swapna267 commented on code in PR #15279:
URL: https://github.com/apache/iceberg/pull/15279#discussion_r2829056470


##########
flink/v2.1/flink/src/main/java/org/apache/iceberg/flink/FlinkDynamicTableFactory.java:
##########
@@ -131,6 +140,46 @@ public String factoryIdentifier() {
     return FACTORY_IDENTIFIER;
   }
 
+  private IcebergTableSink getIcebergTableSinkWithDynamicSinkProps(
+      Context context, Configuration flinkConf, Map<String, String> 
writeProps) {
+    String dynamicRecordGeneratorImpl =
+        flinkConf.get(FlinkCreateTableOptions.DYNAMIC_RECORD_GENERATOR_IMPL);
+    Preconditions.checkNotNull(
+        dynamicRecordGeneratorImpl,
+        "%s must be specified when use-dynamic-iceberg-sink is true",
+        FlinkCreateTableOptions.DYNAMIC_RECORD_GENERATOR_IMPL.key());
+
+    CatalogLoader catalogLoader;
+    if (catalog != null) {
+      catalogLoader = catalog.getCatalogLoader();
+    } else {
+      FlinkCatalog flinkCatalog =
+          createCatalogLoader(writeProps, 
flinkConf.get(FlinkCreateTableOptions.CATALOG_NAME));
+      catalogLoader = flinkCatalog.getCatalogLoader();
+    }
+
+    ResolvedCatalogTable resolvedCatalogTable = context.getCatalogTable();
+
+    return new IcebergTableSink(
+        catalogLoader,
+        dynamicRecordGeneratorImpl,
+        resolvedCatalogTable.getResolvedSchema(),
+        context.getConfiguration(),
+        writeProps);
+  }
+
+  private static FlinkCatalog createCatalogLoader(
+      Map<String, String> tableProps, String catalogName) {
+    Preconditions.checkNotNull(

Review Comment:
   Sure. Cleaned up other nonnull checks and removed following 2 as they will 
never happen.
   
   `Preconditions.checkNotNull(catalog, "Flink catalog cannot be null");`
   
   `Preconditions.checkNotNull(catalogTable, "The iceberg table name cannot be 
null");`



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