Add final modifiers to final variables

Add the final modifier to variables which
are set to a final value.

eWonConnector-gateway/src/main/java/com/hms_networks/americas/sc/ignition/EwonUtil.java

@@ -37,7 +37,7 @@ public class EwonUtil {
   private static final int defaultReadTimeout = 60000;
 
   /** Log handler */
-  private static Logger logger = LoggerFactory.getLogger("Ewon.EwonUtil");
+  private static final Logger logger = LoggerFactory.getLogger("Ewon.EwonUtil");
 
   /** Trust manager used for HTTP connections. Note: Bypasses trust verification. */
   private static final TrustManager[] BYPASS_TRUST_MGR =

eWonConnector-gateway/src/main/java/com/hms_networks/americas/sc/ignition/GatewayHook.java

@@ -38,7 +38,7 @@ public class GatewayHook extends AbstractGatewayModuleHook {
    * Listener for changes in Ewon Connector settings. Invokes {@link this#restart()} to restart the
    * connector.
    */
-  private RecordListenerAdapter<EwonConnectorSettings> settingsListener =
+  private final RecordListenerAdapter<EwonConnectorSettings> settingsListener =
       new RecordListenerAdapter<EwonConnectorSettings>() {
         public void recordUpdated(EwonConnectorSettings record) {
           logger.info("Settings have been updated. Restarting module.");

eWonConnector-gateway/src/main/java/com/hms_networks/americas/sc/ignition/SyncManager.java

@@ -87,25 +87,25 @@ public class SyncManager {
   private static final String CONFIG_EWON_ALL_REALTIME_TAG_NAME = "_config/AllRealtime";
 
   /** Hash set of registered Ewon Connector tags */
-  private HashSet<String> registeredTags = new HashSet<>();
+  private final HashSet<String> registeredTags = new HashSet<>();
 
   /** Hash set of registered Ewon Connector Ewons */
-  private HashSet<String> registeredEwons = new HashSet<>();
+  private final HashSet<String> registeredEwons = new HashSet<>();
 
   /** Hash set of Ewons to be updated in realtime */
-  private HashSet<String> realtimeEwons = new HashSet<>();
+  private final HashSet<String> realtimeEwons = new HashSet<>();
 
   /** Current gateway context */
-  GatewayContext gatewayContext;
+  final GatewayContext gatewayContext;
 
   /** Log handler */
-  Logger logger = LoggerFactory.getLogger("Ewon.EwonSyncManager");
+  final Logger logger = LoggerFactory.getLogger("Ewon.EwonSyncManager");
 
   /** Current tag provider */
-  ManagedTagProvider provider;
+  final ManagedTagProvider provider;
 
   /** Name of current tag provider */
-  String providerName;
+  final String providerName;
 
   /** Current communication manager */
   CommunicationManger comm;
@@ -114,7 +114,7 @@ public class SyncManager {
   String tagHistoryStore;
 
   /** Cache of last synchronization information, key = ewonId, value = lastSynchroDate */
-  Map<Integer, Date> lastSyncCache = new HashMap<>();
+  final Map<Integer, Date> lastSyncCache = new HashMap<>();
 
   /** Boolean if tag history is enabled */
   boolean historyEnabled = false;

eWonConnector-gateway/src/main/java/com/hms_networks/americas/sc/ignition/comm/CommunicationManger.java

@@ -13,7 +13,7 @@
 /** Ewon Connector communication manager */
 public class CommunicationManger {
   /** Communication manager logger */
-  private Logger logger = LoggerFactory.getLogger("Ewon.CommManager");
+  private final Logger logger = LoggerFactory.getLogger("Ewon.CommManager");
 
   /** JSON string and object serialization library */
   private final Gson gson = new Gson();

eWonConnector-gateway/src/main/java/com/hms_networks/americas/sc/ignition/config/EwonConnectorSettings.java

@@ -18,7 +18,7 @@
  */
 public class EwonConnectorSettings extends PersistentRecord {
   /** Record meta information for Ewon Connector */
-  public static RecordMeta<EwonConnectorSettings> META =
+  public static final RecordMeta<EwonConnectorSettings> META =
       new RecordMeta<>(EwonConnectorSettings.class, "ewonConnectorSettings");
 
   /** Ewon Connector identifier */

eWonConnector-gateway/src/main/java/com/hms_networks/americas/sc/ignition/data/EwonsData.java

@@ -9,7 +9,7 @@ public class EwonsData extends DMResult {
   boolean moreDataAvailable = false;
 
   /** Transaction identifier */
-  Long transactionId = 0L;
+  final Long transactionId = 0L;
 
   /**
    * Get array of every Ewon's data

eWonConnector-gateway/src/main/java/com/hms_networks/americas/sc/ignition/data/TMResult.java

@@ -8,7 +8,7 @@
 /** Class representation of a result from Talk2M */
 public class TMResult {
   /** Hash map of tag values in result */
-  HashMap<String, String> TagValues;
+  final HashMap<String, String> TagValues;
 
   /** Number of columns in Talk2M response */
   static final int NUM_COLUMNS = 6;