Github user jackylk commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/518#discussion_r95506643
--- Diff:
integration/spark-common/src/main/scala/org/apache/carbondata/spark/util/CommonUtil.scala
---
@@ -301,4 +304,45 @@ object CommonUtil {
LOGGER.info(s"mapreduce.input.fileinputformat.split.maxsize: ${
newSplitSize.toString }")
}
}
+
+ def getCsvHeaderColumns(carbonLoadModel: CarbonLoadModel): Array[String]
= {
+ val delimiter = if
(StringUtils.isEmpty(carbonLoadModel.getCsvDelimiter)) {
+ CarbonCommonConstants.COMMA
+ } else {
+ CarbonUtil.delimiterConverter(carbonLoadModel.getCsvDelimiter)
+ }
+ var csvFile: String = null
+ var csvHeader: String = carbonLoadModel.getCsvHeader
+ val csvColumns = if (StringUtils.isBlank(csvHeader)) {
+ // read header from csv file
+ csvFile = carbonLoadModel.getFactFilePath.split(",")(0)
+ csvHeader = CarbonUtil.readHeader(csvFile)
+ if (StringUtils.isBlank(csvHeader)) {
+ throw new CarbonDataLoadingException("First line of the csv is not
valid.")
+ }
+ csvHeader.toLowerCase().split(delimiter).map(_.replaceAll("\"",
"").trim)
+ } else {
+ csvHeader.toLowerCase.split(CarbonCommonConstants.COMMA).map(_.trim)
+ }
+
+ if
(!CarbonDataProcessorUtil.isHeaderValid(carbonLoadModel.getTableName,
csvColumns,
+ carbonLoadModel.getCarbonDataLoadSchema)) {
+ if (csvFile == null) {
+ LOGGER.error("CSV header provided in DDL is not proper."
+ + " Column names in schema and CSV header are not the
same.")
+ throw new CarbonDataLoadingException(
+ "CSV header provided in DDL is not proper. Column names in
schema and CSV header are "
+ + "not the same.")
+ } else {
+ LOGGER.error(
+ "CSV File provided is not proper. Column names in schema and csv
header are not same. "
--- End diff --
Better to tell "CSV header in the input file ($csvFile) is not proper."
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