Method genDataSetFile

test/org/apache/pig/test/TestLocal2.java:263–307

For generating a sample dataset

(boolean hasNulls, int dataLength )

     * For generating a sample dataset
     */
    private File genDataSetFile(boolean hasNulls, int dataLength ) throws IOException {

        String[][] data = new String[dataLength][] ;

        DecimalFormat formatter = new DecimalFormat("0000000");

        if ( hasNulls == true ) {

                for (int i = 0; i < dataLength; i++) {

                     data[i] = new String[2] ;
                     if ( i % 7  == 0 ) {
                        data[i][0] = "";
                        data[i][1] = formatter.format(dataLength - i);

                     } else if ( i % 10 ==0  ) {

                        data[i][0] = formatter.format(i % 10);
                        data[i][1] = "";

                     } else if ( i % 13 == 0 ) {

                        data[i][0] = "";
                        data[i][1] = "";

                     } else {
                        data[i][0] = formatter.format(i % 10);
                        data[i][1] = formatter.format(dataLength - i);
                     }
             }

        } else {


            for (int i = 0; i < dataLength; i++) {
                data[i] = new String[2] ;
                data[i][0] = formatter.format(i % 10);
                data[i][1] = formatter.format(dataLength - i);
            }

        }
        File tmpFile = TestHelper.createTempFile(data) ;
        tmpFile.deleteOnExit();
        return tmpFile;
    }
}