName(clusterName);
+        updateDiscoveryMode(config);
+        return config;
+    }
+
+    protected static MapConfig createMapConfig(final String configName) {
+        final MapConfig mapConfig = new MapConfig(configName);
+        mapConfig.setBackupCount(3);
+        mapConfig.setAsyncBackupCount(3);
+        return mapConfig;
+    }
+
+    protected static QueueConfig createQueueConfig(final String configName) {
+        final QueueConfig commonQueueConfig = new QueueConfig(configName);
+        commonQueueConfig.setBackupCount(3);
+        commonQueueConfig.setAsyncBackupCount(3);
+        return commonQueueConfig;
+    }
+
+    protected void updateDiscoveryMode(final Config config) {
+        if (cacheKubernetesEnabled) {
+            log.info("Enabling kubernetes mode with service-name : {}", cacheKubernetesServiceName);
+            config.getNetworkConfig().getJoin().getKubernetesConfig().setEnabled(true)
+                .setProperty("service-name", cacheKubernetesServiceName);
+        }
+    }
+
+}