Extend capability of distributed cache

- Extend cache configs to be able to work in stanalone mode as well as
  in cluster mode in kubernetes.
- Expose the parameters to enable or disable the feature.
- to make it work in standalone mode autodiscovery config will take care , and
  to run it on kubernetes enable the kubernetes option and provide the
  service name property.

Issue-ID: CPS-1637
Change-Id: I704c4aa11e65b17b5be80048e4246079014d8bb7
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>

1 files changed, 18 insertions, 0 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/config/embeddedcache/SynchronizationCacheConfig.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/config/embeddedcache/SynchronizationCacheConfig.java
index ac2bd45969..0b67266375 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/config/embeddedcache/SynchronizationCacheConfig.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/config/embeddedcache/SynchronizationCacheConfig.java
@@ -28,19 +28,28 @@ import com.hazelcast.core.Hazelcast;
 import com.hazelcast.core.HazelcastInstance;
 import com.hazelcast.map.IMap;
 import java.util.concurrent.BlockingQueue;
+import lombok.extern.slf4j.Slf4j;
 import org.onap.cps.spi.model.DataNode;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 /**
  * Core infrastructure of the hazelcast distributed caches for Module Sync and Data Sync use cases.
  */
+@Slf4j
 @Configuration
 public class SynchronizationCacheConfig {
 
     public static final int MODULE_SYNC_STARTED_TTL_SECS = 600;
     public static final int DATA_SYNC_SEMAPHORE_TTL_SECS = 1800;
 
+    @Value("${hazelcast.mode.kubernetes.enabled}")
+    private boolean cacheKubernetesEnabled;
+
+    @Value("${hazelcast.mode.kubernetes.service-name}")
+    private String cacheKubernetesServiceName;
+
     private static final QueueConfig commonQueueConfig = createQueueConfig();
     private static final MapConfig moduleSyncStartedConfig = createMapConfig("moduleSyncStartedConfig");
     private static final MapConfig dataSyncSemaphoresConfig = createMapConfig("dataSyncSemaphoresConfig");
@@ -92,6 +101,7 @@ public class SynchronizationCacheConfig {
             config.addQueueConfig((QueueConfig) namedConfig);
         }
         config.setClusterName("synchronization-caches");
+        updateDiscoveryMode(config);
         return config;
     }
 
@@ -109,4 +119,12 @@ public class SynchronizationCacheConfig {
         return mapConfig;
     }
 
+    private 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);
+        }
+    }
+
 }