jerrypeng commented on a change in pull request #9413:
URL: https://github.com/apache/pulsar/pull/9413#discussion_r570455165



##########
File path: 
pulsar-functions/utils/src/main/java/org/apache/pulsar/functions/utils/io/ConnectorUtils.java
##########
@@ -102,57 +99,47 @@ public static String getIOSinkClass(ClassLoader 
classLoader) throws IOException
         return conf.getSinkClass();
     }
 
-    public static ConnectorDefinition getConnectorDefinition(String narPath, 
String narExtractionDirectory) throws IOException {
-        try (NarClassLoader ncl = NarClassLoader.getFromArchive(new 
File(narPath), Collections.emptySet(), narExtractionDirectory)) {
-            return getConnectorDefinition(ncl);
-        }
-    }
-
-    public static ConnectorDefinition getConnectorDefinition(ClassLoader 
classLoader) throws IOException {
-        NarClassLoader narClassLoader = (NarClassLoader) classLoader;
+    public static ConnectorDefinition getConnectorDefinition(NarClassLoader 
narClassLoader) throws IOException {
         String configStr = 
narClassLoader.getServiceDefinition(PULSAR_IO_SERVICE_NAME);
 
         return ObjectMapperFactory.getThreadLocalYaml().readValue(configStr, 
ConnectorDefinition.class);
     }
 
-    public static List<ConfigFieldDefinition> 
getConnectorConfigDefinition(String narPath,
-                                                                           
String configClassName,
-                                                                           
String narExtractionDirectory) throws Exception {
+    public static List<ConfigFieldDefinition> 
getConnectorConfigDefinition(ClassLoader narClassLoader,

Review comment:
       We don't need a NarClassLoader.  A ClassLoader should suffice. I will 
rename the variable




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