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SOLVED Writing a custom CSV importer

  • I want to write a custom CSV importer by extending the AbstractCSVDataSource and overriding the appropriate method:

        public void importRow(String[] row, int rowNum)

    My issue is that I don't know what String[] row will look like. There's obviously a parser that provides this but I'm not sure where to find it or whether it changes.

    Can anyone point me in the right direction? For now I'll just hack in a System.out.println() and go from what I see there.


  • Hi cbyrne,

    Unfortunately the Data File Data Source is in one of our private repositories, so I cannot link you to the source code directly.

    The parser being used is a which is getting its separator, quote character, and escape character from the AbstractCSVDataSource class, unless you override the methods providing these in your implementing class, i.e.

    public char getSeparatorCharacter() {
        return ','; //split on commas
    public char getQuoteCharacter() {
        return '"'; //unless the commas are in quote pairs
    public char getEscapeCharacter() {
        return '\\';

    It will pass each line that it reads as it reads and parses it to the import row function.

  • Perfect, thanks for your help @phildunlap . Much appreciated!