Package org.elasticsearch.xpack.esql.datasource.csv

Class CsvFixtureParser

java.lang.Object

org.elasticsearch.xpack.esql.datasource.csv.CsvFixtureParser

public final class CsvFixtureParser
extends Object

Standalone CSV parser for fixture generation. Parses CSV files with bracket-aware multi-value support, matching the behavior of CsvFormatReader.

Used by OrcFixtureGenerator and ParquetFixtureGenerator to read CSV fixtures with correct multi-value handling (e.g. [a,b,c] as a list, not just first element).

Minimal dependencies: only java.util, java.io, java.nio. No esql-core or server.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	CsvFixtureParser.ColumnSpec
static final record	CsvFixtureParser.CsvFixtureResult

Method Summary

Modifier and Type	Method	Description
static CsvFixtureParser.CsvFixtureResult	parseCsvFile(Path path)	Parse a CSV file and return schema plus rows with proper multi-value handling.
static CsvFixtureParser.CsvFixtureResult	parseCsvFile(Path path, char delimiter, char quote, char escape, String commentPrefix)	Parse a CSV file with custom delimiter, quote, escape, and comment prefix.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

parseCsvFile

public static CsvFixtureParser.CsvFixtureResult parseCsvFile(Path path)
                                                      throws IOException

Parse a CSV file and return schema plus rows with proper multi-value handling. Header must be in column:type format. Types: integer, long, double, keyword, boolean, date, ip, etc.

Throws:

IOException

parseCsvFile

public static CsvFixtureParser.CsvFixtureResult parseCsvFile(Path path,
 char delimiter,
 char quote,
 char escape,
 String commentPrefix)
                                                      throws IOException

Parse a CSV file with custom delimiter, quote, escape, and comment prefix.

Throws:

IOException