kumaab commented on code in PR #442:
URL: https://github.com/apache/ranger/pull/442#discussion_r1880797566


##########
agents-common/src/main/java/org/apache/ranger/plugin/client/HadoopConfigHolder.java:
##########
@@ -27,450 +32,428 @@
 import java.util.Properties;
 import java.util.Set;
 
-import org.apache.commons.lang.StringUtils;
-import org.apache.hadoop.security.SecureClientLogin;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+public class HadoopConfigHolder {
+    private static final Logger LOG = 
LoggerFactory.getLogger(HadoopConfigHolder.class);
+
+    public static final String GLOBAL_LOGIN_PARAM_PROP_FILE          = 
"hadoop-login.properties";
+    public static final String DEFAULT_DATASOURCE_PARAM_PROP_FILE    = 
"datasource.properties";
+    public static final String RESOURCEMAP_PROP_FILE                 = 
"resourcenamemap.properties";
+    public static final String DEFAULT_RESOURCE_NAME                 = 
"core-site.xml";
+    public static final String RANGER_SECTION_NAME                   = 
"xalogin.xml";
+    public static final String RANGER_LOGIN_USER_NAME_PROP           = 
"username";
+    public static final String RANGER_LOGIN_KEYTAB_FILE_PROP         = 
"keytabfile";
+    public static final String RANGER_LOGIN_PASSWORD                 = 
"password";
+    public static final String RANGER_LOOKUP_PRINCIPAL               = 
"lookupprincipal";
+    public static final String RANGER_LOOKUP_KEYTAB                  = 
"lookupkeytab";
+    public static final String RANGER_PRINCIPAL                      = 
"rangerprincipal";
+    public static final String RANGER_KEYTAB                         = 
"rangerkeytab";
+    public static final String RANGER_NAME_RULES                     = 
"namerules";
+    public static final String RANGER_AUTH_TYPE                      = 
"authtype";
+    public static final String HADOOP_SECURITY_AUTHENTICATION        = 
"hadoop.security.authentication";
+    public static final String HADOOP_NAME_RULES                     = 
"hadoop.security.auth_to_local";
+    public static final String HADOOP_SECURITY_AUTHENTICATION_METHOD = 
"kerberos";
+    public static final String HADOOP_RPC_PROTECTION                 = 
"hadoop.rpc.protection";
+    public static final String ENABLE_HIVE_METASTORE_LOOKUP          = 
"enable.hive.metastore.lookup";
+    public static final String HIVE_SITE_FILE_PATH                   = 
"hive.site.file.path";
+
+    private static       boolean                                  initialized;
+    private static final Map<String, HashMap<String, Properties>> 
dataSource2ResourceListMap    = new HashMap<>();
+    private static final Map<String, HadoopConfigHolder>          
dataSource2HadoopConfigHolder = new HashMap<>();
+    private static       Properties                               
globalLoginProp               = new Properties();

Review Comment:
   please move the non-final members to a different section.



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