Github user jackylk commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/240#discussion_r84227827
--- Diff:
processing/src/main/java/org/apache/carbondata/processing/newflow/parser/CarbonParserFactory.java
---
@@ -0,0 +1,40 @@
+package org.apache.carbondata.processing.newflow.parser;
+
+import java.util.List;
+
+import
org.apache.carbondata.core.carbon.metadata.schema.table.column.CarbonColumn;
+import
org.apache.carbondata.core.carbon.metadata.schema.table.column.CarbonDimension;
+import
org.apache.carbondata.processing.newflow.parser.impl.ArrayParserImpl;
+import
org.apache.carbondata.processing.newflow.parser.impl.PrimitiveParserImpl;
+import
org.apache.carbondata.processing.newflow.parser.impl.StructParserImpl;
+
+public class CarbonParserFactory {
+
+ public static GenericParser createParser(CarbonColumn carbonColumn,
String[] complexDelimiters) {
+ return createParser(carbonColumn, complexDelimiters, 0);
+ }
+
+ private static GenericParser createParser(CarbonColumn carbonColumn,
String[] complexDelimiters,
+ int counter) {
+ switch (carbonColumn.getDataType()) {
+ case ARRAY:
+ List<CarbonDimension> listOfChildDimensions =
+ ((CarbonDimension) carbonColumn).getListOfChildDimensions();
+ ArrayParserImpl arrayParser = new
ArrayParserImpl(complexDelimiters[counter]);
+ for (CarbonDimension dimension : listOfChildDimensions) {
+ arrayParser.addChildren(createParser(dimension,
complexDelimiters, counter + 1));
+ }
+ return arrayParser;
+ case STRUCT:
+ List<CarbonDimension> dimensions =
+ ((CarbonDimension) carbonColumn).getListOfChildDimensions();
+ StructParserImpl parser = new
StructParserImpl(complexDelimiters[counter]);
+ for (CarbonDimension dimension : dimensions) {
+ parser.addChildren(createParser(dimension, complexDelimiters,
counter + 1));
+ }
+ return parser;
+ default:
--- End diff --
DataType can be Map, I think it is added in DataType already, so we should
add a case branch for Map, otherwise logic is not correct
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