update: integrate CMAB service into OptimizelyFactory

Author: FarhanAnjum-opti

core-httpclient-impl/src/main/java/com/optimizely/ab/OptimizelyFactory.java

@@ -16,22 +16,29 @@
  */
 package com.optimizely.ab;
 
+import java.util.concurrent.TimeUnit;
+
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.optimizely.ab.cmab.DefaultCmabClient;
+import com.optimizely.ab.cmab.client.CmabClientConfig;
+import com.optimizely.ab.cmab.service.CmabCacheValue;
+import com.optimizely.ab.cmab.service.CmabServiceOptions;
+import com.optimizely.ab.cmab.service.DefaultCmabService;
 import com.optimizely.ab.config.HttpProjectConfigManager;
 import com.optimizely.ab.config.ProjectConfig;
 import com.optimizely.ab.config.ProjectConfigManager;
 import com.optimizely.ab.event.AsyncEventHandler;
 import com.optimizely.ab.event.BatchEventProcessor;
 import com.optimizely.ab.event.EventHandler;
+import com.optimizely.ab.internal.DefaultLRUCache;
 import com.optimizely.ab.internal.PropertyUtils;
 import com.optimizely.ab.notification.NotificationCenter;
 import com.optimizely.ab.odp.DefaultODPApiManager;
 import com.optimizely.ab.odp.ODPApiManager;
 import com.optimizely.ab.odp.ODPManager;
-import org.apache.http.impl.client.CloseableHttpClient;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.concurrent.TimeUnit;
 
 /**
  * OptimizelyFactory is a utility class to instantiate an {@link Optimizely} client with a minimal
@@ -369,11 +376,19 @@ public static Optimizely newDefaultInstance(ProjectConfigManager configManager,
             .withApiManager(odpApiManager != null ? odpApiManager : new DefaultODPApiManager())
             .build();
 
+        DefaultCmabClient defaultCmabClient = new DefaultCmabClient(CmabClientConfig.withDefaultRetry());
+        int DEFAULT_MAX_SIZE = 1000;
+        int DEFAULT_CMAB_CACHE_TIMEOUT = 30 * 60 * 1000;
+        DefaultLRUCache<CmabCacheValue> cmabCache = new DefaultLRUCache<>(DEFAULT_MAX_SIZE, DEFAULT_CMAB_CACHE_TIMEOUT);
+        CmabServiceOptions cmabServiceOptions = new CmabServiceOptions(logger, cmabCache, defaultCmabClient);
+        DefaultCmabService cmabService = new DefaultCmabService(cmabServiceOptions);
+
         return Optimizely.builder()
             .withEventProcessor(eventProcessor)
             .withConfigManager(configManager)
             .withNotificationCenter(notificationCenter)
             .withODPManager(odpManager)
+            .withCmabService(cmabService)
             .build();
     }
 }